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3,168 commits

Author SHA1 Message Date
cliffhall
1a271e4931 fix: address Copilot review round 3 — conjunctive keywords, unflattenable allOf, branch inference
- rootUnion: a branch restating a constraint the root states differently is
  declined (keywords at one level are conjunctive and no intersection is
  computed here), while annotations may disagree freely. An `allOf` with a
  member it cannot fold in — JSON Schema's boolean form, or a $ref whose
  constraints are unknown rather than absent — is left intact instead of
  merged-and-stripped, which would turn an unsatisfiable schema into a
  fillable form.
- rootUnion: `declaresAnyFields` counts the raw composition members, so
  `hasInputFields` reports fields for a union the resolver declines and an
  App tool is never auto-invoked with empty arguments.
- SchemaForm: the picker opens on the branch the supplied values identify
  (an App deep link overlays its args, so they can name another branch), and
  a branch switch no longer carries a value the outgoing branch declared —
  the branches may type the same name differently.
- TUI: a base property some branch redeclares is offered in EVERY branch's
  section under that branch's inherited or specialized declaration, so a
  branch that does not redeclare it can still supply a required root
  argument.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 02:01:44 -04:00
cliffhall
84cd0c10f0 fix: address Copilot review round 2 — conjunctive merges, generated-name collisions, CLI branch selection
- rootUnion: a name both the root and a branch declare is now MERGED rather
  than replaced, so a root `minimum` survives a branch `maximum`; a branch
  that contradicts the root on a property's `type` describes an unsatisfiable
  value and is declined outright. Branch offerability also requires that
  `properties` really is an object (a malformed `properties: null` threw)
  and that the member's own `type` admits objects.
- rootUnion: `ownFields` becomes `declaredFields` — a branch commonly
  specializes a root property, and consumers must render the specialization.
- TUI: the generated select and branch prefixes step aside from any name the
  schema itself declares (JSON has no reserved namespace), decode filters them
  by exact name, a branch's specialization renders in its own section, and a
  `const` is rendered as a one-option select whose typed value is restored
  from the schema on submit.
- convertToolParameters: identify the branch from the discriminator constants
  the call supplies; when none identifies one, coerce only names every
  declaring branch types the same way rather than picking an arbitrary branch.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 01:41:17 -04:00
cliffhall
4c338a37e9 fix(web): take the enlarge button out of the tab order
Every string field in a tool or elicitation form carries an enlarge
button in its right section, so tabbing through a form stopped on one
between each pair of fields. Give it tabIndex={-1}, as #1487 did for the
clear button.

That button was deliberately left in the tab order by #2042, on the
grounds that clearing has a keyboard equivalent and enlarging has none.
So give it one: Enter on the focused single-line field enlarges it and
enters the newline. Nothing was listening for that key there — no
consumer renders SchemaForm inside a <form> — and it is the key a user
presses trying to type the newline the input swallows, which is the
failure #2042 exists to fix.

Enter enters the newline rather than only reshaping the field, since
consuming the keystroke leaves the next word running on from the last. A
field already at its maxLength is enlarged without one. Shift+Enter
enlarges too; the Ctrl/Cmd/Alt chords are left free for a consumer to
bind to running the tool. Clicking the button still only enlarges.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 01:13:32 -04:00
cliffhall
a0659b20d1 Merge remote-tracking branch 'origin/v2/fix/2123-root-union-schemas' into v2/fix/2123-root-union-schemas 2026-08-26 01:02:06 -04:00
cliffhall
2782ed75d1 fix: address Copilot review — const precedence, TUI variant model, decline both-keyword unions
- rootUnion: decline a schema carrying BOTH oneOf and anyOf rather than
  reading one and silently dropping the other's constraints.
- SchemaForm: handle `const` before every type dispatch and for every
  constant type, so a numeric/boolean constant, or a schema carrying both
  `const` and `enum`, can no longer offer a forbidden value.
- collectSchemaDefaults / TUI initialValue: `const` outranks `default`,
  which is an annotation a schema may set to something its const rejects.
- convertToolParameters: resolve from the first branch's merged schema, so a
  branch's specialization of a root-declared property is what types the arg.
- TUI: ink-form keys values by field name across the whole form, so two
  branches' `kind` were one field and the later section's initial value
  decided what the earlier submitted. Branch fields now render under prefixed
  names behind a Variant select, and decodeFormValues translates back on
  submit, dropping every branch but the chosen one.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 01:01:54 -04:00
Cliff Hall
67d612a7eb
Merge branch 'v2/main' into v2/fix/2123-root-union-schemas 2026-08-26 00:54:25 -04:00
cliffhall
27b7038a14 Merge remote-tracking branch 'origin/v2/chore/2086-cross-browser-app-smokes' into v2/chore/2086-cross-browser-app-smokes 2026-08-26 00:51:12 -04:00
cliffhall
66b3274fa6 docs(smoke): align the smoke headers with the pre-push gate wiring
The three headers still said the non-Chromium engines were on demand and
that 'nothing runs it for you'. Both became false when Firefox moved into
npm run ci; I updated the README and AGENTS.md for that change and did not
carry it into the files themselves.

Each header now names the three tiers separately rather than collapsing
them into a CI/not-CI binary: GitHub CI is Chromium only, the local
pre-push gate is Chromium and Firefox, and WebKit is on demand.

That distinction is the whole point of the arrangement, so a header that
blurs it is worse than one that is merely out of date.

Addresses Copilot review 5026731741 on #2133.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 00:50:59 -04:00
Cliff Hall
560c0ab4e7
Merge branch 'v2/main' into v2/chore/2086-cross-browser-app-smokes 2026-08-26 00:45:13 -04:00
Cliff Hall
dd67164bea
Merge pull request #2136 from modelcontextprotocol/v2/fix/2110-oauth-path-scoped-discovery
fix(oauth): keep the server's path in the fallback authorization-server URL (#2110)
2026-08-26 00:44:28 -04:00
Cliff Hall
02cba7315a
Merge branch 'v2/main' into v2/fix/2110-oauth-path-scoped-discovery 2026-08-26 00:42:44 -04:00
Cliff Hall
c06dc312af
Merge pull request #2135 from modelcontextprotocol/v2/fix/2134-parsesse-chunk-boundary
fix(core): carry the in-progress SSE frame across chunk boundaries
2026-08-26 00:41:41 -04:00
cliffhall
5933162dd0 fix: render tool schemas with root-level anyOf/oneOf composition
A tool's `inputSchema` may carry composition keywords at its root — the
2026-07-28 revision makes this explicit — but both form builders enumerate
the root's `properties` and nothing else. A schema keeping its fields on
`allOf`/`oneOf`/`anyOf` branches therefore rendered no controls at all: no
branch picker, no fields, not even the raw-JSON fallback a union-typed
*property* falls back to, so the tool could only be called with empty
arguments.

Adds `core/json/rootUnion.ts`, one flattening shared by all three clients so
they cannot drift on which schemas they can render:

- `allOf` is merged unconditionally (conjunctive — there is no choice to
  present), a root `oneOf`/`anyOf` is returned as branches.
- Web `SchemaForm` renders a Variant picker above the fields and prunes the
  outgoing branch's values on a switch, since they are no longer visible and
  would describe a shape the call is not making.
- TUI `schemaToForm` gives each branch its own section with optional fields —
  ink-form is static, and only one alternative applies to a call.
- `convertToolParameters` looks through the branches, so a CLI `--tool-arg`
  is typed by the schema that declares it rather than sent as a string.

Required-field gating asks whether *any* branch is satisfied, which is
selection-independent and never blocks arguments the schema accepts. A
`const` is seeded like a `default` and rendered read-only: it admits exactly
one value, so anything else the user could type produces a rejected call.

Adds a `root-union-schemas-http.json` showcase server.

Closes #2123

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 00:37:43 -04:00
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
99f2a20eb0 style: prettier-format the parseSSE test
Caught by CI's clients/web format:check, not by my local run — I had
formatted core/ and scripts/ but not the web client's src, which is where
the test lives.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 00:23:55 -04:00
cliffhall
7501dad675 ci: put the Firefox smokes in the pre-push gate instead of GitHub CI
Dropping the CI job left cross-engine checking as something you had to
remember to run, which in practice means nobody runs it. This moves it
into npm run ci, so it happens once per push, in front of a human who can
still reason about the change -- rather than once per CI run, on every
branch, to re-derive an answer we already had.

scripts/run-engine-smokes.mjs is what makes that possible cross-platform:
SMOKE_BROWSER has to reach three child processes, and a POSIX VAR=x npm
run prefix does not work under Windows cmd.exe, which npm uses there.
Setting it in the child env from Node does. smoke:web:firefox passes the
engine as an ARGUMENT rather than relying on the ambient variable, so a
stray SMOKE_BROWSER cannot silently redirect the gate to another engine
-- verified: an explicit argument beats it.

It also gives the smoke list one home. It was previously an && chain in
package.json beside a second chain in the workflow, so adding a fourth
smoke meant remembering both. ENGINE_SMOKES is now the list, with a test
pinning its contents and its order -- a smoke going missing is invisible
at runtime, because a shorter list is still a passing run.

Firefox only. WebKit fails the App smokes for unidentified reasons and
must not be in a gate.

This makes npm run ci a strict superset of GitHub CI rather than a mirror.
That was already true of smoke:tui, which self-skips on CI; Firefox is the
second such step. The direction that matters still holds: passing
npm run ci locally means CI's gates will pass.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-26 00:12:55 -04:00
cliffhall
afa0ba6eeb fix(oauth): keep the server's path in the fallback authorization-server URL
When RFC 9728 protected-resource metadata names no authorization server, the
MCP server URL stands in as one. `getAuthorizationServerUrl` built that with
`new URL("/", serverUrl)`, which discards the path — exactly the part discovery
needs when the server is not hosted at the domain root. The SDK's
`buildDiscoveryUrls` derives the path-scoped well-known locations from that
pathname, so an origin-only value could only ever probe the domain root, which
404s for a server like `https://example.com/mod/minilesson/mcp.php`.

Keep the path (and strip query/fragment, which an RFC 8414 issuer never
carries). A straight swap would regress the case the origin-only value did
serve — a server that merely lives under a path while publishing its metadata
at the root — so the URL becomes the first of two candidates:
`getAuthorizationServerUrlCandidates` yields the path-scoped form then the bare
origin, and `discoverAuthorizationServerMetadataForServer` walks them, treating
a candidate's failure as non-fatal while another remains and rethrowing the
first error only when all of them fail.

`discoverScopes` and the CIMD pre-registration probe both go through the walk.

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 00:03:40 -04:00
cliffhall
6cacfa3ec5 fix(core): carry the in-progress SSE frame across chunk boundaries (#2134)
parseSSE declared currentEvent/currentData inside the read loop, so an SSE
frame whose data: line arrived in one chunk and whose terminating blank
line arrived in the next was discarded. buffer already carried a partial
LINE across reads; nothing carried a partial FRAME.

Because this is the web client's transport, the dropped frame is a
JSON-RPC response that never settles: the request hangs forever with no
rejection, no console message, and nothing in the Network tab. The
payload does not arrive corrupted, it does not arrive at all, which is
why it presents as a hang rather than an error.

It has not bitten us because Chromium and Firefox happen to deliver whole
frames at the payload sizes this transport currently sees. That is luck,
not a guarantee: chunk boundaries depend on payload size, TCP
segmentation, and any intermediary. The exposure grows with payload size,
so a large resources/read is the most likely first victim.

The fix hoists both out of the loop and adds an end-of-stream flush — a
server that closes without a final blank line has still delivered a
complete frame, and dropping it would lose the last message of every such
stream.

parseSSE is now exported, solely so the test can reach it. That is the
only way to hit this deterministically: driving a real transport cannot
steer where a chunk boundary lands, but a test that supplies the reader
can put it exactly on the terminator.

The test keeps the two PASSING cases (whole frame, split mid-payload)
alongside the three that failed, because they are what make the diagnosis
precise. This is not "SSE parsing is broken" — mid-payload splits are
handled correctly today, and only the frame-terminator boundary loses
data. Verified against the unfixed code: 3 of 5 fail, all 5 pass after.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 23:59:37 -04:00
cliffhall
8a7ade7b08 ci: drop the Firefox smoke job; keep the engines as an on-demand tool
The job was trialled and did not earn its place. It was genuinely cheap —
~2 minutes, running in parallel with the 15-minute build job, so zero
added wall-clock — but across a dozen runs Firefox never once disagreed
with Chromium. It was paying runner time and carrying a real flake
surface (playwright install --with-deps runs apt-get update, which fails
whenever a third-party repo in the runner image breaks; that is what the
one red run was) to re-confirm a result already in hand.

Everything that made cross-engine checking possible stays: SMOKE_BROWSER,
the shared headless-browser helper, the installer, and the tests. So
"SMOKE_BROWSER=firefox npm run smoke:web:engine" is there for the moment
it is worth running — before touching the sandbox, the CSP builder or the
proxy page — without taxing every push to re-derive the same answer.

The workflow is now byte-identical to v2/main again; the publish jobs go
back to needing only build.

Docs say what is true rather than what was intended, and AGENTS.md
records the reasoning so the job is not re-added on the general argument
that cross-engine coverage is good — that argument was already accepted,
and the on-demand path is what serves it. Re-add it on evidence: a real
cross-engine regression a gate would have caught.

Also swept the now-stale "matrix" language out of the smokes and the
resolver, including the empty-SMOKE_BROWSER rationale, which no longer
leans on a matrix key that does not exist.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 23:55:19 -04:00
cliffhall
fb9e146043 docs(smoke): drop the #2132 references now that the issue is closed
#2132 was closed without the investigation going anywhere, so every
'pending #2132' pointer in the tree was about to send a reader to a
closed issue whose own diagnosis had already been retracted.

The docs now say what is actually known, and nothing more: the two App
smokes fail under Playwright's WebKit for unidentified reasons; it does
not reproduce in real Safari; an isolated repro of the suspected
mechanism did not reproduce it under Playwright's WebKit either; and
chasing it further was judged not worth the effort. A reader hitting it
locally is told to treat it as unexplained rather than as a defect.

The matrix decision is unchanged and never depended on the cause — the
engine fails, so it is not gated.

No behavior change.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 23:35:11 -04:00
cliffhall
d493b232b3 docs(smoke): retract the #2132 mechanism claim; state that it is unknown
An isolated repro of the mechanism I described — a server writing three
SSE frames then going silent with the connection held open, read via
fetch + getReader — delivers every frame in all three engines, WebKit
included. So 'the SSE stream's last message is not delivered' is not a
supported description of the failure.

The keep-alive experiment that appeared to confirm it was one
observation, and the failure is not even stable in shape: two consecutive
webkit runs failed at different stages (ready wait vs connect wait),
which a deterministic buffering bug would not do.

What is unchanged: the App smokes really do fail under Playwright's
WebKit, which is why the engine stays out of the matrix; that reason
never depended on the mechanism. The parseSSE cross-chunk defect also
stands, being read off the code rather than inferred from an experiment.

No behavior change.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 23:02:43 -04:00
cliffhall
32cb4c63a7 fix(smoke): reject an empty SMOKE_BROWSER; test the installer's argument logic
Two findings from Copilot's suppressed block.

1. resolveBrowserName treated a present-but-empty SMOKE_BROWSER as unset
   and returned chromium. The test that covered it even documented WHY
   that is dangerous — GitHub Actions renders an undefined matrix key as
   "" rather than omitting the variable — and then asserted the unsafe
   behavior. A misspelled matrix key would run chromium inside a job named
   for another engine and report green: the same false-coverage outcome
   the unrecognized-value branch exists to prevent, reached by a typo
   instead of a bad value.

   Only an absent variable now selects the default. Empty throws, naming
   the likely cause and the actual remedy ('unset it', which is not the
   same as setting it to nothing). The workflow always renders a real
   value, so nothing in CI is affected.

2. install-smoke-browser.mjs had no tests. Its I/O half runs on every
   smoke and fails loudly; its argument half does not — every caller
   passes nothing or the literal 'chromium', so the precedence rule is
   asserted by nothing at runtime. It matters: pack:verify passes chromium
   BECAUSE it launches chromium, and if the environment won,
   SMOKE_BROWSER=webkit npm run pack:verify would install one engine and
   launch another, surfacing as a misleading "Executable doesn't exist".

   resolveRequestedBrowser is now exported and pure; execution moved
   behind main() with the entrypoint guard verify-typecheck-coverage.mjs
   uses, so importing the module for tests cannot trigger an install.

Both mutation-verified: restoring either behavior fails the tests that
claim to cover it.

Addresses the suppressed comments on Copilot's fifth review of #2133.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 22:52:02 -04:00
cliffhall
4ab0139de9 test(smoke): cover loadBrowser's failure branches; fix a stale helper comment
Two findings from Copilot's suppressed block.

1. The launch-failure message is #2086's acceptance criterion — a missing
   browser must name THAT engine and its own install command — and it had
   no test. The smokes cannot supply one: install-smoke-browser fetches
   the binary first, so a passing smoke says nothing about what a failing
   one prints, and that message is the deliverable. loadBrowser now takes
   an injectable loadPlaywright purely to open that seam.

   The test asserts per engine that the message leads with that engine,
   names --with-deps <that engine> and no other, and preserves the
   underlying cause. Verified by mutation: hard-coding 'chromium' in the
   message fails it. It also pins the two branches apart — an unresolvable
   package must say
> @modelcontextprotocol/inspector@2.3.0 postinstall
> node scripts/install-clients.mjs

[install-clients] Installing dependencies for clients/web...

up to date, audited 583 packages in 614ms

198 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
[install-clients] Installing dependencies for clients/cli...

up to date, audited 237 packages in 496ms

69 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
[install-clients] Installing dependencies for clients/tui...

up to date, audited 314 packages in 518ms

102 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
[install-clients] Installing dependencies for clients/launcher...

up to date, audited 160 packages in 449ms

50 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

up to date, audited 281 packages in 3s

108 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities and must NOT say ,
   which fetches binaries and cannot fix a missing package.

   The unsupported-engine test now also asserts loadPlaywright was never
   called, pinning the ORDER rather than only the message: validating
   first is what makes the error name the real mistake.

2. prod-web-server.mjs's header still described the  prefix this PR removed. Corrected, keeping why
   deriving paths from import.meta.url is still right, and adding the
   elicitation smoke to the list of callers it had also outgrown.

Addresses the suppressed comments on Copilot's review of #2133.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 22:42:06 -04:00
cliffhall
25eb2fb3bf docs(smoke): stop describing the WebKit smoke failure as a Safari bug
#2132 was filed asserting that a Safari user opening an MCP App gets a
permanently 'loading' widget. That was never tested. A manual check in
real Safari renders the App normally, so the claim is unsupported and is
removed from all six places it reached.

The failure under Playwright's WebKit is real and still keeps that engine
out of the CI matrix. What is not established is that any shipping
browser behaves this way — and Playwright ships its own WebKit build
whose networking stack is not Safari's, which is exactly the layer the
failure lives in.

headless-browser.mjs already carried the caveat that a green WebKit run
is not a Safari guarantee. The same sentence forbids the inverse
inference, which is the one that was made; it now says so explicitly, and
AGENTS.md carries the rule: reproduce in the real browser before claiming
user impact in one.

No behavior change.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 22:32:47 -04:00
cliffhall
1404dd9980 Merge remote-tracking branch 'origin/v2/chore/2086-cross-browser-app-smokes' into v2/chore/2086-cross-browser-app-smokes 2026-08-25 21:00:53 -04:00
cliffhall
03efc2df18 docs(smoke): finish the CI-topology correction in README and the workflow
Round 1 fixed the three smoke headers and AGENTS.md but left the same
overstatement in the two files Copilot flagged as previously-missed:

- README said the matrix runs 'the remaining engines', which reads as
  Firefox AND WebKit and contradicts the very next paragraph. It now
  names the current matrix (Firefox alone) and points at that paragraph.
- The workflow's fail-fast comment cited a WebKit-vs-Firefox scenario the
  one-entry matrix cannot produce. It now justifies keeping the flag for
  when a second engine returns, matching the AGENTS.md wording.

Swept the whole tree for the remaining variants of the claim; none left.

Addresses the suppressed comments on Copilot's second review of #2133.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 21:00:36 -04:00
Cliff Hall
c0ab70a579
Merge branch 'v2/main' into v2/chore/2086-cross-browser-app-smokes 2026-08-25 20:58:07 -04:00
Cliff Hall
ca2846de28
Merge pull request #2131 from modelcontextprotocol/v2/fix/2095-pagination-override-by-server
fix: keep the pagination toggle on the last write across a server switch
2026-08-25 20:56:00 -04:00
cliffhall
822919f3ef docs(smoke): state the actual CI browser coverage, not the intended one
The three smoke headers and one AGENTS.md bullet still said CI runs all
three engines. That was written before pointing the smokes at WebKit
found #2132; the matrix was then narrowed to Firefox and these were not
brought along, so they claimed a gate that does not exist. Each now says
what CI actually enforces — Chromium in the build job's `npm run smoke`,
Firefox in the Sandbox smokes matrix — and where WebKit stands.

smoke-web-browser.mjs additionally notes that IT passes in WebKit; the
two App smokes are the ones that do not, and a reader of this file should
not infer otherwise from a bare '#2132' reference.

The fail-fast: false rationale no longer cites a WebKit-vs-Firefox
example it cannot currently produce, and says why the flag is still right
for a one-entry matrix.

Addresses Copilot review on #2133.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 20:52:43 -04:00
cliffhall
ef4259a544 test(smoke): run the headless web smokes in Firefox and WebKit, not just Chromium (#2086)
Every browser-driven check in this repo launched Chromium and nothing else.
That is fine for most of the web client, whose behavior is React and Mantine.
It is not fine for the MCP Apps sandbox, which is built out of the primitives
that genuinely diverge between engines: a CSP <meta> injected as the first
<head> child of a srcdoc document, a nested sandboxed iframe, a
Permissions-Policy allow attribute, and postMessage origin discipline across
those two frames. Nothing else covers that surface — sandbox-csp.test.ts
asserts which policy STRING is built (environment-independent by
construction), and no Storybook story reaches the sandbox at all, since all
three App stories use a data: placeholder iframe and a mock bridge.

The engine is now a parameter:

  SMOKE_BROWSER=webkit npm run smoke:web:app
  SMOKE_BROWSER=firefox npm run smoke:web:engine   # all three smokes

Unset means chromium, so `npm run ci` and `npm run smoke` are unchanged. An
unrecognized value is an error rather than a fallback — falling back would
report a green Chromium run under a job labelled "webkit", claiming coverage
that never ran — and a launch failure names the engine that failed and its own
`playwright install` invocation.

Selection, launching, and the fatal-vs-benign page-diagnostics split now live
in one shared scripts/lib/headless-browser.mjs. The three smokes had each
hand-rolled the diagnostics split and two had their own copy of loadChromium;
pack:verify goes through the same helper, pinned to Chromium explicitly since
it is a packaging check.

The npm scripts drop their `cd clients/web && npx playwright install chromium`
prefix for scripts/install-smoke-browser.mjs. The engine is a variable now, and
a ${VAR:-default} expansion does not expand under Windows' cmd.exe; npx is also
a .cmd shim there that a shell-free spawn cannot start, so this resolves the
Playwright CLI through resolveNodeBin — the #1939 problem solved the #1939 way.

CI gains a `Sandbox smokes (<engine>)` matrix job rather than matrixing `build`,
which also runs validate, the coverage gate, two verify gates and Storybook —
all engine-independent. Both publish jobs now need it.

WebKit is supported by the tooling but deliberately NOT in the CI matrix yet:
pointing the smokes at it immediately found #2132, a pre-existing Safari
incompatibility in the web client's SSE transport that strands the last message
on /api/mcp/events, so an MCP App never leaves "loading". That is a product bug
affecting real Safari users, with its own diagnosis and a verified fix, and it
is not a matrix change. Adding `webkit` here is a one-word diff once it lands.
An engine is either green in CI or absent from it; a continue-on-error job would
report coverage nobody is held to.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-25 20:44:11 -04:00
cliffhall
bbffafded1 fix: resolve the servers list outside the override's state updater (#2095)
`record` read `serversRef.current` from inside the `setRecords` updater. A
functional updater must be pure -- React may defer or replay it -- so the
pairing resolved at whatever moment the updater happened to run rather than
when the record was written. A list read committing in between would then be
paired with the record as its baseline, and the very read that should have
superseded the override would instead certify it.

Read the list once, at call time, and use it for both the pairing and the
prune.

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>
2026-08-25 20:33:14 -04:00
cliffhall
8a6bec02a7 docs: correct the toggle rollback comment for the per-server override (#2095)
The rollback's explanation still described the removed app-wide boolean and
claimed the override was applied only for the active server. That is now the
live client's rule alone: the override is keyed by this write's server and is
only ever displayed while that server is active, so it is recorded whatever
is active by the time the rejection arrives.

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>
2026-08-25 20:26:53 -04:00
cliffhall
7098da7473 fix: keep the pagination toggle on the last write across a server switch (#2095)
The displayed `paginatedLists` value falls back to the active `servers`
entry, and that list only advances when a `GET /api/servers` succeeds — so
once a list read fails it keeps describing disk as it was before the writes
made since. The optimistic override papered over that, but it was a single
app-wide slot cleared on every change of the *active* entry, so switching to
another server and back dropped it and the UI fell back to the stale entry.

Two things then disagreed, and the one the user could see was the wrong one:
the toggle read `off` while disk, the write tracker, and the client just
built from it all said `on`; and because the client skipped its connect-time
aggregate walk, the all-pages UI rendered an aggregate that was never
fetched, with no Load-next-page control to fill it.

Hold the override per server instead, in `usePaginatedListsOverride`, paired
with that server's entry as of when it was recorded and believed only while
the list still carries that same entry object — identity, not equality, so a
read reporting the value the override replaced supersedes it too. A server's
override then survives a switch away and back, and is still superseded by
the first successful read that rebuilds its entry.

The read cannot instead move to `lastPersistedSettings.resolve(id)`: that is
called during render, and it both reads refs and prunes superseded records.

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>
2026-08-25 20:20:57 -04:00
Cliff Hall
897f21c192
Merge pull request #2119 from modelcontextprotocol/v2/fix/2096-stdio-env-cwd-revert
fix(web): carry a landed stdio env/cwd onto the config it connects with
2026-08-25 09:19:29 -04:00
Cliff Hall
ca418b4032
Merge branch 'v2/main' into v2/fix/2096-stdio-env-cwd-revert 2026-08-25 09:19:15 -04:00
Cliff Hall
becec95c80
Merge pull request #2118 from modelcontextprotocol/v2/fix/2117-persist-requested-scope
fix(oauth): persist the requested scope when the token response omits it
2026-08-25 09:18:44 -04:00
Cliff Hall
e5b65c7011
Merge branch 'v2/main' into v2/fix/2096-stdio-env-cwd-revert 2026-08-25 09:18:19 -04:00
Cliff Hall
6e88797416
Merge branch 'v2/main' into v2/fix/2117-persist-requested-scope 2026-08-25 09:18:16 -04:00
Cliff Hall
68a9d0b084
Merge pull request #2121 from modelcontextprotocol/v2/feat/1005-schema-lint
feat: flag unportable tool schemas in all three clients
2026-08-25 09:17:46 -04:00
Cliff Hall
d8a359bd28
Merge branch 'v2/main' into v2/fix/2096-stdio-env-cwd-revert 2026-08-25 09:06:01 -04:00
Cliff Hall
720e602915
Merge branch 'v2/main' into v2/fix/2117-persist-requested-scope 2026-08-25 09:05:57 -04:00
Cliff Hall
c228a326af
Merge branch 'v2/main' into v2/feat/1005-schema-lint 2026-08-25 09:05:51 -04:00
Cliff Hall
e562e91cb0
Merge pull request #2120 from modelcontextprotocol/v2/chore/2111-unconditional-test-server-build
chore(scripts): build test-servers unconditionally from one shared helper (#2111)
2026-08-25 09:04:55 -04:00
Cliff Hall
6af849e217
Merge branch 'v2/main' into v2/fix/2096-stdio-env-cwd-revert 2026-08-25 08:55:35 -04:00
cliffhall
71b960e078 Merge branch 'v2/main' into v2/fix/2117-persist-requested-scope
#2114 landed on v2/main, which is the PR this one follows up. Two
conflicts, one of them silent.

The marked conflict was cosmetic: keep v2/main's comment on the
`provider.scope` read, which now notes the getter filters (#2068).

The real one git merged cleanly and would have left dead: #2114's

  if (this.oauthConfig.requestRefreshToken === false && requestedScope) {
    this.pendingAuthorizationScope = requestedScope;
  }

sat directly above this branch's unconditional
`recordAuthorizationRequestScope`, which overwrites the same field a few
lines later. Dropping that gate is what #2117 is for, so it is removed
rather than kept as a no-op.

The two changes compose: the SDK adds `offline_access` only when
`clientMetadata.grant_types` includes `refresh_token`, which the provider
drops while the opt-out is on -- so reading the authorize URL yields the
filtered scope there, exactly what #2114's gated branch persisted.

#2114's third case pinned the gate and inverts here, as its issue
predicted. It now asserts the request is persisted even with the grant
on; that records no new claim, since the request equals what storage
already held.

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>
2026-08-25 08:51:45 -04:00
Cliff Hall
e005055a46
Merge branch 'v2/main' into v2/feat/1005-schema-lint 2026-08-25 08:46:11 -04:00
Cliff Hall
fc890532b0
Merge branch 'v2/main' into v2/chore/2111-unconditional-test-server-build 2026-08-25 08:43:10 -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