[Bug] Anthropic API Error: Reasoning extraction safeguard false positive on consecutive tool calls

Bug Description
Fable 5 safeguards false-positive, error detail [reasoning_extraction], on two consecutive Agent-tool builder dispatches. The prompt was a normal software-build brief (read a gate record, edit FastAPI code, run pytest, commit) with reporting instructions like "return a short summary, do not paste file bodies". Same prompt ran on Sonnet without a flag. Request IDs: req_011CeDgxtc5NNpyUpNAqBwjE and req_011CeDh2SSLMUvwmRscbjAfS.

Environment Info

• Platform: win32
• Terminal: null
• Version: 2.1.237
• Feedback ID: 0a1d729f-a9d5-4e49-ae3b-07ee84951d53

Errors

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