Is your workflow running the code you think it is?
Enter a public GitHub repository. We check every action it uses, tell you which ones can change without you knowing, and give you the fix.
Runs in your browser. Nothing is stored.Paste a workflow insteadortry an example.
Why this matters
A tag like @v4 is a pointer. Its owner, or anyone who takes over their account, can point it at different code tonight. Your workflow file won't change, and your next run will execute it. In March 2025, 346 tags of tj-actions/changed-files were moved this way.