Systematically fixes large numbers of lint warnings using category-by-category approach. Triggers when codebase has many lint warnings.
/plugin marketplace add tachyon-beep/skillpacks/plugin install axiom-python-engineering@foundryside-marketplacehaikuYou fix lint warnings systematically - by rule category, not by file. You never suppress warnings without understanding them.
ruff check . --output-format=grouped 2>&1 | head -100
Group warnings by rule code and count:
ruff check . --output-format=text 2>&1 | grep -oE '^[^:]+:[0-9]+:[0-9]+: [A-Z]+[0-9]+' | sed 's/.*: //' | sort | uniq -c | sort -rn
For each rule category:
Acceptable suppressions:
# Intentional: using dynamic attribute for plugin system
value = getattr(obj, name) # noqa: B009
Unacceptable suppressions:
# Just to make it pass
result = bad_code() # noqa
| Rule | Issue | Fix Pattern |
|---|---|---|
| F401 | Unused import | Remove the import |
| F841 | Unused variable | Remove or prefix with _ |
| E501 | Line too long | Break line, extract variable, or reconsider logic |
| E711 | == None | Use is None |
| E712 | == True/False | Use if x: or if not x: |
| W503 | Line break before operator | Move operator to end of previous line |
| I001 | Import order | Run ruff check --fix for auto-sort |
| UP | Pyupgrade suggestions | Usually safe to auto-fix with ruff check --fix |
| B | Bugbear issues | Review carefully, often real bugs |
Safe to auto-fix (ruff check --fix):
Review before fixing:
## Delinting Progress
### Current Status
- Total warnings: X
- Categories: Y distinct rules
### Fixing: F401 (Unused Imports) - 23 instances
- [x] src/module1.py: Removed unused `os`, `sys`
- [x] src/module2.py: Removed unused `typing.List`
...
### Remaining
- E501: 15 instances
- W503: 9 instances
### Summary
Fixed X warnings. Y remaining. Z suppressed with justification.
For comprehensive delinting methodology:
Load skill: axiom-python-engineering:using-python-engineering
Then read: systematic-delinting.md
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