doc: update AGENTS.md

Author: observerw

AGENTS.md

@@ -4,13 +4,12 @@
 
 - Lint & format: `ruff check --fix && ruff format`
 - Type checking: `ty check <dir_or_file>`
-- Run tests: `pytest`
+- Run tests: `uv run pytest`
 
 ## Code Style Guidelines
 
 - Python: 3.12+ required
-- Imports & Formatting: use ruff
 - Types: Full type annotations required, use `lsp_client.utils.types.lsp_type` for standard LSP types
-- Error handling: Use tenacity for retries, `anyio.fail_after` for timeouts
+- Error handling: Must use concrete exception types
 - Async: Use async/await, `asyncer.TaskGroup` for concurrency
-- Structure: Follow capability-based protocol pattern in capability/ module
+- Structure: Follow capability-based protocol pattern in `capability/` module