Ramp's In-House Coding Agent Now Authors 75% of Merged PRs, Built by a 5.5-Person Team

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The Pragmatic Engineer published a deep read on August 25 of Inspect, the coding agent Ramp built rather than standardizing on Claude Code or Cursor. Inspect authors 75% of Ramp's merged PRs and 90% of PRs in its own repo, passed 1 million total sessions in July 2026, and is maintained by roughly 5.5 people (four engineers, a director, a part-time PM) while 150+ Ramp engineers have contributed code. The stack is React/Vite on Cloudflare Durable Objects and SQLite, with Modal sandboxes provisioning in under 5 seconds and the open-source OpenCode harness underneath.