A copy-paste system prompt that has your coding agent (Claude Code, Codex, Cursor) build a self-improving agent system for any computer work.
fainir/most-capable-agent-system-prompt has 885 GitHub stars.
It currently ranks #5576 daily, #5131 weekly, #3568 monthly by momentum on Trending Repos; its best-ever rank is #3334.
Trending Repos first recorded it on Jun 22, 2026.