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 original PR #17194 description claimed test_display_tool_preview.py
but only ever shipped test_display_todo_progress.py. Add the missing
coverage for the failure-suffix path:
- _trim_error: whitespace strip, length cap, File-not-found path collapse
- _detect_tool_failure: terminal exit codes, memory full, structured
{error}/{message} extraction, malformed JSON, None result
- get_cute_tool_message E2E: read_file failure, terminal exit-only,
terminal stderr message, memory full, success path, no-result path
Also update test_tool_progress_scrollback.test_error_suffix_on_failed_tool
to reflect the new behavior: the generic '[error]' fallback in cli.py
has been removed; failure suffixes now come from the result-aware
_detect_tool_failure (e.g. '[exit 1]', '[File not found: x]').
