fix(routing): resolve capability evidence the way the resolver resolves it - #2100
fix(routing): resolve capability evidence the way the resolver resolves it#2100ntdatt812 wants to merge 3 commits into
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Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughThe change updates routing capability evidence to use normalized model matching. Input modality evaluation now prioritizes ChangesCapability matching
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to The routing fix is localized and well tested, but the PR still reports that it has not been pushed to the latest dev commit; that required readiness step should be completed before merging. Possibly related PRs
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Inline comments:
In `@tests/routing-capability-model-matching.test.ts`:
- Around line 36-94: Add a focused test in the candidateCapabilityEvidence
model-matching suite that relies on a matching PROVIDER_REGISTRY entry while
leaving the provider unconfigured, then assert family matching resolves the
context window, input modalities, and reasoning efforts. Reuse the existing
registry/configuration helpers and preserve the current configured-provider
cases.
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src/routing/capability.tstests/routing-capability-model-matching.test.ts
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Reviewed as part of a four-PR batch (#2077, #2085, #2086, #2100) that applies the same The six migrated map reads are correct, and the "definite wrong answer" framing checks out: a missed Holding on one gap. The migration resolves noVisionModels: ["gpt-oss"],
modelInputModalities: { "gpt-oss:120b": ["text", "image"] }the runtime returns text-only — Also: Minor: the description says five tests; the diff has six. Happy to merge once the no-vision precedence lands with a regression for the conflicting-evidence case. |
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Reviewed as part of a four-PR batch with #2077, #2085, and #2086 — same idea at four call sites, so one shared contract verdict plus per-PR verdicts. Verdict: hold — the migration is incomplete in a way that matters here specifically. The six map reads are migrated correctly, and the context-window claim checks out: a raw miss falls through to the provider-wide What is missing: noVisionModels: ["gpt-oss"],
modelInputModalities: { "gpt-oss:120b": ["text", "image"] }the runtime returns text-only ( This is the same ordering bug #2086 fixes on the CLI surface, left unfixed on the routing surface — and it is worse here, because routing acts on this evidence. It can select a candidate for image work that execution then rejects. The PR's own stated goal is that the evidence agree with the resolver it describes, so this is a gap in its own terms rather than an added requirement. To land: check One test note: Also, the description is stale: the diff has six tests, not five, and the unfixed split should be 2 pass / 4 fail once the registry-family test is counted. |
리뷰 · 우선순위 28 / 80라우팅 evidence가 런타임 리졸버와 다른 맵을 읽는 버그를 고친다. 코드는
메인테이너 hold는 이 마이그레이션이 해결방안메인테이너가 지적한 이 댓글은 grok-bot이 작성했습니다 |
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Review feedback on lidge-jun#2100: the migration resolved `modelInputModalities` without first consulting `noVisionModels`, so the evidence still disagreed with the resolver it claims to describe. Given noVisionModels: ["gpt-oss"] modelInputModalities: { "gpt-oss:120b": ["text", "image"] } `isModelTextOnly` matches the no-vision list and returns true before it ever reads the modality map (src/vision/index.ts:32), so the runtime says text-only while `candidateCapabilityEvidence` reported `image: true`. This is worse here than on the CLI surface lidge-jun#2086 fixed: routing acts on this evidence, so it can select a candidate for image work that execution then refuses. Same ordering, same primitives as the merged lidge-jun#2086. Also strengthens the window oracle the review flagged: `not.toBe(8_000)` also passed for `undefined` and for any other wrong value, so it is now the exact expected number. Two new tests. The positive one is red without this change; the negative one (a model outside noVisionModels keeps its declared image modality) passes either way on purpose -- it guards the fix from over-reaching rather than demonstrating the defect. Against origin/dev the file is 5 fail / 3 pass; against this branch's previous commit, 1 fail / 7 pass.
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@lidge-jun the
noVisionModels: ["gpt-oss"],
modelInputModalities: { "gpt-oss:120b": ["text", "image"] }the runtime says text-only and the evidence said const noVision = modelInList(provider?.noVisionModels, modelId);
const modalities = noVision ? ["text"] : (…the existing chain…);I deliberately did not import Two tests. The positive one is red without the change; the negative one — a model outside The weak oracle is also fixed. You were right that Corrected counts, since the old ones were stale. The file is eight tests, not five. Reverting only Rebased onto One thing I want to state rather than bury: the full |
…es it
candidateCapabilityEvidence read modelContextWindows,
modelInputModalities and modelReasoningEfforts with bare lookups, while
every runtime reader of those maps goes through modelRecordValue, which
accepts a family entry for a tagged id.
With contextWindow 8_000, modelContextWindows {"gpt-oss": 131_072},
modelInputModalities {"gpt-oss": ["text"]} and modelReasoningEfforts
{"gpt-oss": ["low","high"]}, for gpt-oss:120b:
runtime 131_072, text-only, [low, high]
evidence {"contextWindow":8000,"tools":true,...}
The window is the worst of the three. It did not degrade to unknown --
it fell through to the provider-wide contextWindow, so routing acted on
a definite value belonging to a different model. That is exactly what
this module's "unknown is not zero" contract exists to prevent. The
other two dimensions simply went missing, which at least reads as
unknown.
A bare lookup also answered for prototype-shaped ids: a model named
"constructor" resolved Object.prototype.constructor as its evidence.
modelRecordValue uses hasOwnProperty, so that now resolves nothing.
Five tests; three are red without the src change, two are guards
against the fix over-reaching and pass either way. 68 tests green
across the six routing/capability files. tsc --noEmit clean.
The three registry lookups this PR changed are only reached when the provider is absent from the config, and every case in the file supplied one — so `registryEntry?.model*` went untested. Add a case that resolves `grok-4.6:latest` off the `xai` registry entry with no provider configured, asserting the window, the image modality and the reasoning efforts. It asserts the fixture's shape rather than its values, so registry churn does not turn into a false failure while real drift still does. Against origin/dev the new case fails with `Expected: 500000, Received: undefined`, which is the branch it is meant to hold. Thanks @coderabbitai for the catch.
Review feedback on lidge-jun#2100: the migration resolved `modelInputModalities` without first consulting `noVisionModels`, so the evidence still disagreed with the resolver it claims to describe. Given noVisionModels: ["gpt-oss"] modelInputModalities: { "gpt-oss:120b": ["text", "image"] } `isModelTextOnly` matches the no-vision list and returns true before it ever reads the modality map (src/vision/index.ts:32), so the runtime says text-only while `candidateCapabilityEvidence` reported `image: true`. This is worse here than on the CLI surface lidge-jun#2086 fixed: routing acts on this evidence, so it can select a candidate for image work that execution then refuses. Same ordering, same primitives as the merged lidge-jun#2086. Also strengthens the window oracle the review flagged: `not.toBe(8_000)` also passed for `undefined` and for any other wrong value, so it is now the exact expected number. Two new tests. The positive one is red without this change; the negative one (a model outside noVisionModels keeps its declared image modality) passes either way on purpose -- it guards the fix from over-reaching rather than demonstrating the defect. Against origin/dev the file is 5 fail / 3 pass; against this branch's previous commit, 1 fail / 7 pass.
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Summary
candidateCapabilityEvidencedescribes what the resolver will do with a candidate, and routing acts on it. It read three per-model maps with bare lookups:Every runtime reader of those maps goes through
modelRecordValue, which accepts a family entry for a tagged id —src/reasoning-effort.ts:108,src/server/effort-policy.ts:122,src/vision/index.ts:34,src/codex/catalog/provider-fetch.ts:612.Why it bites
{ "contextWindow": 8000, "modelContextWindows": { "gpt-oss": 131072 }, "modelInputModalities": { "gpt-oss": ["text"] }, "modelReasoningEfforts": { "gpt-oss": ["low", "high"] } }Measured on this branch's parent, for
gpt-oss:120b:The window is the serious one. It did not degrade to unknown — it fell through to the provider-wide
contextWindow, so routing weighed the candidate with a definite value belonging to a different model. That is the failure mode this module's own contract is written against:imageandreasoningEffortsmerely went absent, which at least reads honestly as unknown.There is a second, smaller thing the same change fixes: a bare lookup answers for prototype-shaped ids, so a model named
constructorresolvedObject.prototype.constructoras its evidence.modelRecordValueuseshasOwnProperty, so it now resolves nothing.After the change the evidence is
{"contextWindow":131072,"image":false,"reasoningEfforts":["low","high"],...}— matching the runtime on all three.Verification
Eight tests in a new
tests/routing-capability-model-matching.test.ts. Reverting only thesrcchange gives 5 fail / 3 pass:The three that pass on the old code are deliberate and are not evidence of the defect: exact-entry-beats-family, unrelated-model-still-falls-back, and a-model-outside-
noVisionModels-keeps-its-image-modality. Each guards the fix from over-reaching in one direction.Two tests assert ground truth before asserting evidence —
modelRecordValue(...)andisModelTextOnly(...)are pinned first, so the file is tied to the resolver's own answer rather than to a second copy of the rule.Blast radius, run locally on the rebased branch:
Full
bun run test: one unrelated failure,CL-03 ... preserves the output byte ceiling as output_byte_limitintests/lab-live-pinned-timeouts.test.ts. It passes 3/3 in isolation. That file's defaultfirstByteTimeoutMsis 30 ms, so under full-suite CPU contention the first-byte timeout fires before 16 bytes accumulate — a timing race. The file imports onlylib/lab-live-pinned-sender, nothing this PR touches. Flagging it rather than quietly calling the run green.bun run typecheck— exit 0.Related: same divergence class as #2042, #2059 and #2086, on the routing-evidence surface.
Review readiness checklist
This PR stays in draft until every box below is ticked. Tick all four boxes once the requirements are met:
All CI tests are green on my local testing.
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