Versioned Skills: compose stops dropping version pins, and turns record what they ran with - #4452
Versioned Skills: compose stops dropping version pins, and turns record what they ran with#4452chelojimenez wants to merge 5 commits into
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`run_eval_suite`/`run_eval_case`'s `compose.skills` declared its own narrower Zod object — `mode` and `skillIds` only. Zod strips unknown keys, so composing a stack with `versionPins` parsed clean and ran Latest: the exact arm the caller pinned away from, invisibly, in a comparison meant to tell two revisions apart. Compose now parses through `skillSelectionInput`, the schema every other skill-selection surface already used, hoisted above the run inputs the way `composeRunTargetInput` itself is (temporal dead zone; the environment ops that also use it sit far below). Compose inherits its relational refinements for free — a duplicate pin, or a pin for an unselected skill, is now rejected client-side instead of after a round trip. The two compose stack types carry `PlatformEnvironmentSkillSelection` rather than a third hand-written twin, so the pins reach `ensureAdhocEnvironment`, whose body type already accepted them. Also adds the `skillVersionPins` capability so a client can probe whether a deployment accepts pins before offering a version picker: through the v1 capabilities route (normalized with `=== true`, so an older backend reads false rather than undefined), the OpenAPI schema, and the SDK capabilities type as an additive optional. Tests cover both halves through the SCHEMA, the way a real caller arrives — `execute` on a hand-built object sails straight past the stripping this is about. Both fail on the parent commit. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Q4DPJguFhCqfv919mnnknq
Skills resolve backend-side but reach a turn through here, so this side
is the only one that knows what actually ran — and the backend now hands
down a ready-made provenance row per skill entry. This echoes it onto
the outgoing turn trace.
Echoed OPAQUELY, as `Record<string, unknown>`. A typed mirror would be
the fourth copy of a shape whose three existing copies all drifted, and
nothing here reads a field — typing it as a record is what keeps that
true.
`turnSkillProvenance(spec)` builds `{environmentAtTurn, skillsAtTurn}`
from the POST-narrowing spec, so plugin overrides are reflected. It is
deliberately NOT part of `runtimeSkills` or the effective-capability set:
skill delivery stays byte-identical, and a recording change that also
changed what reaches the model would be impossible to review. Entries
without a `provenance` row are skipped — on an older backend that yields
an empty list, which is honest about what this side can prove, where
assembling a row from the DTO's other fields would quietly omit
`modelRef` and `versionPinned`.
The merge onto `turnTrace` sits OUTSIDE the `isDirectChat` gate.
`resumeConfig` is gated because it is the restorable-resume surface;
provenance restores nothing, and gating it the same way would leave User
Testing — the most environment-driven surface there is — with no record
of what it ran.
`buildIngestBody` needs no edit: it serializes `turnTrace` whole, and the
fields ride inside it. That is by design, not an oversight — do not
"fix" it by adding them to the body builder's field spread.
Scenario runtime configs pass the row through tolerantly (any object
survives, a non-object drops), NOT through the `SKILL_CHANNELS` filter
its sibling fields use: that filter keeps unknown channels out of
delivery decisions, and this field reaches none.
Ids stay opaque strings here. The backend normalizes and tenancy-checks
every one and strips what fails.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q4DPJguFhCqfv919mnnknq
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Included review availability: Your plan provides up to 8 included reviews per hour; 2 remain after this review. WalkthroughThe SDK now supports validated skill version pins in composed stack selections and reports backend support through the Merge Risk: ⚪ Minimal · up to The change preserves requested skill-version pins in composed evaluations and records per-turn environment and skill provenance without changing skill delivery. No actionable merge-blocking risk remains beyond normal checks and review. Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
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Inline comments:
In `@mcpjam-inspector/server/routes/web/__tests__/chat-v2.environment.test.ts`:
- Around line 912-916: Update the afterEach cleanup to restore CONVEX_HTTP_URL
and CONVEX_URL conditionally: delete each environment variable when its captured
original value is undefined, otherwise assign the original value back. Preserve
restoration of existing values and apply this logic to both variables.
In `@mcpjam-inspector/server/services/environments/runtime.ts`:
- Around line 453-457: Update readScenarioEnvironment validation to reject an
empty ref.name before recording provenance, returning undefined when the
normalized environment name is "". Add a regression test covering a scenario
payload that omits environmentRef.name.
- Around line 467-474: Update the skillsAtTurn construction in
resolveEffectiveCapabilities to collect and validate provenance from both
spec.skills and serverSkills, preserving the existing filtering behavior. Add a
regression test covering a delivered server skill whose provenance appears in
the resulting skillsAtTurn.
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Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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docs/reference/openapi.jsonmcpjam-inspector/server/routes/v1/__tests__/environments.test.tsmcpjam-inspector/server/routes/v1/environments.tsmcpjam-inspector/server/routes/web/__tests__/chat-v2.environment.test.tsmcpjam-inspector/server/routes/web/__tests__/chat-v2.scenario-environment.test.tsmcpjam-inspector/server/routes/web/chat-v2.tsmcpjam-inspector/server/services/environments/__tests__/runtime.test.tsmcpjam-inspector/server/services/environments/runtime.tsmcpjam-inspector/server/utils/__tests__/chat-ingestion.test.tsmcpjam-inspector/server/utils/chat-ingestion.tsmcpjam-inspector/server/utils/scenario-runtime-config.tsmcpjam-inspector/server/utils/web-chat-turn.tssdk/src/platform/operations.tssdk/src/platform/types.tssdk/tests/platform/operations-compose.test.ts
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Review summary: I independently confirmed the three existing CodeRabbit findings on this PR, especially the important one that delivered captured MCP-server skills are omitted from The targeted Inspector SDK/server tests pass. Separately, this PR is plumbing - not the complete A/B experience: it adds no UI, agents still lack a public historical-version listing/selector (including |
… name Three review catches on #4452. **Captured MCP-server skills were delivered but not recorded.** `resolveEffectiveCapabilities` puts `spec.serverSkills` into the capability set and `allEffectiveSkills` hands them to the model exactly like authored ones — but `turnSkillProvenance` mapped only `spec.skills`. A turn therefore claimed to list what it ran while silently omitting every capture that ran, which is the one thing a provenance record must not do. Both channels now, captures appended after authored entries — the order the backend's own run snapshots pin them in. **An empty environment name is now rejected, not tolerated.** `readScenarioEnvironment` normalizes a missing `environmentRef.name` to `""`, and recording that exports `mcpjam.environment.name: ""`, which reads as a real environment called nothing rather than as absent provenance. Costs nothing in practice: a payload old enough to omit the name is old enough that its skills carry no `provenance` rows either, so `skillsAtTurn` would have been empty anyway. **Test cleanup restores env vars by deleting them when they were absent.** Assigning `undefined` back to `process.env` stores the literal string `"undefined"`, which leaks into later suites as a truthy Convex URL. The two describe blocks above this one already did it correctly; the one I added did not. Regressions for all three, each failing with the fix reverted — the serverSkills one at both the helper and the chat-v2 route, since the gap was between what the capability set delivers and what the helper reads. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Q4DPJguFhCqfv919mnnknq
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Review catch (#4452): the previous commit made `turnSkillProvenance` record captured MCP-server skills, but the harness never receives them — so a harness turn's trace asserted a skill the model had not seen. That is the one failure a provenance record must not have, and it was mine. The reviewer proposed fixing delivery instead. That turns out to be blocked, and the evidence is worth recording: a capture's runtime address is its namespaced `ref` (`<serverSlug>/<name>`), and `isValidSkillName` rejects any name containing `/`. Pushing captures into `runtimeSkillsOverride` would have every adapter skip them as `invalid-skill-name` — the trace would keep lying, just more elaborately. Delivering captures on the harness channel needs that addressing question decided first, which is P2 delivery work. So the record now follows delivery, which is what `skillsAtTurn` ("this turn ran with exactly these") always claimed to mean. `turnSkillProvenance` takes the delivery mode — the existing `EnvironmentSkillDelivery` tri-state, not a new vocabulary: emulated — every channel reaches the model (the emulated engine mints a tool per `allEffectiveSkills` entry, captures addressed by `ref`). Record everything. harness — only `runtimeSkills(spec)` reaches the adapter. Record authored + plugin; captures are not delivered. unsupported — the harness has no skill channel at all (Codex today). Nothing delivered, so record an empty list. That last case is the same lie one level up, and fixing only the capture half would have left the larger one standing. The computation moves after `resolvedExecution` so it uses the authoritative resolved engine rather than re-deriving one from the host config. Still purely a recording concern: what reaches the model is byte-identical either way, and there is still a test asserting that. Regressions at both levels — the helper for all three modes, and the chat-v2 route for a harness turn carrying a capture. The route one fails with the fix reverted. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Q4DPJguFhCqfv919mnnknq
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Inline comments:
In `@mcpjam-inspector/server/routes/web/__tests__/chat-v2.environment.test.ts`:
- Around line 1037-1039: Update the test around runEnvironmentTurn to also
assert that handleMCPJamFreeChatModelMock receives runtimeSkillsOverride
containing only the authored PROVENANCE skill, while preserving the existing
persisted skillsAtTurn assertion.
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Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
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Review catch (#4452): the harness-turn test asserted only the persisted `skillsAtTurn`. It would have passed with the capture present in `runtimeSkillsOverride` — i.e. with the record wrong in the other direction — so it did not actually pin the invariant it exists for. The invariant is that the record and the delivery agree, so the test now asserts both: `handleMCPJamFreeChatModel` receives the authored skill alone, and the trace records the authored skill alone. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Q4DPJguFhCqfv919mnnknq
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Preview watchdogThe "preview requested" state has been stuck for ~2825 minutes. Recover: re-run the Watchdog runs every 15 minutes; this comment updates in place when conditions change. |
Correcting my earlier
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| run | deploy | last observed state | duration |
|---|---|---|---|
8d609d7 |
ef2981a0 |
INITIALIZING (pre-build queue) |
20 min, never advanced |
cd60f41 |
fc610f08 |
BUILDING |
02:27:48 → 02:47:48, timed out |
On this head the Railway build did start and then ran past the 20-minute Wait for preview deploy to finish budget. So my earlier "nothing from this diff was ever compiled" reasoning does not apply here — I can't see Railway's build logs from this side and won't claim to know why the build is slow.
What still argues it isn't the diff: Build and Test compiles this exact commit in 5m45s (02:26:46 → 02:32:31) and passes, as do all four Inspector Tests shards, E2E Smoke, CodeQL, both Analyze jobs and Snyk. The diff is server TypeScript, SDK source and tests, plus docs/reference/openapi.json — no Dockerfile, Railway config, workflow or lockfile. A cold pr-4452 environment with no build cache exceeding a 20-minute wait is the more likely reading, but that is a hypothesis, not something I verified.
Separately, the watchdog is reporting a second, independent stuck state: Backend target: preview requested has been unresolved for ~6.6 hours — the backend preview was dispatched and never called back. That is not the same thing as the deploy timeout above; both are open.
Why I'm not applying the watchdog's recovery steps: it suggests re-running the workflow or pushing an empty commit. I already spent my one re-run on the earlier occurrence (it reproduced with a new deploy id), and I don't push empty commits to kick CI. Both remaining paths need someone with access to Railway project 3f2c3fa1-2e3d-4dc3-ab0b-70d9c78fa0b9 / env pr-4452 (2156b9b4-47a6-4779-9e6d-32abea24e824), or to the backend dispatch credentials the callback uses.
This gates only the internal preview URL, not correctness. Everything that exercises the code is green.
Generated by Claude Code
2 participants
Follow-up to #4431. Two commits: the P0 fix first, then the P1 echo plumbing.
Commit 1 — P0:
composesilently strippedversionPinsrun_eval_suite/run_eval_case'scompose.skillsdeclared its own narrower Zod object —modeandskillIdsonly. Zod strips unknown keys, so composing a stack withversionPinsparsed clean and ran Latest: the exact arm the caller pinned away from, invisibly, in a comparison meant to tell two revisions apart.Compose now parses through
skillSelectionInput, the schema every other skill-selection surface already used, hoisted above the run inputs the waycomposeRunTargetInputitself is (temporal dead zone — the environment ops that also use it sit far below). It inherits the relational refinements for free: a duplicate pin, or a pin for an unselected skill, is now rejected client-side instead of after a round trip. The two compose stack types carryPlatformEnvironmentSkillSelectionrather than a third hand-written twin, so pins reachensureAdhocEnvironment, whose body type already accepted them.Both regression tests go through the schema, the way a real caller arrives (MCP tool call, CLI flag parse) —
executeon a hand-built object sails straight past the stripping this is about. Both fail onmain.Also adds the
skillVersionPinscapability so a client can probe whether a deployment accepts pins before offering a version picker: v1 capabilities route (normalized with=== true, so an older backend readsfalserather thanundefined), OpenAPI schema, and the SDK capabilities type as an additive optional.No spec change was needed for compose itself — it is SDK-side composition and the REST target already documents
versionPins.openapi-types-parityandsdk-coveragestay green.Commit 2 — P1: turns echo the configuration they ran with
The backend now hands down a ready-made provenance row per resolved skill entry (MCPJam/mcpjam-backend#1175). This echoes it onto the outgoing turn trace.
Record<string, unknown>. A typed mirror would be the fourth copy of a shape whose three existing copies all drifted, and nothing here reads a field — typing it as a record is what keeps that true.turnSkillProvenance(spec)builds{environmentAtTurn, skillsAtTurn}from the post-narrowing spec, so plugin overrides are reflected. It is deliberately not part ofruntimeSkillsor the effective-capability set: skill delivery stays byte-identical, and a recording change that also changed what reaches the model would be impossible to review. There is a test asserting exactly that.provenancerow are skipped. On an older backend that yields an empty list — honest about what this side can prove, where assembling a row from the DTO's other fields would quietly omitmodelRefandversionPinned.isDirectChatgate.resumeConfigis gated because it is the restorable-resume surface; provenance restores nothing, and gating it the same way would leave User Testing — the most environment-driven surface there is — with no record of what it ran. There is a scenario-turn test that fails if someone moves it inside.buildIngestBodyneeds no edit and gets none: it serializesturnTracewhole, and the fields ride inside it. That is by design, not an oversight — please don't "fix" it by adding them to the body builder's field spread.SKILL_CHANNELSfilter its siblings use — that filter keeps unknown channels out of delivery decisions, and this field reaches none.Verification
npx vitest run server/— 7,642 passed, 43 skippednpm run test -w @mcpjam/sdk— 6,841 passed, 8 skippednpm run typecheckandnpm run test:checksgreen;server/tsconfig.jsonerror count unchanged frommain(188 pre-existing)mainwith only the source files revertedKnown gaps (accepted)
routes/v1/chat-session-turn.tsdelivers no environment skills yet (P2), so v1 API sessions legitimately record none.routes/mcp/chat-v2.ts(local) androutes/web/mcpjam-agent.tsare untouched.Companion PR: MCPJam/mcpjam-backend#1175 — that one carries a production crash fix (pinning a skill version and starting an eval run currently throws at run start) and is worth landing first. Deploy interleaving is otherwise safe in either order: an older backend drops these fields at its allowlist, and an older Inspector simply sends none.
Out of scope, per plan: P2 (Playground skills UI + version picker, v1 turn-route skill delivery,
list_skill_versions, CLIversions/name@vN,serverSkillSelectionproduct surface, Skills-screen history, detail-view provenance display) and P3.Generated by Claude Code
Note
Medium Risk
Changes eval compose inputs and chat persistence/trace shape; delivery is intentionally unchanged but provenance logic must stay aligned with harness vs emulated skill channels to avoid misleading traces.
Overview
Fixes
composesilently dropping skillversionPinsso a pinned eval stack no longer parses clean and runs Latest.run_eval_suite/run_eval_casenow share the sameskillSelectionInputschema as environment create/update, including client-side refinements for duplicate or unselected pins. AddsskillVersionPinson v1 environment capabilities (normalized to boolean), OpenAPI, and SDK types so clients can probe before showing a version picker.Records what each web chat turn ran with without changing skill delivery: new
turnSkillProvenancebuildsenvironmentAtTurnandskillsAtTurnfrom backend opaque provenance rows after execution is resolved — emulated turns include captured MCP-server skills; harness turns record only authored/plugin skills; unsupported harness channels get an empty list. Provenance merges intoturnTraceoutside theisDirectChatgate so environment-backed scenario turns are covered; direct/host turns omit it. Scenario runtime config passesprovenancethrough tolerantly.Reviewed by Cursor Bugbot for commit cd60f41. Bugbot is set up for automated code reviews on this repo. Configure here.
Summary by cubic
Fixes
composesilently stripping skillversionPins, so a pinned run no longer silently runs Latest, and records what skills and environment each chat turn actually ran with. Companionmcpjam-backendPR #1175 carries a production crash fix for pinned eval runs and is worth landing first; deploy interleaving is safe either way.Bug Fixes
runEvalSuite/runEvalCasenow parsecompose.skillsthrough the sharedskillSelectionInputschema, soversionPinssurvive and duplicate or unselected pins fail client-side.skillVersionPinscapability so a client can probe whether a deployment accepts pins before offering a version picker.New Features
environmentAtTurnandskillsAtTurnon the turn trace, echoed opaquely from backend rows so skill delivery stays byte-identical; the record follows what was actually delivered, so captured MCP-server skills appear only on emulated turns, never harness ones.isDirectChatgate so environment-backed scenario turns record what they ran; entries without provenance rows and blank environment names are skipped on older backends.Written for commit cd60f41. Summary will update on new commits.