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fix(vertex): honor project and location for API-key inference - #7266
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 5 files. (1 skipped: 1… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title clearly and concisely describes the main change: Vertex API-key inference now honors configured project and location settings. Linked Issues check Issue #7265requires Vertex API-key inference to honor configuredprojectandlocation, default project endpoints toglobal, retain express mode without a project, and leave ADC behavior unchang…Out of Scope Changes check The changes stay within issue #7265.src/adapters/google-vertex-endpoint.tscentralizes endpoint selection and adds validation, project encoding, and endpoint-specific replay namespaces that protect…Full details: Linked Issues check
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Explanation
Issue
#7265requires Vertex API-key inference to honor configuredprojectandlocation, default project endpoints toglobal, retain express mode without a project, and leave ADC behavior unchanged.src/adapters/google-vertex-endpoint.tsselects project mode only from a nonblank configured project for API keys, ignores ambient project and location variables for that path, validates location and model segments, encodes the project, and builds the project or express URL before credentials attach.src/adapters/google.tskeeps API keys inx-goog-api-keyand ADC on the bearer path. The reported adapter and thought-signature tests cover routing, fallbacks, validation, headers, and replay isolation, with 96 targeted tests passing.
Full details: Out of Scope Changes check
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Explanation
The changes stay within issue
#7265.src/adapters/google-vertex-endpoint.tscentralizes endpoint selection and adds validation, project encoding, and endpoint-specific replay namespaces that protect the required credential-bearing inference path.src/adapters/google.tsapplies the selection to Vertex inference. The added tests and provider documentation support the changed behavior. Model discovery and dashboard connection testing remain outside this PR, as stated in the current description. No unrelated feature or cleanup change is demonstrated.
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Full details: Docstring Coverage
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Explanation
Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 5 files. (1 skipped: 1 unsupported.)
Resolution
Write docstrings for the functions missing them to satisfy the coverage threshold.
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Keep lidge-jun#7266's project/location endpoint for API keys, but only when the provider configures project explicitly. Ambient GOOGLE_CLOUD_PROJECT, GCLOUD_PROJECT and GOOGLE_CLOUD_LOCATION stay ADC fallbacks, so a gcloud default in the shell cannot move an express-mode key onto another project. Endpoint selection now lives in src/adapters/google-vertex-endpoint.ts and also derives the thought-signature replay namespace. Every Vertex branch rejects a model id that is not a single path segment before credentials are attached.
Prefix the Vertex replay key with the endpoint kind and encode the project, so a configured project named "api-key" can no longer share express mode's thought-signature namespace.
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Actionable comments posted: 2
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Inline comments:
Review comments at
@docs-site/src/content/docs/reference/configuration/providers.md:
- Around line 369-372: Update the translated Vertex `project?` and `location?`
rows in the Japanese, Korean, Russian, and Simplified Chinese provider
documentation to match the English behavior: describe explicit project selection
and projectless express mode, state that API-key project endpoints default to
`global`, and limit the `GOOGLE_CLOUD_LOCATION` fallback to ADC.
Review comments at @src/adapters/google-vertex-endpoint.ts:
- Around line 22-25: Update the endpoint selection logic to trim
`provider.project` once and use the trimmed value in both the API-key and ADC
branches. Treat an empty trimmed value as unset, preserving express mode for
API-key requests and environment-based project fallback for ADC requests.
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📒 Files selected for processing: 7
docs-site/src/content/docs/reference/configuration/providers.mdsrc/adapters/google-vertex-endpoint.tssrc/adapters/google.tssrc/types/provider.tsstructure/providers/google.mdtests/adapters/google/gcp-adc.test.tstests/adapters/google/google-vertex-thought-signature.test.ts
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Trim provider.project once so a whitespace-only value keeps API keys on express mode and lets ADC use its environment fallback, and update the project/location rows in the seven translated provider references.
# Conflicts: # docs-site/src/content/docs/reference/configuration/providers.md
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Maintainer integration into dev (MAINTAINERS.md exception, actor lidge-jun, admin). This is maintainer integration, not an independent review or self-approval. Exact head: 18408d2 (contains origin/dev f443f49) Workflow runs at this head:
Decision record:
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Combines lidge-jun#7266 and lidge-jun#7280 on one request: a configured-project API key uses the project endpoint with location global, a projectless key stays on express, and in both the matched image nests in functionResponse.parts while the duplicate image moves to the marked orphan turn. Ambient project/location variables are set to conflicting values and restored.
) * fix(google): nest Vertex Argon tool-result images * fix(google): separate orphan images from Vertex Argon response batches * docs(google): clarify orphan result ordering guarantee * test(google): cover Argon signature replay with matched and duplicate tool images Seeds a real replay signature, then checks on one continuation that the matched image nests in functionResponse.parts, the duplicate image moves to the following marked user turn, and neither image's bytes leak into text parts. * test(google): cover streaming continuations and error results for Argon tool images The continuation request now runs with stream on and off, and isError results keep matched-image nesting and orphan-image placement. Both cases fail on the pre-#7280 serializer. * test(google): cover API-key project endpoints with Argon tool images Combines #7266 and #7280 on one request: a configured-project API key uses the project endpoint with location global, a projectless key stays on express, and in both the matched image nests in functionResponse.parts while the duplicate image moves to the marked orphan turn. Ambient project/location variables are set to conflicting values and restored. --------- Co-authored-by: JUN <jun@lidgeai.com>
2 participants
Summary
Vertex API keys ignored a configured project and location and always used the projectless express endpoint, so Gemini 4 Argon returned 404 from
us-central1even withlocation: "global"(#7265). With this PR, an API key uses/v1/projects/{project}/locations/{location}/...when the provider setsproject, defaulting the location toglobal; withoutprojectit keeps express mode. ADC behavior is unchanged.Closes #7265
Implementation and compatibility
global, validate the location before forming the authority, encode the project segment. Keys stay inx-goog-api-key; ADC stays Bearer with per-request service-account markers.GOOGLE_CLOUD_PROJECT,GCLOUD_PROJECTandGOOGLE_CLOUD_LOCATIONremain ADC fallbacks, so an unrelated gcloud default in the shell no longer moves an existing express-mode key onto another project (the first revision read them for API keys too).src/adapters/google-vertex-endpoint.ts; the same selection derives the thought-signature replay namespace (vertex:express:<model>/vertex:project:<encoded project>:<location>:<model>), so express and project endpoints never share signatures and ambient environment changes no longer move an express key's replay space./,?,#,\\,%,.., empty) before any credential is attached. Dotted and@-versioned ids are unchanged.provider.projectis treated as unset (CodeRabbit), so it never selects a/projects/%20/endpoint.reference/configuration/providers.mdin English and all seven translations),structure/providers/google.mdand theproject/locationtype comments state the auth-specific precedence./models+ Bearer builder (src/oauth/index.ts), so a connection-test result does not certify this inference path.Security review
Credential transport (API key and ADC Bearer) reviewed by an independent reviewer and the maintainer lane:
aiplatform.googleapis.comor<validated location>-aiplatform.googleapis.com); the location validator rejects authority-altering input before any header is set, and upstream redirects are manual.x-goog-api-keyorAuthorizationis attached; no new path routes a credential to another authority, and ambient environment can no longer redirect an explicitly configured API key to a different project.Verification
Automated checks
Head:
18408d2818fbd2a1d584fa64e56bcd45e5a42069= merge commit of devf443f49ed0af3a57873395779ddba44bc6412dd9(current dev tip, includes #7282 and #7283) into this branch. The only conflict was the Englishreference/configuration/providers.mdtable, resolved by keeping both dev's new Antigravity Argon quota row and this PR'slocation?row.Local validation was performed by the maintainer integration lane (not the original author) on the merged head:
bun test tests/adapters/google/gcp-adc.test.ts tests/adapters/google/gcp-sa-adapter.test.ts tests/adapters/google/google-vertex-stream.test.ts tests/adapters/google/google-vertex-http.test.ts tests/adapters/google/google-vertex-thought-signature.test.ts: 96 pass, 0 fail.bun run typecheck,bun run structure:check,bun run privacy:scan: exit 0.bun teston the fivetests/ci-workflows/docs-*.test.tsclaim files plustests/ci-workflows/file-size-ratchet.test.tsandtests/test-layout.test.ts: 210 pass, 0 fail.OCX_TEST_NO_QUEUE=1 bun test tests/adapters/google/in one process: 791 pass, 4 fail — the same four Antigravity roster/discovery cases that fail identically on unmodified dev when the directory runs in one process and pass in isolation; not caused by this PR.bun run test:changedat 90866e0 selected 1982 files, 43062 pass, 108 skip, 0 fail.bun run testwas not run separately: many maintainer worktrees on this machine share one Bun test lock. Hosted CI at this head: all required checks passed at18408d2818(test 1/4–4/4, gates, structure gate, docker smoke, api usage, storage policy, docs site build, keyring, npm-global, catalog async contracts, react-doctor, hygiene, enforce-target, CodeRabbit).The author's live check (404 → 200 for
gemini-4-argonon the project/global endpoint) covers the explicit configuration this PR keeps; the follow-up commits were verified with fixtures only.Checklist
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