Persistent memory for AI agents by Sigma Labs. Knowledge graph, hybrid search, entity tracking, and structured recall across sessions. File-based, git-tracked, zero-LLM.
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---
name: cortex
description: "Persistent memory for AI agents by Sigma Labs. Knowledge graph, hybrid search, entity tracking, and structured recall across sessions. File-based, git-tracked, zero-LLM."
---
# Cortex
Persistent memory for AI agents. Built by [Sigma Labs](https://github.com/sigmalabs-ai).
- **Mind** — Behavioral memory. Decisions, lessons, preferences, and 19 typed entries with decay, reinforcement, and consolidation.
- **Vault** — Document store with CRUD and hybrid search. Every write is a git commit.
- **Observer** — Automatic memory extraction from conversations.
- **Search** — Hybrid (BM25 + semantic + temporal). File-based, git-tracked.
## Links
- GitHub: [sigmalabs-ai/cortex](https://github.com/sigmalabs-ai/cortex)
- Original v1: [waynevaughan/cortex](https://github.com/waynevaughan/cortex) (est. Feb 13, 2026)
- License: MIT
