feat: add stderr callback to capture CLI debug output #170
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Add stderr callback option to ClaudeCodeOptions that allows capturing stderr output from the CLI subprocess. This matches the TypeScript SDK's behavior and is useful for debugging and monitoring CLI operations. - Add stderr callback field to ClaudeCodeOptions - Update SubprocessCLITransport to handle stderr streaming - Add example showing stderr callback usage - Add e2e tests to verify functionality 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
ashwin-ant
approved these changes
Sep 27, 2025
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Summary
Changes
stderr: Callable[[str], None] | Nonefield toClaudeCodeOptionsSubprocessCLITransportto handle stderr streaming with async taskTest plan
python -m pytest e2e-tests/test_stderr_callback.py -vpython examples/stderr_callback_example.pydebug_stderrfield🤖 Generated with Claude Code