会话进行中创建工作区目录 500：并发写入防护排障流程

• You can reproduce folder creation during an active session and collect gateway logs.
• You can test in staging with non-critical workspace data.

1. Create a reproducible sequence: keep one conversation active while creating nested folders via API/UI.
2. Capture full 500 stack trace and identify whether failure is path validation, race condition, or permission edge case.
3. Apply fix/workaround: serialize folder-create operations per session and add bounded retry with idempotency key.
4. Re-run stress scenario (10-20 create operations during active chat) and verify no new 500 errors.

• Issue is still in active tracking; final upstream fix path may differ（需验证）.
• Do not disable path safety checks as a shortcut for passing this test.

This tip is aggregated from community/public sources and preserved with attribution.