- git_search.py: All 6 subprocess.run calls converted to asyncio.create_subprocess_exec
- search_tool.py: All 6 subprocess.run + 3 blocking file reads converted to async
- npx.py: Converted to asyncio.create_subprocess_exec with proper timeout
- uvx.py: Both subprocess calls converted to async with timeout handling
- open.py: Platform openers converted to async fire-and-forget pattern
All tools now use non-blocking async I/O for better concurrency.
Tests: 31/31 passing.
zeekay
dd0f3a9b5c