Making a small developer tool agent native

As I've started using Claude Code and Codex more and more both in my development and also in other workflows I've grown to appreciate tools that work really nicely with it out of the box.

Consequently I've now given my webhook tester app an agent native mode to work in as well:

You either open the app as a human and copy the setup prompt, or just point Claude Code, Codex or another agent directly to https://webhook-debugger.dev/ - instructions for what to do will be waiting for them.