Compound Engineering Plugin

Compound Engineering is a plugin of 36 skills for AI coding agents, built around the idea that each unit of engineering work should make the next one easier. It runs on 14 agent hosts, including Claude Code, Cursor, Codex, Cline, OpenCode, Qwen Code, Pi, Oh My Pi, and GitHub Copilot.

The core loop has six steps: brainstorm the requirements, plan the implementation, work through the plan, simplify the new code, review the result, and compound the learning by writing it to a solutions folder in the repository. Later brainstorm and plan runs read those notes as grounding, so a lesson captured in one change carries into the next. Most of the effort is meant to go into planning and review rather than execution.

An autonomous skill runs the whole pipeline hands-off: it works from a plan or a debugging fix, simplifies, reviews and applies fixes, captures learnings, runs browser tests, and commits, then pushes, opens a pull request, and watches CI with a bounded repair loop when a remote exists. It does not merge unless you allow it.

Other skills cover strategy and product signals, ideation, debugging, explaining existing behavior, code optimization, prototyping, git and pull request workflows, browser and Xcode testing, and handoffs. Experimental Compound Packs let a team declare shared rules (conventions, security policies, stack-specific guidance) that planning draws on and review enforces across repositories.