Commit graph inspector/clients/cli
Author SHA1 Message Date
cliffhall
2bb0b6245c fix(oauth): walk the candidates in the CLI refresh path too
Copilot review round 1.

`refreshStoredAuthToken` consumes the same fallback and made a single SDK
discovery call, so preserving the path there — without the walk the other two
consumers got — would have regressed exactly the case the walk exists to keep:
a path-hosted MCP server whose authorization metadata is published at the
domain root.

It injects its own discovery function as a test seam, so the walk is now also
exposed as `discoverAuthorizationServerMetadataFromCandidates(candidates,
discover)`, which takes that function and reports *which* candidate answered —
the CLI needs the winning URL, since it is the base the token request is made
against, not just the metadata.

Also drops the `as unknown as typeof fetch` from the new test in favour of
`vi.fn<typeof fetch>()`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013hzwzS8UvBsr4yZm7o7sev
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 00:34:27 -04:00
cliffhall
182c48f296 fix: stop claiming a bare-true replacement narrows the contract
Copilot review round 8 (its one suppressed finding; no new inline comments).

The `boolean-schema` suggestion for a bare `true` said the replacement
"narrows the schema deliberately". That holds in an ordinary property
position and inverts under a negating parent: `{"not": true}` rejects
every value, so swapping in `{"type": "object", …}` leaves the parent
rejecting only objects and every non-object then passes — the enclosing
contract is widened. Under `if` it redirects which branch applies rather
than tightening anything.

- Parent-aware advice under `not`: suggest `{}`, which is the exact
  object form of `true` and is already exempt from `untyped-schema` in
  that position, with the message saying why a concrete type would be
  wrong there.
- Everywhere else, and in the `untyped-schema` suggestion too, describe
  the replacement as a deliberate CHANGE of contract rather than a
  narrowing. A suggestion has no business claiming an effect it cannot
  guarantee across the positions it can print from.

Tests pin the `not`-specific advice and assert no bare-`true` suggestion
in any of the three positions contains "narrow". The CLI README's sample
report is re-captured from a real run.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 03:41:17 -04:00
cliffhall
31bdd532a6 fix: walk contentSchema, await the error envelope, correct the README claim
Copilot review round 7.

- Add `contentSchema` to the traversal. It holds the schema the decoded
  string content must satisfy, so a bare `true` or a remote `$ref` under
  it is a real finding all three clients were walking past. Also admit
  the three content keywords to `CONSTRAINING_KEYWORDS` on the same
  documented grounds as `format` — annotation-only by vocabulary, but
  plainly an attempt to constrain, so reporting such a schema as
  accepting anything would be noise. The comment now names that
  category rather than singling `format` out.

- Make `handleError` async and await the envelope write. Round 6 made
  the `--strict` report await its write and stopped one line short: the
  envelope emitted for the very same throw still raced `process.exit()`,
  so the machine-readable line a CI caller parses could be lost on a
  pipe. The launcher's comment claiming the envelope was "well inside
  the pipe buffer" was wrong reasoning and is replaced — fitting in the
  buffer says nothing about whether the write was performed. Its call
  site now awaits; the bin's `.catch(handleError)` needed no change.

- The CLI README called its sample block the "complete output" when the
  error envelope follows it on every non-zero exit. Now scoped to "the
  complete report", with the envelope named and linked.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 03:26:39 -04:00
cliffhall
488106f235 fix: scan only subschema positions, await stderr, show the whole report
Copilot review round 6.

- Share one traversal between `walk` and `declaresAnyId`. The `$id` guard
  added last round descended through EVERY object value, including
  instance data — `examples: [{"$id": "x"}]`, a `default`, a `const` —
  where `$id` is a payload key declaring no embedded resource. Reading
  one there suppressed `remote-ref` for the whole document, turning last
  round's false-positive fix into a blanket false negative. Both passes
  now go through `forEachSubschema`, driven by the same keyword tables,
  so they cannot drift about what counts as a schema position.

- Await the stderr writes. `writeSchemaLintReport` used a bare
  `process.stderr.write`, but both CLI exit paths call `process.exit()`
  as soon as the work returns, which discards anything still buffered on
  a piped stderr — truncating or losing the multi-block `--strict`
  report on exactly the redirected-output runs a CI caller uses. Added
  `awaitableError` beside the existing `awaitableLog` and awaited it.
  The test's fake defers its callback so a synchronous one cannot make
  the assertion vacuous; two existing stderr stubs that never invoked
  their callbacks were fixed in the same pass.

- Show the CLI README's sample report in full. It printed one error
  block immediately followed by the summary, a shape the formatter
  cannot produce — every finding gets a block. Captured from a real run.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 03:10:37 -04:00
cliffhall
68c4abf37a fix: count severities correctly, gate remote-ref on $id, order --strict checks
Copilot review round 5.

- The sidebar tooltip applied `hasError` to the TOTAL, so a tool with one
  error and three warnings announced as "4 schema portability errors" —
  a defect the previous round introduced while adding that wording, and
  worse than the vague text it replaced. Both the tooltip and the
  accessible label now carry the breakdown, formatted by a new shared
  `summarizeToolFindings` so the fourth place to phrase a severity count
  cannot drift from the other three.

- Suppress `remote-ref` when the document declares an `$id` anywhere.
  `$id` establishes a base URI, so with a root `$id` of
  `https://example.com/root` the ref `https://example.com/root#/$defs/x`
  resolves to THIS document and needs no fetch — the finding and its
  "inline the referenced schema" remediation would both be wrong.
  Classifying correctly needs full RFC 3986 resolution against nested
  embedded resources, which this module does not do, so it declines
  rather than guessing. A missed finding is the acceptable direction.

- Run the `--strict` validations before every short-circuit return.
  `servers/list`, `servers/show`, `--list-stored-auth` and
  `--print-handoff` all return from `parseArgs` before any connect, so
  the checks further down let `--strict --method servers/list` succeed
  while silently ignoring a tools/list-only flag.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 02:54:21 -04:00
cliffhall
2cb23a8b21 fix: map the new exit code, keep add runnable, distinguish severity by shape
Copilot review round 4.

- Add `SCHEMA_UNPORTABLE` to `codeForExit`. `CliExitCodeError` lets a
  caller omit the envelope, so without the case an envelope-less throw
  reported the generic `error` — the same silent mislabelling the rename
  was meant to prevent, one layer down. Covered via the envelope-less
  construction that exposed it.

- Keep a local `type` (and the preset's `required`) alongside the remote
  `$ref` in the showcase config. The TUI's `schemaToForm` dispatches on
  `type`, so a `$ref`-only property fell through to a string field that
  `add`'s numeric handler then rejected — making the README's "every
  showcase tool is runnable" claim false there. The `remote-ref` finding
  is unaffected, since that rule reads `$ref` independently.

- Restrict `type-union` to well-formed unions: non-empty, unique, and
  all recognized JSON Schema type names. Its message asserts the
  construct is *legal* JSON Schema, which is false for `[]`, `[3]` or
  `["bananas"]`, and the `anyOf` it suggested for those would be invalid
  too. Malformed schemas stay the SDK parser's business.

- Drop `if`/`then`/`else` from the presence-only allowlist. They only
  constrain as a pair, so `{"if": {"const": 1}}` accepts every value and
  was evading `untyped-schema`; the pairing is now checked explicitly.

- Distinguish the web sidebar severities by SHAPE, not just colour — a
  circle for an error, a triangle for a warning — and name the severity
  in the tooltip. Colour alone left a colour-blind reader unable to tell
  them apart.

- Fix the stale "across 2 tools" count in the CLI README's hint sample.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 02:37:10 -04:00
cliffhall
a3d864ed6e fix: rename the strict exit code, cover the config path, refresh the docs
Copilot review round 3.

- Rename the `--strict` failure from "invalid" to "unportable"
  (`EXIT_CODES.SCHEMA_UNPORTABLE`, envelope `schema_unportable`, and the
  message text). The module argues at length that these schemas ARE
  valid JSON Schema and are merely refused by some clients, so a
  machine-readable code of `schema_invalid` told automated callers the
  opposite. Done now, while nothing depends on it.

- Add a fixture-path integration case. Every other test built a
  `ServerConfig` by hand, so `resolveConfig`'s `rawToolSchemas`
  forwarding was uncovered and `unportable-schemas-http.json` was loaded
  by nothing — the shipped fixture could have lost its overrides with
  the suite still green. It now goes through loadConfig/resolveConfig
  and asserts the exact per-tool verdict the README claims.

- Refresh the CLI README's sample output, which still showed the
  pre-round-2 wording and fixture, and so dropped the contract warning
  that rewording existed to add. Captured from a real run rather than
  written by hand, plus a paragraph making the suggestion pattern
  explicit.

- Drop the self-referential "[Try it](#unportable-tool-schemas)" link in
  the root README, which pointed back at its own section.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 02:17:58 -04:00
cliffhall
cac97c142c fix: drop the unreachable root rule, correct the always-false suggestion
Copilot review round 2.

- Remove `non-object-root` entirely. It could never fire: the SDK types
  `inputSchema` with `type: literal("object")`, so a tool with any other
  root fails `ListToolsResultSchema` and `salvageListItems` drops it
  before any client sees it. Verified against a live server advertising
  `inputSchema: {type: "array"}` — `listAllTools()` returns []. A rule
  that cannot fire is worse than none, because the docs then claim a
  check the tool does not perform; the condition is already reported
  through the malformed-items surface. Pinned by an integration test so
  a change in that behavior is a signal rather than a silent gap.

- Fix the bare-`false` suggestion. `properties: {a: false}` forbids the
  property; deleting the entry *permits* it with any value under the
  default `additionalProperties`, so the advice inverted the schema it
  replaced. Now recommends `{"not": {}}` and says why deletion differs.

- Exempt `not`-parented schemas from `untyped-schema`, so the `{"not":
  {}}` above does not trip this module's own rule — under negation an
  always-accepting subschema means always-reject, making "accepts any
  value" the exact opposite of what it does. Scoped to that position,
  not inherited by its subtree.

- Say plainly, in the `true` and untyped suggestions, that they narrow
  the schema deliberately rather than implying an equivalent rewrite.
  `true` has no portable object-form equivalent — `{}` is the very shape
  this lint flags.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 02:02:26 -04:00
cliffhall
c389565783 fix: address Copilot review on the schema portability lint
- Scope `non-object-root` to `inputSchema`. The pinned SDK types
  `inputSchema` with `type: literal("object")` but `outputSchema` as a
  bare `looseObject`, so a `{"type":"string"}` output is conforming; the
  rule was claiming a requirement MCP does not make, at error severity.

- Decide `untyped-schema` from an allowlist of constraining keywords
  rather than a denylist of annotations. JSON Schema ignores keywords it
  does not recognize, so `{"vendorHint": true}` accepts every value and a
  denylist passed it as constrained. `$defs`-only schemas now flag too.

- Walk `dependentSchemas` and draft-07 `dependencies`, with a test
  pinning that the property-name-array form is not a schema position.

- Suggest `anyOf` branches for an array-form `type`, never "drop it from
  `required`" — accepting `null` and permitting absence are independent
  contracts, so the old suggestion silently changed the schema's meaning.

- Reject `--strict` alongside `--app-info`. That path returns NDJSON from
  `runMethod` and never reaches the lint, so the flag was a no-op gate
  that could never fail.

- Colour the web sidebar flag from the `--inspector-*` severity tokens,
  matching the detail panel and avoiding the default yellow that failed
  the a11y check.

- Add a live integration test for `rawToolSchemas`. It caught that an
  `outputSchema` override on a preset returning no structured content
  makes every call to that tool fail client-side validation — the
  showcase config did exactly that, so the flagged tool could not be
  run. Moved the bare `true` onto `get_temp`, documented the caveat, and
  pinned both halves.

- Drop the double cast from the lint test fixture.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 01:41:12 -04:00
cliffhall
2f9e0901c1 feat: flag unportable tool schemas in all three clients
Closes #1005

A tool schema can be perfectly legal JSON Schema and still be rejected by
the client the server is meant to run against — Go's `jsonschema` emits a
bare `true` for `interface{}`, which the SDK accepts and Claude Code
refuses with an opaque "Invalid input". The Inspector passed it through
silently.

Adds `core/json/schemaLint.ts`, a portability lint over a tool's
inputSchema/outputSchema, and surfaces one shared verdict everywhere:
the CLI's `--strict` report (exit 6 on an error-severity finding), the
TUI's tool list marker + detail pane, and the web Tools sidebar flag +
detail section.

Deliberately not a JSON Schema validator: a census of 617 public servers
found zero that fail the SDK's own parse, so a conformance check would
report nothing on real servers. Each rule is instead a construct that is
legal JSON Schema and known to be refused or mishandled by a shipping
client — a bare boolean in a schema position, an array-form `type`, a
remote `$ref`, a schema with no validation keyword, a non-object root.

`test-servers/configs/unportable-schemas-http.json` exercises every rule,
via a new `rawToolSchemas` override — the Zod-built presets cannot emit
any of these shapes, which is the same reason a real server only hits
this when its schemas come from another generator.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UL9retfvAXRgvi6EWk4SY4
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 01:18:53 -04:00
cliffhall
3be4230391 chore: pin esbuild past the GHSA-g7r4-m6w7-qqqr range in web/cli/tui
`npm audit` (dev included) reported a low-severity advisory against
`esbuild` in three of the four client installs. It is not in the
production tree — `npm audit --omit=dev` has been clean everywhere since
2058 — but a permanently non-clean audit trains people to skim the
channel, which is the same argument 2058 made.

`tsup@8.5.1` declares `esbuild: ^0.27.0`, and the advisory covers
0.27.3 - 0.28.0 with 0.27.7 the last 0.27.x, so there is no upward
escape inside tsup's declared range. `npm audit fix` "resolves" it by
silently downgrading to 0.27.2 across three installs — the trap hit and
reverted during 2058. An `overrides` entry forces the copy above the
range instead.

- Add `"overrides": { "esbuild": "^0.28.2" }` to clients/{web,cli,tui}.
  That also covers the tui's `tsx` copy (0.28.0), so no separate update
  is needed.
- Re-resolve each lockfile. Every changed entry is an esbuild one: the
  nested `tsup/node_modules/esbuild` and `tsx/node_modules/esbuild`
  copies collapse into the single deduped 0.28.2, and no other package
  moves.
- Document the pin in AGENTS.md, including when to drop it.

The real gate here is the build, not the audit: this puts tsup on an
esbuild major it does not declare. `npm run build` succeeds for all
three clients, and `npm run ci` passes.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-24 20:26:43 -04:00
cliffhall
7da20dcfd0 fix(cli): apply a server's persisted mcp.json metadata
The web client and the TUI both read `savedSettings.metadata` and pass it
as `InspectorClientOptions.defaultMetadata`. The CLI never did, and
`InspectorClient` only reads the option rather than falling back to
`serverSettings.metadata` — so a per-server `metadata` entry was silently
inert for `--cli` runs.

Pass it beside the existing `roots:`, guarded on a non-empty map the same
way web and the TUI guard theirs, so `{}` still means "no defaults".
Precedence is unchanged: call-time keys override defaults in `mergeMeta`,
so `--metadata` stays per-invocation and wins on a key collision.

Covered by three catalog-driven tests asserting against the test server's
recorded wire requests. `createTestConfig` is retyped `StoredMCPServer` —
the accurate on-disk shape — since a fixture that cannot express the
per-server keys cannot cover the settings that reach the client.

Closes #2093

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-24 19:32:23 -04:00
cliffhall
fafc8367b8
fix(web): move the app origin off 6276, bound the publish route
Copilot review round 2 on #2100, plus a collision the review did not find.

The default app-origin port was 6276 — which is already
RUNNER_OAUTH_CALLBACK_DEFAULT_PORT, the CLI/TUI loopback OAuth callback.
That port is fixed precisely so an OAuth app can pre-register
http://127.0.0.1:6276/oauth/callback, which makes it the one listener here
that cannot move when something takes it first. A running --web would hold
it and break a later --cli/--tui OAuth flow at its registered redirect URI,
and docs/mcp-app-review.md has those two running side by side. This
listener has a documented dynamic fallback, so this listener yields: the
default is now 6278 (6277 skipped — v1's retired proxy port, which the
migration guide tells people to stop forwarding). A test asserts the two
defaults stay distinct.

Review comments:

- POST /api/app-document now applies hono's bodyLimit BEFORE parsing. The
  8MiB check ran after c.req.json() had buffered and parsed the whole
  request, and bounded only `html` — so bulk in `csp`, or in keys the route
  never reads, was fully materialized before the 413.
- `csp` is validated as an HTTP header value and length-bounded. The
  controller hands it to res.writeHead() verbatim, where Node throws
  ERR_INVALID_CHAR synchronously — inside the handler for a later,
  unrelated request, outside this route's error handling.
- The app-origin port now propagates everywhere the other two do: the CLI
  --print-handoff port-forward command (and its test), the Dockerfile's ENV
  and EXPOSE, and the remote-review SSH recipe in docs/mcp-app-review.md.
  Without it an app declaring _meta.ui.domain is unreachable through every
  documented remote workflow.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-24 08:45:40 -04:00
cliffhall
531cf84e60 Merge branch 'v2/main' into v2/fix/2067-proxy-undici
One conflict, in `clients/tui/__tests__/App.test.tsx`: both sides added an
`opts` capture to the test harness's `FakeClient` for different fields —
`defaultMetadata` on v2/main (#1910), `environment.fetch` here (#2067) — so the
resolution is the union of the two, keeping both rationales and both tests.

Everything else auto-merged. `npm run ci` passes on the result.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 23:34:07 -04:00
cliffhall
e31a20eec7 test(proxy): isolate proxy env per file; word the guard failure by candidate source
Addresses review round 7 on #2099 (three suppressed comments).

- Proxy variables are now cleared for the WHOLE of `transport.test.ts` and
  `cli.test.ts`, not just around the proxy tests. Measured: undici's
  `EnvHttpProxyAgent` captures its proxy URLs when it is CONSTRUCTED and re-reads
  only NO_PROXY per request, so with the process-wide memo, any earlier test that
  connects on a machine with an ambient proxy would pin the agent to it and a
  later test setting HTTP_PROXY would be talking to an agent that is not
  listening. Clearing up front means nothing can build the singleton before the
  proxy tests do, and restoring only in the file-level afterAll means the memo
  cannot be left bound to a closed test proxy.

  Both suites verified green under a hostile ambient env
  (`HTTP_PROXY`/`http_proxy`/`HTTPS_PROXY` pointed at a dead port). In fairness
  this is hardening rather than a fixed failure: the concrete cross-test break
  did not reproduce with the current test order — but it depends on test order
  and on the developer's environment, which is exactly what this removes.

- The guard's failure message said a package "is declared external but was
  inlined" even for a candidate that came only from the root dependencies —
  i.e. #2067's own shape, where the missing `external` entry IS the bug, so the
  message contradicted the config it was asking the reader to check. It now
  words the failure by candidate source, and says to add the entry.

The capture-at-construction behavior is documented on `createProxyFetch`, since
it is the reason the suites are structured this way.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JTHVxSu8AUgHRLvo1ntZ8H
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 23:00:28 -04:00
cliffhall
91e08067dc test(proxy): cover the CLI and TUI bottom-of-stack wiring
Addresses review round 5 on #2099 (three suppressed comments, no posted ones).

The `fetch: createProxyFetch()` line in each Node client is the whole of that
client's proxy support — it is what puts the proxy at the BOTTOM of the fetch
stack, where InspectorClient's wrappers compose over it rather than discarding
it. `InspectorClient` sets `fetchFn` unconditionally, so the transport-level
fallback never fires for these clients. Both lines could have been deleted with
every existing test still green.

- CLI: a test that runs a real `tools/list` against a real HTTP test server with
  HTTP_PROXY pointed at a real forwarding proxy, asserting the request traversed
  it. Behavioral rather than structural on purpose — the defect this replaces was
  a runtime dispatch failure no structural assertion would have caught. It clears
  all six proxy vars first so an ambient value cannot route it elsewhere.

- TUI: the mock added earlier always returned undefined, so the proxy branch was
  never exercised. `createProxyFetch`'s return is now controllable, and two tests
  assert the sentinel reaches `environment.fetch` when a proxy is configured and
  that the slot stays unset when one is not.

Both were confirmed to fail with their client's wiring line removed.

Also updates the `InspectorClientEnvironment.fetch` doc in core/mcp/types.ts,
which still told callers that Node leaves this undefined and uses the global
fetch.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JTHVxSu8AUgHRLvo1ntZ8H
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 22:32:27 -04:00
cliffhall
96f96aad41 fix(proxy): preserve fetch semantics through the proxy adapter
Addresses review round 4 on #2099 — three posted comments and three suppressed
ones, all valid.

- A rebuilt Response reported `url: ""`, `redirected: false`, and
  `type: "default"` even after undici followed a redirect: a fetch-contract
  regression visible only to proxy users, and one `core/auth/endpointOverrides.ts`
  explicitly guards against by declining to rebuild at all. This adapter has no
  such choice — the response arrives from the wrong realm — so it now reinstates
  the three with `defineProperty`.

- Normalizing a `Request` input dropped every option the Request itself carried
  beyond method/headers/body/signal. Most visibly `redirect`: a
  `new Request(url, { redirect: "manual" })` started following redirects instead
  of surfacing them. All of them are now carried through, with an explicit
  `init` still winning per the fetch contract.

  Both are covered by tests driving a real redirect through a real proxy, and
  both were confirmed to fail without the fix.

- `@modelcontextprotocol/ext-apps` was added only to the CLI's `external` list.
  AGENTS.md requires every root-declared runtime dependency in all three, since
  which client reaches it is a function of what `core/` imports rather than of
  the client's own code. Added to the web runner and TUI lists too.

- The `BUNDLED_CLIENTS` test compared the hard-coded list against a hard-coded
  copy of itself, so a new tsup-bundled client would have left it green while
  going unchecked. It now discovers clients from disk (a client is tsup-bundled
  iff it ships a tsup config) and compares. Verified it fails when a stub client
  is added.

- AGENTS.md's project tree still described `core/mcp/node/` as only the stdio
  transport factory; it now carries `proxyFetch.ts` and its role.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JTHVxSu8AUgHRLvo1ntZ8H
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 22:18:43 -04:00
cliffhall
dbe95e58ed fix(guard): derive must-not-bundle candidates independently of external
Addresses the suppressed review comment on #2099, which was the sharpest of the
three rounds: the guard stopped looking at a package the moment its `external`
entry was removed — so deleting `"undici"` from the web config would have made
the pre-fix bundle pass. That is self-referential, and #2067 was precisely a
MISSING declaration, so the guard covered its regression but not the bug.

Candidates are now the union of two independently-derived lists: each client's
`external` array, and the root manifest's `dependencies` — root-declared by
rule, reached through `core/`, and required to be external in every client
bundle. Removing a package from an `external` list can no longer remove it from
scrutiny.

That immediately surfaced one latent instance of the same rule violation:
`@modelcontextprotocol/ext-apps` is root-declared and reached through
`core/mcp/apps.ts`, but was absent from the CLI's `external` list and was being
inlined into `index.js` — dragging the transitive v1 SDK and zod-to-json-schema
in with it. It is ESM, so it was not failing the way `undici` did; what it
violated was the rule. Adding it drops the CLI bundle from 590KB to 518KB.

It is also a real example of the shape the previous revision could not see: it
was inlined into the entry, emitting no `<pkg>-HASH.js` chunk at all.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JTHVxSu8AUgHRLvo1ntZ8H
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 22:02:54 -04:00
cliffhall
d90a955164 fix(proxy): route through undici's own fetch and keep undici external
Corporate-proxy users could not connect to any remote MCP server from v2.
Two independent defects, both reported in #2067.

1. The web and TUI bundles inlined undici. It was declared in the root and
   `clients/cli` manifests but named in no client's tsup `external` list, and
   tsup auto-externalizes only what the *nearest* manifest declares — so
   esbuild inlined 1.05MB of it into `clients/{web,tui}/build/`. undici is
   CommonJS, so the emitted chunk's `require("assert")` hit esbuild's ESM
   `__require` shim and threw `Dynamic require of "assert" is not supported`.
   The rejected `import()` surfaced as "the `undici` package is not available",
   telling users to install a package that was already present — and could not
   have helped, because the specifier had been rewritten to a relative chunk at
   build time.

2. `withProxyDispatcher` injected a *userland* undici `EnvHttpProxyAgent` into
   Node's *built-in* fetch. That couples two different copies of undici at the
   dispatcher handler interface, which is not stable across majors: Node 22
   embeds undici 6, Node 24 embeds 7, Node 26 embeds 8. A userland undici 8
   agent handed a built-in undici 7 handler is rejected with
   `fetch failed: invalid onRequestStart method`, and the request never leaves
   the process. So fixing the bundling alone would only have converted the
   web/TUI failure into the CLI's.

Both halves of the pair now come from userland undici — its `fetch` and its
`EnvHttpProxyAgent` — which keeps the handler inside one copy and works
unchanged from the Node 22.19 engine floor through Node 26. Deleting the
wrapper in favor of Node's native `NODE_USE_ENV_PROXY` was not an option:
measured, it is unsupported on 22.19 (the floor) and only lands mid-22.x.

Because undici's `Response` is a different class from `globalThis.Response`,
the proxied fetch re-wraps each response as a genuine global `Response`,
streaming preserved. Without that, `res instanceof Response` is false for
callers that test it — including the SDK's OAuth error formatter, which would
degrade every message to `Raw body: [object Response]`.

The proxy now sits at the bottom of the fetch stack (`environment.fetch` for
the Node clients, and the `createTransportNode` default for the web backend,
its one caller that supplies no `fetchFn`) rather than wrapping the transport's
fetch. Proxying means *substituting* the fetch, not decorating one, so wrapping
a supplied `fetchFn` would discard it; installing it underneath lets
InspectorClient's own wrappers compose over it. A side effect worth having:
OAuth discovery and token requests go through `environment.fetch` too, and were
never proxied before.

Guarding it:

- `undici` is added to all three tsup `external` lists and removed from
  `clients/cli/package.json`, so it is root-declared only, per the placement
  rule in AGENTS.md. The two installs had already drifted (root 8.5.0 vs cli
  8.9.0).
- New `npm run verify:bundle-externals` fails if any package a client declares
  external was inlined into that client's bundle anyway. It reads the *built
  output*, not the config — those two disagreed for four releases — and derives
  what to check from each client's own `external` array, so a newly
  externalized package is covered without editing the guard. Verified against
  the real pre-fix artifact, which it flags.
- The proxy tests now drive a real forwarding proxy rather than a mock. That
  matters: defect 2 was a runtime interface mismatch, which no mock can catch
  because no mock ever dispatches.

AGENTS.md's must-not-bundle rule (added by #2082) is extended with why undici
slipped past it, and notes the `node -e` trap — probing the bundled chunk with
`node -e` falsely succeeds, because it exposes a global `require` that
satisfies esbuild's guard.

Closes #2067

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JTHVxSu8AUgHRLvo1ntZ8H
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 21:12:16 -04:00
cliffhall
56d8644032 fix: stop leaking metadata values into diagnostics, and salvage per key
Two credential leaks, the same class already fixed for the client logger:
`serverList` printed the malformed entry verbatim — a legacy row missing `key`
still holds whatever the user configured — and the CLI overflow error echoed
the whole `key=value` pair into stderr and CI logs. Both now name the key and
the offending *type*; a test plants a `sk-live-…` and asserts it appears
nowhere while the key still does.

`normalizeStoredMetadata` now also drops a value that parses but cannot be
sent. A hand-edited catalog is the reachable source: it is parsed server-side,
so `1e400` really does become `Infinity` there, and the next write would store
`null`. Filtered per key, matching the per-item salvage this file already does
elsewhere, so one bad value does not cost the user the rest.

Deliberately *not* added to the `/api/servers` guard, which review also
suggested. Writing that test is what showed why: a client's own
`JSON.stringify` turns `Infinity` into `null` before the request is sent, so
the wire cannot carry the bad case at all — and the check made things worse,
rejecting the whole metadata field where the normalizer drops one key. The
guard stays a container check, with a comment recording both points.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 20:03:37 -04:00
cliffhall
7f5992081e fix: reject non-finite numbers before they reach _meta
`StrictJsonValue` removed `undefined`, but the type cannot express the rest of
the gap: TypeScript has one `number`, and JSON has no encoding for `NaN` or
`±Infinity`, so `JSON.stringify` rewrites them to `null`.

This is reachable from ordinary input, not a careless caller.
`JSON.parse('{"a":1e400}')` returns `Infinity` on overflow — so text a user
types parses cleanly, satisfies the type, and reaches the server as `null`
while the editor still shows `1e400`.

`isSerializableJson` in `core/json` is the runtime half of `StrictJsonValue`,
applied at both boundaries that turn text into metadata:

- the editor's draft parser, which now reports "Numbers must be finite" inline
  and withholds the value rather than emitting one it cannot send;
- the CLI's `--metadata` / `--tool-metadata` parser, which throws. Silently
  sending `null` would be wrong, and so would falling back to the literal
  string — neither is what was asked for.

Tests cover the validator directly (including that `JSON.stringify` really does
write `null`, which is the reason it matters), the editor parser, and the CLI
flag.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 19:43:39 -04:00
Cliff Hall
06c7334b24
Merge branch 'v2/main' into v2/feat/1910-complex-request-metadata 2026-08-23 18:55:24 -04:00
cliffhall
616dd9c196 fix: exclude undefined from _meta values, and cover the JSON worker
- `JsonValue` admits `undefined`, so `RequestMetadata` accepted values that do
  not survive serialization: `JSON.stringify` drops an `undefined` object
  member and rewrites an `undefined` array element to `null`. The type
  contradicted the one promise this payload makes. Added `StrictJsonValue` /
  `StrictJsonObject` and used them for the metadata path.

  Deliberately not a change to the repo-wide `JsonValue`: for tool *arguments*
  `undefined` legitimately means "not supplied". The narrowing is sound
  wherever it lands here, since every one of these values comes from
  `JSON.parse`, which cannot produce `undefined`. The CLI's `parseKeyValuePair`
  needed the same tightening — caught by `clients/cli`'s typecheck, which the
  web `tsc -b` does not cover.

- Nothing asserted the JSON worker's annotations, and the wrapper's own "Not
  valid JSON" message comes from our parser rather than from Ace — so a broken
  worker URL would have left every test passing while the gutter diagnostics
  silently disappeared. Added a Storybook play function that waits for a real
  `session.getAnnotations()` error entry, and verified it fails when the worker
  module URL is pointed at a bad path.

- `aria-describedby` referenced only the error, so a supplied `description` was
  never announced and would have been dropped entirely once the draft went
  invalid. Both ids are referenced now, with the description surviving the
  error.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 18:27:28 -04:00
cliffhall
85e4a29990 fix: redact secrets nested inside metadata in servers/show
The redaction checked only top-level keys. That was sufficient while values
were strings — a secret could not hide beneath one — but #1910 lets a value be
an object, so `{ trace: { accessToken: "…" } }` printed in full: `trace` is not
sensitive, so the whole subtree went out with it. `servers/show` output is
meant to be safe to paste into an issue, so this is a regression this PR
introduced rather than a pre-existing gap.

`redactMetadataValue` walks the payload: a key matching `isSensitiveHeader`
replaces its entire value (so a sensitive key holding an object cannot leak
through its members either), anything else is descended into, and arrays are
mapped elementwise since objects inside them can carry sensitive keys.
Recursion is bounded — the payload came from `JSON.parse`, so it is a finite
tree with no cycles.

Tests cover a secret two levels under a non-sensitive key and one inside an
array element.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 14:03:40 -04:00
cliffhall
b33532c024 feat: allow complex JSON values in request _meta
Closes #1910

`_meta` was typed `Record<string, string>` end to end in the Inspector —
on disk as a `{ key, value }[]` pair array, in the Server Settings form as
key/value rows, and in every request verb's per-call metadata parameter.
Nothing in the MCP spec restricts a `_meta` value to a string, and the SDK
models the field as a `z.looseObject`, so the restriction was ours alone.

Widen the whole path to `RequestMetadata` (`Record<string, JsonValue>`):

- Per-server default metadata is a JSON **object** on disk and in memory.
  The pre-#1910 pair array is still read (`normalizeStoredMetadata`) so an
  existing `mcp.json` keeps working; it is never written back, so a save
  migrates the entry.
- The Server Settings → Request Metadata section is a JSON editor
  (`JsonObjectInput`) instead of key/value rows — rows cannot express an
  object value. It keeps the typed text as the display source and emits
  only parsed JSON, the same draft split `SchemaJsonField` uses, so the box
  stays typeable; invalid text is flagged inline and not applied.
- The CLI stops flattening `--metadata` / `--tool-metadata` through
  `metaValueToString`. Those values were already JSON-parsed, so
  `trace={"id":"abc"}` used to reach the wire as the *string* `{"id":"abc"}`
  and now reaches it as an object.
- `servers/show` redaction replaces a sensitive key's whole value rather
  than a string, so a structured value cannot leak through its members.
- `progressTokenOf` narrows the reserved `progressToken` key back to
  `string | number` before it reaches the SDK; any other JSON still travels
  inside `_meta` but wires up no progress callback.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177mPHAdECD18nLLCTwR5rh
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 12:23:40 -04:00
cliffhall
b35db18fe8 Merge remote-tracking branch 'origin/v2/main' into v2/feat/2082-file-secret-store-lock 2026-08-23 11:56:05 -04:00
cliffhall
99a194ca69 chore(lint): fail lint on warnings (--max-warnings 0)
`lint` failed only on errors, so a warn-level rule was a channel nothing
consumed. `react-hooks/exhaustive-deps` reported two stale-closure
`useCallback` deps in App.tsx on every run, `npm run ci` passed anyway,
and the defect was caught only by a review round on #2076.

Add `--max-warnings 0` to all six lint scopes — each of
clients/{web,cli,tui,launcher}'s `eslint .`, plus the root's `lint:core`
and `lint:shared` — so a warning fails `lint`, and therefore `validate`
and `ci`. All six were already warning-free, so no suppressions, rule
downgrades, or ignore-list widening were needed.

Also promote `react-hooks/exhaustive-deps` to `error` in both React
scopes (web, tui). The flag makes severity irrelevant to the gate; it
does not make it read correctly in an editor.

Document the invariant in AGENTS.md as a new "Lint has no warning tier"
section, note it in the README beside the type-aware-linting paragraph,
and mirror it into .github/copilot-instructions.md.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 10:47:29 -04:00
cliffhall
04dbc36544 feat(auth): give the secrets file a real cross-process lock (#2082)
#1950 shipped FileSecretStore without cross-process mutual exclusion, by
decision: an earlier revision hand-rolled a `mkdir` election with an owner
stamp, a heartbeat and a stale-takeover, and three consecutive review rounds
found a real race in it. The last one is not closable with what Node exposes
— claiming a stale lock atomically needs compare-and-swap on a directory
entry (`renameat2(RENAME_EXCHANGE)`) — so it was replaced with optimistic
verify-and-retry and the residual documented.

#2082 settles that as "borrow, don't hand-roll". `proper-lockfile` is what
npm itself locks with, and stale-takeover is precisely the problem it has
already solved: it re-stats the lock directory after claiming it and gives
the lock up when the mtime is not the one it wrote, so the loser of a
takeover race releases instead of proceeding.

- core/auth/node/file-lock.ts: `withSecretFileLock`. `realpath: false` so a
  file can be locked into existence (the very first `set` has no
  `secrets.json`, and the library's default resolves through `fs.realpath`);
  a warning in place of the library's `onCompromised`, which throws from a
  timer and would take the session down; and a degrade-with-one-warning path
  rather than a throw when no lock can be taken — this store exists for boxes
  missing the usual mechanism (#1848, #1905) and must not gain a new way to
  be unavailable.
- FileSecretStore.mutate holds it across the whole read-modify-write. The
  optimistic verify stays underneath and is not redundant: a lock is advisory
  between the processes that take it, so the verify covers a writer outside
  this codebase and covers the degrade path. The in-process queue stays too,
  and gains a second job — proper-lockfile is not reentrant, so serializing
  per path keeps ELOCKED meaning "another process".
- absorbFileSecretsIntoKeyring takes the same lock around orphan adoption and
  the atomic claim, behind a lock-free `readdir` fast path so the common
  startup (keychain available, no file ever written) neither creates a lock
  directory nor warns about one it could not create.

proper-lockfile is a root `dependency` per the placement rule, and is named
in all three bundler `external` lists: tsup externalizes what the *client's*
manifest declares, so a root-only CJS package was being inlined into the ESM
bundles, leaving esbuild's `Dynamic require of "path" is not supported` shim
that killed `--cli` at import time. That rule was undocumented; it is now in
AGENTS.md beside the placement rule that creates it, and mirrored into
.github/copilot-instructions.md.

Tests: 7 new in file-lock.test.ts driving a real second process (the existing
suite structurally cannot — `serialize` orders in-process callers before the
lock sees them), plus two for the migration fast path.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JTHVxSu8AUgHRLvo1ntZ8H
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-23 09:32:41 -04:00
cliffhall
180b397aec chore(deps): bump nanoid to 3.3.18 to clear the high-severity advisory
`npm audit --omit=dev` reported one high-severity finding in the
production tree, on both `main` and `v2/main`:

  nanoid <3.3.18 — GHSA-2v37-7h3g-55p8
  custom generators can loop indefinitely when size is zero

It arrives transitively, via vite -> postcss -> nanoid. `postcss`
depends on `nanoid@^3.3.11`, so the fix is an in-range lockfile bump in
all five installs — no package.json changed. `npm audit --omit=dev` is
now clean at the root and in each of the four client installs.

Applied as a targeted `npm update nanoid` per install rather than
`npm audit fix`. The latter reaches the same clean audit but re-resolves
the whole tree, and here dragged in an unrelated esbuild downgrade
(0.27.7 -> 0.27.2) across web/cli/tui — roughly 700 lines of lockfile
noise for a one-package security patch.

The issue also asked whether `vite` belongs in root `dependencies`,
since that placement is why this advisory appears under `--omit=dev` at
all. It does, and deliberately: `start-vite-dev-server.ts` imports
`vite` and `@vitejs/plugin-react` at runtime for `--web --dev`, and
`tsup.runner.config.ts` lists both as `external`, so a published install
resolves them from the root manifest. Moving them to `devDependencies`
would break `--web --dev` for consumers while passing every local check.
Left in place, with the reasoning recorded in the README's
dependency-placement paragraph so it need not be re-derived.

Verified: `npm audit --omit=dev` reports 0 vulnerabilities in all five
installs; `npm run ci` passes.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-18 23:12:10 -04:00
cliffhall
1edb4f78c7 chore(deps): sync the security fixes that landed on main
Dependabot security updates always target the default branch, so #1833,
#1840, #1913, #1925 and #2004 all landed on `main`. `main` is never merged
back into `v2/main`, so those fixes had no path to the develop branch and
every install off `v2/main` still resolved the vulnerable versions —
Dependabot will not re-raise them, since it considers them fixed on the
branch it watches.

Brings v2/main to parity: hono 4.12.25 -> 4.13.1, undici 8.5.0 -> 8.9.0,
body-parser 2.2.2 -> 2.3.0, ip-address 10.1.0 -> 10.5.0, fast-uri
3.1.0 -> 3.1.5, plus qs, type-is, express-rate-limit, hasown,
side-channel and es-object-atoms, across the root, web, cli and tui
installs. Two direct declarations move with them: cli undici ^8.9.0 and
web hono ^4.13.1.

The files are taken from the reconciled v2.3.0 milestone-merge tree, so
the root version stays 2.3.0 rather than regressing to main's 2.2.0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JTHVxSu8AUgHRLvo1ntZ8H
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-18 22:20:10 -04:00
Cliff Hall
405d0f4d0d
Merge pull request #2039 from modelcontextprotocol/v2/chore/1959-no-floating-promises
chore(lint): enable @typescript-eslint/no-floating-promises in all five ESLint scopes
2026-08-16 22:35:52 -04:00
cliffhall
519ecf49ee chore(lint): enable no-floating-promises in all five ESLint scopes
A floated promise is invisible at review time — the call reads like an
awaited one minus four characters — and the unhandled rejection it
produces surfaces in a different test, in a different file, as a stack
pointing at SDK internals. In #1947 two un-held `callTool` calls made
`npm run ci` unpassable and took a full investigation to attribute; the
fix was two lines. `@typescript-eslint/no-floating-promises` catches the
class outright, so enable it at `error` everywhere.

The rule is type-aware and `tseslint.configs.recommended` is not, so each
scope's config gains a parser project. The four clients name their own
tsconfig projects (both of them — `src` and `__tests__`/`server` live in
different ones). The root scope has no tsconfig at all, so add
`tsconfig.lint.json`: a lint-only project covering `core/**`,
`test-servers/src/**`, and `vitest.shared.mts`, emitting nothing and
gating nothing. It sets `moduleResolution: bundler` deliberately — under
NodeNext `core/`'s extensionless imports fail to resolve, every import
degrades to `any`, and the rule silently stops seeing promises at all.

Measured surface, and the fixes:

- core (2) — `stream.close()` in two Hono `onAbort` listeners. Hono
  invokes subscribers with a bare `subscriber()`, so a promise returned
  from the listener is floated one layer up; `closeAbortedStream` owns
  the rejection where it can actually be owned.
- tui (5) — `handleDisconnect` had no catch of its own and its only
  caller is a key handler that cannot await, so a failing disconnect was
  a live unhandled rejection; it now surfaces the message the way
  `handleConnect` does. The rest are `void` at callers that genuinely
  cannot await, over callees that already own their failures.
- web (92) — 83 are Storybook `expect(...)`, which is instrumented and
  returns a promise, now awaited (`scrollAreaStoryAssertions` is async
  for the same reason). Two tests were asserting against a provider call
  they never awaited. `open(url)` in both web servers now warns instead
  of escaping a synchronous callback.
- cli, launcher — already clean.

Type-aware linting costs time: `clients/web`'s `eslint .` goes from ~8s
to ~19s, inside `validate`. Narrowing the loaded projects is the lever if
that needs reducing later; dropping the rule is not.

Closes #1959

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 20:57:32 -04:00
olaservo
9f7895dcd9 fix: invoke the registered SIGINT listener directly in run-method.test instead of emitting a process-wide signal
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-12 08:57:35 -07:00
cliffhall
0a2b7f7179 Merge branch 'v2/main' into v2/docs/1822-migration-guide
Took v2/main's project-layout line and quality-gate table (adding
verify:dep-lockstep), keeping this branch's migration-guide mention and
prettier table alignment.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HDdo1rNRVQnVRRdsqSrvG3
2026-08-11 11:18:35 -04:00
Cliff Hall
59f5b6d25c
Merge pull request #1971 from modelcontextprotocol/v2/chore/root-only-mcp-sdk-deps
chore: declare the MCP SDK packages only at the repo root (#1970)
2026-08-11 11:12:02 -04:00
cliffhall
31c41d3ad6 chore: declare the MCP SDK packages only at the repo root (#1970)
The four v2 SDK packages (`client`, `core`, `server`, `server-legacy`) plus
`ext-apps` were declared in the root manifest *and* again in clients/web, cli,
and tui, so each client installed its own copy. Node resolution walks up and the
root install is on every client's chain — and the root manifest is already the
documented source of truth for what ships — so the per-client entries were
duplicates of a decision made at the root, and they had already drifted: before
this change the tree carried ext-apps 1.7.4 at the root and 1.7.5 under
clients/web, dragging in two copies of the v1 `@modelcontextprotocol/sdk`
(1.29.0 and 1.30.0) through ext-apps' peer dependency.

Nothing imports the v1 SDK; it is not in any manifest of ours, only a peer of
ext-apps, so consolidating ext-apps is the only lever over it. After a clean
install there is now exactly one copy of each, at the root. `npm update` then
moves ext-apps to 1.7.5 and its SDK peer to 1.30.0, whose widened
`@hono/node-server` range (`^1.19.9 || ^2.0.5`) also drops a nested duplicate of
that package.

`express` needed a real home to make this work. `test-servers/src` imports it,
but no manifest declared it: it was reaching `clients/cli/node_modules` only as
a peer of `express-rate-limit` under `@modelcontextprotocol/server-legacy`, so
removing that entry took express with it and every cli test that spawns a test
server failed to resolve it. It is now a root devDependency — test-servers is
root-owned code with no manifest of its own — and `vitest.shared.mts` resolves
it from the root, joining `yaml`, which was already the precedent for exactly
this case. The clients/web duplicate is dropped; its only reference is a
type-only import covered by `@types/express`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HDdo1rNRVQnVRRdsqSrvG3
2026-08-11 09:07:04 -04:00
cliffhall
6c33da38c9 chore(deps): align zod across installs and guard against version skew
Closes #1896

`clients/web`'s `tsc -b` exhausted the 4GB default heap at zod 4.4.x. The
cause is not a zod regression nor a pathological inference site of ours: it
is two copies of zod at *mismatched versions* inside one tsc program.

`clients/web/tsconfig.test.json` compiles `test-servers/src`, whose files
resolve zod (and the SDK's zod) from the **root** install, alongside web's
own sources, which resolve from `clients/web/node_modules`. At 4.3.6 vs
4.4.3 TypeScript must relate two structurally-distinct declarations of every
`@modelcontextprotocol/*` schema type, which is exponential over a recursive
generic surface — `TS2589 Type instantiation is excessively deep`, then OOM.

Bumping root zod to 4.4.3 and changing nothing else returns the build to
baseline: 11.4s and 2,567,882 instantiations, against 11.2s / 2,567,503 at
4.3.6. Two copies at the same version are harmless; skew is what explodes.

So drop the `~4.3.6` hold on `clients/web` and move all four manifests and
lockfiles to zod 4.4.3 together, and add `verify:dep-lockstep` to `validate`
to keep them there. The guard derives its candidate set from what `core/`
and `test-servers/src` import, compares the committed lockfiles' top-level
entries, and fails deny-by-default on any skew not in the annotated
`TOLERATED_SKEW` allowlist. It joins the existing mutual-vouch ring so
dropping it from `validate` is caught by `verify:format-coverage`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HDdo1rNRVQnVRRdsqSrvG3
2026-08-10 20:29:58 -04:00
cliffhall
2e89443739 docs: add the v1 → v2 migration guide
Closes #1822

Adds docs/v1-to-v2-migration.md — the map for users arriving from v1:

- CLI flag mapping (every v1 flag survives; lists what v2 adds)
- `--config` vs `--catalog` semantics with before/after examples
- Node engine bump (>=22.7.5 → >=22.19.0)
- what no longer ships (the three sub-packages; v2 is one tarball)
- the three behavior changes most likely to bite: exit code 5 on a
  failing tool call, target-must-come-first under --cli, and the
  reversed `--` separator
- env-var mapping (MCP_PROXY_AUTH_TOKEN → MCP_INSPECTOR_API_TOKEN,
  MCP_PROXY_FULL_ADDRESS removed, SERVER_PORT repurposed), the v1 UI
  config settings, web query params, and Docker

Linked from the root README (banner + docs list), the CLI README, and
docs/mcp-server-configuration.md; AGENTS.md's docs/ tree entry updated.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SW1p8E2uiyyLx4RKwrwSrt
2026-08-10 19:23:43 -04:00
Cliff Hall
834fd2d77d
chore(deps): migrate to eslint 10 to clear the brace-expansion DoS advisory (#1900)
* chore(deps): migrate to eslint 10 to clear the brace-expansion DoS advisory (#1838)

eslint 9 pulled `minimatch@3` → `brace-expansion@1.1.16`, which carries
GHSA-mh99-v99m-4gvg (high, DoS via unbounded expansion length). It appeared in
all five lockfiles — the root plus each of the four clients, none of which is an
npm workspace, so all five had to move together.

Deferred from the pre-2.0.0 sweep because it is dev-scope, not attacker-
controlled, and a major bump across five packages was the wrong thing to attempt
immediately before an irreversible publish. This is that work.

## What moved

- `eslint` `^9.39.4/5` → `^10.8.0` and `@eslint/js` → `^10.0.1`, in all five
  manifests.
- `eslint-plugin-react-hooks` `^7.0.1` → `^7.1.1` in web and tui. Required, not
  cosmetic: 7.0.1's peer range stops at `^9.0.0`, so installing it alongside
  eslint 10 fails `ERESOLVE`.
- Everything else already declared eslint 10 support and stayed put:
  `typescript-eslint@^8.56.1` (`^8.57 || ^9 || ^10`),
  `eslint-plugin-react-refresh@^0.5.2` (`^9 || ^10`),
  `eslint-plugin-storybook@^10.2.19` (`>=8`).

## Config migration

None was needed. All five configs were already flat (`eslint.config.js` with
`defineConfig`/`globalIgnores` from `eslint/config`), which is the format v10
keeps and the only one it still supports. The root config's `core/` and shared-
surface blocks — including the `_`-prefix `argsIgnorePattern` /
`varsIgnorePattern` / `caughtErrorsIgnorePattern` — are unchanged and still gate
`lint:core` and `lint:shared`.

No rule was disabled, downgraded, or scoped away to make the new eslint pass.
v10 surfaced 21 real violations across three rules; all 21 are fixed in the code.

### `preserve-caught-error` (new in `eslint:recommended`) — 15 sites

A `throw new Error(msg)` inside a `catch` silently drops the original error.
Each now passes `{ cause }`, so the underlying failure survives into the chain.
Messages are unchanged, so nothing that asserts on them moves. 12 in `core/`,
2 in `clients/cli`, 1 in `test-servers/src`.

### `no-useless-assignment` (new in `eslint:recommended`) — 2 sites

`clients/cli/src/cli.ts`'s `optionArgs` and `test-servers/src/test-server-oauth`
's `valid` were initialized and then unconditionally overwritten on every path.
Both are now declared without the dead initializer; TypeScript's definite-
assignment analysis covers the remaining paths.

### `react-hooks/set-state-in-effect` — 8 sites (web)

These were false negatives the plugin fixed in 7.1.0, not a rule we newly opted
into: `set-state-in-effect` has been `error` in `flat/recommended` since 7.0.1,
and the web config has always extended it. Every one was the same anti-pattern —
resetting or re-syncing local state from a prop inside a `useEffect`, which
paints the stale value for one frame and then renders again to correct it.

All eight now use a new `useValueChange(value, onChange)` hook
(`clients/web/src/hooks/useValueChange.ts`), which is React's documented
"adjusting state during render": compare against the previous render's value
with `Object.is` and call back *during* render, so React discards the
in-progress output before it reaches the DOM.

- `MrtrConversation`, `ProtocolEntry`, `TaskCard` — mirror `isListExpanded`.
- `NetworkEntry` — same mirror, plus the "Reveal in Network" force-open. The
  reveal's rAF scroll stays an effect (real external-system work); only the
  `setIsExpanded(true)` moved. `isExpanded` is now seeded from
  `isListExpanded || revealed`, since a render-time sync fires on change and so
  cannot cover an entry that mounts already revealed.
- `PromptArgumentsForm`, `ResourceTemplatePanel` — reset on template/prompt
  switch.
- `ServerConfigModal` — reset on open. Keyed on `opened ? initial : undefined`,
  which collapses "opened flipped" and "initial changed while open" into one
  value; `initial` is already memoized, so it cannot thrash.

`useValueChange` has its own test file, and `ServerConfigModal` gains an
open→edit→close→reopen test (the close leg was previously untested, which is
what left the new guard uncovered).

## Advisory delta

`npm audit`, per package, before → after:

| Package             | before                     | after                      |
| ------------------- | -------------------------- | -------------------------- |
| root                | 9 (1 low, 6 mod, 2 high)   | 8 (1 low, 6 mod, 1 high)   |
| `clients/web`       | 19 (3 low, 6 mod, 6 high, 4 crit) | 17 (3 low, 6 mod, 4 high, 4 crit) |
| `clients/cli`       | 6 (2 low, 4 high)          | 4 (2 low, 2 high)          |
| `clients/tui`       | 4 (1 low, 3 high)          | 2 (1 low, 1 high)          |
| `clients/launcher`  | 3 (3 high)                 | 1 (1 high)                 |

`brace-expansion` is gone from all five — `eslint@10` resolves `minimatch@10` →
`brace-expansion@5.0.9`. Dropping `@eslint/eslintrc` (removed in v10) also took
`js-yaml` with it, clearing GHSA-52cp-r559-cp3m (high) from all four clients as
a bonus. The remainder are unrelated and tracked separately.

`npm run ci` passes end to end — validate, the per-file ≥90 coverage gate, the
build gate, all five smokes (including `smoke:tui`, run locally on a real TTY),
and 462 Storybook tests.

Also documents the effect rule in AGENTS.md and mirrors it into
`.github/copilot-instructions.md`, since it is now something a reviewer cites.

Claude-Session: https://claude.ai/code/session_01YAt8rqxysNbhYWLhoRm3fU

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs: state useValueChange's referential-stability requirement (#1838)

Copilot review on #1900: the hook compares with `Object.is`, so an object or
array literal rebuilt in the component body compares unequal every render.
Because the callback is what updates state, that is not merely a wasted render —
it is an infinite loop.

Every current caller passes a primitive (`boolean`, `string`) or an already-
memoized value, so nothing changes behaviorally. But the hazard was implicit,
and the next caller is the one it would bite.

Documented on the hook itself, and one clause added to the AGENTS.md rule with
its mirror in `.github/copilot-instructions.md`. No runtime guard: the
requirement is the same one a `useEffect` dependency array carries, and here the
failure is loud and immediate rather than silent.

`npm run ci` passes.

Claude-Session: https://claude.ai/code/session_01YAt8rqxysNbhYWLhoRm3fU

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(cli): stop asserting the --tool-args-json catch binding is an Error (#1838)

Copilot review round 2 on #1900: the `--tool-args-json` parse handler formatted
its message with `(e as Error).message`. A `catch` binding is `unknown`, so that
cast is an assertion rather than a check — a thrown non-Error would render
`--tool-args-json is not valid JSON: undefined`, which points the user at
nothing.

`JSON.parse` does only throw `SyntaxError` today, so this is not a live bug. But
the cast is the kind AGENTS.md asks us not to leave unjustified, the same
handler was already being touched here to add `{ cause: e }`, and every other
site in this PR uses the guarded form. Now it does too.

`npm run ci` passes.

Claude-Session: https://claude.ai/code/session_01YAt8rqxysNbhYWLhoRm3fU

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs: require useValueChange's onChange to be render-pure (#1838)

Copilot review round 3 on #1900: `onChange` is called during render, so it is
bound by render-phase purity — and the web client mounts under `StrictMode`,
which deliberately double-renders in development. A callback doing anything
external would run an unpredictable number of times, and concurrent React can
abandon an in-progress render entirely.

Every current caller already passes a callback that only calls `setState`, so
nothing changes. But "runs during render" is the whole point of the hook and the
constraint that follows from it was left implicit.

Stated on the hook, with the same clause in the AGENTS.md rule and its
`.github/copilot-instructions.md` mirror. All three now point at `NetworkEntry`
as the worked example of the split: the reveal's force-open is a state update
and lives in `useValueChange`, while its `requestAnimationFrame` scroll stays a
`useEffect`.

`npm run ci` passes.

Claude-Session: https://claude.ai/code/session_01YAt8rqxysNbhYWLhoRm3fU

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-01 20:13:30 -04:00
Cliff Hall
23e0c39d11
chore(deps): untangle the vitest/Storybook exact-pin knot to clear GHSA-p63j-vcc4-9vmv (#1839) (#1899)
GHSA-p63j-vcc4-9vmv (**critical**) — `@vitest/browser` Browser Mode provider
commands accept a file path from the browser and act on it without checking the
`allowWrite` permission gate. Patched in 4.1.10; `clients/web` was pinned at
4.1.0.

Dev-scope only — `@vitest/*` is absent from the published `files` allowlist, and
Browser Mode here runs this project's own Storybook play functions, never a
third-party page. That is why #1837 deferred it rather than attempting a
toolchain upgrade immediately before an irreversible publish.

## The knot, and what actually unties it

`^4.1.0` already admits 4.1.10, so the declared ranges were never the problem.
The family is welded by *exact* peer pins — `vitest` pins
`@vitest/browser-playwright`, which pins `@vitest/browser` — so nothing moves
alone.

The issue predicted that an explicit coordinated `npm i -D` would fix it. It
does not. With `clients/web/package-lock.json` in place, npm ERESOLVEs even when
every member of the family plus the Storybook packages are named in one command
and `node_modules` is deleted first:

    Found: @storybook/addon-a11y@10.2.19
    Could not resolve dependency: dev @storybook/addon-a11y@"^10.5.5"
    Conflicting peer dependency: storybook@10.5.5

npm resolves against the existing lock tree and will not move the whole
constellation at once. **Regenerating `clients/web/package-lock.json` is the
only thing that unties it** — a clean resolve places all four at 4.1.10 with no
peer complaints at all.

## Versions

    vitest                       4.1.0    -> 4.1.10
    @vitest/browser              4.1.0    -> 4.1.10   (transitive)
    @vitest/browser-playwright   4.1.0    -> 4.1.10
    @vitest/coverage-v8          4.1.0    -> 4.1.10
    storybook + @storybook/*     10.2.19  -> 10.5.5
    eslint-plugin-storybook      10.2.19  -> 10.5.5
    @chromatic-com/storybook     5.0.1    -> 5.2.1

`clients/{cli,tui,launcher}` were already resolving 4.1.9 (no browser pins, so
they floated freely) and were never vulnerable. Their declared `^4.1.0` still
*permitted* 4.1.0 on a fresh resolve, so the floor is raised to `^4.1.10` in all
four manifests — same reasoning as the vite floor in #1841. Pinning only the
lockfile would have left a regression path open.

## The vite 8 peer override

Resolved, as a consequence rather than a workaround.
`@joshwooding/vite-plugin-react-docgen-typescript@0.6.4` declared
`peer vite@"^3 || ^4 || ^5 || ^6 || ^7"` against our vite 8. It is not a direct
dependency — it arrives through `@storybook/react-vite`, which at 10.5.5 depends
on `^0.7.0`, and 0.7.0 adds `^8.0.0` to that range. So taking Storybook 10.5.5
for the peer set drops the override too; nothing is forced.

## Two holds the regeneration forced, each with a tracked issue

Regenerating the lock floats every other in-range dependency to current. Most of
that is welcome — it is what takes `clients/web` from 19 advisories to 1 — but
two floats broke the gate and are unrelated to this security fix:

- **zod 4.3.6 -> 4.4.3** makes `clients/web`'s `tsc -b` die with
  `FATAL ERROR: Ineffective mark-compacts near heap limit` at the ~4GB default.
  Reverting zod alone makes it exit 0, so the attribution is unambiguous.
  Held at `~4.3.6`. See #1896.
- **eslint-plugin-react-hooks 7.0.1 -> 7.1.1** enables `set-state-in-effect`,
  which fails `lint` on 8 pre-existing violations across 7 components. Fixing
  them is a real refactor with interaction-behavior consequences, not a
  suppression. Held at `~7.0.1`. See #1897.

Both `~` pins are deliberate and temporary, and both issues say so — they are
constraints to remove, not preferences.

Storybook 10.5.5 also reports that `setProjectAnnotations` is applied
automatically since 10.3, making `.storybook/vitest.setup.ts` redundant. Left in
place: `./preview` carries the Mantine decorator and the a11y annotations drive
the play-function assertions, and if automatic provisioning missed either, the
462 stories would render unthemed with a11y checks inert and very likely still
pass. That silent-failure risk does not belong in a security bump. See #1898.

## Audit delta

`clients/web`, where the advisory lived:

    before   19 (4 critical, 6 high, 6 moderate, 3 low)
    after     1 (1 low — esbuild-in-tsup, Windows dev server only)

All four critical entries — `vitest`, `@vitest/browser`,
`@vitest/browser-playwright`, `@vitest/coverage-v8` — are gone. The other 14 are
transitive dev-tree advisories (hono, ws, js-yaml, flatted, brace-expansion, ...)
cleared as a side effect of the clean resolve. Elsewhere: cli 6 -> 5,
launcher 3 -> 2, tui 4 -> 4, root unchanged at 9 (its lock is untouched). Those
remainders are pre-existing and unrelated.

## Verification

`npm run ci` green end to end on the upgraded stack — the point of caring here,
since this *is* the test infrastructure:

- coverage gate (>=90 per file, all four dimensions) passes on all four clients;
  no file regressed, so no gate was lowered and no `v8 ignore` added
- 4802 web tests, 304 cli, 282 tui, 5 launcher
- 462 Storybook play functions across 109 files, on vitest 4.1.10 Browser Mode
- verify:build-gate, and all five smokes including `smoke:tui` (real TTY here)

Claude-Session: https://claude.ai/code/session_01YAt8rqxysNbhYWLhoRm3fU

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-01 19:50:57 -04:00
Cliff Hall
4d30d1cd1e
docs: restore the missing docs/ targets and split the catalog-seeding wording (#1811) (#1812)
Closes #1811

Four README links pointed at files that don't exist on `v2/main`, and the launcher README described catalog seeding as one behavior when it is two.

- `docs/mcp-server-configuration.md` — written fresh for v2 (the v1.5 file predates the `--catalog`/`--config` split)
- `docs/launcher-config-consolidation-plan.md` — restored from `v1.5/main`, path drift corrected, v2 notes appended
- `docs/images/tui-screenshot.png` — regenerated against the current TUI
- launcher README seeding wording — split into the two real behaviors (web seeds two sample servers; cli/tui seed empty)

Review across three rounds also corrected several claims verified against source: the `--` separator is inverted between web and cli, a cli target placed after a flag is silently discarded, `--server` is a no-op on web and an unknown-option error on tui, the `MCP_CATALOG_PATH` ad-hoc guard is cli-only, and the conflict matrix diverges on both `--header` and `--transport stdio`.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

https://claude.ai/code/session_01Txmv2qqv3yeKgRzoqXytzD
2026-07-27 20:37:14 -04:00
Cliff Hall
d9e4f444a2
test(cli,tui): typecheck the __tests__ dirs (#1791) (#1799)
* test(cli,tui): typecheck the __tests__ dirs (#1791)

The cli/tui `typecheck` scripts only checked `src` (the src-only tsconfig
excludes `**/*.test.*`), leaving the `__tests__` dirs — which do the most
`as` casting — with no tsc pass. Add a `tsconfig.test.json` per client that
includes `__tests__` with the test-exclusions dropped and the test-only path
aliases (`@modelcontextprotocol/inspector-test-server`, the `@inspector/core/*`
deep paths, express/vitest) resolving what vitest resolves, then fold
`tsc -p tsconfig.test.json` into each `typecheck`.

Fixes the 76 errors it surfaced:
- cli: a wrong `@modelcontextprotocol/inspector-core/...` module specifier
  (should be `@inspector/core/...`; only a type import so vitest never caught
  it), `r.headers` optional-access guards, and partial OAuth mocks replaced
  with typed `makeFakeCliOAuthClient()` / `makeFakeServerSettings()` factories
  instead of `as` casts. Adds `@types/express` (devDep) so the transitively
  aliased test-server source typechecks, mirroring clients/web.
- tui: rest-param signatures on the App OAuth spies (fixes the spread-arg and
  narrow-return errors), a widened callback param (`iss?`), a `makeFakeServer-
  Settings()` factory for the tuiOAuth tests, required OAuth-metadata/client
  fields in AuthTab, and a loosened `entry()` message param for the
  deliberately-malformed wire messages HistoryTab's defensive branches render.

Gate coverage only; no runtime behavior change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test(cli,tui): address review — real spy signatures, config typecheck, nits

Responds to the @claude review of #1799:

- App.test.tsx: type the OAuth spies against the real InspectorClient method
  signatures (`vi.fn<InspectorClient["…"]>()`) and forward `Parameters<…>`
  tuples from the FakeClient wrappers, so `toHaveBeenCalledWith(...)` on the
  six OAuth-lifecycle spies stays argument-checked under the new gate rather
  than accepting anything via `unknown[]`. `getOAuthState` regains its wide
  `OAuthConnectionState | undefined` return.
- Typecheck the client config files too: add `vitest.config.ts` / `tsup.config.ts`
  (and tui `dev.ts`) to each src `tsconfig.json` include — they were the one
  first-party surface still getting no tsc pass.
- Trim the redundant `src/**/*` from each `tsconfig.test.json` include (tsc
  pulls in the src the tests import; the src-only config already checks it).
- Rename the tui settings helper to `oauth-test-fakes.ts` to match cli's, and
  soften both factories' docstrings to stop naming a loader they don't mirror
  field-for-field.
- Fix a stale `@modelcontextprotocol/inspector-core/...` specifier in a
  createRemoteTransport JSDoc example (the same wrong package name the gate
  caught in the cli tests, surviving in a comment).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: address round-2 review — correct claims, tighten types, typecheck launcher

Responds to the round-2 @claude review of #1799:

- Correct the toHaveBeenCalledWith claim: vitest doesn't type-check
  `toHaveBeenCalledWith(...)` arguments against the mock's signature, so the
  App.test.tsx comment no longer claims it does — the typed spies buy checked
  implementations/return payloads (the stale-literal fix), not arg-checking.
- authenticate spy now uses the real `InspectorClient["authenticate"]`
  signature (returns a `URL`), so it no longer diverges from production; the
  one mockResolvedValue is updated to a URL.
- makeFakeCliOAuthClient members are typed against the real CliOAuthClient
  signatures (not bare vi.fn()), so a wrong-signature override is rejected.
- HistoryTab: revert the `entry()` `message: unknown` widening (it un-checked
  the ~15 well-formed fixtures) and instead scope a named `MALFORMED` cast to
  the two intentionally-malformed messages.
- Typecheck the launcher `__tests__` too (the same gate hole in the one client
  the PR hadn't touched): new clients/launcher/tsconfig.test.json + a typecheck
  script folded into validate. Completes the "every client's __tests__ is
  typechecked" invariant.
- Doc the new test-typecheck + config-file typecheck in AGENTS.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: address round-3 nits — launcher config typecheck, callTool typed, docs

Responds to the round-3 @claude review of #1799 (all non-blocking):

- launcher: add `vitest.config.ts` to tsconfig.test.json's include (it was in
  neither project — the build config's rootDir: ./src rejects it). Now
  typechecked.
- App.test.tsx: type `callTool` against `InspectorClient["callTool"]` (+ the
  Parameters<…> wrapper) so its `mockResolvedValue` payloads are checked, and
  give `clearOAuthTokens` an `async () => {}` impl so the mock actually returns
  the `Promise<void>` its type promises.
- AGENTS.md: correct the per-client alias-set description (cli's is widest,
  tui's is core+react only, launcher's has no paths) and note launcher's config
  file lives in its test project, not the src project.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: address round-4 — durable typecheck-coverage guard + launcher/doc nits

Responds to the round-4 @claude review of #1799 (all non-blocking):

- Add `verify:typecheck-coverage` (scripts/verify-typecheck-coverage.mjs), the
  typecheck-coverage analog of verify:format-coverage and the durable guard for
  the invariant this PR establishes: for each Node client it runs the tsconfig
  projects its `typecheck` names with `tsc --listFiles`, unions them, and fails
  on any tracked .ts/.tsx that lands in no project. This closes the class the
  review kept surfacing by hand (launcher/__tests__ in round 3,
  launcher/vitest.config.ts in round 4) — a new top-level file can no longer go
  untypechecked silently. Wired into `npm run ci` and the GitHub workflow.
- launcher: reorder `validate` to run `typecheck` before `build` (matches tui
  and the documented order), and make `typecheck` self-contained — it now runs
  both `tsconfig.json` and `tsconfig.test.json`, so running it standalone means
  the same thing it does in cli/tui.
- makeFakeCliOAuthClient: note on the comment that the typing covers the
  defaults, not `overrides` (a bare vi.fn() override is Mock<(...args)=>any>).
- Docs: README table + AGENTS.md updated for the new guard and the corrected
  launcher typecheck/validate ordering.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: address round-5 — wire-check the guard, --listFilesOnly, into validate

Responds to the round-5 @claude review of #1799:

- Finding 1 (the pre-merge one): the guard now ports verify:format-coverage's
  reachability checks — it asserts each client's `typecheck` is reachable from
  its own `validate` and that the root chain runs each client's `validate`, so
  it can't stay green while measuring a typecheck nothing invokes. Verified:
  stripping `npm run typecheck` from launcher's validate now fails the guard.
- Nit 3: switch `tsc --listFiles` → `tsc --listFilesOnly` (identical file list,
  ~4× faster: whole guard 23s → ~4s). Now cheap enough for the inner loop, so
  it moves into `validate` (right after verify:format-coverage) instead of a
  standalone ci step — matching its sibling. Removed the separate ci-chain entry
  and GitHub workflow step (validate covers it).
- Nit 4: `npx --no-install tsc` so a missing local tsc fails fast instead of
  reaching for the registry (matches verify-build-gate.mjs).
- Nit 5: corrected projectFiles' JSDoc to describe the filter that's actually
  there (drops repo-external + node_modules paths; core/ + test-servers/ stay
  but are harmless).
- Finding 2: fixed the 2-space misindent on the new root package.json line
  (prettier --write). Docs (README/AGENTS) updated for the validate placement.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): address round-6 guard nits — dedupe wiring, robust diagnostics

Responds to the round-6 @claude review of #1799 (all guard-ergonomics nits):

- Nit 2: extract the shared reachability logic (`reachableScripts`,
  `rootRunsClientValidate`) into scripts/lib/npm-scripts.mjs and consume it from
  BOTH verify-format-coverage.mjs and verify-typecheck-coverage.mjs, so the
  "is this gate actually run?" wiring can't drift between them (same rationale
  as scripts/lib/prod-web-server.mjs).
- Nit 1: typecheckProjects now harvests `-p`/`--project` from every script
  reachable from `typecheck` (not the single string), so a delegating
  `typecheck` (`npm run typecheck:src && …`) is handled instead of failing with
  a false "names no -p project" diagnosis. Also accepts `--project`.
- Nit 3: on a tsc config error, echo the `error TS…` diagnostic (scanning both
  streams — tsc prints config errors to stdout) so a broken tsconfig is
  self-explaining rather than surfacing only as a misleading "file in no
  project" report.
- Nit 4: refreshed the CI workflow's stale "Validate" step name/comment (it now
  runs the coverage guards + validate:core + per-client typecheck).
- Nit 5: reworded the `.d.ts` carve-out comment to read as pre-emptive (there
  are none under cli/tui/launcher today).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-7 — guard .mts/.cts too; drop dead export

Responds to the round-7 @claude review of #1799:

- Finding 1: verify-typecheck-coverage now requires a tsc pass for tracked
  `.mts`/`.cts` (not just `.ts`/`.tsx`), matching verify-format-coverage's
  extension set — `.mts` is already the shared-config idiom here, so a client
  `vitest.config.ts` → `.mts` rename can no longer drop out of both the tsconfig
  include and the guard's required set. No-op on today's tree (no client
  `.mts`/`.cts`); confirmed a tracked `.mts` with a type error is now caught.
  Ambient `.d.{ts,mts,cts}` stay excluded.
- Nit 2: drop the unused `export` on `rootReachedCommands` (internal to the lib;
  nothing imports it, and scripts/ isn't eslint-gated to catch dead exports).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: round-8 — single casts in HistoryTab, uniform wrappers, doc scope

Responds to the round-8 @claude review of #1799:

- Finding 1: reduce the `MALFORMED` helper and `entry()`'s return cast from
  `as unknown as` to a single `as` (both compile clean — the malformed shapes
  are comparable to the JSONRPCMessage union), and delete the false "only
  option" sentence. Fixes the AGENTS.md avoid-double-casts violation.
- Nit 3: write all seven FakeClient OAuth wrappers as
  `(...a: Parameters<InspectorClient["…"]>)` (the three zero-arg ones were
  hand-written `()` forwarders), so the block comment's "forward the same
  Parameters<…> tuple" is literally true and a future added parameter can't be
  silently dropped.
- Nit 2: update the five places that still described the guard as `.ts`/`.tsx`
  only to `.ts`/`.tsx`/`.mts`/`.cts` (script header + trackedSourceFiles JSDoc,
  AGENTS.md ×2, README.md).

Nits 4 (js config files out of the typecheck guard by construction) and the
footnoted callTool/ancestor-tsc items left as agreed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: round-9 — drop entry()'s harmful cast; guards vouch for each other

Responds to the round-9 @claude review of #1799:

- Finding 1: remove `entry()`'s `as MessageEntry` return cast in
  HistoryTab.test.tsx. It was unnecessary (the spread of Partial<MessageEntry>
  over complete defaults is directly assignable) and harmful — it silenced type
  errors in the helper's OWN default fields (a `direction`/`method` typo now
  surfaces TS2820/TS2353). MALFORMED's single cast stays (load-bearing). This
  leaves MALFORMED as the file's only cast, matching what the comments describe.
- Nit 2: add `rootReachesScript` to scripts/lib/npm-scripts.mjs and have each
  coverage guard assert its SIBLING is still wired into the root `validate`. A
  guard can't detect being unrun itself, but the two now vouch for each other,
  so dropping either from `validate` is caught by the other (only deleting both
  slips through). Verified: removing verify:typecheck-coverage from validate
  now fails verify:format-coverage, and vice-versa.

Nits 3 (git-index visibility) and 4 (pre-existing as-never/as-unknown casts in
tests — out of scope, none added by this PR) left as agreed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: round-10 — reject non-checking typecheck passes; pre/post hooks; docs

Responds to the round-10 @claude review of #1799:

- Finding 1: verify-typecheck-coverage now rejects a `-p <project>` whose own
  command carries `--noCheck` or `--listFilesOnly` — such a pass lists files
  without type-checking them, which previously satisfied both the wiring and
  file-coverage halves while checking nothing. (Splits each script on
  `&&`/`||`/`;` so a flag on one command can't taint another.) Verified a
  `typecheck` using `tsc … --noCheck` now fails with a clear message; `--noCheck`
  is a live idiom here (cli's test-servers:build), so this is a real copy-paste
  hazard.
- Nit 2: reachableScripts (shared lib) now also follows npm's implicit
  `pre<name>`/`post<name>` lifecycle hooks, so moving a gate into e.g.
  `prevalidate` is recognized instead of producing a false "not reachable"
  failure (cli already uses a `pretest` hook). Verified.
- Nit 3: AGENTS.md "Test placement" now states the Node clients (cli/tui/
  launcher) keep all tests in `__tests__/`, enforced by verify:typecheck-coverage
  (a co-located src test lands in no tsconfig project).
- Nit 4: noted on the factory comments that `Partial<…>` overrides admit an
  explicit `undefined` for a required field (exactOptionalPropertyTypes off).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* fix: round-11 — launcher build excludes tests; guard catches all noCheck vectors

Responds to the round-11 @claude review of #1799:

- Finding 1 (shipping bug): clients/launcher/tsconfig.json now excludes
  `**/*.test.{ts,tsx}` (matching cli/tui). launcher's `build` is an EMITTING
  tsc over src/**, and clients/launcher/build is in the root `files` allowlist,
  so a co-located `src/**/*.test.ts` would have been compiled into the published
  tarball. Excluding it also makes such a test land in no tsconfig project, so
  verify:typecheck-coverage catches it — making the AGENTS.md placement rule
  literally true for all three clients.
- Finding 2: verify-typecheck-coverage now catches both remaining ways a
  typecheck could check nothing: (a) case-insensitive `--noCheck`/`--nocheck`/
  `--listFilesOnly` on the command, and (b) `noCheck` set in the tsconfig itself
  (detected via `tsc --showConfig`, which surfaces it from the config or its
  extends chain). Verified both fail the guard.
- Nits 3 & 4: restructured into an explicit gate-integrity phase (wiring +
  neutered + config-noCheck + no-projects) that reports under its own accurate
  header and exits BEFORE the file-coverage pass — so an inert gate no longer
  prints file-remediation advice, nor buries the real cause under an
  "in no tsconfig project" line for every file that gate covered.

The one CIMD OAuth E2E integration test that flaked in the coverage run passes
32/32 in isolation and on re-run; unrelated to these script/config changes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* fix: round-12 — exclude .mts/.cts tests from build; drop false integrity line

Responds to the round-12 @claude review of #1799:

- Finding 1 (tarball, again): the round-11 test exclude only covered
  `.ts`/`.tsx`, so a co-located `src/*.test.mts` still compiled into launcher's
  shipped `build/`. All three clients now exclude `**/*.test.*` (one glob,
  covering .ts/.tsx/.mts/.cts) — which is also exactly what AGENTS.md already
  claims. Verified a `src/probe.test.mts` is no longer emitted and now fails the
  guard.
- Finding 2: the gate-integrity phase no longer prints a false "names no
  `-p <project>`" line when config-`noCheck` disables projects — the condition
  now keys off `projects.length` (harvested), not `checking.length` (post-
  filter), so a client whose projects were all config-disabled shows only the
  accurate per-project lines.
- Nit 3: recorded the boundary on the phase comment — it does not detect
  shell-level failure suppression (`… || true`, `; exit 0`).
- Nit 5: the file-coverage remediation now leads with "for a co-located test,
  move it to `__tests__/`" (adding it to the src `include` would reintroduce the
  build emit) before the general add-to-include advice.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-13 — implicit-tsconfig + derived clients; diagnostics

Responds to the round-13 @claude review of #1799:

- Finding 1: verify-typecheck-coverage now understands a `tsc` command with no
  `-p`/`-b` project flag — it resolves the implicit `./tsconfig.json` (tsc's own
  default), so the idiomatic `tsc --noEmit` form counts as coverage instead of
  producing false "in no tsconfig project" failures. Also harvests `-b`/`--build`
  project paths. Verified `tsc --noEmit && tsc --noEmit -p tsconfig.test.json`
  now reports OK.
- Finding 2: CLIENTS is no longer hardcoded — it's derived from the `cd
  clients/<x> && npm run validate` entries in the root `validate` chain (minus an
  explicit web exclusion), so a new Node client is auto-required, matching the
  repo-wide reach of its sibling verify-format-coverage. Added a
  guard-would-check-nothing bail if the derivation yields an empty set. Verified
  a new `clients/newclient` is picked up and its uncovered file flagged.
- Nit 3: the phase-2 remediation now leads with the general add-to-`include`
  advice and only appends the "move it to __tests__/" note when a failing path
  is actually a test file (was misdirecting plain files).
- Nit 4: AGENTS.md no longer says the test config includes "only" __tests__
  (launcher's also includes its vitest.config.ts).

(Two different web integration tests each flaked once under parallel load during
the coverage runs — both pass in isolation and on a clean re-run; timing-
sensitive and unrelated to these script/doc-only changes.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-14 — enumerate clients from disk (fail-closed)

Responds to the round-14 @claude review of #1799:

- Finding 1: replace the root-chain `CLIENTS` derivation (round 13) with a
  disk enumeration — every `clients/<name>` whose package.json has a `typecheck`
  script. The chain derivation was fail-open: a root-chain edit that kept
  running a client but didn't match the strict regex silently dropped it from
  the required set (112→53 files, still green). Disk is fail-closed — a client
  can't be silently dropped, a new client with a typecheck is auto-required, and
  web (no typecheck script; builds via `tsc -b`) is excluded on its own, so the
  explicit exclusion is gone. The existing `rootRunsClientValidate` wiring check
  still verifies the root chain runs each — now LOUD when it doesn't. Verified:
  `cd ./clients/tui && …` now hard-fails the integrity phase instead of silently
  shrinking coverage; `cd clients/tui && npm run build && npm run validate` stays
  gated. Removed the now-unused `clientsRunByRootValidate` from the shared lib.
- Nits 2 & 3: documented the two unreachable-today limitations on
  typecheckProjects — a solution-style `tsc -b` (empty `files` + `references`)
  would under-report, and the implicit-tsconfig fallback assumes no file operands.
- Nit 4: refreshed the file header to mention `-b`/`--build` + the implicit
  `./tsconfig.json` (only the JSDoc had been updated).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-15 — enroll-or-exempt enumeration; normalize `cd ./`

Responds to the round-15 @claude review of #1799:

- Finding 1: the disk enumeration keyed on the presence of a script named
  `typecheck`, so renaming it silently dropped the client (112→53, still green)
  — contradicting the docstring. Now every `clients/*` with a readable
  package.json must EITHER declare a `typecheck` (→ enrolled) OR be in an
  explicit EXEMPT map (`clients/web`, reason: `tsc -b`); anything else is a hard
  gate-integrity failure. This is fail-closed on the rename axis too, and web's
  skip is a stated decision rather than an accident of which scripts it declares
  — so web gaining a `typecheck` no longer auto-enrolls it into the solution-`-b`
  false failures. Verified: renaming tui's `typecheck` now hard-fails; a `tsc -b`
  on web stays exempt.
- Nit 3: `rootRunsClientValidate` normalizes a leading `./`, so
  `cd ./clients/tui && npm run validate` (which genuinely runs it) is no longer a
  false "no longer runs" alarm.
- Nit 2: README/AGENTS/script-header prose no longer names a fixed
  cli/tui/launcher scope — they describe the disk-discovered "every clients/*
  with a typecheck script (web exempt)" rule.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-16 — anchor wiring match; close enumeration axes

Responds to the round-16 @claude review of #1799:

- Finding 1 (only false-PASS): rootRunsClientValidate matched the client dir as
  a bare substring, so a prefix-sibling (`clients/tui` vs `clients/tui-next`)
  satisfied the wiring check for the shorter name — dropping a client from the
  root chain went green if a sibling was present. Now an anchored regex (escaped
  dir + optional leading `./` + a trailing boundary). Verified the sibling case
  now hard-fails.
- Nit 2: a `clients/*` dir holding tracked TS but no readable package.json is
  now a gate-integrity failure (was treated as "not a client"), so the
  "fail-closed on every axis" claim holds. Verified.
- Nit 3: readdirSync is wrapped, so a missing `clients/` dir yields the intended
  "found no clients/* dir" message rather than a raw ENOENT stack.
- Nit 4: EXEMPT's reason is now surfaced in the success line ("clients/web
  exempt: typechecks via tsc -b …"), so the exemption is visible at runtime, not
  only in source.

(Also moved `isRequiredSource` above nodeClients — nit 2's new tracked-TS check
calls trackedSourceFiles at module-init, which referenced it before init.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-17 — share quote-aware tokenizer between guards

Responds to the round-17 @claude review of #1799:

- Finding 1: the two coverage guards parsed shell strings differently —
  verify-format-coverage had a quote-aware tokenize(); verify-typecheck-coverage
  used a raw regex. So a quoted `-p "tsconfig.test.json"` (a form tsc accepts)
  made the typecheck guard report every file that project covers as uncovered,
  and a quoted `cd "clients/tui"` in the root chain tripped a false wiring
  failure. Moved tokenize() (now single+double quote) into the shared lib,
  imported it into both guards, rewrote typecheckProjects to walk tokens
  (`-p`/`--project`/`-b`/`--build` → next token), and strip quotes before the
  `cd` match in rootRunsClientValidate. Verified both quoted forms now pass.
- Nit 2: a stale EXEMPT key (a dir that no longer exists) was asserted in the
  success line unchecked. nodeClients now fails if an EXEMPT key isn't a real
  `clients/*` directory. Verified.
- Nit 3 (build/dist filter belt-and-braces) left as a recorded boundary.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-18 — match tsc by basename; strip quotes on both halves

Responds to the round-18 @claude review of #1799:

- Finding 1 (regression from round 17): `tokens.includes("tsc")` didn't match a
  path-invoked binary (`node_modules/.bin/tsc`), which the previous `\btsc\b`
  regex did — so such a `typecheck` was falsely reported as naming no project.
  Now matches on the token basename (`isTsc`), keeping round-17's quoting fix
  while restoring the tolerance. Verified a `node_modules/.bin/tsc` typecheck
  reports OK.
- Nit 2: `rootRunsClientValidate` stripped quotes for the `cd` match but tested
  `npm run validate` against the unstripped string, so `npm run "validate"`
  false-failed. Both halves now test the stripped string.
- Nits 3 & 4: documented on typecheckProjects — the contrived `--noCheck false`
  (checking on) is still treated as disabling, and the `&&`/`||`/`;` split runs
  before tokenizing (a quoted operator inside an arg would split mid-token,
  unreachable for project paths).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test: round-19 — typecheck test-servers' unimported bin; --prefix wiring form

Responds to the round-19 @claude review of #1799:

- Finding 1: `test-servers/src/server-composable.ts` (a `#!/usr/bin/env node`
  bin entry nothing imports) got no tsc pass — the barrel alias covers the other
  13 test-servers/src files transitively, but not this one, and its own build
  runs `tsc --noCheck`, so its errors were emitted into `test-servers/build`
  unchecked. Added it explicitly to `clients/cli/tsconfig.test.json`'s include
  (zero source changes; verified a bad line in it now fails cli's typecheck).
  Softened the AGENTS.md clause that implied the whole test-server source is
  transitively covered.
- Nit 2: `rootRunsClientValidate` now also recognizes the
  `npm --prefix <dir> run validate` invocation form (was `cd`-only).
- Nit 3 (stderr spy drops the completion-callback overload): left as-is —
  latent, not live (no exercised path awaits a stderr drain), and adding typed
  overload params would reintroduce the write-overload complexity the round-1
  vi.spyOn refactor removed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-20 — anchor validate tail; guard shared-source class

Responds to the round-20 @claude review of #1799:

- Finding 1 (false PASS): the wiring matcher's tail `/\brun validate\b/` also
  matched `run validate:fast` (`:` is a word boundary) — a DIFFERENT script that
  may skip typecheck. So the root chain could run a client's `validate:fast`
  while the guard kept measuring its `validate` (unrun), green. Anchored the
  tail to a boundary (`/\brun validate(?=$|[\s&;])/`). Verified `validate:fast`
  now hard-fails.
- Finding 2: durably close the test-servers/src class instead of point-fixing.
  Added a SHARED_ROOTS check — every tracked TS under `test-servers/src` + the
  root `vitest.shared.mts` (the `format:check:shared`/`lint:shared` surface) must
  land in the GLOBAL union of client projects. So a NEW unimported bin entry is
  caught (not just server-composable.ts, named in round 19). Verified a fresh
  `server-orphan-bin.ts` now fails. Zero source changes — the union already
  covers 15/15.
- Nit 4: the integrity message and rootRunsClientValidate docstring now mention
  the `npm --prefix` form too.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-21 — deny-by-default non-client coverage

Responds to the round-21 @claude review of #1799 (findings 1 & 2, one fix):

- Replaced the `SHARED_ROOTS` allowlist with a deny-by-default non-client set:
  all tracked TS minus `clients/*` (per-client pass) minus a reasoned `core/`
  exemption (covered by web's `tsc -b`). This closes BOTH round-21 findings at
  once:
  - Finding 1 (stale allowlist fail-open): a rename of `test-servers/src` no
    longer silently drops it — its files reappear in the required "other" set
    and hard-fail (verified: `git mv test-servers/src test-servers/source` now
    fails instead of going 127→113 green). The subtractive `core/` exemption is
    fail-closed on staleness for the same reason.
  - Finding 2 (allowlist vs deny-by-default): a new top-level TS location is now
    auto-required (verified `tools/probe.ts` is flagged), matching the repo-wide
    reach of the sibling verify-format-coverage.
- Nit 3: added the shared-source clause to the README table row (AGENTS got it
  last round).

Header comment updated to describe the non-client coverage.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-22 — narrow core/ exemption to what web's tsc -b covers

Responds to the round-22 @claude review of #1799:

- Finding 1: the `core/` exemption was whole-tree, but web's `tsc -b` only
  covers `core/**/*.ts` MINUS co-located `*.test.ts(x)` (its app project's
  include). So a `core/*.tsx`/`*.mts`/`*.cts` or a co-located `core` test got no
  tsc pass from anything. Narrowed the exemption to exactly that shape
  (`isExemptCoreFile`): a core `.ts` that isn't a co-located test. So a core
  `.tsx`/`.mts`/co-located test is now required in some project. Zero-fix today
  (0 such files); verified `core/mcp/probe-widget.tsx` and a co-located core
  `.test.ts` are now flagged.
- Nit 2: `EXEMPT_ROOTS` is now a Map (dir → reason) and its reason is surfaced
  in the success line alongside the client exemption.
- Nit 3: the non-client miss message is now the general "in no client's tsconfig
  project"; the `test-servers` remediation clause is conditional on an actual
  `test-servers/` path (tracked via `nonClientMisses`, not string-sniffing the
  composed message).
- Nit 4: success line says "(N clients + non-client)".

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-23 — core exemption mirrors both web projects

Responds to the round-23 @claude review of #1799:

- Finding 1: round 22's `isExemptCoreFile` mirrored only web's app project, but
  web's `tsc -b` also builds `tsconfig.test.json`, which includes
  `core/**/__tests__/**/*.{ts,tsx}`. So a `core/**/__tests__/*.test.ts` (a live
  layout — `core/mcp/__tests__/fakeInspectorClient.ts` already sits there) was
  flagged though web checks it. Now mirrors the UNION: under `__tests__/` →
  exempt `.ts`/`.tsx`; otherwise `.ts` minus co-located `*.test.ts(x)`. Verified
  a core `__tests__` test now passes while a core `.tsx` outside `__tests__`
  stays required.
- Finding 2: `EXEMPT_ROOTS` was a Map whose keys nothing read (round 22 replaced
  its filter with hardcoded `isExemptCoreFile`) — a phantom registry. Collapsed
  to a single `CORE_EXEMPT_REASON` const used in the OK line.
- Nit 3: README/AGENTS scope descriptions updated (core is no longer wholesale
  excluded; the non-client set is deny-by-default).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-24 — enroll clients/web via tsconfig references

Responds to the round-24 @claude review of #1799:

- Finding 1: `clients/web` was whole-tree EXEMPT, but web's `tsc -b` only reaches
  what its four referenced projects include — a file at web's package root
  (e.g. `playwright.config.ts`) got no tsc pass and passed EVERY gate, fully
  silently. This was the last whole-tree exemption wider than the gate it
  defers to. Now web is ENROLLED: a client with no `typecheck` script but a
  `tsconfig.json` `references` array is measured through those reference
  projects (`tsc -p <ref> --listFilesOnly`), and is wired iff its `validate`
  runs `tsc -b` (`validateRunsTscBuild`). EXEMPT is now the empty escape hatch.
  Verified: a web-root `playwright.config.ts` with a type error is now flagged,
  and dropping `tsc -b` from web's build hard-fails the integrity phase.
  Zero-fix on the tree — the union of web's 4 projects covers all 625 tracked
  web files.
- Nit 2: assert `core/` exists (the OK line unconditionally states its
  exemption) — parity with the EXEMPT stale-key check.
- Nit 3: a `core/` miss now gets core-specific remediation (widen web's
  `tsconfig.app.json` include, not a cli/tui project).
- Nit 4: README/AGENTS scope descriptions corrected — web is enrolled (not
  exempt), and the exact core-exempt shape (app `*.ts` minus co-located tests +
  test `__tests__/**/*.{ts,tsx}`).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-25 — drop redundant core exemption; guard tsc -b --noCheck

Responds to the round-25 @claude review of #1799:

- Finding 1: enrolling web (round 24) made the hand-maintained `core/` exemption
  both redundant and fail-open — web's measured `tsc -b` projects already cover
  core, and the mirror could go stale (narrowing web's include let an unimported
  core error pass). Deleted `isExemptCoreFile`, `CORE_EXEMPT_REASON`, the core
  presence assertion, and the exemptNote core clause. `core/` is now required
  like everything else and covered by measurement (127→894 files; a `core/*.tsx`
  web doesn't reach is now caught by measurement, not a hand-model). Kept the
  core-specific remediation clause.
- Finding 2: the reference (`tsc -b`) path skipped the non-inertness check — a
  `tsc -b --noCheck` build gated nothing while the guard stayed green. Turned
  `validateRunsTscBuild` into `tscBuildStatus` (ok/neutered/none); a neutered
  `tsc -b` now hard-fails, matching the typecheck-script path. Factored the
  disabling-flag predicate (`isDisablingFlag`) so both paths share it.
- Nit 3: `clientTsconfigReferences` now strips block comments too (every other
  tsconfig in the repo uses `/* */`).
- Nit 5: README/AGENTS wiring clause covers web's `tsc -b` (not just the
  `typecheck` script), and core is described as measured, not exempt.

Nit 4 resolves itself: EXEMPT is empty and the exemptNote/ternary now collapse
cleanly. Nit 6 (tsc -b bound to a specific tsconfig) left as recorded.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-26 — expand solution configs wherever harvested

Responds to the round-26 @claude review of #1799:

- Finding 1: the reference (`tsc -b`) path was selected only by "no typecheck
  script", so adding `typecheck: "tsc -b"` to web (the natural uniformity move)
  flipped it to the typecheck-script path, where the harvested solution config
  lists nothing → 665 false failures. Fixed at the measurement layer:
  projectFiles now expands a solution config (`{"files":[], "references":[…]}`
  — lists nothing under --listFilesOnly) to its references and measures those
  recursively, so a `tsc -b` project is measured no matter which path harvests
  it. Generalized the references reader (tsconfigReferences(path)). Verified web
  with `typecheck: "tsc -b"` now passes. Dropped the stale "web … is out of
  scope" JSDoc clause.
- Nit 2: a `core/**/__tests__/**` miss now points at `tsconfig.test.json` (its
  actual owner), not `tsconfig.app.json`.
- Nit 4: AGENTS.md's one-line summary now mentions the non-client (`core/`,
  `test-servers/src`) coverage, matching the detailed bullet.

Nit 3 (EXEMPT empty, dormant stale-key check) left as the intended escape hatch.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-27 — non-inertness follows references on both paths

Responds to the round-27 @claude review of #1799:

- Finding 1: round 26 made COVERAGE follow a solution config's references, but
  the non-inertness (`noCheck`) check on the typecheck-script path still only
  inspected the harvested solution (empty compilerOptions) — so a `noCheck` in
  a REFERENCED project was invisible there (caught only on the reference path).
  Factored a shared `resolveLeafProjects` (a solution → its real leaf projects,
  cached rawProjectFiles) used by BOTH coverage (`projectFiles`) and a shared
  `checkingLeaves` disable-check, so a `noCheck` in a referenced project is now
  caught on either path. Verified: `typecheck: "tsc -b"` + `noCheck` in
  tsconfig.app.json now hard-fails (was green). Caching also cut the guard from
  ~20s to ~11s.
- Nit 2: directory-form references (`{ "path": "./packages/a" }`) now resolve to
  `<dir>/tsconfig.json`, so a nested-solution dir reference is expanded.
- Nit 3: reworded the empty-listFiles comment (it's "solution config OR errored
  config", both of which the reference expansion handles).
- Nit 4: script header notes a `tsc -b` solution is reduced to its references on
  either enrollment path.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-28 — dedup shared leaf in checkingLeaves

Responds to the round-28 @claude review of #1799 (which found no new gate hole):

- Finding 1: `checkingLeaves` dedup'd the `checking` array but ran
  projectDisablesChecking + integrity.push on every visit, so a leaf reachable
  from two harvested projects produced a duplicate `noCheck` line (and a
  redundant `tsc --showConfig`). Now tracks visited leaves in a Set and skips an
  already-seen leaf entirely. Verified a duplicate harvested project yields one
  line, not two.
- Nit 3 (record-completeness): noted in AGENTS that the one tier the guard
  structurally can't see — a per-file `// @ts-nocheck` — is owned by
  `@typescript-eslint/ban-ts-comment` across lint:core/lint:shared/each client.

Nit 2 (the ~11s perf claim isn't reproducible on a CI-class runner) and nit 4
(hybrid-solution / composite boundaries, both tsc-rejected → unreachable) left
as recorded.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test(scripts): unit-test the typecheck-coverage guard's parsers

Responds to the round-29 @claude review of #1799 (no new gate hole; the finding
is that the guard itself has no tests):

- Made the guard's pure helpers importable: exported `typecheckProjects`,
  `tscBuildStatus`, `tsconfigReferences`, `clientTsconfigReferences`,
  `resolveLeafProjects`, `isTsc`, `isDisablingFlag`, `isRequiredSource`, and
  moved the module-init + phase execution behind an exported `main()` run only
  when the file is executed directly (importing it for tests no longer runs the
  guard). Behavior when run directly is unchanged (894 files).
- Added table-driven tests (node's built-in `node --test`; the root has no
  vitest harness by design) for the shared lib (`tokenize`, `reachableScripts`
  incl. pre/post hooks, `rootRunsClientValidate` across cd/--prefix/quoted/
  prefix-sibling/`validate:fast`, `rootReachesScript`) and the guard's parsers
  (`isRequiredSource`, `isTsc`, `isDisablingFlag`, `typecheckProjects`,
  `tscBuildStatus`) — one case per rule a review round found (r7/r10/r13/r15/
  r16/r17/r18/r19/r20/r25). 12 tests. Wired `test:scripts` into `validate`.
- Nit 2: a `scripts/*.ts` miss now gets a scripts-specific remediation (keep it
  `.mjs`, or give `scripts/` its own tsconfig project).
- Documented the guard's test suite in AGENTS.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test(scripts): make test:scripts self-guarding; fill parser test gaps

Responds to the round-30 @claude review of #1799 (mutation testing killed 5/5;
findings are about the new test gate + suite completeness):

- Finding 1: `test:scripts` lacked the two properties the guard enforces for
  every tsc pass. verify-typecheck-coverage now asserts, in phase 1, that
  `test:scripts` is reachable from the root `validate` (via the already-imported
  rootReachesScript) AND that its tracked `scripts/**/*.{test,spec}.*` file set
  is non-empty and every file is matched by the command's glob (a new exported
  `globToRegExp`). So dropping it from validate, or renaming a test to
  `*.spec.mjs`/`*.test.mts` (which node --test silently skips), now hard-fails.
  Verified both.
- Nit 2: extracted a pure `parseTsconfigReferences(raw)` from tsconfigReferences
  and table-tested the JSONC tolerance (block/line comments, trailing comma, no
  references, malformed, no path) — the r17/r26 rules had no cover.
- Nit 3: added `-b`/`--build`/bare-`tsc -b` and explicit `--project` cases to
  typecheckProjects's test so its title matches its table.
- Nit 4: rewrote the rootRunsClientValidate test to put `cmd` in a script
  reached from validate, and added the reachability cases (an orphan cd-validate
  must NOT count; validate:tui indirection must) — the r5 property.
- Nit 5: added test:scripts to AGENTS's validate ordering + the README table.

15 guard tests now.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore(scripts): round-31 — glob harvest follows delegation; brace/? globs

Round-31 review findings, both false failures in the new `test:scripts`
self-guard:

1. The glob half read `rootPkg.scripts["test:scripts"]` literally while the
   wiring half two lines above used `reachableScripts`, so a delegating
   `test:scripts` (`npm run test:scripts:lib && npm run test:scripts:guard`)
   — which genuinely runs all 15 tests — reported every tracked test file as
   "not matched by the glob", advising a rename the files already satisfy.
   Now harvested across every script reachable FROM `test:scripts`, the same
   fix round 6 applied to the `typecheck` harvest; `pretest:scripts` counts
   for free.

2. `globToRegExp` escaped `{`/`}` as literals and left `?` as a regex
   quantifier, both divergent from `node --test`'s glob. `*.{test,spec}.mjs`
   is the natural widening here (the guard's own file scan already treats a
   `.spec.` file as a test) and false-failed; `?` silently meant "optional
   previous char" and threw outright when segment-leading. Adds `?` → `[^/]`
   and a brace-alternation pass, with an unbalanced brace falling back to a
   literal.

Nit 3: `resolveLeafProjects`'s two path-resolution rules (the r26
directory-form reference, and refs resolving against the referring config's
dir) extracted as `projectConfigFile`/`refToProject` so they are one-row
tables like the other parsers, rather than untestable behind a `tsc` spawn.

Nit 4: AGENTS.md + README document that the guard now enforces `test:scripts`
on three axes (wired, non-empty, glob-covered).

Verified: probes C and D exit 0; probe B (rename to `*.spec.mjs`) still
caught; `test:scripts` 18/18; `verify:typecheck-coverage` OK 894 files;
`verify:format-coverage` OK 919; `npm run ci` green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

* chore(scripts): round-32 — measure globs with node's own matcher

Round-32 review; both findings point at deleting code.

1. `globToRegExp` hand-modeled `node --test`'s glob and was still one form
   short — character classes (`*[.]test.mjs`, `*.test.[mc]js`) hit the escape
   set and became literals, so the guard false-failed on files node genuinely
   runs. Replaced the whole translator (and its brace balance pre-scan) with
   node's `path.matchesGlob` — 22.5.0+, and the repo floor is >=22.19.0. Same
   *measure, don't model* move round 25 made when it deleted `isExemptCoreFile`
   in favor of measuring web's projects; being exact for every form node
   accepts is the point, since node's matcher is the thing being modeled.

2. The round-31 glob harvest was inline in `main()`, so mutation-reverting it
   to the literal single-script read left the suite green — the commit's
   headline fix was its one untested change. Extracted as `testScriptGlobs`,
   with rows for the direct form, the delegating form (both child globs, not
   `npm`/`run`/`<name>`), a `pretest:scripts` hook, and an unreachable script
   contributing nothing.

Nit 3: `resolveLeafProjects`' JSDoc moved back onto it (the extraction left it
stranded above `projectConfigFile`, which had two stacked doc blocks).

Nit 4a: a `test:scripts` naming no path/glob harvested nothing, and `.some()`
over an empty list blamed every test file with unfollowable advice. Now one
explicit message naming the real problem.

Verified: probes for the direct, delegating, brace, `[.]` and `[mc]` forms all
exit 0 (the last two were false failures before); probe B (rename to
`*.spec.mjs`) still caught; bare `node --test` reports the new single message;
`test:scripts` 18/18; `verify:typecheck-coverage` OK 894; `npm run ci` green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

* chore(scripts): round-33 — scope the glob harvest to `node --test` segments

1. False pass. `testScriptGlobs` kept every non-flag token from every reachable
   script, so a glob belonging to a NEIGHBOURING command was attributed to the
   test runner — and since `.some()` needs only one glob to match, a broader
   one suppressed a real miss rather than adding an inert pattern. A
   `pretest:scripts` of `prettier --check "scripts/**/*.mjs"` (reachable via
   the pre-hook round 31 added) was enough: the probe-B rename to `*.spec.mjs`
   then passed while `node --test` silently ran 12 of 18 tests. Now scoped per
   command segment to the ones invoking `--test`, exactly as
   `typecheckProjects` gates on `tokens.some(isTsc)`. The JSDoc paragraph
   claiming a surplus token can't suppress a miss is corrected — it was false.

2. The gate-integrity block is extracted as `testScriptProblems(scripts,
   testFiles)`, pure and outside `main()`. The nit-4a branch added last round
   was the third consecutive commit whose newest branch sat outside the test
   seam and mutation-survived; extracting the block ends the pattern rather
   than pinning one more condition from the outside.

Verified. The finding-1 probe (prettier pre-hook + `*.spec.mjs` rename) now
exits 1 where it exited 0; the hook alone still exits 0. Mutation testing over
the whole helper — empty-harvest branch to `if (false)`, segment gate removed,
wiring axis removed, non-empty axis removed, segment split removed,
`reachableScripts` to `Object.keys`, `matchesTestGlob` to equality — kills
7/7, including the branch that survived the last three rounds.
`test:scripts` 21/21 · `verify:typecheck-coverage` OK 894 ·
`verify:format-coverage` OK 919 · `npm run ci` green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

* chore(scripts): round-34 — harvest only positional args; normalize `./`

Both findings are the axis round 33 fixed, one level in.

1. False pass. The segment gate stopped a neighbouring COMMAND's glob, but
   within a kept segment the filter was still "any non-flag token", so a
   glob-valued flag's VALUE was harvested as a positional arg.
   `--test-coverage-include "scripts/**/*.mjs"` is broader than the test glob
   and matches a renamed `*.spec.mjs`, so it vouched for the very file the
   runner skips — and it isn't hypothetical: `scripts/` sits outside the ≥90
   coverage gate, so that flag is the obvious next thing added here. Tokens
   preceded by a value-taking `--test-*` flag are now dropped.

2. False failure. `./scripts/**/*.test.mjs` — which `node --test` accepts, and
   the common npm-script idiom — matched nothing, because `git ls-files` emits
   no `./`. Both files were then blamed for a rename that never happened, the
   unfollowable-remediation shape fixed for the bare-runner case last round. A
   leading `./` is normalized off, as `rootRunsClientValidate` already does.

Nit 4: the gate-integrity footer's typecheck-wiring advice is now conditioned
on at least one issue being about the typecheck wiring — a `test:scripts`
failure carries its own per-line remediation, and appending `--noCheck`/`tsc
-b` advice under a renamed-test-file message sends the reader after the wrong
thing.

Verified. The coverage-include probe with the rename now exits 1 where it
exited 0, and exits 0 without the rename; the `./` probe exits 0 where it
exited 1; a `test:scripts`-only failure no longer prints the typecheck footer.
Mutation sweep 9/9 killed, including both new rules. `test:scripts` 22/22 ·
`verify:typecheck-coverage` OK 894 · `verify:format-coverage` OK 919 ·
`npm run ci` green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

* chore(scripts): round-35 — fourth axis: flags that narrow the run

1. False pass on a new axis. The three axes ask whether the tests are run,
   whether there are any, and whether the runner is told about each — none asks
   what it then DOES with them. `--test-shard 1/2` keeps every glob intact and
   executes 6 of 22 tests, exiting 0, with the guard green; `--test-only` runs
   2, as does a non-matching `--test-name-pattern`. This is `--noCheck` for the
   test runner, one domain over. Adds `NARROWING_TEST_FLAGS` and a fourth axis
   in `testScriptProblems`. Three of those flags were already in
   `VALUE_TAKING_TEST_FLAGS` — the guard knew them well enough to drop their
   values but not that they shrink the run. Both `--flag value` and
   `--flag=value` report as the bare flag name.

2. The footer conditioning added last round was itself inside `main()` — the
   pattern the same commit's comment documented, recurring in the commit that
   documented it. Extracted as `integrityAdvice(problems, nonTypecheck)`.

   Doing that fixes nit 3 in the same move: the old condition keyed off
   `testScriptIssues` specifically, so it covered one of three non-typecheck
   categories. A sibling-vouch failure ("the root validate no longer runs
   verify:format-coverage") and client-enrollment problems still got
   `--noCheck`/`tsc -b` advice about a typecheck pass they have nothing to do
   with. All three sets are now excluded.

Verified. `--test-shard 1/2`, `--test-only` and `--test-name-pattern zzz` each
now exit 1 naming the flag, while node runs 6/2/2 of 22. A sibling-vouch
failure no longer prints the typecheck footer. Mutation sweep 12/12 killed,
including all three new rules and the branch this commit replaces.
`test:scripts` 24/24 · `verify:typecheck-coverage` OK 894 ·
`verify:format-coverage` OK 919 · `npm run ci` green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

* chore(scripts): round-36 — discover test files by content, not name

1. False pass on the axis underneath the other four. The required test-file set
   was built with the same name pattern the `test:scripts` glob uses, so a
   rename escaping BOTH was invisible: the file left `testFiles` entirely, so
   nothing asked whether the runner was told about it, and the survivor
   satisfied the non-empty axis. A dot→hyphen slip
   (`npm-scripts.test.mjs` → `npm-scripts-test.mjs`) dropped 6 of 24 tests with
   every gate green — and the file that stops running is the one pinning the
   r16 prefix-sibling and r20 tail anchors, the series' two other false passes.

   Round 30 fixed "renamed to a form the glob misses" by broadening the name
   pattern; a fifth name pattern only moves the boundary again. `node --test`
   decides what a test is by whether it registers tests, so `isScriptsTestFile`
   reads that instead — the same measure-don't-model move as r25 and r32. It
   also covers what no name pattern can: a NEW test file added under a name the
   glob misses, never run and never noticed.

Nit 2: `enrollmentProblems` no longer suppresses the footer. "declares no
`typecheck` script …" IS about the typecheck pass and the footer's first clause
is its canonical fix; excluding it lost the advice for the r15 rename scenario.
The criterion is "is this about the typecheck pass at all", not "does it carry
per-line advice" — several typecheck problems carry their own and still want
the footer. JSDoc corrected accordingly.

Nit 3: the complementary-shard boundary (`1/2` + `2/2` across two reachable
scripts genuinely runs everything, and is flagged anyway) recorded on the
helper, alongside the guard's other documented boundaries.

Nit 4: the three `--test-coverage-{lines,branches,functions}` thresholds added
to VALUE_TAKING_TEST_FLAGS. Their values are numeric and so inert rather than
suppressing, but model completeness is cheaper than re-deriving that later.

Verified. The hyphen rename now exits 1 naming the file; the `.spec.mjs` rename
is still caught; an enrollment failure prints the footer again; the guard is
unchanged at 894 files OK (exactly the 2 tracked test files reference
`node:test`, none of the other 12 `scripts/` files do). Mutation sweep 14/14.
`test:scripts` 25/25 · `verify:format-coverage` OK 919 · `npm run ci` green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

* chore(scripts): round-37 — register-not-mention; guard the discovery read

Both findings were introduced by round 36's content predicate.

1. False failure. The predicate matched a bare `node:test` mention, so a shared
   helper importing the runner's `mock` API — registering no tests — was
   enrolled as a required test file and told to rename itself to `*.test.mjs`,
   which would only make node run an empty file. `scripts/lib/` is already the
   repo's shared-helper location, so this is the plausible next file there.
   Tightened to node's actual criterion: an import/require OF `node:test` AND a
   test registration.

2. Regression. `readFileSync` was passed as an argument, so it ran for every
   tracked `scripts/` file before the predicate's extension gate could reject
   it — a file in the index but not the worktree (`rm` without `git rm`) took
   the guard down with a raw ENOENT stack, aborting phase 1 before any real
   finding printed. Discovery did no reads at all before round 36. Extension is
   now gated first and the read wrapped: an unreadable tracked file warns and
   is skipped, the round-6 precedent where a failed `tsc` echoes its diagnostic
   instead of dying.

Verified: the mock-helper probe exits 0; the tracked-but-deleted probe exits 0
with a one-line skip warning instead of a stack; the dot→hyphen rename is still
caught. Mutation sweep over the predicate 3/3 (import form, registration,
extension). `test:scripts` 25/25 · `verify:typecheck-coverage` OK 894 ·
`verify:format-coverage` OK 919 · `npm run ci` green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

* chore(scripts): round-37 nit 3 — one definition of the JS-extension check

Finding 2's fix hoisted the extension gate into `main()` (it must run before
the read), leaving a second copy of the regex inside the predicate that reads
as protection but can never fire there. Extracted as `isJsFile` and used in
both positions, so the two can't drift.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014vgJ6ZYj9VLhfSjgua48zw

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-27 12:05:35 -04:00
Cliff Hall
c2af547cc8
fix(core): register peer-request handlers before connect (#1797) (#1798)
* fix(core): register peer-request handlers before connect (#1797)

The roots/sampling/elicitation capabilities are advertised on the SDK
`Client` at construction, so from the moment `connect()` sends
`notifications/initialized` the server may issue any of those requests.
The handlers, however, were registered after the handshake resolved and
after `fetchServerInfo()` — leaving a window in which the SDK answered
`-32601 Method not found`.

`server-filesystem` asks for `roots/list` the instant it is initialized
(that is how it learns its allowed directories) and lost the race, so it
silently fell back to its CLI-argument directories instead of the roots
configured in the Inspector. `server-everything` asks later and did not.

Extract the four peer-request handler blocks into
`registerPeerRequestHandlers()` and call it before `client.connect()`.
None of them depend on server capabilities — only on constructor-set
state. The notification handlers that do gate on `this.capabilities` stay
in `connect()`, after `initialize`.

Regression test drives the race deterministically with a fake transport
that delivers `roots/list` synchronously from inside the `send()` of
`notifications/initialized`; it fails on the pre-fix ordering.

Closes #1797

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-1 fixes — pre-connect roots/list_changed, wider timing test (#1797)

Finding 1: `notifications/roots/list_changed` was the one handler in the
post-handshake block that gates on nothing but constructor state, so it
sat in the same race — a server emitting it right after `initialized` had
it silently dropped (no wire error; the symptom is a missed UI refresh).
Moved to a new `registerPeerNotificationHandlers()` called next to
`registerPeerRequestHandlers()` before `connect()`.

Finding 2: the timing test asserted one of the four moved handler blocks.
It now injects `tasks/list` and the `roots/list_changed` notification in
the same burst as `roots/list`, so moving any of the block back after
`connect()` fails the test. Sampling/elicitation stay out — they park a
pending request awaiting user input and have no reply to assert on.
Dropped the unused `sessionId`/`setProtocolVersion` transport fields.

Verified the added assertions are load-bearing: the notification
assertion fails against the previous commit, the `roots/list` one against
`origin/v2/main`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-2 fixes — correct the roots/list_changed premise (#1797)

The round-1 doc comment claimed a server may emit
`notifications/roots/list_changed` at initialize. It can't, normally:
`RootsListChangedNotificationSchema` is a member of
`ClientNotificationSchema` and absent from `ServerNotificationSchema` —
the client sends it (setRoots does, at :4251). The inbound handler is
defensive coverage for a non-conformant server, and dispatches
`rootsChange` with our own already-known roots. Reworded the method doc
and the test's header so neither states the false premise; the move
itself stands (it gates on no server capability, so it belongs with the
request handlers).

Also from review:
- Dropped the vacuous `notificationRejected` flag and its inverted
  comment. The SDK does not throw for an unregistered notification, so
  the try/catch could never observe one — confirmed by bisect, where the
  pre-fix failure was always `rootsChanges`, never the flag. Removing the
  catch also stops it swallowing a genuine throw from the injected
  requests.
- Narrowed `replies` to responses (`"result" in message || "error" in
  message`) so it can't also collect client-originated requests.
- Annotated the unreachable `if (!this.client)` guard with a justified
  `v8 ignore` per the AGENTS.md dead-guard policy.

Re-verified both regression directions: the `roots/list` assertion fails
against `origin/v2/main`, the `rootsChange` one against `55e25b7c`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-3 fix — drop stale comments inside the roots handler (#1797)

The four inline comments moved verbatim with the handler contradicted the
method doc reworded one round earlier: they said "server's roots" (they
are ours — it is a ClientNotification) and "we'll just dispatch an empty
array", which is not what `this.roots || []` does when roots are
configured. The new timing test asserts exactly that non-empty dispatch.
Replaced with one accurate line. Comment-only.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(cli): advertise roots so roots/set is actually serviceable (#1797)

Round-4 review found the same -32601 symptom on a second path: the CLI
constructed its InspectorClient with no `roots` option, so
`capabilities.roots` was never advertised and no `roots/list` handler was
registered — yet `--method roots/set` calls `setRoots()`, which announces
`notifications/roots/list_changed` to the server. A server taking up that
invitation got "Method not found", after the CLI reported success.

The review's suggested fix — register `roots/list` unconditionally — is
not implementable: the SDK asserts the client capability inside
`setRequestHandler` ("Client does not support roots capability"), so it
throws during connect for any client built without the option, and
`registerCapabilities` refuses to run after connect. A client that omits
`roots` therefore cannot legally serve `roots/list` at all.

Fixed at the layer that can fix it: `cli.ts` seeds `roots: []`, matching
web (`App.tsx` always passes it). The core registration stays gated on
the constructor value, now with the SDK constraint documented so the next
reader doesn't retry the unconditional version.

`setRoots()`'s doc claimed it "will enable roots capability if it wasn't
already enabled" — it cannot, for the reasons above. Corrected, and
dropped the dead `if (this.roots === undefined) this.roots = []` the very
next line overwrote.

Tests: a CLI test drives `list_roots` over an HTTP test server (verified
load-bearing — without the seed it fails on the -32601 error text), and
the core timing test gains a case pinning that roots set after connect
are served with the current values, not the constructor's.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(cli,tui): advertise the roots configured in mcp.json (#1797)

Round-5 review: seeding `roots: []` fixed the -32601 but not the outcome.
`server-filesystem` discards an empty roots answer (`validatedRootDirs
.length > 0`) and keeps its CLI-argument directories — which is the
symptom this PR set out to fix. The user's roots were already in hand two
lines away, on `serverSettings.roots` (lifted from mcp.json by
`mcpConfigToServerEntries`). Now passed through `cleanRoots`, the same
shared helper web uses, so both clients answer `roots/list` byte-identically
for the same config.

This matters most on the CLI because it is one-shot: `--method roots/set`
sets roots on a connection torn down a few statements later, so the config
file is the only durable way to give a run its roots.

Same gap in the TUI (`App.tsx` built its options with no `roots` key at
all), fixed the same way. The review suggested a follow-up issue for it;
folding it in here instead, since it is the identical line and splitting
it would leave a known-wrong client in tree.

Also from review: hoisted `waiters` up with the other fields, and
`injectRequest` now rejects after 1s naming the method and id rather than
hanging to the vitest timeout.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-6 fixes — document roots in the CLI README, harden cleanRoots (#1797)

- clients/cli/README.md enumerated the settings lifted from a catalog/config
  file without roots. Roots are the least discoverable member of that list —
  there is no flag, and `--method roots/set` dies with the connection — so
  the file is the only durable way to supply them. Said so.
- cleanRoots() trusted its input's shape. `Root[]` is a compile-time type over
  hand-editable mcp.json, and as of this PR all three clients feed it straight
  from disk, so `"roots": [{"name":"Work"}]` or `"roots": "file:///work"` threw
  at connect. Non-array bails to []; an entry without a string uri is dropped
  with a warning. Hardened in the one shared place rather than three call
  sites. Review suggested a follow-up issue; folded in for the same reason as
  the TUI fix last round.
- Test comment said the CLI passes a `roots: []` seed — true one commit ago.
- injectRequest clears its timeout on reply (an armed timer outliving a test is
  the #1760 teardown class), and setRoots' doc drops the "despite what this
  comment used to claim" archaeology.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-7 fix — cleanRoots also throws on a non-string name (#1797)

The round-6 hardening guarded `uri` and left `name` throwing one line
later: `r.name?.trim()` guards null/undefined, not "is a string", so
`"roots": [{"uri":"file:///a","name":42}]` still died at connect — the
same crash class, one field over, reachable from all three clients and
the web settings-save path. Reproduced against the shipped function body
before fixing.

A bad `name` now costs the name, not the root (it is optional, and the
uri is still usable), with a warning. The doc no longer overstates what
is validated.

Also from review: the CLI test comment said "`cli.ts` now seeds
`roots: []`" — true only of that ad-hoc test's path; and the
registration comment's `(:588)` line reference is now a durable name.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): normalize roots in setRoots() too (#1797)

Round-8 review: this PR made cleanRoots the single normalizer for roots at
connect and at save, but setRoots — the third way roots enter the client —
did a bare `this.roots = [...roots]`. Web cleans at its call site; the CLI
does not, so `--method roots/set --roots-json '[{"name":"Work"}]'` stored a
root with no uri, advertised it in the roots/list reply, and echoed it back
as success. cleanRoots is idempotent, so calling it inside setRoots covers
the CLI without disturbing web's pre-clean, and all three entry points now
agree.

Review filed this as an optional follow-up; folding it in for the same
reason as the TUI and cleanRoots items — it is smaller than the issue
describing it.

Test asserts the malformed entry is dropped and the valid one survives;
verified load-bearing against the bare-spread version.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-9 fixes — normalize roots in the constructor too (#1797)

The round-8 commit claimed "all three entry points now agree"; review
pointed out the constructor is a fourth, and the only one still raw. All
three clients clean at their call site, so nothing was broken — but the
invariant was enforced by convention rather than by the class, at the very
entry point this whole thread started from. `this.roots` now runs through
cleanRoots, with a ternary so the `undefined`-vs-`[]` distinction that
gates capabilities.roots survives.

Also from review:
- The CLI roots/set test provoked a cleanRoots warning without suppressing
  it (AGENTS.md). Suppressed, and the spy now asserts the drop was
  reported rather than silent.
- `enables roots when previously undefined …` in coverage-backfill was
  named after behaviour round 5 established does not exist. Renamed, with
  a comment on what that client actually can and cannot do.
- setRoots dispatches a copy to rootsChange, as getRoots() already did, so
  a listener can't push into the list we advertise.
- run-method.test.ts's connectStdio now passes `roots: []` like cli.ts, so
  the helper matches the client shape production builds.

Verified load-bearing: the constructor test fails against the raw
assignment. validate / coverage / build-gate / smoke / storybook all green
(run as separate stages — full `npm run ci` kept being killed mid-coverage
by the environment).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-10 fixes — copy at both rootsChange dispatches (#1797)

Round-9 claimed setRoots' copy closed the "a listener can't push into the
list we advertise" hole. It closed one of two sites: my reply conflated
the notification handler's *dispatch* with the roots/list *request*
handler — the latter is serialized to the wire immediately and is fine,
the former hands listeners the internal array. Both copy now.

Also from review: dropped the `({}) as never` in the new constructor test
for the real factory the sibling tests use (this test never connects, so
it is never invoked), and the needless `async` on it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-11 doc fixes; merge v2/main (#1797)

- cleanRoots' opening sentence still framed it as the settings-form
  normalizer, contradicting the paragraph below it that says every client
  feeds it from disk. It has four callers now; says so.
- Marked the two runtime guards `Keep:` with the reason. The `Root[]`
  parameter narrows both to `never`, so "the compiler says this can't
  happen" is the argument someone will use to delete the checks rounds 6-7
  installed. The reason now lives where the deletion would happen.
- Noted the constructor-normalization case in the timing test's header, so
  it is discoverable from a file otherwise about the initialized race.

Also merged origin/v2/main (#1796, loopback binding), which had advanced
by one commit and touched the smoke scripts.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): clear queued peer requests when connect() fails (#1797)

Round-12 review found a second-order consequence of the handler move.
Before it, registration happened after every await in connect(), so the
moment a peer request could be queued the connect could no longer fail —
queue and failure path never overlapped. Registering before the handshake
puts both the handshake and the post-connect `setLoggingLevel` inside that
window.

The catch sets status to error and drops the transport but never cleared
pendingSamples/pendingElicitations; only disconnect() does, and connect()
reaches it solely on the connect-timeout path (not the default). So a
server that elicits at `initialized` and then fails the connect left a
live pending-request modal on a dead connection — web derives it from the
queue lengths with no status gate — and the elicitation's cancel() never
fired, hanging any awaitUrlElicitation waiter.

Extracted disconnect()'s clear-and-cancel into clearPendingPeerRequests()
and called it from the catch, dispatching the change events so the UI
drops the modal. CLI/TUI are unaffected either way (sample/elicit off).

Test note: the first version of this test passed with and without the fix
— its `requestedSchema` omitted `properties`, so the SDK rejected the
inbound params and nothing was ever queued. Fixed the fixture; it now
fails without the change with a queued ElicitationCreateMessage.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): clear the peer-request queue on a mid-session crash too (#1797)

Round-13 review, two items.

The test asserted only `getPendingElicitations()`/`getPendingSamples()`,
which read the arrays directly — but the arrays are not what removes the
modal. `usePendingClientRequests` tracks its own state off the
pendingSamplesChange/pendingElicitationsChange events, so a regression that
cleared without dispatching would strand a live modal on a dead connection
and stay green. Both tests now assert the events fired with an empty
payload; verified by deleting just the dispatches, which fails them.

The connect-failure fix left the other way a connection ends uncovered:
a mid-session crash goes through the transport's `onclose`, which sets
status and fires `disconnect` but never touched the queues. Same two
hazards, and arguably more reachable. `clearAndAnnouncePendingPeerRequests`
wraps the clear plus its events, guarded on a non-empty queue so the paths
that overlap (a connect failure whose dropCachedTransport also fires
onclose) announce once; called from both. New test queues an elicitation,
fires onclose, and asserts the queue and the event — fails without the
change.

Review flagged the crash path as a follow-up; folding it in, as with the
earlier out-of-scope items — it is the same seam and three lines.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-14 fixes — make both teardown paths agree (#1797)

- The crash path's comment claimed "cleared before the `disconnect` event
  so a consumer sees an empty queue" while disconnect() cleared *after*
  its own dispatch — an invariant stated as a property and held at one of
  two sites, the same shape as the round-10 finding. Moved disconnect()'s
  clear above its status/disconnect block so both paths agree; its change
  events stay batched with the other teardown dispatches. Full gate green,
  so nothing depended on the old ordering.
- clearPendingPeerRequests' doc still named the `connect()` failure path as
  a caller; that path now goes through clearAndAnnouncePendingPeerRequests.
  Names the two real callers.
- The mid-session test waited on `await Promise.resolve()` — the
  microtask-counting pattern this file replaced with injectRequest two
  rounds ago, working today only because the enqueue happens exactly one
  tick deep. Waits on the client's own `newPendingElicitation` instead.
- The file header still called the constructor case "the last case"; it is
  third of five, and the two teardown cases went undescribed. Rewritten.
- Restored the missing blank line between two tests, and noted why the
  sampling-event assertion holds for a queue that never held anything.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-15 fixes — scope the parity claim to the arrays (#1797)

Round-14 made the two teardown paths agree on when the queue is cleared,
and the comment then claimed parity flatly. It holds for the arrays but
not the events: the crash path announces before `disconnect`, while
disconnect() batches its change events with the rest of its teardown, so
they land just after. Since the events are what drives the modal, the
distinction matters to the next reader. Scoped the comment rather than
un-batching — un-batching would trade a documented ordering for a real
behaviour change with no gain.

Same rule as round 14, one level down: check the other site, then check
the other axis.

Also gave the new `newPendingElicitation` wait the timeout that
`injectRequest` documents, so a regression that stops the enqueue fails at
the wait instead of hanging to the vitest timeout.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* test: pin disconnect()'s clear-before-announce ordering (#1797)

Round-14 moved clearPendingPeerRequests() above disconnect()'s status
block so a `disconnect` consumer sees an empty queue on both teardown
paths, and round 15 documented it — but nothing enforced it. The existing
`disconnect` listeners only count events, and the two teardown tests cover
the crash and connect-failure paths, neither of which goes through
disconnect(). So the one behavioural change in the stack was untested in
both directions, and the tidy that undoes it (regrouping the clear with
the batched change events) would have stayed green.

Test records the queue length from inside a `disconnect` listener; the
fixture's close() never fires onclose, so it exercises disconnect()'s own
ordering rather than the crash path. Verified against the pre-round-14
position: `expected 1 to be +0`.

Folded the newPendingElicitation wait into a shared helper now that two
tests use it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* test: pin disconnect()'s announce as well as its clear (#1797)

Round-16 pinned the array half of disconnect()'s teardown and left the
events unpinned — and nothing else in the suite covers them, so deleting
disconnect()'s two change-event dispatches would have left a live modal
after a user-initiated disconnect with the suite green. That is the path
most likely to have a modal open when it runs. Asserted after the await
rather than inside the disconnect listener, since disconnect() batches the
events deliberately; verified by deleting the dispatches (`expected
undefined to be +0`).

Header rewritten by category rather than position: it has now gone stale
twice in three rounds because it counted tests ("the last two") and
enumerated paths that a new test falsified. It names the three teardown
paths and what distinguishes them instead.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-18 doc fixes — scope the three-path claim, re-attribute cancel() (#1797)

The header I rewrote last round claimed all three teardown paths clear
before announcing. True only if "announcing" means the `disconnect` event:
the connect-failure path emits none at all, and both it and the crash path
clear after their `statusChange`. Scoped to what's true. Same shape as
rounds 10/14/15 — a parity asserted in prose that holds on one of the axes
it could mean — which is now the fourth time, in a sentence I wrote.

ElicitationCreateMessage.cancel()'s doc still credited `disconnect()`
teardown; this PR made clearPendingPeerRequests() its only caller, serving
three paths. Re-attributed, and promoted the no-`onRemove` note to its own
paragraph with the consequence spelled out — it quietly became a
three-caller invariant during this PR, and "don't splice mid-iteration"
reads like a style note until you know it would skip every other entry and
leave those promises unsettled.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): gate roots/list on what was advertised, not on this.roots (#1797)

Round-19 review found a latent wedge, reproduced before fixing: a client
constructed without `roots` that later calls setRoots() has this.roots
defined, so registerPeerRequestHandlers tried to register the handler on
every subsequent connect() — and the SDK throws "Client does not support
roots capability" from setRequestHandler when the capability was never
advertised. That throw lands before the handshake, so the client can never
reconnect. Worse than the -32601 this PR started from: the connection is
gone rather than answering one method badly.

Not a regression (the same gate lived after the handshake before) and
unreachable from the three shipped clients, which all pass roots. But
core/ is a library surface, and the failure is unrecoverable.

Gate now reads a construction-time `rootsCapabilityAdvertised` — the thing
the SDK actually asserts on — so this.roots stays free to change. setRoots'
doc says what does happen on such a client: the roots are stored and
readable, but no server can ask for them.

Also scoped the header's claim that the connect-failure path emits no
`disconnect`: true of connect()'s own catch, but on a real transport
dropCachedTransport's close() fires onclose first, which does dispatch one
— making the catch's own call the auth-recovery backstop.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-20 — derive the roots gate from the advertisement itself (#1797)

Round-19's fix restored the invariant but not the derivation:
rootsCapabilityAdvertised was computed from `options.roots` alongside the
capability block rather than from it, so the two encodings of "did we
advertise roots" could drift. Adding any term to the advertisement
condition would leave the flag true with `capabilities.roots` absent —
the same unrecoverable wedge, reintroduced silently and in the throwing
direction.

Now read off the built capability object after it is assembled, so
divergence is structurally impossible rather than merely absent. Verified
the reconnect test still fails against the old `this.roots` gate.

Also: named the capability-lifetime category in the test header (the new
test was none of the three it listed), moved that test below the teardown
group so the group stays contiguous, and rewrapped the over-long comment
line.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): gate elicitation/create on what was advertised too (#1797)

Round-21 review asked round-20's question of the capability next door, and
there the two derivations already disagreed — no future edit needed.
`elicit` is typed `boolean | { form?, url? }`, so `{}` or
`{ form: false, url: false }` is valid, enables no mode, and advertises no
`capabilities.elicitation` — while the registration gated on `this.elicit`
being truthy. Reproduced before fixing:

  CONNECT ERROR: Client does not support elicitation capability
                 (required for elicitation/create)

Since #1797 moved registration before the handshake, that throw means the
client cannot connect at all. Same wedge as the roots one, one capability
over, and reachable through a documented option value rather than a future
edit.

Gated on a new elicitationCapabilityAdvertised, derived from the built
capability object exactly as the roots flag now is. Test constructs with
`{ form: false, url: false }` and asserts connect() resolves; verified
load-bearing.

Also made the four construction-time capability inputs (sample, elicit,
receiverTasks, advertisedExtensions) `readonly`. The round-19 bug was a
mutator making a construction-time fact stale, so a future setter for any
of these should be a compile error rather than a review catch.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): derive tasks.requests and the remaining gates from the advertisement (#1797)

capabilities.tasks.requests declares which server→client requests we accept
as tasks, but was built from `receiverTasks` alone — so
`{ receiverTasks: true, elicit: false }` told the server it could send a
task-augmented elicitation/create while advertising no elicitation
capability and (since the last commit) registering no handler. A server
taking the invitation gets -32601: the advertise-then-refuse shape this PR
opened with, and the last place it survived. Now built from
capabilities.sampling / capabilities.elicitation, both decided just above,
with the key omitted entirely if neither applies.

Also made the remaining three registration gates read the built capability
object like the two from the last two rounds — sampling, tasks/*, and the
URL-elicitation completion handler. None could diverge today, but a mixed
convention means the next reader has to re-derive which gates are safe, and
adding one condition to an advertisement block is exactly how elicitation
broke. Five gates, one rule now.

Test asserts a receiverTasks+elicit:false client advertises tasks.requests
with sampling and without elicitation; verified load-bearing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-23 — pin the omitted-requests arm, drop the count again (#1797)

The `requests` key is omitted when neither sampling nor elicitation is
advertised, but every `receiverTasks: true` construction in the tree left
one of them enabled, so that arm was unexercised — and it would not have
shown as a coverage failure, since one uncovered branch in a ~4900-line
file sits well inside the per-file gate. Second client in the same test
asserts `tasks` survives (list/cancel are still serviceable) while
`requests` is absent rather than empty; verified against `requests:
taskRequests`.

The header regained a numeral four commits after round 17 rewrote it by
category to stop exactly that, and it was already stale. Dropped, and named
the third category — advertise-only-what-you-serve, which is about the
capability object rather than a registration gate.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): settle queued samples on teardown instead of discarding them (#1797)

Round-24 review. Round 13 recorded the samples-vs-elicitations asymmetry
as deliberate on two grounds: nothing internal awaits a sample, and the
transport is gone by then. The first still holds; the second is false on
one path, and it is a path this PR created. `connect()`'s catch drops the
transport only when `!transportHasAuthProvider`, so on the HTTP+OAuth path
— web's ordinary authenticated case — it is retained and the caller
reconnects over it. A sampling request queued during the handshake was
then discarded with the connection still live: no response frame ever
written, and the server waits forever for a reply to a request we
accepted. Accept-then-silence, which is worse for the peer than the
-32601 this PR opened with.

SamplingCreateMessage.cancel() mirrors the elicitation one — settles
(rejects, what the UI's decline path already sends and the SDK turns into
an error response) without calling onRemove, since the caller iterates the
queue and clears it. clearPendingPeerRequests loops it like the
elicitations.

Also corrected two comments that assumed the catch always tore the
transport down, and noted that the retention is gated on
transportHasAuthProvider alone — independently of
isConnectAuthRecoveryError, which gates only the status hold.

Test asserts settlement rather than a wire frame, since on the disconnect()
path the transport is closed before the settle; a later respond() throwing
"already resolved or rejected" is the proof. Verified load-bearing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): mark receiver-task payload promises handled (#1797)

Round-25 review. clearPendingPeerRequests iterates every entry in
pendingSamples, and two shapes live there: the plain server-request one,
whose reject reaches the SDK handler, and the task-augmented one, whose
reject reaches the receiver task's payloadPromise. That promise only gets
a consumer when the server polls tasks/result, so a task sitting in
input_required has no handler attached — and the settle added last commit
surfaced as an unhandled rejection.

Not hypothetical: the repo already worked around it test-side, with a
helper that reaches into private state to attach no-op catches, whose
comment describes this exact race. Fixed at the source instead — one
`void payloadPromise.catch(() => {})` at creation, which also covers the
pre-existing cancelReceiverTask path. Removed the now-redundant helper and
its two call sites. Verified: dropping the source line makes that suite
report two unhandled rejections.

Corrected SamplingCreateMessage.cancel()'s doc — its "no response frame is
ever written" rationale is true of the plain shape only; a task-augmented
sample already answered the wire with a CreateTaskResult, so settling it is
about not leaving the task in input_required limbo.

Nits: generalized the enqueue wait helper to both events so the sampling
wait gets the timeout the elicitation one has; moved the sampling teardown
test back into the contiguous teardown group; named the settle property in
the header; fixed the fixture doc that still claimed to record replies.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-26 — drop the comment that outlived its call (#1797)

The suppressReceiverPayloadRejections call went last commit; its two-line
comment stayed, describing a pre-attach that no longer happens and
crediting the test for handling a rejection the source now handles.
Removed. Also reworded the surviving .catch() in inspectorClient.test.ts:
it is still needed, but as a value capture for the assertion, not for
unhandled-rejection suppression.

Rewrapped the teardown paragraph in the test header — my round-25 edit
left a 104-char line, and two hand-fixes left it ragged, so it is reflowed
in one pass.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-27 — skip the roots/list_changed the SDK would refuse (#1797)

Review reported setRoots() emitting roots/list_changed on a client that
never advertised roots, inviting a re-fetch we'd answer -32601. Probed it:
the premise is wrong. The SDK asserts the notification capability too —
`notification()` rejects with "Client does not support roots list changed
notifications" and nothing reaches the wire. No spec violation and no
invitation; what actually happened is that setRoots provoked that
rejection and logged it as "Failed to send", implying a transient failure
where the truth is structural.

Kept the early return on that corrected basis: it stops us provoking a
rejection we know will come, and warns accurately instead. Doc and comment
say the SDK is the enforcer rather than claiming this guard is what keeps
the wire clean.

The test pins the end state (no invitation for roots we can't serve) and
passes either way — recorded as such rather than presented as a regression
guard, since it isn't one.

Also moved the advertise-category test below the two gate cases, matching
the order the header introduces them.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-28 — gate the notification on the predicate the SDK asserts (#1797)

The roots/list_changed guard read `capabilities.roots !== undefined`, but
the SDK asserts `capabilities.roots.listChanged` for the notification —
wider than the flag. Identical today (roots are only ever advertised as
`{ listChanged: true }`), but a conditional advertisement would un-gate it
silently, which is the round-21 shape again. Split into
rootsListChangedCapabilityAdvertised, mirroring
urlElicitationCapabilityAdvertised, which already reads its assertion's
sub-field; rootsCapabilityAdvertised keeps the roots/list registration,
where presence is what setRequestHandler checks.

Also moved the new test out of the gate pair it had split — it is a
runtime-emission case, not a registration-gate one — and extended the
header's converse-category paragraph to cover notifications, which indexes
it without inventing a category. Reflowed the setRoots doc paragraph in one
pass (111-char line from the last commit, plus a ragged orphan from an
earlier edit).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-29 — chase the corrected premise into clients/cli (#1797)

Round 27 corrected "setRoots announces roots/list_changed to a server that
then gets -32601" — the SDK refuses the notification from a client that
never declared it, so nothing reached the wire. That reword happened in
core/, but the same premise had been written into the two comments
justifying the CLI's roots seed, and they still asserted it. Both now state
the real pre-fix failure: a server asking for roots on its own got -32601,
and roots/set could not announce at all.

Also fixed the warn message under the round-28 gate: it named the roots
capability while the gate is on roots.listChanged — precisely the pair that
split was made to distinguish, so a client advertising `{}` would have been
told it advertised nothing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): reject in-flight raw-wire requests on a mid-session crash (#1797)

rejectPendingRawWireRequests had one caller — disconnect() — so the crash
path settled the inbound peer-request queue this PR added and left the
outbound raw-wire map alone. That map holds the modern tasks/* frames the
SDK's era gate refuses to route, so the SDK's chained _onclose doesn't know
about them: a Tasks-tab poll in flight when the server died waited out its
own 30s timeout and reported a timeout for what was a crash, on a
connection that had already dispatched `disconnect`.

Pre-existing — both the map and the crash path predate this PR. Fixing it
here because the invariant it violates is one this PR wrote down: "every
path that ends a connection has to clear that queue, announce it, and
settle each entry", in clearAndAnnouncePendingPeerRequests' doc and the
timing test's header. One channel was true of one path out of three.

Test starts a raw-wire request and fires onclose; without the call it
hangs to the vitest timeout, which is the symptom.

Checked the two siblings and left both: taskInputAbortControllers is
already unblocked via the elicitation cancel the crash path performs, and
activeToolCallAbortController rides an ordinary client.request the SDK
settles itself.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-31 test fixes — justify the cast, drop the no-op tick (#1797)

- The new test's `as unknown as` had no justification, which AGENTS.md
  explicitly prohibits. It is unavoidable — rawWireRequest is private and
  every public route is gated on isTasksExtensionNegotiated(), which needs
  a modern handshake the fixture doesn't perform — so that reasoning is now
  written down instead of left to be re-derived.
- `await Promise.resolve()` was a no-op: rawWireRequest registers its entry
  in the promise executor, synchronously, before any suspension. Dropped,
  which also makes the test pin that ordering rather than paper over it —
  and stops the third recurrence of the microtask-counting pattern this
  file's own helper doc argues against.
- Moved the test into the teardown group and extended the header's teardown
  paragraph to cover the outbound direction, which it framed entirely as
  inbound.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-32 — separate the outbound teardown claim from the inbound one (#1797)

My round-31 header edit spliced the outbound raw-wire passage into the
middle of the inbound claim, so "There are three: a failed connect(), a
mid-session transport close, and an explicit disconnect()" ended up reading
as scoping the outbound settle — which is two by design, since nothing
populates the map before the handshake. Round 31 established that scoping
so the code wouldn't imply an impossible state; the prose then un-scoped
it. Split into its own paragraph with its own scope clause, and reflowed
both in one pass rather than nudging breaks.

Also raced the raw-wire assertion, for the reason the file's own wait
helper documents: without the teardown rejection the test waited out the
request timeout and reported a bare vitest timeout. It now fails with
"raw-wire request not settled by teardown" — verified.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-33 — extract the timeout race, mark the failure-path promise handled (#1797)

Three copies of "reject after 1s so a regression fails where it happened"
had accumulated, each re-explaining itself. Extracted `withTimeout`, used
by the enqueue wait and the raw-wire assertion; injectRequest keeps its own
since its timeout also deletes the waiter entry.

On the failing path the raw-wire test left the production 30s timer armed,
so a regressed run got the intended failure plus a stray unhandled
rejection up to 30s later — the armed-timer class the file's own comment
names, on the failure path. `settled` is marked handled before the race.
Verified: with the fix removed the run fails with "raw-wire request not
settled by teardown" and no unhandled rejection.

Recorded why disconnect() drains the SDK's in-flight requests but rejects
the raw-wire map outright: the user asked to disconnect, and a Tasks poll
is not worth delaying that for. Pre-existing and deliberate, now written
down where the asymmetry is visible.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-34 — drop a no-op guard and the false mechanism it asserted (#1797)

Round 33 claimed the raw-wire test could leave `settled` rejecting
unhandled on a regression run, and round 33's fix encoded that as
`void settled.catch(() => {})` with a comment explaining it. Both were
wrong: `Promise.race` attaches a rejection handler to every input, so
`withTimeout(settled, …)` on the next line already marks it handled.
Verified with a standalone script — no unhandledRejection fires, and the
pre-fix version was equally safe.

Removed the line and the comment. The comment mattered more than the line:
it told the next reader that `Promise.race` does not mark its losers
handled, which is false and would cost them elsewhere.

Kept the true half by setting `timeout: 50` on that test's client, so a
regression leaves no 30s timer armed and fails with `Raw request
"tasks/get" timed out after 50 ms` — more self-describing than the raced
generic message. Verified.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-35 — the drain comment described a trade-off nobody made (#1797)

Last round's comment said raw-wire requests "get no share of the drain
above: the user asked to disconnect, and a Tasks poll is not worth delaying
that for" — framing a decision. Verified it isn't one: `safeDisconnectTimeout`
defaults to 0 and the only caller anywhere that passes a value is a single
test, so nothing is drained in production; and the drain polls the SDK's
`_responseHandlers`, which never holds raw-wire ids, so those were never
eligible regardless.

Reworded to what is true. The framing came from my own round-33 reply,
which described the drain as running on every disconnect — a comment
faithfully encoding a half-read mechanism, which is the same failure as the
`Promise.race` one it followed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-36 — the race comment outlived the mechanism its own commit replaced (#1797)

`timeout: 50` made the request settle in ~50ms, so the 1s race can never
win and a regression fails on the assertion (`timed out after 50 ms` vs the
expected /Connection closed/) — which the commit message said, while the
comment beside it still credited the race. Reworded: the short timeout is
what fails fast and names itself, the race is the backstop for a promise
that never settles at all. Race kept; it covers the case where the
request's own timer is broken too.

Third comment in three rounds encoding a mechanism the same commit changed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-37 — scope the timeout comment, align the bypass guards (#1797)

`timeout: 50` is the client-wide request timeout, not a bound on the
raw-wire request; it is inert in that test only because the test issues no
SDK request after connect. Noted, so someone adding one later knows it
would inherit a 50ms budget rather than reading the comment and looking
elsewhere.

The two installReceiverTaskResponseBypass guards read `this.receiverTasks`
while the five gates around them read the advertisement. Installing the
bypass mutates the Protocol's _requestHandlers map, so it is registration —
same as the setRequestHandler it follows. Equivalent today; aligned so the
convention is uniform rather than something the next reader has to
re-derive per site. The genuinely-runtime `receiverTasks` reads are left.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-38 — one predicate for the whole bypass mechanism (#1797)

Round 37 moved the bypass *install* guard to the advertisement and left the
three branches it controls on the raw option, splitting one immutable fact
across two sources. The dead direction is the harmful one: if the tasks
advertisement ever acquires a condition — the exact edit that produced the
elicitation wedge — then advertised goes false while receiverTasks stays
true, the bypass is not installed, and the handler still returns
`{ task }` into the SDK's validating wrapper, which rejects it. That is the
breakage the bypass exists to prevent, and before round 37 it could not
happen because install and branch read the same field.

All three now read tasksCapabilityAdvertised. `receiverTasks` is left where
it belongs: assigned once, and driving the advertisement.

Also noted that the wrapper's own check is redundant with its install guard
and kept deliberately, since it must agree with the handler branch.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): don't carry receiver tasks into the next session (#1797)

Round-39 review found the last member of the enumeration rounds 12-14 and
31 built: receiverTaskRecords was cleared only by disconnect(). The crash
path doesn't clear it, the connect() failure catch doesn't, and connect()
never reset it — so a record created in one session survived into the next
connect() on the same instance, and `tasks/list` is answered from that map.
A new server would be told about a task it never created.

Reachable in web (the only client with receiverTasks): a task-augmented
sampling/createMessage arriving in the handshake window creates a record;
if that connect then fails with a 401, App.tsx retries connect() on the
same instance.

Cleared at the top of connect() rather than only on the crash path — the
auth-recovery retry means ending a session isn't the only way a new one
begins, and starting clean covers every route in. disconnect() keeps its
clear via the same extracted helper.

Pre-existing — the crash path never cleared these — but the handshake
window this PR opened is what lets a receiver task exist before connect
resolves, and this was the one member left outside the invariant the PR
documented. Test verified load-bearing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): reset all session-scoped state on connect, not just receiver tasks (#1797)

Round-40 review: receiverTaskRecords was one of five collections cleared
only by disconnect(). Two of the other four have real symptoms on the same
crash-then-reconnect path:

- subscribedResources — the modern subscribeToResource early-returns on a
  uri already in the set, so after a reconnect the user's Subscribe click
  silently sends nothing to the new server while the UI keeps listing it.
- cancelledTaskIds — a leftover id mislabels a *new* task sharing it as
  cancelled rather than failed, and server task ids are often short.

taskInputAbortControllers leaked un-aborted controllers.

modernLogLevel had the opposite asymmetry: disconnect() cleared it so it
couldn't leak (#1629), but nothing restored it, so a reconnect after an
explicit disconnect silently lost the user's configured level while a
reconnect after a crash kept a mid-session override. It is now recomputed
from serverSettings the way the constructor does, so both routes agree.

clearReceiverTasks became resetSessionState, called from the same place.

Tests cover the two symptomatic siblings and now assert receiver tasks
through the `tasks/list` handler — what a server actually sees, and the
symptom itself — which also removed the unjustified `as unknown as` the
previous commit added. The remaining cast is justified in place, since
cancelledTaskIds has no public reader.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(web): re-seed the Logs control when the client re-seeds its own level (#1797)

Round-41 review caught a consequence of the last commit. `resetSessionState`
restores the client's modern log level from the server setting at connect;
`resetSessionScopedUiState` still blanked the web control to null on every
disconnect. On the one path that reconnects the *same* instance —
auth recovery — the control then read Off while every modern request carried
`_meta` logLevel "debug", the default. A tool whose job is showing what you
send should not disagree with itself about what it sent.

The control now re-seeds from the active server's settings exactly as
setupClientForServer does, instead of blanking.

Also from review:
- Added the tests the restore never had, covering both halves: a mid-session
  override does not survive a reconnect, and a disconnect no longer drops the
  configured level (the #1629 half, and the actual behaviour change).
- resetSessionState's doc claimed "every piece of state scoped to one
  connection", which invites assuming membership rather than checking it.
  Now states the rule: state a new session would misread; what only needs
  settling on the way out stays with the teardown paths.
- Header: session-scoping paragraph moved below the outbound one to match
  test order, and it now names all five members rather than three.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* refactor(core): one derivation for the modern log level (#1797)

Round-42 review: the configured level was computed independently in four
places — twice in InspectorClient (constructor, resetSessionState) and twice
in App.tsx (the seed and the re-seed). The client and the Logs control
agreed only because four sites happened to compute the same expression, and
any drift reproduces exactly the symptom the previous commit fixed: the
control reading one level while every modern request stamps another.

Extracted resolveModernLogLevel into core/mcp/types.ts beside
DEFAULT_MODERN_LOG_LEVEL; all four call sites use it, with the web mapping
undefined→null at its own boundary (display, not a second derivation).

Also from review:
- disconnect()'s comment still credited itself with preventing the #1629
  leak, which resetSessionState now prevents. It says what the line does
  now — read "not opted in" while disconnected — and notes the web control
  deliberately shows the configured level in that window.
- resetSessionState's doc claimed an un-aborted taskInputAbortControllers
  entry "leaks a paused poll loop". Both registration sites release in a
  finally, so nothing leaks permanently; the abort closes the window
  between a crash and the unwind. Softened, and it now has the test it
  lacked — the only member of the five without one.
- Noted in App.tsx that the re-seed depends on activeServerIdRef still
  holding the outgoing id (it syncs in a passive effect), so an eager clear
  would silently drop it to the default.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): reset the subscription stream state with the set it derives from (#1797)

Round-43 review: resetSessionState cleared subscribedResources but left
modernStreamState, so a crash-then-reconnect on the same instance held an
empty set alongside `{ active: true }` — a combination the rest of the file
treats as impossible, since onModernSubscriptionClosed and
onModernReconnectFailed both compute `active` from `subscribedResources.size
> 0`, and the comment at :4712 asserts a terminal drop clears both. No
symptom today only because the UI mirror resets itself independently, in
another file — which is the arrangement this PR has spent its rounds
removing. Clearing it here also announces the reset; that set's every other
mutation dispatches.

Also from review:
- The web re-seed treated "no server found" as the default level rather
  than Off, because resolveModernLogLevel returns the default for absent
  *settings*. Reachable via a second disconnect after a crash, and via
  removing the active server. Now distinguishes the two.
- Converged the two injectRequest copies: withTimeout takes an optional
  onTimeout, so both drop their waiter on the timeout path. The newer copy
  had lost exactly the cleanup that was round 33's reason for leaving the
  original alone.

Test seeds the stream state a live subscription would have left; verified
load-bearing (the earlier version passed either way, since the fixture
never activates a stream).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(web,core): correct the re-seed branch; share the subscription-stream reset (#1797)

Round-44 review. My round-43 fix traded one wrong branch for another: it
read `?.settings`, which is undefined both when no server matched *and*
when the server has no settings node — and the second is the common case
(a hand-written mcp.json entry never opened in Server Settings). Those
servers showed Debug while connected and Off after disconnect, which is
exactly the client/UI disagreement rounds 41-42 removed, with no
modernLogLevelChange event to reconcile it. Now branches on the server.

Worth noting no test would have caught it: App.tsx is a documented
exclusion from the coverage gate.

Also from review:
- resetSessionState cleared subscribedResources without announcing it,
  two lines below a comment arguing that every other mutation of that set
  dispatches. And it took two statements of a six-statement cluster
  disconnect() clears together — leaving modernReconnectAttempts (a new
  session's first drop would back off as if it were the old one's nth),
  modernListenGeneration (the bump that makes an in-flight re-listen bail),
  and a stale modernSubscription. One resetSubscriptionStream helper now
  serves both, announcing both axes; disconnect() keeps only the live
  stream's best-effort close. That also removed the file's one assignment
  to modernStreamState that bypassed its setter.
- The stream-state test pinned the value, not the dispatch — the half the
  UI actually tracks. Now asserts both; verified against a bare field
  assignment.
- onModernSubscriptionClosed's comment claimed the disconnect reset always
  clears the set; on a crash it doesn't until the next connect. Says so.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-45 — reattach the orphaned doc, order the announcements (#1797)

Extracting resetSubscriptionStream last round inserted it *and its doc*
between resetSessionState's doc and resetSessionState — so two doc blocks
stacked, the new helper took the nearest, and the 23-line block explaining
each member's symptom attached to nothing. Dead text where it sat, and the
most load-bearing comment in the batch. Moved, not reworded.

That is round 32's finding in production code, from the same cause:
inserting anything between a doc block and its method is a move that needs
checking, prose or code.

Also from review:
- resetSubscriptionStream announced the cleared set before updating the
  stream state derived from it, so a listener in between saw an empty set
  with an `active` stream — the combination the helper exists to prevent,
  exposed by its own dispatches. Both fields move first, then both are
  announced. The onModernSubscriptionClosed comment now says that window
  is never observable, which is newly true.
- The test header called the log level "cleared"; it is re-seeded, which is
  the #1629 half of the test twenty lines below. Says "reset", with the
  distinction spelled out, and the paragraph reflowed in one pass.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* fix(core): close the listen stream the connect-path reset drops (#1797)

Round-46 review: resetSubscriptionStream's doc claimed disconnect() is the
only caller with a stream worth closing, and the helper did a bare
`modernSubscription = null`. Not guaranteed on the connect path — an
`onerror` without an `onclose` leaves the transport up, connect() reuses
it, and the reset then drops the last reference to a stream still open on
the server. Nothing can close it afterwards: the `closed` handler bails on
the bumped generation, and `closed` never resolves for a live stream.
Before the extraction the surviving reference was eventually closed by
refreshModernSubscription as `previous`, so this was newly unclosable.

The helper now closes it itself, best-effort, after the dispatches so the
round-45 ordering is unaffected; disconnect() drops its two hand-rolled
lines.

Also from review:
- The session test pinned the subscription set's value but not its
  dispatch — the half the UI tracks, and the gap round 43 closed for the
  stream axis one line away. Both now asserted; verified load-bearing.
- resetSessionState's doc said disconnect() "clears all of this", which is
  true by duplication for two of the five members; it now says a sixth has
  to be added in both places. And "the teardown paths" handle the in-flight
  tool call only on the disconnect route — on a crash it is callTool's own
  finally. Named.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-47 — fix the doc's count, catch the closed-promise chain (#1797)

- resetSessionState's doc said "two members through the same helpers, the
  other two hand-rolled" for a body with five. It is two and three — and
  the member the enumeration dropped is the one that is *paired* rather
  than duplicated: modernLogLevel is re-derived here and blanked in
  disconnect(), deliberately. Both corrected.
- `subscription.closed.then(...)` had no rejection handler, unlike every
  other promise around that stream. Newly reachable: before the last
  commit a connect-path reset dropped the reference with `closed`
  permanently pending, so the chain never settled at all; closing the
  stream is what makes it settle. Added, with the Node-terminates reasoning
  the file already applies to payloadPromise.
- The listen-stream test exercised transport reuse without asserting it —
  the half that makes "still open on the server" true. Counts factory calls
  now, so the premise fails loudly if a future change recreates the
  transport rather than silently ceasing to apply.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-48 — scope the catch, guard the close, index the test (#1797)

- The .catch comment claimed the connect-path close made a *rejecting*
  `closed` reachable. It doesn't: closing resolves it. What that close newly
  reaches is the handler running at all, where the reference used to be
  dropped with `closed` pending forever. And chaining after `.then` also
  swallowed handler throws — silently abandoning a re-listen on the path
  whose job is recovering a dropped stream. Now the second argument to
  `.then`, scoped to the rejection, with the comment saying which half is
  which.
- `closing?.close()` reaches into third-party code from `disconnect()`'s
  straight-line teardown, none of which is inside a `try` — a synchronous
  throw would skip the raw-wire rejects, the task aborts, the receiver-task
  clear and nine dispatches, silently, since most callers catch a
  disconnect(). Best-effort now against both failure modes.
- Header indexes the listen-stream test: same category, but a release
  obligation rather than a misread one.
- Its comment described the generation guard, which the stub can't exercise;
  marked as production behaviour.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011TrCvpunxToe7qnppk6zwr

* review: round-49 — pin the best-effort close, unorphan the doc (#1797)

Round 48 made `resetSubscriptionStream`'s close best-effort against both a
rejected promise and a synchronous throw, but nothing exercised either arm:
both `modernSubscription` stubs in the tree resolve. On the `disconnect()`
path an escaping failure would silently skip the raw-wire rejects, the paused
task-input aborts, the tool-call abort and `clearReceiverTasks()` — the
findings rounds 13 and 30 closed, re-opened at once with a green suite. Two
table-driven cases now seed a `close()` that throws and one that rejects,
and assert teardown continued past it.

Also: the `.then` comment gave opposite verdicts on one mechanism (an
unhandled rejection is named unacceptable, then chosen for a handler throw) —
reworded to say the handler cannot throw today and why the shape is
defensive; and `refreshModernSubscription`'s doc block, orphaned two methods
up since before this branch, moved onto the method it describes.

Closes #1797

* review: round-50 — sweep the queues start-clean, unify the close (#1797)

`resetSessionState`'s doc excluded the peer-request queues and the raw-wire
map because "the teardown paths handle them" — true of the paths that run.
An `onerror` without an `onclose` runs none of them: it flips status to
"error" and leaves `baseTransport` cached, so a `connect()` on the same
instance reuses a live transport. That is the route the round-46 stream close
was built on, and it strands these two the same way — the web pending-request
modal is derived from the queue length with no status gate, so it outlives
the session, and answering it writes a response for the old request id onto
the new connection. Both are now swept start-clean beside the reset (both
helpers are idempotent, so the routes that already ran them are unaffected),
the end-clean clears stay put for the `disconnect`-event consumer, and both
docs say which is which.

Also folds the three subscription `close()` sites onto one
`closeSubscriptionBestEffort` helper, so all three absorb a synchronous throw
as well as a rejection — at `refreshModernSubscription`'s first site the
reference is already dropped, so a throw there both leaks a live stream and
aborts the refresh before its replacement is opened.

Closes #1797

* review: round-51 — pin the sweep's ordering, name the category (#1797)

The connect-start sweep must sit after `resetSessionState()`, and the two
calls read as independent. Cancelling a task-augmented peer request settles
it synchronously into the record callback, which ends in `upsertReceiverTask`
— a no-op only because `clearReceiverTasks()` just emptied the map. Hoisted,
it would emit a `notifications/tasks/status` for the outgoing session's task
onto the transport the connect is about to reuse. Stated at the call and
pinned by a test (which fails on the hoist).

Adding that third caller also made five docs stale, all describing the old
set by count or as "teardown" — the class round 23 diagnosed. All five now
name the category: every route out, plus the top of `connect()` as a backstop
for the one route in that settles nothing.

And the site where round 50's fold actually changed behaviour —
`refreshModernSubscription`'s first close, where the reference is already
dropped and a `.catch()` never caught a synchronous throw — is now tested
from the public surface (a re-list over a poisoned stream), table-driven over
both arms. Verified to fail on the pre-fold form.

Closes #1797

* review: round-52 — say what the sweep prevents, scope the close doc (#1797)

The sweep's comment named as its harm the exact write the sweep performs: on
this route the SDK's transport is still live, so cancelling a queued peer
request emits a response for the old id immediately — which is right, and is
the settle-don't-discard rule, at the best available moment. As written it
read as an argument against emitting the frame, inviting the clear-without-
settling regression rounds 24–25 removed. It now names the real hazard: a
*user*-authored answer landing arbitrarily later, past the re-handshake.

`closeSubscriptionBestEffort`'s "at each site" held at two of three — the
superseded-generation discard stored nothing and has nothing following it,
so its escaping failure would only reject an already-superseded
`subscribeToResource`. Scoped, still wrapped.

Also moves the `disconnect()`-side close pair next to its `connect()`-side
twin, and states which axis the file's ordering follows, since route and
category both describe it and cut differently.

Closes #1797

* review: round-53 — give each close site its real harm, pin it (#1797)

The doc grouped `resetSubscriptionStream`'s close with the "takes the
caller's remaining work with it" sites. It can't: the call is `void`-ed onto
an `async` helper, so even a synchronous `close()` throw becomes a dropped
rejection — `disconnect()`'s teardown runs regardless. The harm there is an
*unhandled* rejection, which this PR already established (the payloadPromise
fix) is the process-fatal class in Node — so the one site with the severe
failure mode was documented as having the mild one. Each site now carries its
own consequence, and the local comment no longer gives two reasons that
cancel each other.

The test had the same gap: both its assertions hold with the helper's
try/catch deleted. It now also asserts no unhandled rejection fired, which
does fail without the guard (verified on both arms); the teardown assertions
stay, since they still catch unwrapping the call to a bare `close()`.

Also names the two back-references the round-52 move left positional, and
softens the "on the wire until dropCachedTransport()" claim — that drop is
conditional and never runs on stdio.

Closes #1797

* review: round-54 — the mildest site isn't mild from every caller (#1797)

`refreshModernSubscription` has three callers, and the superseded-generation
discard's failure reaches all of them. From `unsubscribeFromResource` — which
deliberately keeps the removal when a re-listen fails — it surfaces "Failed
to unsubscribe" for an unsubscribe that actually stuck, which is worse than
the consequence the doc assigned to the site it called mildest. The re-listen
bullet had the mirror gap: on the reconnect caller the escape is absorbed
into the backoff run, not a set left with no stream. Both now name their
callers, and the generation-bump claim is softened to what it proves (a newer
refresh *started*).

Test: the `unhandledRejection` listener is process-wide, so the assertion now
filters to this fixture's own reason rather than failing on a rejection some
other test left pending; and it is registered inside the `try` whose `finally`
removes it, so a throw in the setup can't leak it into the rest of the file.
Re-verified the filtered form still fails on both arms with the helper's
try/catch removed.

Closes #1797

* fix(core): don't roll back a subscribe a newer refresh superseded (#1797)

`subscribeToResource`'s rollback assumes what its comment says — that the
server filter is unchanged — which is exactly what supersession falsifies.
The newer refresh built its filter from the set *including* this URI, so on
success the server honors it; rolling back leaves the set missing a URI the
live stream carries (the UI showing it unsubscribed while its
resources/updated keep arriving) and, if it was the only one, an empty set
with an active stream — the combination `resetSubscriptionStream` exists to
prevent, reached from the other end.

Reachable without any close() failure: a rejecting `listen()` propagates the
same way, which a user subscribing while the reconnect timer re-lists — i.e.
exactly when the server is flaky — can produce. The rollback is now gated on
the generation not having advanced past this call's own bump; the error still
reaches the caller either way. Test drives two overlapping subscribes with
the first `listen()` rejecting, and fails without the gate.

The doc bullet that called this the mild site is corrected with it: both
user-initiated callers report a failure that did not happen, in mirrored
ways. Also gives the two close-failure arms distinct reasons so the
unhandled-rejection filter can exclude the sibling arm as well as a foreign
rejection.

Closes #1797

* fix(core): reconcile the stream badge when a re-listen this call owned fails

The supersession gate left the both-fail case stuck: two overlapping
subscribes whose listens both reject leave the superseded URI in the set (its
rollback correctly skipped) while the state keeps the optimistic
"connecting" — no stream, no reconnect armed (neither onModernSubscriptionClosed
nor onModernReconnectFailed ran), so the badge never changes and no
resources/updated ever arrive. That is the caveat this file already wrote
down for the neighbouring case — the bump proves a newer refresh *started* —
applied to the gate itself.

Fixed in the branch that knows the answer: the call that still owns the
re-listen reconciles the state instead of only handling an emptied set,
reusing the "ended" badge onModernSubscriptionClosed already reports for
"stream gone, URIs still subscribed". unsubscribeFromResource gets the same
treatment — it rolls nothing back by design, but its failed re-listen left
the badge reading Listening over no stream.

Also: the gate's comment named one of the two things that bump the
generation (resetSubscriptionStream also does, from disconnect and the
start-clean reset) and cross-referenced the wrong invariant; both corrected,
and `<=` tightened to `===`, which is what the monotonic synchronous bump
actually guarantees.

Closes #1797

* fix(core): order the subscription writes, retry instead of stranding

Two sites emptied the subscription set and announced it before the stream
state caught up — the last-URI rollback in subscribeToResource's catch, and
(pre-existing) the ordinary last-URI unsubscribe, which dispatches a
round-trip before the re-listen sets INACTIVE. Both exposed an empty set with
an active stream: the pair resetSubscriptionStream orders its own writes to
prevent, and which three comments in this branch now cite. State before the
announce at both, asserted from the consumer's side.

And the reconcile added last round settled for an honest but dead badge: it
was the only route to "stream gone, URIs live" that had made no attempt at
all, over subscriptions the server may never have honored, recoverable only
by an Unsubscribe/Subscribe toggle (a fresh Subscribe early-returns). It now
hands them to the reconnect machinery, which already fits — base delay after
a user-initiated refresh, bails on a terminal status or an emptied set, and
lands on the same "ended" badge past the cap. That also removes the
provably-dead null check the reconcile carried.

Closes #1797

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 11:32:23 -04:00
Cliff Hall
cea22d86b8
feat(web): enforce localhost-only binding; expand loopback origin allow-list (#1796)
Closes #1795.

Enforce localhost-only binding in code (the "never 0.0.0.0" rule was only a spec note): refuse an all-interfaces HOST — across every spelling the OS binds as the wildcard (inet_aton decimal/octal/hex, IPv6, IPv4-mapped, zone-scoped, IDNA/Unicode) — unless DANGEROUSLY_BIND_ALL_INTERFACES=true (Docker's sanctioned opt-in). Fixes the reported stdio-connect 403 by expanding the default loopback origin allow-list to all three interchangeable forms.

Hardening surfaced across an extended review: closes an IDNA/fullwidth wildcard bypass, a blank-ALLOWED_ORIGINS fail-open, and the CLI/TUI OAuth-callback wildcard bind (loopback-only now, RFC 8252); canonicalizes the origin allow-list the way a browser does; derives frame-ancestors from the real embedder list (IPv6-literal exclusion verified in headless Chromium); strictPort on all three bind points; and preserves the CLI exit-code map + JSON envelope through the mcp-inspector --cli launcher path. Shared host normalization lives in core/node/hostUrl.ts. Docs + tests + smokes throughout.

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-07-26 22:15:10 -04:00
Bob Dickinson
33e88eac9f
CLI: catalog listing, auth flags, and OAuth browser UX (#1782)
* feat(cli): catalog listing, auth flags, and OAuth browser UX

Add servers/list and servers/show, --relogin / --stored-auth-only, browser
OAuth navigation with OSC 8 links, and extract method handlers under
clients/cli/src/handlers. Tracks #1781.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): address #1782 review — relogin clear, stored-auth-only, docs

Clear both raw and normalized OAuth keys on --relogin; check the shared
store before bailing under --stored-auth-only mid-session; restore the
tests README link target; document servers/show redaction limits; keep
mcpi groundwork with TODO(#1432) markers.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): gate OAuth browser open and harden #1782 review follow-ups

Arm auto-open only for CLI-owned interactive OAuth, honor MCP_AUTO_OPEN_ENABLED,
move --relogin clear after validation, skip keychain on servers/list, and cover
secret redaction after rehydrate.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): silence disarmed OAuth URLs and round-3 review nits

Suppress authorize URL print when navigation is disarmed or
--stored-auth-only; document MCP_AUTO_OPEN_ENABLED; redact Cookie/auth
headers; keep servers/show unit tests off the OS keychain.

Co-authored-by: Cursor <cursoragent@cursor.com>

* test(cli): cover withArmedAutoOpen for the ≥90 branch gate

CI failed on cliOAuth.ts branch coverage after the auto-open arming
helper landed; exercise the armed path through runCliInteractiveOAuth.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): mid-RPC unauthorized recovery and clear round-4 nits

Mirror connect's UnauthorizedError path in withCliAuthRecoveryRetry, let
MCP_AUTO_OPEN_ENABLED=true force open off-TTY, mock open-url in the
in-process runner, reject --relogin on catalog methods, restore the
__tests__ README inventory, and narrow OAuth helpers to structural client types.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): reconnect after mid-RPC OAuth and finish round-5 nits

Reconnect before retrying after unauthorized recovery, guard non-OAuth
configs, decouple forceAutoOpen, move open-url mock to vitest setupFiles,
and reject --relogin with stored-auth short-circuits.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): fail fast on non-TTY interactive OAuth and round-6 nits

Skip interactive OAuth without a TTY unless MCP_AUTO_OPEN_ENABLED=true;
document --stored-auth-only for CI; redact settings.metadata; reject
--relogin for stdio; clarify AuthRecoveryRequired reconnect comments.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): admit interactive OAuth when stdin is a TTY (round-7)

Gate on stdin||stderr so `2>&1 | tee` still works; fold confirm/auto-open/
TTY into CliOAuthConnectOptions; rename authRequiredFailure; document
MCP_AUTO_OPEN_ENABLED=true as non-TTY admit.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): fail fast on step-up without stdin (round-8)

Decline [y/N] on readline EOF/close, require a stdin TTY for the default
step-up confirmer (force-open admit is not enough), document stderr-only
browser auto-open vs stdin||stderr flow admit, and drop the alias wrapper.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): allow piped step-up answers; bound silent pipes (round-9)

Drop the hard stdin-TTY gate that broke `echo y | …`. Keep EOF decline and
add a short non-TTY timeout so an open pipe that never writes cannot hang.
Clarify isTTY as admit-only; extract the readline mock factory.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): keep partial piped step-up answers (round-10)

Capture readline `line` before close so `printf y` without a newline is
not treated as decline; timeout is auth_required with a distinct message;
document the 5s bound and post-confirm callback wait; pin the TTY no-timeout arm.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(cli): tighten step-up timeout messaging and TTY test (round-11)

Make the TTY no-timeout assertion use a settled flag (the Promise.race
check was vacuous), say "timed out" instead of "declined" on the pipe
bound, and document that piped answers need a newline or stdin close.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-26 16:55:25 -04:00
Cliff Hall
4defa32ac6
chore: close a batch of quality-gate & tidy gaps (#1785 #1787 #1789 #1790 #1767) (#1792)
* chore: close a batch of quality-gate & tidy gaps (#1785 #1787 #1789 #1790 #1767)

Bundles five small, related tidy/gate items into one PR:

- #1785: delete the dead src/types/navigation.ts InspectorTab (0 importers;
  duplicated/drifted from utils/inspectorTabs InspectorTabId). src/types/
  now holds only ambient .d.ts stubs.
- #1787: add src/hooks/** to the web coverage `include` (it was silently
  outside the ≥90 gate) and add tests for the two untested hooks,
  useServerJsonImport and useImportClientConfig, bringing every hook to
  ≥90 on lines/statements/functions/branches.
- #1789: widen clients/{cli,tui,launcher} format/format:check to their
  top-level configs; add root format:shared / format:check:shared covering
  test-servers/src/**, vitest.shared.mts, and the repo-root eslint.config.js.
- #1790: pin prettier to an exact version (3.8.4, dropping the ^3.8.1
  caret) in all five package.json files so the format gate's verdict can't
  shift with an in-range patch bump; lockfiles synced.
- #1767: its root-file format+lint gap is closed here (format:shared +
  a new lint:shared via a second files block in the root eslint.config.js;
  web/server/ was already gated in #1788). Its larger cli/tui __tests__
  typecheck piece (76 type errors) is split out to #1791.

Prettier-normalized the newly-covered files (pure formatting). No runtime
behavior change. `npm run ci` green.

Closes #1785
Closes #1787
Closes #1789
Closes #1790
Closes #1767

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore: address PR #1792 review findings

- #1789 gap: widen clients/web format to include .storybook and clients/
  launcher format to include scripts/; reformat the 3 .storybook files
  (were non-conforming under the pinned prettier 3.8.4). Audited all 885
  tracked source files — now fully prettier-clean.
- Export VALIDATE_DEBOUNCE_MS / COLLAPSE_DELAY_MS / HIGHLIGHT_DURATION_MS
  from useServerJsonImport and use them in the test instead of hardcoded
  300/1000/250 (so a tuned constant can't silently desync the test).
- Assert the symmetric renameErrors["alpha"] alongside ["beta"] so a
  one-directional collision-check regression fails.
- Comment the blank-rename test as exercising a UI-unreachable defensive
  branch (canImport gates submit).
- Un-stale the two specification/v2_ux_interfaces_plan.md references to the
  now-removed navigation.ts InspectorTab.

npm run ci green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* docs: sync AGENTS.md format-surface description with the widened globs (#1792 review r2)

1ce3b64 added .storybook to clients/web's format glob and scripts/ to
clients/launcher's, but AGENTS.md:222 still described the pre-fix scope.
Bring it in line and note the non-recursive top-level glob is why nested
dirs are named explicitly. Docs only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore: handle PR #1792 round-3 follow-ups in-place (format-coverage guard, uniform globs, theme gate)

Rather than defer these to tickets, fold them into this PR:

- Obs 2: widen every client + root format glob to a uniform
  *.{ts,tsx,mts,cts,js,jsx,mjs,cjs} so a future .mts/.cjs/.tsx top-level
  file can't silently slip the gate.
- Obs 1: add scripts/verify-format-coverage.mjs (wired into `validate`) —
  it parses the format:check globs out of every package.json, enumerates
  all tracked source files, and fails listing any not covered by a glob.
  The durable, standing version of #1789's one-shot audit; negative-tested.
- Obs 3: bring src/theme/** under the coverage gate (21/23 files were
  already ≥90 transitively; add Paper.test.tsx for the one laggard,
  Paper.ts). src/App.tsx (~4.5k lines, ~42% branches) is converted from a
  silent omission into an explicit, documented exclusion (comment on the
  coverage `include` + AGENTS.md) — gating it is a dedicated effort, not a
  whitelist tweak.

npm run ci green (the new guard reports 885/885 tracked source files gated).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore: address PR #1792 round-4 findings (guard hardening, docs, exclusion list)

- Harden verify-format-coverage: only harvest format:check globs from
  scripts transitively reachable from `validate` (via npm run refs), so an
  unwired/renamed format:check no longer counts as coverage. Negative-tested
  — renaming clients/web format:check to an unreferenced name now fails the
  guard (627 files flagged) instead of passing.
- Name src/main.tsx and src/index.ts (browser + bin bootstraps) alongside
  src/App.tsx in the coverage-include comment and AGENTS.md, so the
  documented exclusion list is complete rather than claiming App.tsx is the
  only one.
- Doc sync: document verify:format-coverage (AGENTS.md + README script table
  + scripts/ layout line), fix the `validate` ordering (verify:format-
  coverage now runs before validate:core) in AGENTS.md and README, and
  update the quoted globs to the uniform *.{ts,tsx,mts,cts,js,jsx,mjs,cjs} /
  test-servers *.{ts,tsx,mts,cts}.

npm run ci green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* chore: address PR #1792 round-5 findings (airtight guard + doc/config sync)

- verify-format-coverage: assert the root `validate` chain invokes each
  client's `validate` (cd <dir> && npm run validate), closing the last
  reachability edge — a client dropped from the root chain now fails the
  guard even though its own globs still exist. Negative-tested.
- eslint.config.js: widen the shared `files` block to
  test-servers/src/**/*.{ts,tsx,mts,cts} to match the widened lint:shared
  glob, so a future .mts/.cts there is lint-gated, not just prettier-gated.
- AGENTS.md: scope the "uniform extension set" claim to client globs
  (core stays {ts,tsx}, shared {ts,tsx,mts,cts}), with verify:format-coverage
  as the backstop — removing the self-contradiction with the line below.

npm run ci green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-26 10:43:11 -04:00
Cliff Hall
373f346e5f
chore: close quality-gate coverage gaps (#1689) (#1766)
Some checks failed
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Closes #1689. Typecheck cli/tui src, add a core/ format+lint gate, and gate core/json + core/client coverage. See PR #1766 for the full review history.
2026-07-24 17:20:12 -04:00
Cliff Hall
e70a11360c
Tools: x-mcp-header annotation tooling + -32602 unknown-tool rendering (#1632) (#1735)
* Tools: x-mcp-header annotation tooling + -32602 unknown-tool rendering (#1632)

Card 9/10 of the SDK-v2 + New Spec stack. Adds SEP-2243 `x-mcp-header`
tooling to the Tools tab and adjusts result rendering for SDK v2's
unknown-tool behavior, and bumps the SDK to 2.0.0-beta.5.

- **`core/json/xMcpHeader.ts`**: a faithful port of the SDK's (non-public)
  `scanXMcpHeaderDeclarations` — validates every SEP-2243 constraint
  (primitive types incl. `number`, RFC 9110 token, case-insensitive
  uniqueness, statically-reachable `properties`-only chain) and derives the
  mirrored `Mcp-Param-{Name}` params for a kept tool.

- **Excluded tools**: the SDK silently drops tools with invalid annotations
  from `tools/list`. InspectorClient now re-lists the RAW (unfiltered) list
  and scans it to recompute the excluded set with reasons — gated to the
  modern non-stdio era (matching the SDK's gate), recomputed on every
  aggregate refresh, surfaced via a new `excludedToolsChange` event +
  `getExcludedTools()` and `useInspectorClient().excludedTools`. The Tools
  sidebar lists them struck-through under an "Excluded (SEP-2243)" divider
  with the reason on hover.

- **Mirrored args**: ToolDetailPanel shows a "Mirrored request headers"
  section listing each arg → `Mcp-Param-{Name}` (with the browser-omits note).

- **-32602 rendering**: SDK v2 rejects an unknown-tool call with `-32602`
  instead of an `isError` result, which previously rendered nothing. New
  ToolCallErrorPanel renders a thrown tool-call error, with a targeted
  "Unknown Tool" hint for `-32602`.

Adds unit + Storybook + integration coverage (a real modern server with an
invalid-header tool fixture) for every path. `npm run ci`-equivalent checks
green.

Closes #1632

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* test-servers: x-mcp-header modern showcase config + preset (#1632)

Register the `invalid_header_tool` fixture as a preset and add
`xmcpheader-modern-http.json` — a modern HTTP showcase serving echo, a
valid-header `get_weather`, and the invalid-header tool — so the Tools-tab
x-mcp-header tooling (mirrored headers, excluded-tools surface, -32602
rendering) can be exercised manually. Documented in the README alongside the
other per-SEP showcase configs. Smoke-tested end to end in the web client.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* docs: add #1632 proof screenshots to pr-screenshots

End-to-end web-client verification of the x-mcp-header Tools tooling against
the modern showcase server: excluded-tools surface + reason, mirrored-headers
section, and the -32602 unknown-tool error panel.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* Respond to review: disambiguate -32602, doc/search nits (#1632)

Addresses the review on PR #1735:

1. -32602 "Unknown Tool" mislabel: `-32602` is generic Invalid params, so a
   known tool called with bad arguments hit the same code and rendered under
   the definitive "Unknown Tool" heading. Replace `isUnknownToolError` with
   `classifyToolCallError(code, message)` → "unknown-tool" only when the
   message names it (not found / unknown tool / …), else "invalid-params"
   (new "Invalid Parameters" heading + schema hint), else "generic".

2. Double pagination walk: expand the `listAllTools` comment to document that
   the excluded-tools recompute is a deliberately un-cached second raw walk
   (doubles list round-trips on modern non-stdio, runs even on a cache-served
   aggregate) — accepted for a debugging tool, no-op on legacy/stdio.

3. Doc nit: `scanXMcpHeaderDeclarations` no longer claims to visit "$ref
   targets" — reworded to note `$ref` is never followed (refs resolve into the
   unreachable `$defs` body).

4. Search nit: the excluded-list filter now matches name AND title, matching
   the main tools filter.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* Tighten unknown-tool matcher to be tool-scoped (#1632 re-review nit)

The re-review noted the -32602 disambiguation was symmetric: broad markers
("does not exist", "unrecognized") could inversely mislabel a genuine
invalid-params message (e.g. "property 'region' does not exist") as "Unknown
Tool". Scope the not-found/does-not-exist family to require the word "tool" in
the same clause (matching the SDK's "Tool <name> not found"); keep "unknown
tool" / "no such tool" as standalone unambiguous markers. Adds a
tool-less-"does not exist" test asserting it classifies as invalid-params.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* Add trigger_invalid_params showcase tool + Invalid Parameters screenshot (#1632)

Adds a `trigger_invalid_params` spec-error trigger to the modern showcase
server: the injector answers its `tools/call` with a real `-32602 Invalid
params` JSON-RPC error whose message does NOT name an unknown tool. This lets
the "Invalid Parameters" branch of the tool-call error panel (added in the
review response) be exercised live, distinct from the unknown-tool `-32602`.

- `SPEC_ERROR_TRIGGERS` gains the `trigger_invalid_params` entry (HTTP 200,
  in-band -32602) + preset registration.
- Enable `injectSpecErrors` on `xmcpheader-modern-http.json` and add the tool.
- README + pr-screenshots README document it; adds the live "Invalid
  Parameters" proof screenshot.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-22 11:42:54 -04:00
Bob Dickinson
a71e6d2012
Auth hardening CI gaps + SDK consolidation: EMA leg 2 / scopes (#1527) (#1725)
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Close #1527 acceptance gaps with automated tests (SEP-2468 iss, SEP-2207 offline_access, SEP-2351 discovery shapes, SEP-2352 AS-migration, EraNegotiationFailed→401 unwrap); lean EMA leg 2 and scope helpers on the v2 SDK; drop deprecated TS baseUrl. Reviewed LGTM.
2026-07-19 22:36:21 -04:00
Cliff Hall
e026051b47
Era-aware connection model & capability gating (#1626) (#1697)
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* Era-aware connection model & capability gating (#1626)

Make protocol era (SEP §7.8) a first-class, per-server connection dimension,
orthogonal to the transport type, and drive the SDK Client's versionNegotiation
from it.

Config
- Add `ServerProtocolEra` ("legacy" | "auto" | "modern"), `DEFAULT_PROTOCOL_ERA`
  (legacy, per the SDK's don't-auto-probe guidance), `MODERN_PROTOCOL_VERSION`,
  and `eraToVersionNegotiation()` in core/mcp/types.ts.
- Persist `protocolEra` on `StoredMCPServer` / `InspectorServerSettings`,
  round-tripping through serverList.ts (omitting the default on disk) and the
  `/api/servers` read + write validators.

InspectorClient / state
- Thread `versionNegotiation` through `InspectorClientOptions` (default legacy),
  replacing the hardcoded pin. After connect, read `getProtocolEra()` /
  `getDiscoverResult()` / `getNegotiatedProtocolVersion()`, expose them via
  getters, dispatch `protocolEraChange` / `discoverResultChange`, and clear on
  disconnect. `useInspectorClient` surfaces `protocolEra` / `discoverResult`.

Web UI
- ServerSettingsForm: a Protocol Era selector bound to the per-server setting.
- ConnectionInfoContent: era-aware — Era badge, Session ("Sessionless" on
  modern), and a Discovery section (supported versions + extensions) from the
  `server/discover` result.

CLI/TUI also map the mcp.json `protocolEra` into versionNegotiation so the field
applies uniformly. Version negotiation stays fully client-side; modern connect
works over the existing remote tunnel and disconnect is sessionless (the SDK
skips DELETE when there is no session id). Mcp-* header fidelity is left to the
History/Network card.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* Address @claude review: era docstrings, era validation, stdio session label, AGENTS.md rule

- Fix stale docstrings/comments in inspectorClient.ts, useInspectorClient.ts,
  inspectorClientEventTarget.ts, and ConnectionInfoContent.tsx: getProtocolEra()
  returns "legacy" (not undefined) on a plain legacy connect; it is undefined
  only when not connected.
- Validate protocolEra at the storedFieldsToInspectorSettings read boundary
  (new shared isProtocolEra guard) so a hand-edited mcp.json read directly by
  the CLI/TUI drops an unknown era instead of passing it to
  eraToVersionNegotiation. Keeps the exhaustive switch intact.
- ConnectionInfoContent: the Session row is HTTP-only — show "N/A (stdio)" for
  stdio instead of the misleading "Session-based".
- AGENTS.md: add a rule against unjustified `as unknown as` double casts, and
  drop the one such cast introduced in the serverList test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* Address re-review: dedupe isProtocolEra guard in remote server

Replace the local isProtocolEra in remote/node/server.ts with the shared guard
now exported from serverList.ts (already imported here), so the era literal set
lives in one place and can't drift.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-16 23:39:29 -04:00