CI/CD Audit Skill

Systematic audit of GitHub Actions workflows to cut the Actions bill (minutes + storage) and speed up CI without losing test coverage or deploy safety. Uses the gh CLI for live billing, run history, and storage data.

Step 0: Inventory the account and pipelines

Measure before optimizing. Only private repos consume the paid minute allowance; public repos get free minutes — don't spend effort there.

# Which repos actually cost money (private, active, recent pushes)?
gh repo list <owner> --limit 200 --json name,visibility,isArchived,pushedAt \
  --jq 'sort_by(.pushedAt)|reverse|.[]|select(.visibility=="PRIVATE" and .isArchived==false)|"\(.name)\t\(.pushedAt[0:10])"'

# Per repo: active workflows, run volume (last 14d), and runner types
gh api "repos/<owner>/<repo>/actions/workflows" --jq '.workflows[]|select(.state=="active")|.name'
gh run list --repo <owner>/<repo> --created ">=YYYY-MM-DD" --limit 200 --json databaseId --jq 'length'