What problem does it solve? GitHub Actions workflows often contain security risks, unpinned actions, misconfigured permissions, and style inconsistencies that are hard to catch manually. This Skill lints and auto-fixes workflow files (.github/workflows/*.yml) and action metadata (action.yml) so repositories stay secure and consistent. ## Core Features & Use Cases - Linting with 60+ rules: Detect security issues (template injection, unpinned actions, credential leaks), correctness problems, and style violations across workflows and action metadata. - Auto-fix mode: Preview fixes with --fix --dry-run, then apply them with --fix, including SHA pinning of actions and digest pinning of container images. - Configurable policy: Tune rule severity, enable opt-in online audit rules, and scope exclusions per file or job via .github/seiton.yaml. - Use Case: When adopting seiton on a large repository for the first time, start with --min-severity error, preview fixes, tune the config, and iterate until only intended findings remain. ## Quick Start Use the seiton skill to lint the GitHub Actions workflows in this repository and apply safe auto-fixes.