Add CLAUDE.md with repo conventions for AI-assisted development

CLAUDE.md

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+# Faraday Agent Dispatcher
+
+## Stack
+Python 3.8+, asyncio, aiohttp, websockets, Click, PyYAML.
+
+## Project Structure
+- `faraday_agent_dispatcher/dispatcher.py` — Main Dispatcher class (async)
+- `faraday_agent_dispatcher/dispatcher_io.py` — Async WebSocket handler
+- `faraday_agent_dispatcher/executor.py` — Command executor
+- `faraday_agent_dispatcher/executor_helper.py` — StdOutLineProcessor, StdErrLineProcessor
+- `faraday_agent_dispatcher/config.py` — YAML/INI config management
+- `faraday_agent_dispatcher/cli/main.py` — Click CLI entry point
+- `faraday_agent_dispatcher/utils/` — Utility modules (logging, text, metadata)
+- `tests/unittests/` — pytest + pytest-asyncio tests
+
+## Async Patterns
+The codebase uses `async def` extensively:
+```python
+class Dispatcher:
+    async def register(self):
+        ...
+    async def connect(self):
+        ...
+    async def run_once(self):
+        ...
+```
+
+## Config
+- Primary format: YAML (`~/.faraday/config/dispatcher.yaml`)
+- INI fallback with migration to YAML
+- Sections for executor params and environment variables
+
+## Testing
+- Run: `pytest tests/`
+- Uses pytest-asyncio (0.18.3) for async tests
+- Fixtures in `tests/utils/testing_faraday_server.py`
+- Config tests use `@pytest.mark.parametrize`
+
+## Code Style
+- black (line length 119) + flake8 (max 120)
+- Pre-commit hooks configured
+
+## Git Conventions
+- Base branch: `dev`
+- Branch naming: `tkt_{iid}_{slug}`
+- Stage with `git add -u` (never `git add -A`)
+
+## CHANGELOG (REQUIRED for every change)
+Create `CHANGELOG/current/{iid}.md` (single line):
+```
+[FIX] Description of change. #{iid}
+```
+Types: `[FIX]` bug fix, `[ADD]` new feature, `[MOD]` modification, `[DEL]` removal.
+Always include the CHANGELOG file in your commit.
+
+## Common Pitfalls
+- Always create the CHANGELOG entry — MRs without it will be rejected
+- Use async/await throughout — the dispatcher is fully asynchronous
+- Executor configs are validated via control_dict and ParamsSchema
+- Test async functions with pytest-asyncio markers