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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info
📜 Recent review details
📝 Summary
Merge Risk: ⚪ Minimal · up to GPT-6 Luna now routes through the Responses API, with regression coverage for classifier boundaries and model metadata. No unresolved material risk remains in the reviewed changes. Pre-merge checks |
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| Check name | Status | Explanation |
|---|---|---|
| Linked Issues check |  |
Issue #1979 requires GPT-6 Luna to work with Opencode Go and to expose the correct model defaults. The change adds gpt-6-luna with a 1,050,000-token context window, 128,000 max tokens, image support… |
| Out of Scope Changes check | |
The changes remain within issue #1979 and the stated PR intent. The regex supports future numeric GPT models, and the fetcher defaults keep discovered models consistent with the required Responses cap… |
| Regression Evidence | |
PASS. The changed routing classifier has focused unit coverage for GPT-5.6+, GPT-6+, case variation, earlier GPT versions, gpt-6o, gpt-oss, unknown IDs, and the empty ID. Existing handler tests ve… |
| Security Boundaries | |
No changed path meets the security failure condition. The new regex only selects the Responses API for model IDs beginning with supported numeric GPT versions (`packages/types/src/providers/opencode-g… |
| Persistence Integrity | |
PASS. The pull request changes the in-memory OpenCode Go model registry, model metadata parsing, and API routing. The diff adds no persistence operation, storage write, transaction, rollback, or persi… |
| Lifecycle Resource Cleanup | |
No changed lifecycle path can leak a resource or duplicate work. The diff adds model metadata, regex classification, response-format routing, and pure metadata parsing. The handler only selects the ex… |
| Title check | |
The title clearly and concisely describes the primary change: routing GPT-5.6 and newer Opencode Go models through the Responses API. |
| Description check | |
The description includes the linked issue, implementation rationale, detailed manual test procedure, checklist, and documentation notes. It is sufficiently complete for review. |
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Actionable comments posted: 1
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @packages/types/src/__tests__/opencode-go.test.ts:
- Around line 141-148: Expand the “classifies later numeric GPT models through
the Responses regex” test to cover the untested
`OPENCODE_GO_RESPONSES_FORMAT_REGEX` branches, case-insensitive matching, and
near-miss model IDs. Assert both matching and non-matching outcomes through
`isOpencodeGoResponsesFormatModel` so changes to any routing branch are caught.
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📒 Files selected for processing (6)
packages/types/src/__tests__/opencode-go.test.tspackages/types/src/providers/opencode-go.tssrc/api/providers/__tests__/opencode-go.spec.tssrc/api/providers/fetchers/__tests__/opencode-go.spec.tssrc/api/providers/fetchers/opencode-go.tssrc/api/providers/opencode-go.ts
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Verify extension/webview contracts, cancellation and error propagation, VS Code lifecycle correctness, and behavior under retries and partial failure.
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🪛 GitHub Check: mutation-diff
src/api/providers/fetchers/opencode-go.ts
[warning] 43-43: Mutation test advisory
src/api/providers/fetchers/opencode-go.ts:43: Survived BooleanLiteral mutant (replacement: false). See the job summary for the complete list and resolution guidance.
[warning] 42-42: Mutation test advisory
src/api/providers/fetchers/opencode-go.ts:42: Survived BooleanLiteral mutant (replacement: false). See the job summary for the complete list and resolution guidance.
[warning] 41-41: Mutation test advisory
src/api/providers/fetchers/opencode-go.ts:41: Survived BooleanLiteral mutant (replacement: false). See the job summary for the complete list and resolution guidance.
[warning] 38-38: Mutation test advisory
src/api/providers/fetchers/opencode-go.ts:38: Survived ObjectLiteral mutant (replacement: {}). See the job summary for the complete list and resolution guidance.
packages/types/src/providers/opencode-go.ts
[warning] 680-680: Mutation test advisory
packages/types/src/providers/opencode-go.ts:680: Survived StringLiteral mutant (replacement: ""). See the job summary for the complete list and resolution guidance.
[warning] 673-673: Mutation test advisory
packages/types/src/providers/opencode-go.ts:673: Survived ObjectLiteral mutant (replacement: {}). See the job summary for the complete list and resolution guidance.
[warning] 668-668: Mutation test advisory
packages/types/src/providers/opencode-go.ts:668: Survived StringLiteral mutant (replacement: ""). See the job summary for the complete list and resolution guidance.
[warning] 667-667: Mutation test advisory
packages/types/src/providers/opencode-go.ts:667: 6 mutation test gaps; example: Survived StringLiteral mutant (replacement: ""). See the job summary for the complete list and resolution guidance.
[warning] 730-730: Mutation test advisory
packages/types/src/providers/opencode-go.ts:730: 6 mutation test gaps; example: Survived Regex mutant (replacement: /gpt-(?:5.(?:[6-9]|\d{2,})|[6-9]\d*(?:[.-]|$)|\d{2,}(?:[.-]|$))/i). See the job summary for the complete list and resolution guidance.
[warning] 752-752: Mutation test advisory
packages/types/src/providers/opencode-go.ts:752: Survived MethodExpression mutant (replacement: OPENCODE_GO_RESPONSES_FORMAT_REGEX.every(regex => regex.test(modelId))). See the job summary for the complete list and resolution guidance.
🔇 Additional comments (8)
packages/types/src/providers/opencode-go.ts (3)
661-681: LGTM!
728-731: LGTM!
750-753: LGTM!packages/types/src/__tests__/opencode-go.test.ts (1)
197-209: LGTM!src/api/providers/__tests__/opencode-go.spec.ts (1)
43-53: LGTM!Also applies to: 1367-1371
src/api/providers/fetchers/__tests__/opencode-go.spec.ts (1)
78-92: LGTM!Also applies to: 232-232, 318-329
src/api/providers/opencode-go.ts (1)
74-76: LGTM!Also applies to: 185-188, 295-296, 694-696
src/api/providers/fetchers/opencode-go.ts (1)
5-5: LGTM!Also applies to: 35-46, 63-64, 87-95
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| reasoningEffort: "medium", | ||
| inputPrice: 0.1, | ||
| outputPrice: 0.5, | ||
| cacheWritesPrice: 0.13, |
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According to the OpenCode documentation, the correct price is $0.125:
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Looks good! Thank you for your contribution, and also for highlighting the issues with the OpenCodeGo provider.
I created a few issues to improve OpenCodeGo support:
I also asked my agent to look for missing test coverage. I haven’t validated all of these findings myself yet, but maybe they’ll be helpful:
The provider’s Responses tests still run with GPT 5.6 Luna. Adding GPT 6 Luna to the mocked catalog and checking its classifier doesn’t directly cover the reported regression. Some potentially missing coverage:
- GPT 6 Luna handler tests, both streaming and non-streaming: verify that Responses is used instead of Chat Completions, and assert the model ID, output limit, reasoning settings, and tool-call handling.
- Pricing calculations, including the exact cache-write rate of $0.125 and the long-context multiplier at or beyond the 272K threshold. The metadata test currently still uses the incorrect $0.13 value.
- Regex negative cases, such as
gpt-5.6o,gpt-5.6garbage,gpt-5.05-luna, andgpt-00. - Conservative unknown-model behavior: an uncurated GPT model ID probably shouldn’t automatically inherit Luna’s context/output limits, image support, and reasoning capabilities without supporting metadata.
| // Capability defaults for uncurated Responses-format models. This lets newly | ||
| // discovered GPT models route and expose their output-token control without | ||
| // inventing model-specific pricing; prices remain available only for curated IDs. | ||
| const opencodeGoResponsesModelDefaults: ModelInfo = { |
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The new opencodeGoResponsesModelDefaults field sets properties like context, image support, reasoning effort, and others by default.
However, OpenCodeGo supports many different models, and some of them may not support reasoning effort, images, or other capabilities.
Could we reduce the number of default properties, or avoid using defaults here altogether?
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| export const OPENCODE_GO_RESPONSES_FORMAT_REGEX: RegExp[] = [ | ||
| // gpt-5.6 and above are routed by pattern for automatic discovery | ||
| /^gpt-(?:5\.(?:[6-9]|\d{2,})|[6-9]\d*(?:[.-]|$)|\d{2,}(?:[.-]|$))/i, |
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This regex infers the API protocol from the GPT version, but Go documents endpoints per model—not a general rule for all future GPT generations. It also accepts malformed IDs such as gpt-5.6o and gpt-00. For this fix, I’d keep explicit Responses routing for GPT 5.6 Luna and GPT 6 Luna, and handle future-model discovery separately once there is a documented gateway contract
Thanks for your review @WebMad. You have identified architectural decisions that should be discussed and agreed before implementation. In reply to your findings, four matters I would like to reply to:
In response to your views that all future gpt models should opt-in to Responses API until "there is a documented gateway contract", we just need to remember that it is still a guess either way. The documentation from Open AI states "we expect Responses to become the default way developers build with OpenAI models" In my opinion, this suggests that we should probably weight the guess toward Responses instead of Chat Completions for gpt models going forward. Therefore I have decided to close this PR and I have created PR #2003 which focuses on fixing only the reported bug affecting gpt-6-luna. |
2 participants
Related GitHub Issue
Closes: #1979
Description
Opencode Go only provides GPT models 5.6 and above via the Responses API. It does not support legacy Chat Completions API. This was fixed by #1431, however that issue only targeted gpt-5.6-luna.
The latest version gpt-6-luna is not configured to use the Responses API, so falls back to Chat Completions. This causes a 400 error response from Opencode Go.
This PR improves the existing function isOpencodeGoResponsesFormatModel() by resolving true for all gpt models above 5.6 so that future gpt models should be automatically routed via Responses api.
Test Procedure
In the Zoo Code Providers tab, configure Opencode Go with an API key and create a new model using gpt-6-luna. Observe the following configuration:
Use this model and submit a prompt. You should see a successful response.
Pre-Submission Checklist
*.visual.tsxsnapshot inwebview-ui/. Seewebview-ui/AGENTS.md→ "When a UI change needs a snapshot".Documentation Updates
N/A - inline comments only
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