Problem

The harness package imports requests in AIO sandbox/client code, but requests is not declared as a direct dependency in backend/packages/harness/pyproject.toml. The import can work in the monorepo because another package happens to provide it, but standalone installs are not guaranteed to have it.

Impact

A clean install of deerflow-harness can fail at runtime with ModuleNotFoundError: No module named 'requests' when those code paths are imported or used.

Suggested Fix

Add requests as a direct dependency of deerflow-harness, or migrate these paths to an already-declared HTTP client such as httpx.

Tests

• Build/install deerflow-harness into a clean venv.
• Import the AIO sandbox/client modules that currently import requests.
• Verify imports succeed without relying on backend transitive dependencies.

References

• backend/packages/harness/deerflow/community/aio_sandbox/backend.py:9
• backend/packages/harness/deerflow/community/aio_sandbox/remote_backend.py:22
• backend/packages/harness/deerflow/infoquest_client.py:12
• backend/packages/harness/pyproject.toml:6