Mechanics that I found in the binary with a few agents, more information than I could glean from the GitHub page or the docs:

- A Chrome DevTools Protocol / Playwright client.

- macOS Seatbelt sandbox (--sandbox flag) with some special Node / v8 stuff.

- Sentry for crash reporting and Unleash for feature flags.

- A SKILL.md system mirroring Anthropic's skills convention.

- Subagents, an artifacts review workflow (slash commands), and conversation rewind.

- Telemetry redaction in several places (good?)

- go-git bundled in there.

- go-enry / linguist's entire language table: many file extension/syntax tags (Cairo, Stacks Clarity, Modelica, KiCad, etc.) bundled in there.

All in all, a 140 MB Go binary with its own browser control stack, sandbox, Git, language detector, skills runtime, and subagent system.

I'm good, I'll stick with pi and codex. Less is more my friends.