feat: self-healing temperature retry (cross-provider safety net) - #23
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…afety net When a model newly rejects the `temperature` parameter, the provider now records it and retries the request once without temperature, instead of 400ing until the catalog static set is updated by hand. This class of bug hit users twice (gpt-5.5, then Opus 4.8). - new `src/duh/providers/temperature.py`: runtime-learned `_LEARNED_NO_TEMPERATURE` set + `omit_temperature` / `record_no_temperature` / `is_temperature_error` - OpenAI + Anthropic `send()`: temperature decision uses the learned set; on a temperature-related 400 (BadRequest), record the model and retry once without temperature. `stream()` honors the learned set. - Static catalog sets remain the fast path for known models; this only adds self-correction for unknown/new ones. Live-verified: with Opus 4.8 temporarily removed from the static set, send() hit a real Anthropic 400, retried without temperature, succeeded, and recorded the model. 1681 Python tests pass, mypy + ruff clean. Closes the open follow-up; memory bank updated to reflect it. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EkrekgzMAQko92UkjnXhHL
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Closes the open follow-up. This class of bug bit users twice — gpt-5.5, then Opus 4.8 — when a model dropped temperature before our catalog knew about it. Now the providers self-correct.
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Memory bank updated (task doc + activeContext/progress/README/toc); the open follow-up is marked resolved.
🤖 Generated with Claude Code
https://claude.ai/code/session_01EkrekgzMAQko92UkjnXhHL