# Pull Request
## Summary
Describe what changed and why.
Closes #
## Type of Change
- [ ] Bug fix
- [ ] Feature
- [ ] Refactor
- [ ] Documentation
- [ ] Tests
- [ ] Dependency or tooling update
- [ ] Breaking change
## MCP / Runtime Impact
- [ ] Tool schema changed
- [ ] Tool behavior changed
- [ ] Shell execution behavior changed
- [ ] File read/write behavior changed
- [ ] Persistence or thread-id behavior changed
- [ ] No MCP/runtime behavior change
## Security Impact
- [ ] Filesystem access affected
- [ ] Shell command execution affected
- [ ] Mode restrictions affected
- [ ] State persistence affected
- [ ] No security-sensitive behavior changed
Notes:
## Testing
Commands run:
```bash
cargo fmt --all -- --check
cargo check --tests
cargo clippy --all-targets --all-features
cargo test --all-features
```
## Checklist
- [ ] I kept the change focused.
- [ ] I added or updated tests for behavior changes.
- [ ] I updated docs/templates when user-facing behavior changed.
- [ ] I verified failure paths where applicable.
- [ ] I did not weaken command, file, workspace, or thread-id safety.
## Additional Notes
Add migration notes, known limitations, or reviewer focus areas here.