Personal knowledge base with semantic search for Claude — local PostgreSQL + pgvector, MCP server for Claude Code CLI and Claude Desktop. Inspired by Nate B Jones's Open Brain guide (promptkit.natebjones.com)
Skill Claude CodeCodex
Use when users ask about MyBrain, what it does, how it works, what tools are available, or how to use the personal knowledge base. Covers architecture, tools, deployment modes, and usage.
Skill Claude CodeCodex
Use when users want to install or set up MyBrain -- a personal knowledge base with semantic search. Install is always per-project (local MCP scope); the only user-facing choice is which database backend to connect to (Bundled, Docker, Native, or RDS). Detects and offers to remove deprecated user/project/plugin-scoped…