GitHub Actions Lint Skill for Claude

GitHub Actions Lint Skill for Claude is a software testing product available on the Whop marketplace, created by ReadyStack and launched in October 2026.

On one real-looking workflow it found 22 problems: ubuntu-20.04 removed 2025-04-15, upload-artifact@v3 switched off 2025-01-30, windows-2019 removed 2025-06-30, a disabled ::set-output:: — each with the line and the replacement. Who it's for For teams whose builds and deploys run on GitHub Actions and who maintain the workflow files themselves. What breaks, and when GitHub removed the ubuntu-20.04 runner image on 2025-04-15 and switched off upload-artifact@v3 on 2025-01-30; a workflow still on them fails before your tests run. What you get • 13 dated checks (rules revision 2026.09, 2026-09-11): removed runner images, switched-off artifact actions… • Ask Claude "check our GitHub Actions workflows" and it runs the skill on every file in .github/workflows See it first The real output of the bundled example is on getreadystack.com/skills/github-actions-lint/ — free, no sign-up, so you see what it finds before you pay. Install in 30 seconds Unzip into ~/.claude/skills/, then ask Claude Code: "check our GitHub Actions workflows". Needs Node 16+. What it does not do It does not run your workflows, call GitHub or read secrets. FAQ Q: How is this different from asking Claude without the skill? A: The skill carries a dated rule table and a scanner that reads every file, so Claude quotes the exact date and line instead of guessing from memory. Q: How do I get the files? A: In your Whop library after paying: the lesson “github-actions-lint.zip”.

GitHub Actions Lint Skill for Claude has is priced at $12 (one-time payment).

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