I'd love a comparison to what's already out there. Don't vscode, antigravity, cursor etc all have agents too?

Yes. Antigravity switched to primarily be an agent management tool (the previous version of the product became Antigravity IDE). Additionally, most advanced tools automatically spawn subagents.

	▲	hoakiet98 5 hours ago \| parent [-]
		biggest difference is it's terminal first, and optimized for CLI agents. we don't prescribe a specific harness and instead try to work with any CLI harness you bring.