‹ The Index

Master CLI

npm

AI-agent-friendly command-line toolkit: timestamp/date conversion, JWT decoding, port killing, file finding, and directory trees — headless, --json, with a self-describing manifest and a built-in MCP server (mfn mcp).

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

Install (Claude Code):

claude mcp add master4n-master-cli -- npx -y @master4n/master-cli

Security audit

scanned 2026-08-25

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 3.0.7 — this package, not its dependency tree
Reads and writes filesfrom declared dependencies
No build provenanceno attestation — the published artifact cannot be traced to its source

What changed recently

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.

tashan Pro$6/mo

We recorded 1 change to Master CLI 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.

Start a 7-day trial › Everything measured on this page stays free.

Show your score

Measured this well? Put the live badge in your README — it updates as the score does.

tashan badge for Master CLI
[![tashan](https://tashan.sh/badge/pkg-master4n-master-cli.svg)](https://tashan.sh/capability/pkg-master4n-master-cli.html)

npm ↗  ·  source ↗  ·  pkg:@master4n/master-cli

Already running this? Check your whole config — free, in your browser, nothing installed. Or npx tashan-cli doctor locally, which sends nothing at all.

Measured 2026-09-13  ·  scorer s5  ·  how  ·  something wrong here?