EveryInc/compound-engineering-plugin

Compound Engineering is a plugin of 36 skills for AI coding agents. Rather than being a standalone program, it plugs into an existing agent host and steers how that agent approaches engineering work: it organizes work around a repeatable loop of brainstorming, planning, implementing, simplifying, reviewing, and recording what was learned so future runs can reuse it. It suits teams or individuals already using a supported agent who want a more structured, repetition-friendly workflow.

The working loop

The core loop is six skills: /ce-brainstorm writes a requirements-only plan, /ce-plan turns that into an implementation-ready plan, /ce-work executes it, /ce-simplify-code trims the fresh code, /ce-code-review reports findings against the plan, and /ce-compound writes the learning into docs/solutions/ for later runs to read (core loop). The distinguishing mechanism is that return arrow: later brainstorms and plans ground themselves in previously captured notes, so the same constraint isn't rediscovered on each change. The README illustrates this with an anonymized replay of two sessions 18 days apart.

An autonomous path, /lfg, runs the pipeline hands-off: it works through a plan or a ce-debug fix, simplifies, reviews and applies fixes, captures durable learnings, runs browser tests, then commits. With a git remote it pushes, opens a PR and watches CI within a bounded repair loop; it does not merge unless granted, and can finish with leftovers if the repair budget runs out. Without a remote it stops at local commits (README).

Fit within a host's workflow

The skills are separate commands you invoke in the chat of a supported agent host, not a replacement for it. Codex uses $skill-name rather than the slash form, and oh-my-pi uses /skill:<name> for manual-only or hidden skills (README). Specialist reviewer and research behavior for the Codex App and Codex CLI installs ships inside the skills as local prompt assets, so no separate custom-agent installation is needed. Artifact folders such as docs/solutions/ and docs/plans/ are defaults and can be relocated under one root via the docs_root setting (configuration).

Hosts, install and maintenance

Claude Code, Cursor and Codex are the featured hosts; Kimi Code CLI, Cline, Grok Build CLI, Devin CLI, GitHub Copilot, Factory Droid, Qwen Code, OpenCode, Pi, oh-my-pi and Antigravity CLI have their own paths (more install options). Host details differ in ways that matter: Devin leaves some declared allowed-tools names unmapped, so affected skill actions prompt for permission instead of running auto-approved (Devin notes); on oh-my-pi the default update-check mode only writes to a debug log, so auto-update must be opted into (omp notes). Bun is not needed to install; it is only for repository development and converter maintenance.

Upgrades have an ordering trap: for installs predating the root-native, skills-only layout, the cached marketplace must be refreshed before updating, or /plugin update alone keeps the old version (upgrading).

Constraints

Compound Engineering is opinionated by design, and maintainers state they cannot promise to accept every contribution. Some features are marked experimental, notably Compound Packs for org-wide prescriptive rules (packs). The project is MIT-licensed (LICENSE); security and privacy reporting are documented separately.