Five findings, all real.
**Critical — `verifySkills` selected `contents[0]`.** These bytes are hashed
against the file's advertised digest, so accepting a block the server
labelled something else verifies one file's content against another file's
digest, and can report that as `verified`. A false pass is worse than a
missing check. `contentsFor(result, uri)` now selects by NORMALIZED identity,
which keeps the canonicalized-echo case that motivated the original code
while rejecting an unrelated block, and reports a read error when nothing
answers for the URI. This is what `onReadSkillFile` already did; the two
paths hash bytes against digests and must not disagree about which bytes.
**`skills/get` was dispatched without the extension gate** that `skills/list`
had. Hoisted into `assertSkillsSupported` so the two cannot drift — declaring
the extension commits a server to both. Without it, an undeclared server's
-32601 is indistinguishable to a script from the -32602 a declared server
returns for a URI it does not serve.
**The TUI could strand a user on a hidden Skills tab.** The tab left the bar
when the gate went false but `activeTab` did not, so the pane kept rendering
for a server that never declared the extension. Reset to `info`, following
the Auth precedent — additionally gated on `connected`, because this gate
reads a server declaration and would otherwise fire during a reconnect.
**The TUI keyed a verdict by URI**, so a refresh replacing the manifest under
the same URI left hashes computed for the previous snapshot describing the
new one. Keyed on the entry now, as the web screen already was.
**A failed "Load more" discarded the pages on screen and the retry cursor.**
Both are preserved now, and the success and failure paths share one
staleness-guarded `commit` helper so they cannot drift on which results they
may write — which is how they came to disagree.
Two nits: the six-skill counts. The docs sentence was more wrong than
reported (five awkward skills of six, three outright violations) and is
rewritten rather than renumbered.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ND46Ci64DC3tzBy9aG81Nc
Signed-off-by: cliffhall <cliff@futurescale.com>
Closes#2248.
Completes SEP-2640 support across all three clients, and closes the one
obligation #2234 deliberately left open.
- `checkSkillFrontmatterMatch` compares a served SKILL.md's own YAML
frontmatter against the entry the listing advertised, field by field. No
digest can cover this: a digest is taken over the bytes the server served,
so it proves the file was not altered in transit and says nothing about
whether the listing described it honestly. Needs a real YAML parser; `yaml`
was already a root dependency, so this adds no package — but it does newly
put it on core/'s import graph, hence the three bundler `external` lists.
- `resources/directory/read`: result schemas defined against the normative
text, `InspectorClient.readResourceDirectory`, a Directory section on the
Skills screen, and `--method resources/directory/read` in the CLI. The
client refuses the call locally when the server did not declare
`directoryRead`, which is the SEP's MUST NOT. A child the directory lists
but the entry does not is marked `not listed` rather than merged into the
manifest — the SEP calls a directory result a live observation and forbids
treating it as extending the manifest.
- CLI: `skills/list`, `skills/get` and `resources/directory/read`, plus
`--verify` — one NDJSON report per skill, a summary on stderr, exit 7 on a
violation. Reads are sequential; a conforming manifest may declare 512
entries.
- TUI: a Skills pane, shown only when the server declares the extension. Each
row carries its conformance verdict as a glyph as well as a colour, since
the pane is read over ssh and through script(1). Enter verifies.
- `verifySkills` re-throws `AuthRecoveryRequiredError` rather than recording
it per file: it says the session's authorization expired, so absorbing it
would report N identical read failures and swallow the error the TUI and
the web commands key off to reauthorize.
Two open questions settled, both in code comments where they will be found:
`skills/get` carries no caching attributes because SEP-2640 leaves the
question open in as many words, so requiring them would fail a conforming
server; and there is no `PagedSkillsState` because every consumer of this
list is a whole-catalog verdict — computed over page one of three, "this
server's skills conform" is not merely partial but wrong.
The fixture grows two skills, both for checks that were otherwise
undemonstrable: `lying-listing` (listing and file disagree, digest still
verifies) and `stale-manifest` (serves a file its manifest does not declare).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ND46Ci64DC3tzBy9aG81Nc
Signed-off-by: cliffhall <cliff@futurescale.com>
Since round 1 the doc claimed the `name` fallback covers "a structured clone or
a JSON hop". Verified, and it is false for half of that:
structuredClone(new InsecureTokenEndpointError(url))
-> name: "Error", tokenEndpoint: undefined, constructor: Error
structuredClone normalizes a custom Error subclass back to Error, so neither
arm has anything left to match. A caller routing this error through
structuredClone or postMessage would silently get the generic retryable
handling back — the exact defect this PR removes.
The test could not have caught it: it hand-built a look-alike plain object, so
it asserted what I believed the boundary does rather than what it does. It now
performs a real JSON round trip (asserting the prototype is gone), and a second
case pins that structuredClone is NOT recognized — turning a false claim into a
tested limitation.
The doc comment now scopes the contract to JSON and states the structuredClone
limit with the remedy: serialize the fields explicitly across such a boundary.
Also removes an orphaned JSDoc block the round-4 refactor stranded above the
report helper, and gives showInsecureTokenEndpointNotice its own doc back.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018MvNbmAtQuWhDvzi4yXDju
Signed-off-by: cliffhall <cliff@futurescale.com>
- The recovery text told users to move the endpoint to `::1`. A bare IPv6
literal is not a legal URL host — `new URL("http://::1/token")` throws — so
anyone copying that into the Token URL override got a parse error from advice
meant to unblock them. Now `[::1]`, in both the notice and the manual
reproduction guide.
The exemption list still reads `::1`, because that is the host the SDK
compares; only the remedy is bracketed, because that is what a user types.
The comment says so, so neither gets "corrected" into the other.
- Dropped SEP-2207 from all nine files it had reached. I took the label from
the SDK's own source comments, which attribute this check to it — but this
repo already uses SEP-2207 for OIDC refresh / offline_access
(specification/v2_auth_hardening.md, plus an e2e test), so grepping it here
would have turned up two unrelated things. Replaced with plain description
rather than a different SEP number: having guessed wrong once, guessing again
is not the fix.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018MvNbmAtQuWhDvzi4yXDju
Signed-off-by: cliffhall <cliff@futurescale.com>
Both are accuracy defects in the one message whose entire job is to be
actionable, so both matter more than their size.
- "before any credentials were sent" is FALSE on the mid-session refresh and
re-authentication paths this same notice serves, where credentials were
legitimately sent earlier in the session. A user connected for an hour would
read it as describing some other failure. Now scoped to the request actually
refused: "without sending this request".
- The recovery guidance named "Server Settings → Authorization". The UI renders
that accordion as "OAuth Settings" and the field as "Token URL override"
(ServerSettingsForm.tsx), so the message directed people to a section that
does not exist, precisely when it was asking them to go reconfigure
something.
Both pinned by tests, including negative assertions on the old wording so it
cannot drift back.
The round's third finding was against test-server-http.ts's strictPort
precondition, which no longer exists — that option was dropped in 6c1b532,
after the review ran.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018MvNbmAtQuWhDvzi4yXDju
Signed-off-by: cliffhall <cliff@futurescale.com>
Closes#2280
InsecureTokenEndpointError appeared nowhere in our source, so it fell through
to the generic auth-failure path and rendered a "Re-authentication required"
banner with a Re-authenticate button. That button can never work: the SDK's
assertSecureTokenEndpoint runs inside executeTokenRequest, the error does not
extend OAuthError, and auth() special-cases it to rethrow rather than start a
fresh /authorize redirect. Clicking re-ran the same flow to the same refusal,
under the raw SDK message, which names the three exempt host literals and
nothing actionable. A terminal configuration error was being presented as a
retryable auth error.
Not specific to *.localhost: it fires for any endpoint outside the SDK's
exemption — host.docker.internal (#1911), a LAN hostname, a reverse-proxy
name, a mistyped scheme.
It is now recognized (core/auth/insecureTokenEndpoint.ts, mirroring
issuerBinding.ts's brand-plus-name classifier and walking cause / data.cause,
since era negotiation and the transport wrappers bury the rejection) and
surfaced as the configuration error it is, naming the endpoint and both ways
out, with no action affordance.
Six paths reach the refusal and all six classify it — the connect handshake,
authenticate() during connect, the satisfied-challenge connect retry, the
post-redirect callback, the command/background path, the deferred tab-visible
resume (which re-armed on every focus, an unbounded loop on a terminal error),
and the banner action. They share one wrapper so a seventh cannot omit the
banner clear, and every clear is scoped to its own serverId: these paths are
asynchronous, so a late continuation for one server must not erase a banner
another raised in the meantime.
Adds oauth-insecure-token-endpoint-http.json to reproduce it, whose issuer is
http://localhost.:8091 — the root-anchored spelling every resolver sends to
loopback but which is none of the SDK's exempt literals. transport.strictPort
keeps that fixture honest, since its port is hard-coded inside the issuer.
Making such an endpoint work has to land in the SDK (typescript-sdk#2591);
this changes the reporting, not the outcome.
Split out of #2282, where it was tangled with the *.localhost origin work for
#1944 — a separate question the reporter is still clarifying.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018MvNbmAtQuWhDvzi4yXDju
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287): `EmaTransportOAuthProvider` forwarded
`clientInformation` / `saveClientInformation` without the SDK's `ctx`, and
implemented neither `discoveryState` nor `saveDiscoveryState`. Since the wrapper
does expose `clientMetadataUrl`, an EMA connection can still take SDK `auth()`'s
URL-based-client-ID branch — and the inner provider then saw
`issuer === undefined` with no discovery state to read back, so the CIMD write
was recorded as DCR.
Forward `ctx` on both, and delegate the two discovery-state methods to the inner
provider. Both were pre-existing SEP-2352 gaps in their own right: dropping the
issuer put every EMA read and write on the unkeyed slot, and the missing
discovery state meant the SDK re-discovered on every call and warned that it
could not run its callback-leg authorization-server binding check.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287), two findings — and taken together they said the marker
was the wrong mechanism, so this removes it rather than patching it again:
- A transient failure in our CIMD preflight recorded no marker, so a *successful*
SDK fallback discovery that advertised CIMD was still stored as `dcr`.
- `existing` and `existingKind` could describe different registrations, because
`clientInformation()` answers preregistered-first while `clientRegistrationKind()`
prefers the issuer's dynamic slot.
SDK v2 `auth()` persists the authorization-server metadata via
`saveDiscoveryState` *before* it reads or writes client information, and it takes
its URL-based-client-ID branch — rather than `registerClient` — exactly when that
metadata advertises `client_id_metadata_document_supported` and a
`clientMetadataUrl` is configured. So the branch is not inferred at all now: it is
read back from the state the SDK itself just wrote.
`resolveSdkRegistrationKind` becomes two cases. A save for an issuer that already
has a registration under this `client_id` is a back-stamp, answered by that
registration's recorded kind — so an existing DCR on the metadata URL stays
`dcr`. A save for an issuer with none is a new registration, answered by the
discovery state, guarded on the metadata describing that same issuer.
This drops `cimdClientMetadataUrl` and its storage accessors entirely, and
restores `ensureCimdClientRegistration` to a plain issuer-bound pre-registration.
Invalid-client recovery, second-issuer CIMD, second-issuer DCR minting the
metadata URL, and preflight failure are all consequences of the two cases rather
than separate mechanisms.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287): the marker was written as soon as the AS advertised
`client_id_metadata_document_supported`, before checking what registration
already existed. RFC 7591 §3.2 leaves a dynamically issued `client_id` opaque,
so an existing DCR may carry the configured metadata URL — and marking the
issuer then relabels that real dynamic registration as CIMD on the SDK's next
issuer stamp.
The marker now records both facts it is read for: that this AS accepts the URL
as a `client_id`, *and* that the registration standing for it got there through
CIMD. It is written where this helper establishes the registration itself,
reaffirmed for one already recorded as `cimd` under that exact URL, and withdrawn
otherwise — which also covers a static client and an AS that has stopped
advertising CIMD.
Covered at both levels: a mocked case asserting the marker is withdrawn for an
existing DCR on the same URL, and an end-to-end real-storage case asserting such
a registration is still `dcr` after the SDK issuer-stamps it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287, suppressed comment): the comment still said internal
callers supply no issuer, which stopped being true when
ensureCimdClientRegistration started binding its save to the discovered issuer.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287), three findings:
1. **invalid-client recovery lost the provenance.** SDK v2 `auth()` answers
`invalid_client` / `unauthorized_client` with `invalidateCredentials("client")`
and an immediate retry; our clear drops the registration *and* its kind, so
the retry's URL-based client-ID save landed with nothing recorded and was
stored as `dcr`. Provenance now lives in `cimdClientMetadataUrl`, an
issuer-keyed marker on the issuer slot that records a property of the AS
rather than a credential — `clearClientInformation` deliberately leaves it
alone. `ensureCimdClientRegistration` writes it, and withdraws it when the AS
stops advertising CIMD, on every connect.
2. **Discovery became a hard network dependency.** Moving the existing-client
check after discovery meant a well-known outage could fail a reconnect the SDK
would have served from its persisted discovery state. Reuse
`provider.discoveryState()` first, and treat a discovery failure as "skip
pre-registration" rather than an error — this helper is an optimization over
what `auth()` does for itself.
3. **Dropped an unjustified double cast** in the test fetch helper; the async
signature is directly assignable to `typeof fetch`.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287): the active-issuer fallback added last round could copy
issuer A's CIMD provenance onto a real dynamic registration for issuer B, since
RFC 7591 §3.2 permits B to mint the same opaque URL as its `client_id`.
Fix it at the source rather than in the resolver. `ensureCimdClientRegistration`
now runs discovery first and records the registration against the issuer it just
discovered, having confirmed *that* AS advertises
`client_id_metadata_document_supported`. Its "already registered?" check moves
after discovery and is keyed by that issuer — read ctx-less it resolved through
the active issuer and early-returned for every later one, which is what forced
the cross-issuer fallback in the first place.
`resolveSdkRegistrationKind` is therefore issuer-scoped again, with no fallback.
A second AS behind one resource now gets its own determination: CIMD when it
advertises CIMD, `dcr` otherwise — including when it mints the metadata URL as
its own `client_id`.
The cost is a discovery round trip per connect attempt rather than only the
first; noted at the call site.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287): scoping the stored-CIMD check to the incoming issuer
alone mislabels the SDK's own CIMD write for a second authorization server.
SEP-2352 keys registrations per AS, so the first binding promotes the unkeyed
CIMD entry into issuer A's slot and clears the fallback;
`ensureCimdClientRegistration` then early-returns on its ctx-less read, and the
save under issuer B finds nothing recorded for B.
Check the issuer slot and then the server's active registration, so a second
issuer stays CIMD while a `client_id` the AS minted itself still falls through
to `dcr`. Covered by two tests driving a real `OAuthStorageBase` through the
A → B sequence, since the behaviour under test is how storage promotes and
clears slots rather than anything a mock would express.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review (#2287): RFC 7591 §3.2 leaves a dynamically issued `client_id`
opaque, so `client_id === clientMetadataUrl` is not on its own proof that CIMD
ran — an authorization server could in principle mint that value from
`POST /register`.
Narrow the claim to a conjunction, whose decisive term is a registration we
recorded as CIMD ourselves rather than an inference about what the AS returned:
CIMD must be configured for this connection, the incoming `client_id` must be
exactly that metadata-document URL, and the registration already stored under
that id must be recorded as `cimd`. Everything else falls through to `dcr`.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
`BaseOAuthClientProvider.saveClientInformation` treated every save without an
explicit `registrationKind` as DCR. The SDK reaches it from three places in
`auth()` and only one is a dynamic registration, so the issuer-binding write
overwrote the `cimd` provenance our own pre-registration had just stored — and
Connection Info reported `Dynamic (DCR)` for a connection that never issued a
`POST /oauth/register`.
Recover the kind instead: a `client_id` equal to the configured
`clientMetadataUrl` is CIMD (which also covers the SDK's own CIMD write), and
otherwise a stored registration with the same `client_id` carries its recorded
kind forward. Matching on `client_id` keeps stale CIMD provenance from leaking
onto a later DCR registration for the same server.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lmj6X2epWpPE7ScdSKQmtA
Signed-off-by: cliffhall <cliff@futurescale.com>
Adds a third entry to `DEFAULT_SEED_CONFIG`, `example-server-default`, a
Streamable HTTP card pointing at the MCP org's own feature-reference server
(https://example-server.modelcontextprotocol.io/mcp). Until now every seeded
server was a local stdio process and every remote example in the docs was a
placeholder, so trying a remote connection meant finding or standing up a
server first.
The endpoint is protected by OAuth, but its authorization server advertises
Dynamic Client Registration and fronts a *mock* upstream IdP, so the whole
round trip completes with no account, no API key and no pre-registered client
— which is what makes it viable as a shipped default. Verified end to end
against a prod build: the card connects, negotiates MCP 2025-11-25 and lists
the reference server's tools.
The seed carries no `protocolEra`. That is not a default-by-omission: the
server answers the plain `initialize` handshake and rejects `server/discover`,
so it has no modern (SEP-2663) era to negotiate — `"auto"` would only buy a
failed probe and `"modern"` would fail the connection outright.
Docs updated alongside: the seeded-catalog block and per-client table in
`docs/mcp-server-configuration.md`, the Streamable HTTP example there (which
now leads with the live endpoint and keeps a placeholder to illustrate
`headers`), and the seed description in `clients/launcher/README.md`.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012x3rC3JXU17aW3uSwjPoi5
Signed-off-by: cliffhall <cliff@futurescale.com>
`ManagedRequestorTasksState.refresh()` drives the legacy `tasks/list` walk
itself, and both of its cursor tests were truthiness checks — so the fixed
adapter was never reached. `while (cursor)` ended the walk on a `""`
`nextCursor`, leaving the user-visible task list on page one, and
`cursor ? [...this.tasks, ...page] : page` would have replaced the
accumulated list rather than extended it had the walk continued.
Both now test `=== undefined`. The other four paged/managed stores already
did (`pagedToolsState`, `pagedPromptsState`, `pagedResourcesState`,
`pagedResourceTemplatesState`, `pagedRequestorTasksState`,
`managedSkillsState`); this was the last walk on the truthiness side.
Covered by a new case in `managedRequestorTasksState.test.ts` that paginates
`"" → "c2" → end` and asserts the cursor each call received, so a walk that
terminated correctly but re-requested page one still fails. Reverting either
guard on its own fails exactly that case.
Reported by Copilot on #2277.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EN2UfrkQZvtrviMtqURRm4
Signed-off-by: cliffhall <cliff@futurescale.com>
An MCP cursor is an opaque string: the spec constrains neither its content
nor its length, so `""` is a `nextCursor` a server may legitimately return
and the client is required to send back verbatim.
`listPrompts`, `listResources`, `listResourceTemplates` and
`listRequestorTasks` built their request params with `cursor ? { cursor } : {}`,
a truthiness check that cannot distinguish "no cursor" from "the cursor is
the empty string". Against a server that paginates with `""` they dropped it
and re-requested page one — a list that silently stops at the first page, or
a walk that loops on it forever. Nothing surfaced an error, because the
request was well-formed; it just asked the wrong question. `listTools` (and
the later `listSkills`) already used `cursor !== undefined`; this brings the
other four into line.
`getReplayableParams` in `protocolReplay.ts` existed partly to mirror the
asymmetry — its `method === "tools/list" || params.cursor !== ""` special
case collapses to `typeof params.cursor === "string"` now that the adapters
agree, and its long comment is updated rather than left describing a state
that no longer exists.
Coverage:
- `inspectorClient-list-cursor.test.ts` asserts the outbound params of all
five adapters — `""` carried, an absent cursor sending no `cursor` key,
a non-empty cursor forwarded unchanged. `listTools` is the control.
- `test-servers/configs/empty-cursor-http.json` (`emptyStringCursor`) hands
out `""` as the cursor for page two, the shape no other fixture produces,
and `empty-cursor.test.ts` walks all three of its lists end to end.
- Removing the fix from any one adapter fails exactly its two cases.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EN2UfrkQZvtrviMtqURRm4
Signed-off-by: cliffhall <cliff@futurescale.com>
`isOfferable` in `core/json/rootUnion.ts` checked that a merged branch carries
at least one property and that every property value is readable, but never that
each name in `required` resolves to a property a form can render. A branch like
`{ properties: { kind }, required: ["kind", "payload"] }` was therefore offered
in the picker, rendered no control for `payload`, and had the submit-time check
report it missing permanently — the exact dead end the function's own comment
already reasons through for a `false`-schema required field, one case short.
Judge the merge, so a branch requiring only names the ROOT declares —
`anyOf: [{ required: ["email"] }, …]` — stays offerable as before. `hasOwn`
rather than `in`, since an argument legally named `constructor` would otherwise
resolve through the prototype and read as declared.
Declining every branch of a union leaves the web form with neither a picker nor
a field, which is a different dead end. `SchemaForm` now seeds the raw-JSON
editor (#2151) in that one case — a root union that resolved to no branches and
no properties — so the arguments stay expressible. Seeded rather than forced, so
the switch still works, and re-seeded during render (never in an effect) because
the form is reused across tools rather than remounted. A tool that genuinely
takes no arguments is untouched. The TUI has no such editor; there the union is
simply not offered, which is already better than a section that can never be
submitted.
Adds a `record_shipment_by` preset and wires it into the
`root-union-schemas-http.json` showcase so the shape is reproducible by hand,
with docs/test-servers.md covering it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PxYT4eKdnx1yRw7x4bW7Ts
Signed-off-by: cliffhall <cliff@futurescale.com>
Round 16 reported no inline comments and three suppressed findings, all
valid:
- `getSkillsExtension` treated a non-object extension value (`false`,
`"skills"`) as a declaration. SEP-2133 declares an extension as an
object of sub-options, so a primitive is not one — now rejected,
matching `appElicitation.ts`.
- The `onGetSkill` prop doc claimed the two responses "must agree" and
that a difference means a broken server, contradicting the
implementation, which reports a difference as a finding rather than a
fault. Reworded to what the code does.
- No real-transport test exercised the fixture's `skills/*` handlers.
Added `src/test/integration/mcp/inspectorClient-skills.test.ts`,
parameterized over both protocol eras: capability advertisement, the
paged `skills/list` walk (direct and through `ManagedSkillsState`),
`skills/get`, the `-32602` for an unknown URI, `resources/read` of a
skill file, and delegation of an ordinary resource through the
fixture's `resources/read` wrapper.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
Round 15 generated no new inline comments; all five suppressed findings
were real and unaddressed.
- SkillsScreen: claim the attempt BEFORE issuing the request, for both the
SKILL.md preview and `skills/get`. Recording it only on settle left a
window where an older request that happened to resolve first was still
considered current and published while a newer one was in flight —
`verifyRow` already claimed its row up front, these two did not. Tests
answer the OLDER request first and assert nothing is published.
- SkillsScreen: "No skills listed", not "No skills". SEP-2640 lets a server
return an empty or partial catalog and says an empty result is not proof
it has none — an unlisted skill is still fetchable by URI — so the old
copy had the tool asserting something the protocol explicitly does not.
- SkillsScreen: each row's Verify button gets an `aria-label` carrying its
URI. Every row's visible text is "Verify" and the URI cell is not
programmatically associated with the button, so a screen-reader user had
no way to tell which file each control checked.
- inspectorClient: attribute a rejected `skills/get` envelope with
`markResponseRejected`, so the Protocol tab stops rendering it as a clean
success while the screen shows an error. In the client rather than a
store because `skills/get` has none. Gated on `isClientDecodeRejection`,
with a test that a transport failure is NOT attributed.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
The review finally quoted the normative text, which is what I asked for
across five rounds before declining: SEP-2640's `skills/list` section says
"In protocol versions 2026-07-28 and later, the result also carries …
`ttlMs` and `cacheScope`." So the era-aware validation is in.
- skillsSchemas: `ModernListSkillsResultSchema` = the page plus the base
list envelope, with field shapes mirroring `ModernResultEnvelopeSchema`
in `listSalvage.ts` so this repo's two statements of a modern envelope
cannot drift. `InspectorClient.listSkills` picks it from the negotiated
era; the legacy shape stays permissive, because those are 2026-era
attributes a legacy server has no business sending.
Nothing else catches this: `skills/*` is consumer-owned, so it is absent
from the SDK's cacheable-method registry and a modern server answering
`{ skills: [] }` was reaching the conformance UI as a clean list.
- skills.ts: count `frontmatter.description` (and `name`) length in Unicode
CODE POINTS. `String.length` counts UTF-16 code units, so 600 non-BMP
characters measured as 1200 and a perfectly valid description was
reported `malformed-description` — a conforming server failed by an
off-by-encoding, which is the direction this module works hardest to
avoid. The Agent Skills reference validator uses Python `len()`.
- #2248 narrowed: the `skills/list` half is settled here; what remains is
whether `skills/get` carries the same attributes.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
The shared teardown deadline was decided on `remainingMs > 0` against
`Date.now()`. Both halves of that are noise-sensitive: the deadline is
enforced by a `setTimeout`, and a wall clock at millisecond resolution
can still read a hair short of it when the loop comes round, so the next
grant inherits a fractional budget and spends it on a request that cannot
possibly complete. The same run then issues one request or two depending
on scheduling — which is what makes the "shares one deadline across
grants" test intermittent on CI (#2252).
Measure the deadline with `performance.now()` (monotonic, so an NTP step
or a suspend cannot expire or extend the budget, and sub-millisecond, so
none is lost to rounding), and skip any grant reaching the loop with less
than MIN_REVOCATION_REQUEST_BUDGET_MS left. The skipped grant is already
reported as `failed`, so nothing is silently dropped — the needless call
to the authorization server is.
The CLI's outer per-plan budget in `sendPlans` shares both the shape and
the defect, so it gets the same treatment.
One consequence worth naming: a monotonic clock hands `revokeToken` a
fractional budget, and Node's `AbortSignal.timeout` throws
`ERR_OUT_OF_RANGE` on a non-integer delay — before the fetch, so the
request would never be sent and the revocation would report that as its
failure. `revokeToken` now rounds its own budget to whole milliseconds,
which also covers any other caller passing a fractional one.
Tests: the epsilon skip is pinned by a grant that lands inside the floor
but above zero (removing the floor fails it, verified); the fractional
budget by a `revokeToken` call at 19.996ms.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wEXtbs8UEHUMxDEAxbs99
Signed-off-by: cliffhall <cliff@futurescale.com>
All three findings were the same underlying inconsistency: URI comparisons
on raw strings, in a flow that elsewhere deliberately treats normalized
equivalents as the same resource. One `skillUriIdentity` helper now backs
every comparison, so they cannot disagree.
- skills.ts: `manifest-missing-self` compares identities, so a manifest
listing the RFC-equivalent `skill://demo/%53KILL.md` is recognized as the
entry's own file — it is fetchable as that file, so reporting it missing
was the tool disagreeing with itself.
- skills.ts: `skillEntriesMatch` normalizes the entry URI and every manifest
URI before comparing, so a server that canonicalizes an escape between the
listing and the fetch is not reported as a changed snapshot.
- SkillsScreen: the `wrongUri` check uses the same identity, so a
canonicalizing server is not accused of answering for a different skill —
the read path already accepts exactly that equivalence.
- skills.ts: apply the Agent Skills name grammar to the RAW value. Trimming
first let `" demo "` pass, and whitespace is not in the grammar — so an
entry could report "Conforms" with a name that can never equal its URI
path segment. The trimmed copy now only distinguishes absent from invalid.
- skills.ts: add `malformed-description` for a description above the
1024-character Agent Skills limit, with boundary coverage.
- inspectorClient-skills.test: justify the `as unknown as` per AGENTS.md —
both fields are `private` with no public setter, the asserted shape is
exactly what the class declares, and the alternative is a live connection.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
- skills.ts: apply the two RFC 3986 §6.2.2 percent-encoding normalizations
the URL parser does not — decode an escape standing for an unreserved
character, and upper-case the hex of every escape that remains. `URL.href`
leaves `%72eference.md` encoded, so a server echoing an RFC-equivalent
form of the URI we asked for was rejected by `onReadSkillFile` as a
different resource, and an encoded name segment produced a false
`name-path-mismatch`. Both are the tool calling a conforming server wrong.
- oauthResume.test: assert the Skills restore path. It was wired into the
setters but never checked, and the comprehensive present-value and
undefined-fallback cases omitted Skills entirely. Adds it to both, plus a
case restoring a REAL saved selection rather than the EMPTY value — a bug
that always wrote the default would have passed the others.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
- skills.ts: validate `frontmatter.name` against the Agent Skills format
(1–64 lowercase alphanumerics and hyphens, no leading, trailing or
consecutive hyphen). Checking only for non-emptiness let `Bad Name` read
as "Conforms" — and the name is not decorative: it must equal the URI
path segment, so a name that cannot appear in a URI is a contradiction
the entry cannot satisfy. Suppressed when the name is absent entirely,
which `missing-name` already reports.
- skills.ts: detect duplicates on the NORMALIZED identity. Containment and
the read that fetches the bytes both treat normalized-equivalents as one
resource, so `skill://demo/SKILL.md` and `skill://demo/x/../SKILL.md`
were passing as two distinct files while naming one. The finding still
reports the raw URI, and two different unparseable URIs stay distinct.
- SkillsScreen: run `checkSkillConformance` on the fetched `skills/get`
entry and treat an error — or an entry answering for a different URI —
as invalid (red), not as "a different snapshot" (yellow). A fresh
point-in-time read excuses a CHANGE; it does not excuse a violation, and
answering with another skill is never a refresh of the one requested.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
- skills.ts: stop sorting `resources` arrays recursively. Only the entry's
OWN manifest is a set; `frontmatter` is verbatim arbitrary JSON, so a
custom `frontmatter.metadata.resources` array was being sorted too and
two genuinely different frontmatters compared equal. The manifest sort is
now done once, at the top level, and every other array keeps its order.
- SkillsScreen: invalidate on the whole selected entry, not just its
manifest. The `skills/get` comparison covers `frontmatter`, so a refresh
that changed only a description left a stale "matches skills/list"
verdict on screen — computed against an entry that no longer existed.
Re-verifying after a metadata-only refresh is the cheap direction to be
wrong in; showing a match against a different entry is not.
- SkillsScreen: give each "Verify all" invocation a token, so a finalizer
can only ever clear its own batch rather than any batch with a matching
manifest key.
- SkillsScreen.stories: supply `onGetSkill`. Every story rendered the
"Fetch with skills/get" button, and clicking it threw.
On the batch token: the A → B → A sequence the review describes is not
actually reachable, because the button is disabled whenever the in-flight
batch's key matches the selection — returning to A finds it disabled, not
clickable. The token is defence in depth for the same property, and the
test asserts what is really guaranteed rather than the unreachable path.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
Two of these reverse round 4, which asked for the opposite. Where the
readings conflict I took the permissive one: a wrong tightening rejects
conforming servers, a wrong loosening only fails to report something.
- skills.ts: stop requiring the `skill:` scheme. SEP-2640 says a server
SHOULD use `skill://` and explicitly allows a domain-native scheme, so
round 4's requirement handed a conforming `github://…` skill a false
`malformed-uri` and skipped its name and root checks. Containment is
scheme-independent — it compares against THIS entry's own root — so the
traversal fix that requirement came packaged with is unaffected.
- skills.ts: the 512-entry and 16 MiB limits are warnings. Both are
SHOULD NOTs for a server and MAYs for a host, so calling them errors
contradicted the "error = a MUST was broken" contract round 4
established and told authors a permitted skill was invalid.
- skills.ts: `skillEntriesMatch` compares canonically — keys sorted,
manifest sorted by URI. `JSON.stringify` treated key order and manifest
order as differences, though neither carries meaning.
- SkillsScreen: a differing `skills/get` is "a different snapshot"
(yellow), not a disagreement (red). The SEP defines it as a fresh
point-in-time read, so a skill that changed since the listing
legitimately differs.
- useServerCommands: route `onGetSkill` through the command-scoped OAuth
recovery like every other server command. An expired authorization
rendered an error and stopped there — no reauthorization, no retry.
- test-servers/skills.ts: stamp the modern base result envelope
(`resultType` / `ttlMs` / `cacheScope`) on every skills result. The SDK
stamps it only for methods in its own codec, and `skills/*` are
consumer-owned, so a 2026-era connection was receiving results without
it. Unconditional rather than per era: the modern leg builds a server
per request, so there is no era to branch on at registration time, and
on legacy they are three members no codec inspects.
- composable-test-server: remove the `skills.directoryRead` option. It was
publicly settable and advertised a method nothing serves, producing the
exact false capability the fixture exists to help catch. `skills` is now
a plain boolean; the flag returns in phase 3 (#2248) with its handler.
Still not changed: whether a modern `skills/list` RESULT SCHEMA must
require that envelope. Stamping it server-side is free; requiring it
client-side would reject servers on a reading nobody has checked against
the normative text. #2248 owns settling it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
- SkillsScreen: actually call `skills/get`. The client method and its
tests existed but no production caller invoked it, so #2234's acceptance
criterion ("skills/get retrieves a single entry") was unmet and a server
author's required handler could not be exercised. The detail pane now
fetches the selected URI on demand and reports whether the fetched entry
AGREES with the one skills/list advertised — both describe the same
skill, so a disagreement is a server bug only a side-by-side fetch shows.
- core/mcp/sha256.ts: a dependency-free SHA-256, used when `crypto.subtle`
is absent. `SubtleCrypto` needs a secure context, and this app is
documented as servable over plain HTTP on a LAN IP — where every skill
verification threw and the UI reported a read failure for files it had
fetched fine. Checked against the FIPS 180-4 vectors and differentially
against WebCrypto.
- skills.ts: require the `skill:` scheme in `normalizeSkillUri`. Checking
only that a URI was hierarchical let `https://demo/SKILL.md` pass the
name and root checks — a manifest pointing anywhere on the web, reported
as conforming.
- skills.ts: `missing-digest` and `missing-size` are errors. Both are
required fields, and an omitted `size` is what lets a server slip past
the 16 MiB pre-fetch limit while the UI reports zero errors. `warning`
is now reserved for what is legal yet unverifiable — `"dynamic"`.
- SkillsScreen: key the "Verify all" batch guard to the manifest. A global
flag left a newly selected skill's button disabled until the previous
skill's reads settled — forever, if one hung.
Not changed, deliberately: whether a modern-era `skills/list` result MUST
carry the SEP-2549 caching attributes. #2234's analysis records it as open
and the review asserts the opposite; neither reading was checked against
the normative text. Leaving the schema permissive accepts a server that
omits them, while tightening on a wrong reading would reject conforming
responses — the more expensive direction. `skillsSchemas.ts` states this
and #2248 settles it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
- skills.ts: decide root containment on NORMALIZED URIs. A raw prefix
check passed `skill://acme/billing/refunds/../other.md`, which starts
with the advertised root but resolves outside it — a traversal the
conformance report was reporting as clean.
- skills.ts: `normalizeSkillUri` also rejects a relative string, so
`demo/SKILL.md` is `malformed-uri` rather than a skill path, and an
opaque-path URI (`skill:demo/..`), which the parser leaves un-normalized
and on which containment cannot be decided.
- skills.ts: `missing-description` is an error. SEP-2640 requires it, so
an absent one must not read as "0 errors" in the conformance summary.
- managedSkillsState: call `markResponseRejected` for a decode rejection,
as every managed list does. An invalid `skills/list` result was showing
in the Protocol tab as a clean success.
- SkillsScreen: per-row attempt token. The manifest key cannot tell two
verifications of the SAME row apart, so a double click (or a row button
pressed during "Verify all") let an older read finish last and overwrite
the newer verdict.
- SkillsScreen: disable "Verify all" while a batch runs. The concurrency
cap is per invocation, so repeated clicks stacked pools — 4, then 8,
then 12.
- SkillsScreen: include the finding index in each issue alert's key. Three
identical URIs produce two `duplicate-resource` findings with the same
code and URI, and React was free to drop the extras — hiding findings in
exactly the malformed input this view exists to inspect.
- test-servers/skills.ts: register `skills/list` and `skills/get` through
the PUBLIC `setRequestHandler` with explicit param schemas. The private
`_requestHandlers` map is now reached only to wrap `resources/read`,
which has to chain onto the SDK's handler rather than replace it — the
one thing the public API cannot express, and the comment now says so
instead of citing the tasks fixture.
- test-servers/skills.ts: raise `-32602` for an unknown `skills/get` URI.
A plain Error mapped to a generic server failure, making the fixture
non-conforming outside its three documented bad cases.
- clients/web/README.md: the paragraph named four contracts while still
saying the smoke "drives all three".
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
- SkillsScreen: key verdicts and React elements by manifest ROW INDEX,
not URI. The checker deliberately tolerates a duplicated URI so it can
report `duplicate-resource`; a URI key collided those rows into one
verdict, so verifying either updated both and "Verify all" raced two
different digest/size declarations into the same slot.
- SkillsScreen: hold the invalidation generation in React state keyed by
the manifest, not a ref bumped during render. `useValueChange` runs its
callback during render and requires setState-only purity — an abandoned
render left the ref incremented and silently discarded a live
verification.
- SkillsScreen: title a size disagreement "Size mismatch" and render its
reason. `verifySkillResource` catches it before hashing, so the alert
was showing "actual undefined" under "Digest mismatch".
- SkillsScreen: pass `contents` to ContentViewer so a base64 SKILL.md
renders. The text-block form substituted "" and painted a blank preview
for a file verification had just read correctly.
- skills.ts: add `malformed-size` for a size that is not a non-negative
safe integer, and exclude such values from the 16 MiB total. A negative
one could pull the sum back under the limit and hide a violation.
- managedSkillsState: make the overlap guard per-session instead of a
boolean. A disconnect during an in-flight walk left it set, so the
reconnect's own load no-oped and was never retried — permanently, if
the stale request never settled. A stale `finally` can no longer clear
the live session's guard either.
- skillsSchemas: require the `{ skill }` envelope for `skills/get`. The
accepted SEP settles it, and normalizing an inline entry would let a
non-conforming response past the one place that could report it.
- #2248 and the PR description: corrected — they said
`ReadResourceDirectoryResultSchema` was already declared, which round 1
removed. #2248 now owns defining it, and records the frontmatter
cross-check gap too.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
- skills.ts: report a manifest that omits the skill's own SKILL.md
(an empty list included), duplicate URIs, entries outside the skill
root, and a missing size. `Conforms` was reachable for manifests that
break invariants SEP-2640 states.
- skills.ts: cross-check the declared byte length before hashing. A size
that disagrees fails verification on its own — the digest is taken over
the bytes the server served, so agreeing with it says nothing about
whether the manifest describes them.
- skills.ts: copy the view instead of slicing its backing store in
`sha256Digest`. `SharedArrayBuffer.prototype.slice()` returns another
SharedArrayBuffer, which `crypto.subtle.digest` rejects — the cast
claimed to handle the exact input that would have thrown. No cast now.
- skills.ts: state the one obligation NOT checked here — that an entry's
frontmatter matches the fetched SKILL.md's. The digest cannot cover it,
and closing it needs a YAML parser, so it is tracked on #2248.
- managedSkillsState: cap the walk at LIST_MAX_PAGES. The repeated-cursor
guard only catches a server stuck on one cursor; endlessly unique ones
walked forever. Raises rather than truncating, like the salvage walk.
- managedSkillsState: gate every write on a session generation, so a walk
that resolves after a disconnect or destroy cannot repopulate a cleared
store or deliver the previous session's skills into the next.
- inspectorClient: send a cursor when it is `!== undefined`, not when it
is truthy. An opaque cursor may be `""`, and dropping it re-requested
page one — which the store then reported as a repeated-cursor failure.
- SkillsScreen: key verdict invalidation on the manifest (URI + digests +
sizes), not the URI alone. A Refresh that changed the manifest left a
green badge attached to a digest nothing had checked.
- SkillsScreen: epoch-guard every read continuation, so a fetch that
resolves after the selection moved on cannot write into the new one.
- SkillsScreen: bound "Verify all" to 4 concurrent reads. A conforming
manifest may hold 512 files.
- skillsSchemas: drop the guessed `resources/directory/read` result
schema. Nothing calls it, so an unverified shape could sit wrong
indefinitely; phase 3 adds it against the normative text.
- skills-http.json: declare the extension bare. It advertised
`directoryRead: true` with no handler, so Connection Info reported
"Supported" for a method that answers -32601.
- types.ts: restore the Tasks doc comment the Skills interface displaced.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
Adds detection, enumeration, and conformance checking for the Skills
extension (`io.modelcontextprotocol/skills`) — phases 1 and 2 of #2234,
which is everything its Acceptance list names.
Skills is a *server*-declared extension, read off the connecting server's
`capabilities.extensions`, so it is deliberately absent from
`ADVERTISABLE_EXTENSIONS` — that registry is what the Inspector advertises
and the user toggles, and an entry there would be a meaningless toggle.
`skills/list` and `skills/get` are consumer-owned extension methods that
neither era codec defines, so the SDK's era gate skips them and they go out
as ordinary `client.request` calls with explicit result schemas. The
raw-wire channel modern `tasks/*` needs is not used, and the Skills tab is
not era-gated: a legacy-era server that declares the extension is serving it.
The checks are the point, not the list view. `core/mcp/skills.ts` reports
each obligation SEP-2640 states — the name/path invariant, the digest
format, the 512-entry and 16 MiB limits, and `resources: "dynamic"`, which
means integrity cannot be verified at all. Digest verification hashes the
fetched bytes with WebCrypto and returns a mismatch with both digests
attached rather than throwing, because showing a mismatch loudly is the
whole value proposition.
Files are fetched on demand: SEP-2640 is explicit that a `resources/read`
of a `SKILL.md` is not a load and confers no standing, so none of the SEP's
host machinery is implemented.
The `skills-http` fixture serves four skills over two pages, three of them
deliberately non-conforming — without those the verification code is
untestable.
Phase 3 (CLI, TUI, `resources/directory/read`, paged mode) is #2248.
Closes#2234
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kfrH3uRNUM4JAk1reKtyY
Signed-off-by: cliffhall <cliff@futurescale.com>
#2222 reported that `core/auth/revocation.ts` breaks a client secret
containing `+`, on the basis that `encodeURIComponent` leaves `+` bare.
It does not — it escapes it as `%2B`. The characters it leaves bare are
exactly `!'()*-._~` and alphanumerics, every one of which a form-
urldecoder passes through unchanged, so its output decodes identically
under both algorithms; verified over every code point up to U+2FFF.
Switching to `URLSearchParams` would be the literal algorithm §2.3.1
names and a small regression: it encodes a space as `+`, which a lenient
server decoding with `decodeURIComponent` alone reads as a literal `+`,
while `%20` is understood by both. The encoder is therefore unchanged
and the reasoning is recorded on it.
The report's second half stands and is the real defect: the fixture
decoded with `decodeURIComponent`, the encoder's own inverse, so the
round trip succeeded for every input by construction and no test could
have failed on an encoding mistake. `/oauth/revoke` now runs a genuine
RFC 6749 Appendix B decode, with unit cases for `+`, a space, `:` and
`%` (asserted on the wire and through an independent decoder), an
end-to-end client whose secret is base64 with a `+` in it, and a guard
that an unencoded credential is refused — the case that separates the
two decoders.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhVaufrEZAfFAXcg6456hK
Signed-off-by: cliffhall <cliff@futurescale.com>
- `useEmaIdpLoginState` attributed a read to the wrong issuer. A bare
`EmaIdpLoginState` carries the previous issuer's answer over to a new one
until a fresh read lands — and if that read fails, indefinitely, so the
settings surface reports "logged in" for an IdP nobody authenticated
against. Round 1's `.catch()` made that worse by design, and the test
added with it asserted the wrong behaviour outright.
State is now the pair (issuer, value) and `loginState` derives from it, so
a mismatch reports "none". A monotonic read token — the device
`useInitialConfig` already uses — drops completions that were overtaken,
including a read still in flight when `logout` clears the session; issuer
keying cannot catch those, since both carry the same issuer. Both guards
are pinned by tests verified to fail without them.
Deriving the value also removed the last synchronous commit on that path,
so the `set-state-in-effect` suppression is gone — one fewer than the PR
started with.
- The draft-seeding change had no test that could tell it from the effect
it replaced: the regression is a committed frame, and RTL flushes passive
effects before any assertion on `result.current`. Both hooks now have a
commit-level trace recorded from inside the tree, asserting the previous
target's (or session's) draft is never committed for the new one. Both
were verified to fail against the effect implementation.
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>
- `useEmaIdpLoginState`: the effect-triggered `refresh()` was discarded with
`void`, but it does not own its failures — `getEmaIdpLoginState` awaits
`storage.getIdpSession`, which rejects when the backend is unreachable.
Terminate with `.catch()` and leave `loginState` untouched, as `logout`
already does. Covered by a new test that also asserts no unhandled
rejection escapes.
- Correct the history: the plugin was *client-local*, declared by both
`clients/web` and `clients/tui`. The root could reach neither, since Node
resolution walks up rather than down — that, not web-exclusivity, is why
`core/react/` went unlinted.
- Correct the enforcement claim: `clients/tui` registers the plugin but
deliberately enables only `rules-of-hooks` and `exhaustive-deps`, so
`set-state-in-effect` and `refs` hold for `clients/web` and `core/react/`
only. Says so in AGENTS.md and in the Copilot mirror, which would
otherwise have reviewers cite rules the TUI gate does not run.
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>
`eslint-plugin-react-hooks` was a `clients/web` devDependency only, and each
client's `eslint .` is scoped to its own directory — so the whole hook rule
set had never looked at `core/react/`, a directory of nothing but React
hooks. "Neither surface has JSX" was the stated reason and was never a good
one: the rules judge hooks, not JSX.
Add the plugin at the root and apply it in a `core/react/**` block (scoped
there rather than to all of `core/**`, since the rules key off the `use`
prefix), with `exhaustive-deps` promoted to `error` as `clients/web` does.
Resolve the 15 findings it then reports:
- `useSettingsDraft` / `useClientSettingsDraft` seed their draft during
render instead of in a `targetId`/`opened`-keyed effect, so the previous
target's values never reach the DOM — the same rule `clients/web` spells
`useValueChange`. Their "latest value" refs move from render-time writes
into an effect; every reader (the debounce timer, `flush`, `onChange`)
runs after a commit, so a post-commit write is what they need.
- The three async loaders keep their effects behind justified inline
disables: `set-state-in-effect` follows a call into an async function
without modelling the `await`, verified against a minimal hook whose only
setState is in a continuation.
- `useInitialConfig`'s cleanup bump keeps reading `generation.current` at
teardown — the rule's "copy it into a variable" advice would restore a
stale request token and let a superseded response commit.
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>
Copilot review round 2.
The contract claimed an unstable `read`/`whenAbsent` trips React's "The
result of getSnapshot should be cached" error. It does not. Measured on
React 19: an inline `read` closure throws nothing, logs nothing, and forces
no extra render pass. React's dev check calls getSnapshot twice within a
single render, where the closure is unchanged, so the cache answers both
calls identically and the warning never fires.
The real cost is quiet — a fresh value every render, defeating downstream
useMemo/React.memo/effect deps — which is a better reason to state the
contract than an error that never arrives.
Also stop requiring module scope for every fallback. A primitive
`whenAbsent` (`false`, `undefined`, `"disconnected"`) is stable under
Object.is and is passed inline throughout these hooks, so the rule
contradicted the code it was describing. Only object/array fallbacks need a
constant, which is what NO_TOOLS and NO_PAGINATION are.
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot round 3, four items:
- the snapshot "attempt token" was the stored serialization, which is not
unique: the snapshot records neither the authorization URL nor its
`state`, so two concurrent redirects for one server with unchanged UI
serialize identically. `OAuthResumeSnapshot` now carries an optional
`attemptId`, stamped per write and matched on clear. Optional because
an older build's snapshot, mid-redirect across an upgrade, has none —
and treating that as a match would strand a live callback.
- the resume-failure toast promised a retry even when the session had
ended and nothing was restored. Copy is now chosen by whether anything
is left pending; `authRecoveryAbandonedMessage` covers the other case.
- a connect-scoped redirect that failed left the connection at
"connecting" with the active-server lock held, since the redirect was
what would have ended the attempt. It now disconnects first, as the
sibling arm in `useConnectionLifecycle` does — scoped to that context,
because an ambient or step-up failure does not mean the session is dead.
- both terminal EMA step-up failure arms now drop the stored retry. A
later step-up does not overwrite the ref, so a retained operation could
be re-run by an unrelated authorization. The `interactive` arm keeps
it: that one is still on its way to a redirect.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Quk1hBUtyhkXowwMXzAnAY
Signed-off-by: cliffhall <cliff@futurescale.com>
Copilot review round 1.
The cache was keyed on the store and its revision alone, so a changed
`read` was answered with the previous reader's output, and with a null
store — where the revision is pinned at 0 — a changed `whenAbsent` was
ignored outright. Key on `event`, `read` and `whenAbsent` too.
This makes an unstable argument defeat the cache rather than silently
serve a value derived from the previous one, so React fails it with "The
result of getSnapshot should be cached" at first render. That is the
intended failure mode and is now documented as such: a loud error beats a
wrong list nobody can account for.
Also correct the docs, which described the helper as universal. That
misread useListError as a violation: its snapshot is the stored Error
instance, already referentially stable, so it subscribes with
useSyncExternalStore directly and needs no cache. The rule is
read-during-render; the helper is for getters that return a fresh value
per read.
Signed-off-by: cliffhall <cliff@futurescale.com>
Every state-subscription hook in core/react/ seeded local React state from
its store prop and re-synced it inside a useEffect. That shape paints one
frame of the previous store's data when the prop changes (switching
servers), and loses any event dispatched between the render that took the
snapshot and the effect that attached the listener.
Convert all 16 to useSyncExternalStore through a new shared
useStoreSnapshot, following useManagedListError (#1954).
useSyncExternalStore needs a referentially stable snapshot, and these
getters hand back a defensive copy, so TypedEventTarget now keeps a
per-event-type dispatch counter (getEventRevision) that the snapshot is
cached against. A contents comparison would not do: MessageLogState folds
a response into its request entry by mutating that entry in place, which a
shallow compare reports as unchanged. The bump lives on the dispatchEvent
override so no dispatch — including a hand-rolled CustomEvent — can bypass
it.
useInspectorClient is included though the issue did not list it; its nine
subscribed slices made the stale frame most visible. Its lastError stays
useState (accumulated from events, no getter to read back) but resets on
client swap during render rather than in an effect.
The settings-draft and async fetch hooks are deliberately untouched: the
former hold genuinely local editable state, the latter are I/O rather than
store subscriptions.
Also answers the issue's open question. react-hooks/set-state-in-effect
never fired here because eslint-plugin-react-hooks has never linted
core/react/ at all — it is a clients/web devDependency and the root config
loads no React plugin. Corrected the config comment that gave "no JSX" as
the reason; the gap itself is #2192, measured at 15 findings, none of them
in the hooks converted here.
Closes#1955
Signed-off-by: cliffhall <cliff@futurescale.com>
Three findings, all valid:
- `beginInteractiveAuthorization` navigated *before* awaiting provider
creation and flow-state recording, so a rejection could arrive after
the browser had been handed over — and the web catch clears the resume
snapshot on one. Fixed at the root: the navigation now resolves last,
after every fallible step, which makes every rejection the method can
produce a pre-navigation rejection. It is also better on its own
terms — a provider that cannot be built means the callback could not
have completed, so navigating first only bought a dead-end round trip.
- `resumePendingReauth` restored the pending slot unconditionally, which
could overwrite a newer challenge deferred while it was awaiting.
Restores only into an empty slot, so latest wins.
- the `authChallengeInteractive` catch re-read the active server rather
than the one the challenge arrived for. `serverId` is now captured
synchronously in the listener and used by both the body and the catch.
Three new tests, one per finding, each driving the interleaving rather
than the happy path.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Quk1hBUtyhkXowwMXzAnAY
Signed-off-by: cliffhall <cliff@futurescale.com>
Each of the five sites in `useOAuthRecovery` discarded a promise with
`void`, satisfying `@typescript-eslint/no-floating-promises` but not the
narrower rule AGENTS.md states — `void` only where the callee owns its
failures or the caller cannot await, with a comment saying which.
Each now picks a user-visible outcome:
- `prepareOAuthRedirect` clears the resume snapshot (so the next load
cannot read a redirect that never started as an *abandoned* one),
flags the server and raises the re-auth banner.
- the `authChallengeInteractive` handler flags and banners, where before
a rejection drew no UI response at all.
- `resumePendingReauth` restores the pending slot and toasts, so the
next trigger retries the deferred recovery instead of losing it.
- the `/oauth/callback` effect flags and banners what falls between its
existing arms — the client rebuild and the post-resume scope check.
- `handleStepUpAuthorize`'s EMA branch reports exactly as its `failed`
outcome arm does; the stored retry gets its own catch, since by then
the permissions leg succeeded and the failure is the command's.
The two surviving `void`s carry the justification AGENTS.md asks for.
Closes#2165
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Quk1hBUtyhkXowwMXzAnAY
Signed-off-by: cliffhall <cliff@futurescale.com>
