# Harvest

Capture durable session learnings, stage for human promotion to 05-knowledge/lizard...

- Repository: https://github.com/huytieu/COG-second-brain (1331 stars)
- Category: AI and agents
- License: MIT
- Last updated: 2026-10-23
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add huytieu/COG-second-brain --skill harvest -g -a claude-code -y`
Codex: `npx skills add huytieu/COG-second-brain --skill harvest -g -a codex -y`
Cursor: `npx skills add huytieu/COG-second-brain --skill harvest -g -a cursor -y`
Gemini CLI: `npx skills add huytieu/COG-second-brain --skill harvest -g -a gemini-cli -y`

## Description

Capture durable session learnings, stage for human promotion to 05-knowledge/lizard, and propose skill/CLAUDE.md patches. Triggered by /harvest, SessionEnd hook staging, or nightly enhance. Never writes durable knowledge without your approval.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

Read `.claude/skills/harvest/SKILL.md` and execute it exactly as written, that file is the authoritative
playbook. Then follow `.agents/rules/cog.md`.

Antigravity substitution: where the playbook delegates to a `.claude/agents/<name>`
worker, invoke `.agents/agents/<name>.md` via `invoke_subagent` instead.