You found a public collection of AI agent definitions — maybe for Claude Code, maybe for Codex — and one looks like the role you're missing. The fast path: copy the file into your agents directory and try it. That path skips every step that would tell you what the file does before it runs with your permissions. Quick answer TL;DR: Treat every external AI agent definition as untrusted input until you've read the whole file, not the README. Check what it claims to read, write, an...