Claude Code's macOS computer-use preview can write Swift, compile/launch a menu-bar app, click through controls, and screenshot results in the same session—plus drive GUI-only tools and iOS Simulator when MCP/bash/browser tools aren't enough.
Builder runs Codex inside Grok Bot: a coding bot writes/fixes, a QA bot reviews, a PM bot manages them, then auto-merges and deploys to AWS plus iOS to TestFlight—one request, end-to-end.
MCP-connected runtime QA maps critical flows and entry points, then re-tests the blast radius of each Claude Code/Cursor/Codex change against live Postgres/Kafka/APIs/MCP tools—contracts, authz, OWASP, errors—before merge, with self-heal when behavior changes on purpose.
Functionize ships an MCP server so Claude Code/Cursor/Copilot hand change context to Studio, which builds/runs smoke or regression suites against the live app and returns the first failing step in-chat—closing the gap where agents never saw the product run.