fix(opencode-go): normalize Grok web_search instead of dropping it - #5873
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OpenCode Go relays Grok on /zen/go/v1/responses to xAI and returns xAI's schema errors verbatim. Codex's hosted web_search carries external_web_access, so every opencode-go/grok-4.7 Responses turn failed before inference with "Argument not supported: external_web_access". grok-4.6 avoided it only through an exact-id hosted-tool-policy row that removed web search entirely; grok-4.7 joined the Responses wire without it. Run the existing xAI web-search normalizer for grok-* models on the exact Go Responses URL, and drop the policy row so Go Grok keeps live search. Sibling Go models (Luna, Muse Spark) accept the OpenAI fields and are unchanged.
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughThe Responses passthrough now provides the model ID and response URL to web-search normalization. Matching Grok requests to the OpenCode Go Responses endpoint receive xAI-compatible normalization. The built-in hosted-tool denial entry is removed, and tests and documentation describe the updated behavior. ChangesGrok web-search compatibility
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix · Severity of issue fixed: Low Sequence Diagram(s)sequenceDiagram
participant ResponsesPassthrough
participant normalizeXaiResponsesWebSearch
participant isOpenCodeGoResponsesUrl
ResponsesPassthrough->>normalizeXaiResponsesWebSearch: pass body, model ID, and response URL
normalizeXaiResponsesWebSearch->>isOpenCodeGoResponsesUrl: check URL for a Grok request
isOpenCodeGoResponsesUrl-->>normalizeXaiResponsesWebSearch: return URL match
normalizeXaiResponsesWebSearch-->>ResponsesPassthrough: return normalized request body
Merge Risk: ⚪ Minimal · up to The Grok web-search change appears ready to merge after normal checks; no outstanding behavior risk is established. Architecture SummaryArchitecture risk: 🔵 Low · up to The change affects 3 systems. Changed systems: Architecture concerns Review detailsSystems and components
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In `@src/adapters/openai-responses/passthrough.ts`:
- Line 416: Update the normalization flow around normalizeXaiResponsesWebSearch
and normalizeOpenCodeGoAdditionalTools so removing cached-only replay wrappers
does not shift current-turn Go wrappers across the _replayPrefixLen boundary;
promote or prune Go wrappers before removal, or adjust the prefix length after
removal. Add a regression test covering replayed cached-only search followed by
current-turn live search.
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src/adapters/openai-responses/passthrough.tssrc/adapters/opencode-go-additional-tools.tssrc/adapters/xai-web-search.tssrc/responses/hosted-tool-policy.tsstructure/providers/chat-compat.mdstructure/providers/xai-grok.mdtests/providers/opencode-go-grok46-responses.test.tstests/responses/responses-hosted-tool-declaration.test.ts
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…play prefix Omitting a replayed cached-only search emptied its additional_tools wrapper, and deleting that wrapper shifted the current turn below _replayPrefixLen, so Go promotion discarded the current turn's live search as history. On the Go route the emptied wrapper now stays in place; Go promotion removes every wrapper before the wire anyway. Direct xAI behavior is unchanged.
리뷰 · 우선순위 74 / 80OpenCode Go로 Grok에게 말을 시키면, 검색 도구에 이 변경은 주소가 정확히 src/adapters/xai-web-search.ts isOpenCodeGoGrokResponses - 이름이 src/responses/hosted-tool-policy.ts UNSUPPORTED_HOSTED_TOOLS - 목록이 비었습니다. grok-4.6은 지금까지 검색 도구가 빠진 채로 나갔습니다. 이제는 인터넷 검색이 켜진 채로 나갑니다. grok-4.7의 400만 고치는 변경이 아닙니다. src/adapters/xai-web-search.ts normalizeXaiResponsesWebSearch - 캐시 전용 검색만 남으면 메인테이너의 판단이 필요한 지점 grok-4.6을 쓰던 사람에게 검색이 새로 생기는 걸 받아도 되는지 정해 주세요. 너의 추천 합쳐도 됩니다. 같은 수정의 열린 PR은 없습니다. 합치기 전에 grok-4.6이 이제 검색을 한다는 점을 릴리스 노트에 한 줄 남기면 좋겠습니다. 접두사는 그대로 둬도 됩니다. 새 grok 모델을 Responses 목록에 넣기 전에 이 댓글은 grok-bot이 작성했습니다 |
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Summary
opencode-go/grok-4.7fails on every Codex turn before inference with400 Argument not supported: external_web_access. OpenCode Go serves Grok on/zen/go/v1/responsesby relaying to xAI and returns xAI's schema errors verbatim. Codex's hostedweb_searchtool carriesexternal_web_access(and sometimessearch_context_size), and OpenCode Go is not classified withsupportsOpenAiWebSearchToolFields: false, so both fields reach the wire. #2283 fixed the same error for the directxaiprovider only.grok-4.6avoided the error only through an exact-id row insrc/responses/hosted-tool-policy.ts(#3394) that removed hosted web search entirely. Whengrok-4.7joinedgrok-4.6on the Go Responses wire, it had no row and fell through unnormalized.This PR:
normalizeXaiResponsesWebSearch) forgrok-*models when the final request URL is exactlyhttps://opencode.ai/zen/go/v1/responses. It removesexternal_web_accessandsearch_context_size, mapsweb_search_previewtoweb_search, omits a cached-only (external_web_access: false) declaration instead of widening it to live search, and keepstool_choiceconsistent. The family prefix avoids repeating the exact-id miss.normalizeOpenCodeGoAdditionalToolsintoisOpenCodeGoResponsesUrland reuses it, so lookalike hosts, other Zen paths, and custom URLs are unaffected.grok-4.6, but that destination rejects two fields, not the tool. Go Grok now keeps live web search.Before:
web_search+external_web_access: trueonopencode-go/grok-4.7→ 400. After:[{"type":"web_search"}]is sent → 200 with realweb_search_calls. Sibling Go models are unchanged.Live probes against
https://opencode.ai/zen/go/v1/responseson 2026-09-26, one field per request:external_web_accesssearch_context_sizeweb_search_previewsearch_content_types/enable_image_search/user_location/filterssearch_content_types400 (already handled, #2442)Structure docs updated:
structure/providers/xai-grok.mdandstructure/providers/chat-compat.md.Verification
bun test tests/providers/opencode-go-grok46-responses.test.ts tests/responses/responses-hosted-tool-declaration.test.ts tests/providers/xai: 421 pass, 0 fail. The grok-4.6-specific drop cases were replaced with cases for grok-4.6/4.7 field normalization, cached-only fail-closed behavior,additional_toolspromotion, a replayed cached-only wrapper that must not shift the current turn below_replayPrefixLen, Luna preservation, and unrelated/lookalike destinations.bun run typecheck: passed.bun run structure:check: passed.bun run privacy:scan: passed.createResponsesPassthroughAdapterbuilt a request from a Codex-shaped body (web_search+external_web_access: true+search_context_size) and sent it to OpenCode Go.grok-4.7andgrok-4.6both returned 200 withweb_search_calloutput items. The same body through the released 2.65.0 proxy returns the 400.bun run test(full suite) did not complete locally: on this Windows host the runner hit its 900s lane limit (exit 124). The failures it did report are in unrelated areas and reproduce in isolation on this host:claude-desktop-first-party,claude-desktop-picker-routes(icaclstimeouts),chat-native-combo(EBUSYon rm),test-runner(.NET known-folder sandbox path),compatibility-provider-equivalenceandrouting-compatibility-boundaries(hook timeouts), andcli-helprecover-history. Full-suite coverage is left to CI.Checklist
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