# Cortex

LifeOS memory, prior-session recall, and learning capture.

- Repository: https://github.com/danielmiessler/LifeOS (19669 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-10-28
- Runs scripts: yes, review before use

## Install

Claude Code: `npx skills add danielmiessler/LifeOS --skill Cortex -g -a claude-code -y`
Codex: `npx skills add danielmiessler/LifeOS --skill Cortex -g -a codex -y`
Cursor: `npx skills add danielmiessler/LifeOS --skill Cortex -g -a cursor -y`
Gemini CLI: `npx skills add danielmiessler/LifeOS --skill Cortex -g -a gemini-cli -y`

## Description

LifeOS memory, prior-session recall, and learning capture. USE WHEN capture this learning, document this learning, what did we learn recently, recent learnings, cortex, knowledge, knowledge base, search knowledge, what do we know about, archive, harvest, knowledge status, develop note, add to knowledge, add a people or company note, ingest, contradictions, knowledge graph, retrieve, mine conversations, distill, weekly digest, cortex digest, context search, prior work, recall, remember, remember when we, previous sessions, context recovery, what did we do, what did we do with, we just worked on, didn't we already fix, why did we change, find session, search history, resume, pick up where we left off, cold start, yesterday's work, last week, the one about. NOT FOR published-content search, or mining one piece of content for the system.

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

# Cortex

**Contents:** Ideal State · Anti-criteria · Intent Routing · Tool contract · Data & Config · Gotchas · Examples

Search and manage the typed Knowledge Archive, recall prior LifeOS work, or capture and digest problem-solving learnings. Every archive note is typed into one of six canonical entity domains (`KnowledgeSchema.ts` CANONICAL_TYPES): People (individuals, public figures, contacts with relationship context), Companies (organizations, businesses, teams with structure and positioning), Ideas (concepts, theses, frameworks, thought patterns across work and life), Research (findings, studies, deep-dive topics with source citations and evidence), Books (published works with claim summaries, key quotes, and implications), and Blogs (blog posts and articles with takeaways, relationships to other notes).

## Ideal State

The rest: https://github.com/danielmiessler/LifeOS/blob/HEAD/LifeOS/install/skills/Cortex/SKILL.md