fix(opencode_go): inject default reasoning effort when unset - #775
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Organization UI Review profile: ASSERTIVE Plan: Pro Plus Run ID: 📒 Files selected for processing (3)
Included review availability: Your plan provides up to 4 included reviews per hour; 2 remain after this review. 📝 WalkthroughWalkthroughOpenCode Go now injects a configurable ChangesOpenCode Go reasoning adaptation
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The change injects and maps default reasoning effort for OpenCode Go requests, but requests containing both supported reasoning forms may not preserve the client-supplied top-level value. The PR is mergeable with explicit owner awareness of this bounded behavior risk. Sequence Diagram(s)sequenceDiagram
participant Client
participant ChatCompatible
participant adaptChatRequest
participant OpenCodeZen
Client->>ChatCompatible: Send chat completion request
ChatCompatible->>adaptChatRequest: Adapt request body
adaptChatRequest->>ChatCompatible: Add or preserve reasoning_effort
ChatCompatible->>OpenCodeZen: Forward compatible chat request
Poem
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Linked Issues checkExplanation The changes satisfy issue Full details: Docstring CoverageExplanation Docstring coverage is 57.89% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 19 functions across 3 files. (1 skipped: 1 unsupported.) Full details: Description checkExplanation The description explains the problem, implementation, behavior, configuration, scope, tests, documentation updates, and validation results. It satisfies the required Description section; the optional AI Generated section is not required.
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Inline comments:
In `@docs/providers/opencode-go.mdx`:
- Around line 90-100: Update the reasoning-effort mapping statement and table in
the OpenCode Go documentation to clarify that the mappings apply only to
recognized GoModel effort values; explicitly state that unrecognized values,
such as “turbo,” are forwarded upstream unchanged.
In `@internal/providers/opencodego/reasoning_test.go`:
- Around line 158-189: Add a scenario-focused Responses test alongside
TestStreamChatCompletion_InjectsDefaultReasoningEffort that exercises the
provider’s ResponsesViaChat translation, captures the upstream request, and
verifies an absent reasoning value is mapped to reasoning_effort "low". Reuse
the existing test server/provider setup and assert the translated request
payload.
In `@internal/providers/opencodego/reasoning.go`:
- Around line 34-35: Update the reasoning adaptation flow in the request
handling logic to prioritize the client-supplied flat reasoning_effort value
when both flat and nested forms are present. Check req.ExtraFields for the flat
field before the req.Reasoning branch, and call
providers.AdaptReasoningEffortRequest only when the flat value is absent; add a
regression test covering conflicting values in both fields.
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Configuration used: Organization UI
Review profile: ASSERTIVE
Plan: Pro Plus
Run ID: 3dae2bee-504c-4e57-86f2-b044d10d8b24
📒 Files selected for processing (6)
.env.templatedocs/providers/opencode-go.mdxdocs/providers/overview.mdxinternal/providers/opencodego/opencodego.gointernal/providers/opencodego/reasoning.gointernal/providers/opencodego/reasoning_test.go
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Confidence Score: 5/5No blocking failure remains. No accepted blocking findings remain after exercising the affected provider request paths.
 T-Rex LogsWhat T-Rex did
Reviews (2): Last reviewed commit: "docs(opencode_go): clarify reasoning eff..." | Re-trigger Greptile |
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3 participants
Description
Fixes #768.
Some OpenCode Zen models always think and reject requests that omit the reasoning parameter (
[1210] This model always engages in thinking and cannot be disabled; please use low, high, or max). The provider previously embeddedopenai.ChatCompatiblewith noAdaptChatRequesthook, so an absentreasoningread as "thinking off" upstream and every such request failed.This adds the hook (
internal/providers/opencodego/reasoning.go):reasoning_effort: "low"is injected on/chat/completions. Models that ignore the parameter are unaffected.none/minimal/low/medium→low,high→high,xhigh/max→max. Any other value passes through for the upstream to judge.OPENCODE_GO_DEFAULT_REASONING_EFFORTraises the default per deployment;none/offdisables injection entirely.Precedence:
reasoning.effortis GoModel's canonical field and wins when a request sets both it and a top-levelreasoning_effort— the same behaviorproviders.AdaptReasoningEffortRequestalready gives xAI, DeepSeek and Gemini. A top-levelreasoning_efforton its own is authoritative in the sense that matters here: the default is never injected over it.Provider-specific behavior: injection is scoped to the OpenAI-style
/chat/completionsdialect. Models routed to the Anthropic-native/messagesendpoint keep the thinking dialect and are untouched, and/v1/responsespicks the adaptation up throughResponsesViaChat.Tests cover injection when absent, the effort mapping table, a flat
reasoning_effortblocking default injection, the nested-over-flat precedence, the env override and its disable values, the streaming and Responses-via-chat paths, and the/messagespath staying unaffected. Docs updated indocs/providers/opencode-go.mdx,docs/providers/overview.mdx, and.env.template.go build ./...,go vet, andgo test ./internal/providers/... ./run/... ./internal/usage/... ./internal/admin/...pass.golangci-lintcould not run in this environment — the installed binary is built with Go 1.25 and the module now targets 1.27 — but CI lint is green.