I think the OP's page works because these coding agents identify themselves as the PR author so the creator can just search Github's issue tracker for things like is:pr+head:copilot or is:pr+head:codex
It seems like Claude Code doesn't do that? some preliminary searching reveals that PRs generated by people using Claude Code use their own user account but may sign that they used Claude, example https://github.com/anthropics/claude-code/pull/1732
It seems like Claude Code doesn't do that? some preliminary searching reveals that PRs generated by people using Claude Code use their own user account but may sign that they used Claude, example https://github.com/anthropics/claude-code/pull/1732