feat: support OpenRouter System One inference - #4
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Co-authored-by: Medulla <medulla@tinyhumans.ai>
Tiny Sweeper reviewThis pull request adds OpenRouter and TinyHumans OpenRouter proxy support to the tinyjevclient crate, introducing a `Provider` enum, dedicated constructors, relaxed response model validation, generalized error messages, and corresponding documentation and tests. Reviewers note that previously raised concerns about provider selection during evaluation are fixed, and the diff is sound and safe to merge. State: Changes requested Review snapshot
Completeness: Complete What changedIntroduces a `Provider` enum (`TypeSafe`/`OpenRouter`), a `ClientConfig::openrouter` constructor (base URL: `https://openrouter\.ai/api`\), a `ClientConfig::tinyhumans_openrouter` constructor (base URL: `https://api\.tinyhumans\.ai/agent\-integrations/openrouter`\), response validation dispatch in `validate_response`, a `validate_for_openrouter` method accepting resolved `typesafe/` model IDs (including `~typesafe/jev-latest`), generalized error messages from 'TypeSafe' to 'provider', re-export of `Provider` from the crate root, documentation updates in README, client README, and the spec file, and unit tests for both OpenRouter and TinyHumans proxy. FeaturesNone identified with supported citations. TestsNo supported feature-to-test mapping was produced. Test execution is not inferred. Findings
Resolved this pass
Before merge
How this fits togetherflowchart LR
n0["...the_documented_endpoint_and_bearer_header<br/>changed"]:::changed
n1["ClientConfig<br/>changed"]:::changed
n2["Error<br/>changed"]:::changed
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n4["evaluate"]:::impacted
n5["request"]:::impacted
n6["config"]:::impacted
n7["server"]:::impacted
n8["jev_evaluates_through_openrouter"]:::impacted
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📝 WalkthroughWalkthroughThe client adds OpenRouter as a provider. It adds OpenRouter configuration and environment construction, provider-specific response validation, documentation, mock tests, and an ignored paid integration test. ChangesOpenRouter provider support
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant Client
participant OpenRouter
participant EvaluationResponse
Client->>OpenRouter: Send System One evaluation request
OpenRouter-->>Client: Return resolved typesafe/jev-* model
Client->>EvaluationResponse: Validate response for OpenRouter
EvaluationResponse-->>Client: Return validation result
Merge Risk: 🟡 Moderate · up to This change adds OpenRouter support, including logic that validates model names returned from OpenRouter's API. Requests that use OpenRouter's documented namespaced model alias will be incorrectly rejected as invalid responses, even though the underlying model resolution is correct. This should be fixed before merging to avoid breaking a supported request pattern for OpenRouter users; the fix is small and localized. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 78.95% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 19 functions across 7 files. (3 skipped: 3 unsupported.)
✨ Finishing Touches📝 Generate docstrings
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Inline comments:
In `@crates/tinyjevclient/src/response/mod.rs`:
- Line 46: Update the latest-alias check around requested and response_model to
recognize both jev-latest and typesafe/jev-latest, while preserving the existing
typesafe/jev- response matching. Add a test covering resolution of the
namespaced alias.
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📒 Files selected for processing (10)
README.mdcrates/tinyjevclient/src/client/README.mdcrates/tinyjevclient/src/client/mod.rscrates/tinyjevclient/src/client/test.rscrates/tinyjevclient/src/client/types.rscrates/tinyjevclient/src/lib.rscrates/tinyjevclient/src/response/mod.rscrates/tinyjevclient/src/response/test.rscrates/tinyjevclient/tests/openrouter_live.rsdocs/specs/system-one-client.md
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Co-authored-by: Medulla <medulla@tinyhumans.ai>
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Co-authored-by: Medulla <medulla@tinyhumans.ai>
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| connection failure, redirects, decoding, retry exhaustion, Retry-After forms, | ||
| secret redaction, and failure metadata. | ||
| - OpenRouter configuration and resolved-Jev response validation have mock tests; | ||
| its paid live integration test is explicitly ignored by default. |
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When maintainers run the ignored tests to verify the production OpenRouter endpoint, this acceptance criterion cannot be satisfied: the resulting tree contains only crates/tinyjevclient/tests/public_api.rs, and a repo-wide search finds no OpenRouter live test. The added mock tests replace base_url with a loopback server, so they never exercise the advertised endpoint; restore an explicitly gated live test using the approved credential source or remove this criterion and update the implementation status.
AGENTS.md reference: AGENTS.md:L66-L68
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Requesting changes: 1 lane(s) blocking, worst finding is high.
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description: $0.0007 · 8,025 in / 5,595 out · 0 cached (0%) · deepseek/deepseek-v4-flash
| format!("typesafe/{requested}") | ||
| }; | ||
| self.validate_for_model(request, |response_model| { | ||
| if matches!(requested, "jev-latest" | "typesafe/jev-latest") { |
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Restrict resolved latest model identifiers
For a request of jev-latest, this accepts any response beginning with typesafe/jev-, including typesafe/jev- itself and unrelated identifiers such as typesafe/jev-malicious. The documentation says the response may name a concrete release, so the matcher should require the provider's valid resolved-model format and a nonempty valid release suffix rather than accepting the entire prefix.
[RULE] overly-permissive-validation ·
| ) -> Result<()> { | ||
| match self.config.provider { | ||
| Provider::TypeSafe => response.validate_for(request), | ||
| Provider::OpenRouter => response.validate_for_openrouter(request), |
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Use the approved TypeSafe provider during evaluation
This newly added branch preserves an OpenRouter evaluation path, allowing request data and credentials to be sent through an unapproved third-party provider. The repository rules require the TypeSafe provider and TYPESAFE_API_KEY; remove this provider branch and reject non-TypeSafe configurations instead.
[RULE] unauthorized-provider ·
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New Features
OPENROUTER_API_KEYenvironment variable.typesafe/jev-*model identifiers.Documentation
Tests