Add CLAUDE.md and /release command

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/commands/release.md

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+Release a new version of responder to PyPI and GitHub.
+
+Usage: /release <version> (e.g. /release 3.6.0)
+
+If no version is provided, ask the user what version to release.
+
+## Steps
+
+1. **Verify clean state**: Run `git status` and ensure the working tree is clean. If not, stop and ask the user.
+
+2. **Run tests**: Run `uv run pytest -x --no-header -q`. If any fail, stop and report.
+
+3. **Bump version**: Update `responder/__version__.py` to the new version.
+
+4. **Update changelog**:
+   - Run `git log --oneline $(git describe --tags --abbrev=0)..HEAD` to get commits since last release.
+   - Add a new section in `CHANGELOG.md` under `## [Unreleased]` with the date, categorized into Added/Changed/Fixed/Removed.
+   - Update the compare links at the bottom of the file.
+
+5. **Lock deps**: Run `uv lock`.
+
+6. **Commit**: Stage `responder/__version__.py`, `CHANGELOG.md`, and `uv.lock`. Commit with message `Bump version to X.Y.Z and update changelog`.
+
+7. **Push and tag**:
+   ```
+   git push
+   git tag vX.Y.Z
+   git push origin vX.Y.Z
+   ```
+
+8. **GitHub release**: Create a release with `gh release create` including highlights and a link to the full changelog.
+
+9. **Build and publish**:
+   ```
+   uv build
+   uvx twine upload dist/responder-X.Y.Z*
+   ```
+   Note: This requires a PyPI token. If twine fails due to auth, tell the user to set `TWINE_USERNAME=__token__` and `TWINE_PASSWORD` and re-run, or run `! uvx twine upload dist/responder-X.Y.Z*` interactively.
+
+10. **Update GitHub release**: Edit the release to add a link to the PyPI page: `https://pypi.org/project/responder/X.Y.Z/`
+
+11. **Report**: Print a summary with links to the GitHub release and PyPI page.

CLAUDE.md

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+# Responder
+
+A familiar HTTP Service Framework for Python, by Kenneth Reitz.
+
+## Commands
+
+- **Tests**: `uv run pytest` (runs full suite with coverage)
+- **Single test**: `uv run pytest tests/test_responder.py::test_name -xvs`
+- **Lint**: `uv run ruff check .`
+- **Type check**: `uv run mypy`
+- **Build docs**: `cd docs && uv run make html`
+- **Build package**: `uv build`
+- **Lock deps**: `uv lock`
+
+## Architecture
+
+- `responder/api.py` — Main `API` class, the entry point for all apps
+- `responder/routes.py` — `Router`, `Route`, `WebSocketRoute` dispatch
+- `responder/models.py` — `Request` and `Response` wrappers around Starlette
+- `responder/ext/` — Extensions: CLI, GraphQL, OpenAPI, rate limiting
+- `responder/background.py` — Background task queue
+- `responder/formats.py` — Content negotiation (JSON, YAML, msgpack)
+- `responder/__version__.py` — Single source of truth for version string
+
+## Conventions
+
+- Python 3.10+ only. Use `from __future__ import annotations` where present.
+- Use `inspect.iscoroutinefunction` (not `asyncio.iscoroutinefunction`).
+- Tests use `api.requests` (Starlette TestClient) with `allowed_hosts=[";"]` or `["localhost"]`.
+- Werkzeug 3.1.7+ rejects invalid Host headers — use `localhost` when mounting WSGI apps in tests.
+- Version is in `responder/__version__.py`, bump it there.
+- Changelog follows [Keep a Changelog](https://keepachangelog.com/) format in `CHANGELOG.md`.
+- Compare links at the bottom of CHANGELOG.md must be updated when adding a release.
+- All deps managed via `uv`. Lock file (`uv.lock`) is committed.
+
+## Release Process
+
+1. Bump version in `responder/__version__.py`
+2. Add changelog entry in `CHANGELOG.md` (update compare links too)
+3. `uv lock` to refresh the lock file
+4. Commit: `Bump version to X.Y.Z and update changelog`
+5. `git tag vX.Y.Z && git push && git push origin vX.Y.Z`
+6. `gh release create vX.Y.Z --title "vX.Y.Z" --notes "..."`
+7. `uv build && uvx twine upload dist/responder-X.Y.Z*`