Skill

generating-precommit

Use when a Python project needs pre-commit hooks for security scanning, linting, and formatting, or when migrating from black/isort/flake8 to ruff

npx claudepluginhub jugrajsingh/skillgarden --plugin pysmith

Tool Access

This skill is limited to using the following tools:

ReadWriteGlobAskUserQuestion

Preview

Create optimized .pre-commit-config.yaml for Python projects.

Supporting Assets

references/pre-commit-base.yaml

SKILL.md

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Last CommitFeb 18, 2026

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Generate Pre-commit Config

Create optimized .pre-commit-config.yaml for Python projects.

Tool Selection Rationale

Ruff replaces: black, autopep8, autoflake, isort, flake8, flake8-bandit

Still needed:

gitleaks - Secrets detection (not Python-specific)
pip-audit - Dependency vulnerabilities (not covered by ruff)
pre-commit-hooks - File validation, merge conflicts

Dropped:

bandit → ruff S rules cover security checks
black → ruff format is identical, faster
isort → ruff I rules
flake8 → ruff check

Workflow

1. Check Existing Config

Glob: .pre-commit-config.yaml

If exists, ask via AskUserQuestion:

"Merge hooks" - Keep custom hooks, update versions
"Overwrite" - Replace entirely
"Skip" - Don't modify

1b. Detect Redundant Tools

If existing config contains black, isort, flake8, autopep8, autoflake, or bandit, ask:

question: "Detected tools that ruff replaces. Migrate to ruff?"
header: "Migration"
options:
  - label: "Yes, replace with ruff"
    description: "Remove black/isort/flake8/bandit, use ruff instead"
  - label: "No, keep existing"
    description: "Keep current setup unchanged"

2. Generate .pre-commit-config.yaml

Read the base config from references/pre-commit-base.yaml and use it as the starting template.

Customizations to apply based on project context:

If no chart/ directory, remove the exclude: '^chart/templates/' from check-yaml
If project uses markdown files, uncomment the markdownlint section
If project uses Makefiles, uncomment the mbake section
If project uses Docker, uncomment the hadolint section
If project has strict typing, uncomment the mypy section

Copy the base config to .pre-commit-config.yaml with applicable sections uncommented.

4. Report

Created .pre-commit-config.yaml

Hook ordering (autofix first to minimize retries):
  1. Security:    gitleaks, pip-audit, detect-private-key
  2. Autofix:     whitespace fixers (end-of-file, trailing, line-ending)
  3. Ruff:        ruff-format THEN ruff --fix (format before lint)
  4. Validation:  check-ast, check-yaml/json/toml, debug-statements
  5. Git quality: no-commit-to-branch, check-merge-conflict
  6. Commits:     conventional-pre-commit (commit-msg stage)

Ruff replaces: black, isort, flake8, bandit, autopep8

Install: pre-commit install
Run all: pre-commit run --all-files
Update:  pre-commit autoupdate

Version Updates

Check latest versions before generating: gitleaks, ruff-pre-commit, pre-commit-hooks, pip-audit (all on GitHub releases).