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nano-brain
A tiny brain for your AI agent. Local MCP server with persistent memory — hybrid search (BM25 + vector + LLM reranking) across sessions, codebase, and notes. Works with Opencode, Claude, Cursor, Windsurf, and any MCP client.
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InstallMCP + SKILLInstall as a Claude Code skill
Universal installANY TOOL
$ npx skillcity@latest nano-step/nano-brainAuto-detects the skill or MCP server in this repo and installs it for Claude Code, Codex, Cursor, Cline, OpenCode, Gemini CLI, Anti-Gravity, OpenClaw and Hermes.
Requires Node.js 18+ (ships with npx).
Or install manually
# Install into ~/.claude/skills/ mkdir -p ~/.claude/skills/nano-brain curl -fsSL https://raw.githubusercontent.com/nano-step/nano-brain/main/SKILL.md -o ~/.claude/skills/nano-brain/SKILL.md
Loading README…
Ask a simulated agent to run this skill. It loads the real SKILL.md and reasons over your task with NVIDIA.
nano-brain — sandboxAI sandbox
Pick a quick prompt below or type your own — watch the agent execute this skill step by step.
guest@skillcity:~$Try a prompt