Omit Codex Responses reasoning.summary auto for Terra/Luna - #532
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TheGreatAxios merged 2 commits intoAug 23, 2026
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ChatGPT Codex rejects summary "auto" for the gpt-5.6-terra / gpt-5.3-codex family (HTTP 400). Send effort only to match the Codex CLI catalog default_reasoning_summary=none.
…-request-at-turn-0-on Amp-Thread-ID: https://ampcode.com/threads/T-01a02c68-0d8d-777b-b717-81fb9a282023 Co-authored-by: Amp <amp@ampcode.com>
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Summary
ChatGPT Codex rejects
reasoning.summary: "auto"for gpt-5.6-terra / gpt-5.3-codex family models with HTTP 400 at turn 0. The Codex Responses adapter was always sendingsummary: "auto"wheneverreasoning_effortwas set. This PR omitssummaryand sends{ effort }only, matching Codex CLI catalogdefault_reasoning_summary=none.Test plan
reasoning.summary: "auto"(failed before fix; passes after){ effort }onlybun test tests/unit/codex-responses-adapter.test.tsgreen (28 pass)bun run typecheckgreenFixes CL-6893