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⚡ Make http_request tool async to prevent event loop blocking#3

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mudcube wants to merge 1 commit intomainfrom
perf/async-http-request-14459885260212713423
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⚡ Make http_request tool async to prevent event loop blocking#3
mudcube wants to merge 1 commit intomainfrom
perf/async-http-request-14459885260212713423

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@mudcube
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@mudcube mudcube commented Jan 27, 2026

Replaced blocking urllib calls with non-blocking aiohttp in http_request tool.

What:

  • Changed http_request from sync to async def.
  • Replaced urllib.request.urlopen with aiohttp.ClientSession.
  • Updated error handling to catch aiohttp exceptions.
  • Updated tests/test_tools_builtin.py to use AsyncMock and aiohttp mocking.

Why:

  • The previous implementation blocked the asyncio event loop during network requests, causing other tasks (like UI updates or other concurrent operations) to freeze.

Measured Improvement:

  • Verified using a reproduction script that a background "heartbeat" task continues to run smoothly during a 2-second HTTP request, whereas previously it would stall.

PR created automatically by Jules for task 14459885260212713423 started by @mudcube

This change refactors the `http_request` tool in `src/matilda_brain/tools/builtins/web.py` to use `aiohttp` instead of `urllib`.
This prevents blocking the event loop when the tool is executed in an async context, improving overall responsiveness and concurrency.

Benchmarks/Verification:
- Verified that concurrent tasks (simulated heartbeat) continue to run while `http_request` is waiting for a response (using a 2s delay endpoint).
- Existing unit tests updated to test async implementation and pass.

Co-authored-by: mudcube <101564+mudcube@users.noreply.github.com>
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