A personal AI OS that lives inside your Obsidian vault. You teach it your context; it captures, organizes, and recalls — getting sharper the more you use it. Built natively on Claude Code.

Most tools ask you to query an AI. OneBrain co-evolves with you — every preference you teach sharpens the agent, every link it surfaces sharpens you.

npm install -g @onebrain-ai/cli

1. Initiate — Install the CLI, run /onboarding. The agent learns your name, vault, and identity.
2. Capture intent — Talk in natural language. The agent writes, classifies, and links in real time. → /braindump · /capture · /bookmark
3. Mutual evolution — /research and /distill expand your knowledge. /learn deepens the agent. The loop tightens. → /research · /distill · /learn

• ◉ Persistent memory — three layers: who you are, what you taught, what we decided. Carries across every session.
• ↘ Frictionless capture — braindump, capture, bookmark. Pick whichever matches your thought.
• ◈ Semantic search — qmd hybrid keyword + vector. Recall any idea in seconds.
• ⌘ Auto-linking — every new note gets wikilinks pulled from your existing graph.
• ↯ Skills system — 20+ slash commands wrap deep workflows like research, distill, weekly review.
• ▦ PARA-native — ready-made structure for Projects, Areas, Resources, Knowledge.

obsidian · claude-code · personal-ai · ai-agent · ai-os · pkm · second-brain · knowledge-base · note-taking · memory · markdown · local-first · personal-knowledge-management · gemini-cli · productivity

_{OneBrain · hello@onebrain.run · @onebrain_run}