[BUG] `stop_reason` is always `None`

[notabene00]

Environment

• Platform (select one):
  • [x] Anthropic API
  • [ ] AWS Bedrock
  • [ ] Google Vertex AI
  • [ ] Other:
• Claude CLI version: <!-- output of claude --version -->1.0.10 (Claude Code)
• Operating System: N/A
• Terminal: N/A

Steps to Reproduce

1. update to v1.0.10
2. run claude -p "run ls" --output-format stream-json --verbose
3. look at the ouput

Expected Behavior

tool_use/end_turn/etc values for stop_reason

[bcherny]

Hey! This is a recent change, and was intentional, due to an implementation detail in the way streaming works. What were you relying on the stop_reason for, out of curiosity?

[ml0-1337]

@bcherny I created an app to notify on my macbook whenever stop_reason is end_turn. Can we have this back instead of null or None?

[github-actions[bot]]

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