Remove unused imports (F401) and duplicate/shadowed import
redefinitions (F811) across the codebase using ruff's safe
autofixes. No behavioral changes -- imports only.
- ~1400 safe autofixes applied across 644 files (net -1072 lines)
- __init__.py re-exports preserved (excluded from F401 removal so
public re-export surfaces stay intact)
- Re-exports that are imported or monkeypatched by tests but look
unused in their defining module are kept with explicit # noqa:
F401 (gateway/run.py load_dotenv; run_agent re-exports from
agent.message_sanitization, agent.context_compressor,
agent.retry_utils, agent.prompt_builder, agent.process_bootstrap,
agent.codex_responses_adapter)
- Unsafe F841 (unused-variable) fixes deliberately skipped -- those
can change behavior when the RHS has side effects
- ruff lints remain disabled in pyproject.toml (only PLW1514 is
selected); this is a one-time cleanup, not a config change
Verification:
- python -m compileall: clean
- pytest --collect-only: all 27161 tests collect (zero import errors)
- core entry points import clean (run_agent, model_tools, cli,
toolsets, hermes_state, batch_runner, gateway)
- static scan: every name any test imports directly from an edited
module still resolves
The primary injection vector in #1558 was search_files discovering
catalog cache files in .hub/index-cache/ via find or grep, which
don't skip hidden directories like ripgrep does by default.
Three-layer fix:
1. _search_files (find): add -not -path '*/.*' to exclude hidden
directories, matching ripgrep's default behavior.
2. _search_with_grep: add --exclude-dir='.*' to skip hidden
directories in the grep fallback path.
3. _write_index_cache: write a .ignore file to .hub/ so ripgrep
also skips it even when invoked with --hidden (belt-and-suspenders).
This makes all three search backends (rg, grep, find) consistently
exclude hidden directories, preventing the agent from discovering
and reading unvetted community content in hub cache files.
