Company Brain
Company Brain is an agent skill (a SKILL.md file) from coreyhaines31/makerskills. Your team's shared, AI-ready knowledge base — people, companies, meetings, SOPs, and decisions structured so Claude can answer questions on your team's behalf. It works with Claude Code, Codex and Cursor and has 844 GitHub stars.
github.com/coreyhaines31/makerskills/skills/company-brain (opens in a new tab)
- Plugin marketplace
- Testing & QA
- Actively maintained
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add coreyhaines31/makerskills
/plugin install makerskills@makerskillsIn the Claude apps, zip the company-brain folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/coreyhaines31/makerskills.git
cp -r makerskills/skills/company-brain .agents/skills/company-brain # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/coreyhaines31/makerskills.git
cp -r makerskills/skills/company-brain .cursor/skills/company-brain # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Your team's shared, AI-ready knowledge base — people, companies, meetings, SOPs, and decisions structured so Claude can answer questions on your team's behalf. Team-scope sibling to second-brain (which is personal-scope). Seven modes — capture (drop something into the right structured dir), compile (process into wiki pages, update INDEX.md), query (answer from the corpus with trust weighting, save to outputs/), review (triage queue — verify / deprecate / supersede unreviewed and stale captures…
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What is the Company Brain skill?
Company Brain is an agent skill (a SKILL.md file) from coreyhaines31/makerskills. Your team's shared, AI-ready knowledge base — people, companies, meetings, SOPs, and decisions structured so Claude can answer questions on your team's behalf. It works with Claude Code, Codex and Cursor and has 844 GitHub stars. Its SKILL.md lives at github.com/coreyhaines31/makerskills/skills/company-brain.
How do I install the Company Brain skill?
In Claude Code, run /plugin marketplace add coreyhaines31/makerskills and then /plugin install makerskills@makerskills. For Codex or Cursor, copy the company-brain folder into .agents/skills/ or .cursor/skills/.
Is the Company Brain skill free?
Yes. The repository is open source under the MIT license.
Is Company Brain maintained?
The repository's most recent commit was on Sep 4, 2026. Its latest release is v1.5.0. appsgit only lists skills from repositories with a commit in the last six months.