Project Cairn

Standardize how an AI-collaboration project turns work into reusable knowledge. Use when initializing or retrofitting Project Cairn in a project, recording progress after meaningful work, maintaining AGENTS/CLAUDE/cairn docs, auditing project knowledge for drift or missing records, pulling and citing external knowledge, or graduating validated project experience into a reusable knowledge base.

252 stars 48 forksAI, LLMs & Agents

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add iBlinkQ/project-cairn --skill project-cairn

Manual install

git clone --depth 1 https://github.com/iBlinkQ/project-cairn.git /tmp/project-cairn
mkdir -p ~/.claude/skills
cp -r /tmp/project-cairn/. ~/.claude/skills/project-cairn

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Project Cairn

Project Cairn gives AI-collaboration projects a durable way to keep and reuse what they learn while doing real work. The **Skill** supplies the method, **AGENTS.md** carries always-read project rules, and **`.cairn/config.yaml`** stores machine-readable configuration.

This Skill is documentation-first. It provides instructions, templates, references, and provider adapters. It has no CLI, MCP server, background hook, chat-end trigger, automatic provider write, or automatic history migration. Routine maintenance happens during normal work because `AGENTS.md` carries the rules. Provider writes require human confirmation.

## Routing

Load exactly the reference you need:

- `references/init.md` — initialize, retrofit, bootstrap, or set up Project Cairn in a project.
- `references/consume.md` — pull, cite, reuse, or apply external knowledge from the configured knowledge base.
- `references/maintenance.md` — record progress, update LOG, update ROADMAP, maintain topic notes, or apply Cairn rules after work.
- `references/audit.md` — inspect, audit, validate, clean up, or find missing project knowledge records.
- `references/upgrade.md` — upgrade an initialized project instance to the current skill spec, or check how far it has drifted (instance drift after the skill itself evolved).

Read the full skill on GitHub

Details

Skill name: project-cairn
Repository: iBlinkQ/project-cairn
License: MIT
Repo updated: 22 October 2026

FAQ

What does the Project Cairn skill do?

How do I install the Project Cairn skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add iBlinkQ/project-cairn --skill project-cairn. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Project Cairn popular?

It lives in iBlinkQ/project-cairn, which has 252 GitHub stars and 48 forks.

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