Is Nano Brain safe and trustworthy?

tashan scores Nano Brain on public evidence — tashan score 70.0/100, it is currently active, no known advisories against the current release, it runs a script at install time. Audit scope: OSV advisories, install-time scripts, build provenance and declared permission surface. We do not review source code or execute the capability.

How do I install Nano Brain?

In Claude Code: run `claude mcp add nano-step-nano-brain -- npx -y @nano-step/nano-brain`. In Cursor / Claude Desktop, add it to mcp.json / claude_desktop_config.json.

‹ The Index

Nano Brain

npm

Persistent memory and code intelligence for AI coding agents

Works with: Claude Code, Cursor, Claude Desktop, Codex CLI, Gemini CLI, Cline, Windsurf, VS Code (installable)
installable: each client documents how to load an MCP server of this type — that is the client's promise, not a claim verified against this capability

Category: AI & Agents — see all ranked ›

Work: Knowledge management

Who it is for: Operations · Researcher

Install (Claude Code):

claude mcp add nano-step-nano-brain -- npx -y @nano-step/nano-brain

tashan score: 70.0
Adoption: 640/wk
Upkeep: 86.0
Freshness: 98.0
Evidence coverage: 100% of the inputs this score can use
Health: active
License: MIT

Security audit

Every finding is shown in full — which advisory, the version that fixes it, and the exact command run at install time. Nothing in this audit is behind a licence.

No known advisoriesclearchecked against OSV for 2026.8.1402 — this package, not its dependency tree

Runs a script at install timecodenode npm/postinstall.js

No access inferred from declared dependenciesnothing it depends on reaches files, shell or network. This reads declarations only — built-in APIs are invisible to it, so absence of a declaration is not absence of access

No build provenanceno attestation — the published artifact cannot be traced to its source

What changed recently

2026-08-11 @nano-step/nano-brain now runs a script when it installs Install-time code executes on your machine before you have used the tool once, and it did not do this before.
2026-08-15 @nano-step/nano-brain published 2026.8.1402, was 2026.8.502 A new release is available.

You are reading this because you came looking. tashan Pro gives tashan doctor the history behind it, so a run over your own config says which of YOURS moved.

You searched for one. Check the rest of your stack:

npx tashan-cli doctor

Reads the config already on your machine and names what is dead, deprecated or running code at install time. No account, nothing uploaded.

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We recorded 2 changes to Nano Brain in the last 45 days. Pro tells you on the day — for the servers in your own config, not the ones you thought to look up.

Every score since we started measuring, for any capability
The named replacement when something you run is dying — not just that it is
tashan doctor over the config you already have, on your machine

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npm ↗ · source ↗ · pkg:@nano-step/nano-brain

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Measured 2026-08-20 · scorer s5 · how · something wrong here?