Is Yawlabs safe and trustworthy?

tashan scores Yawlabs on public evidence — tashan score 63.0/100, it is currently active, note: a single primary maintainer (bus-factor risk), no known advisories against the current release, it runs a script at install time, its declared dependencies reach: network. 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 Yawlabs?

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

‹ The Index

Yawlabs

npm

One install, every MCP server, managed from yaw.sh/mcp. Runs locally: no account, no sign-in.

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: Cloud & Infra — see all ranked ›

Install (Claude Code):

claude mcp add yawlabs-mcp -- npx -y @yawlabs/mcp

deep

“8 tools documented (mcp_connect_dispatch, mcp_connect_discover…); 9 worked examples; setup and auth covered; states a limit — “A spec naming a git or path target (npx -y…”; read with 1 linked doc(s)”

This grade is wrong ›

tashan score: 63.0
Instruction depth: 86.0 (deep — documents every tool, with worked examples, setup and a stated limitation)
Adoption: 519/wk
Upkeep: 71.0
Freshness: 93.0
Evidence coverage: 100% of the inputs this score can use
Health: active
License: SEE LICENSE IN LICENSE.md

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 1.0.1 — this package, not its dependency tree

Runs a script at install timecode

node -e "const major=Number(process.versions.node.split('.')[0]);if(major<20){console.error('@yawlabs/mcp requires Node 20 or newer; this is Node '+process.versions.node+'. Upgrade Node, then re-run the install.');process.exit(1);}"

Makes network requestsfrom declared dependencies

Can carry remote content into your agentit can pull third-party text into the model's context — treat what it returns as untrusted input

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

What changed recently

2026-09-13 @yawlabs/mcp 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.
2026-08-13 @yawlabs/mcp published 0.75.2, was 0.74.0 A new release is available.
2026-08-22 @yawlabs/mcp published 0.75.4, was 0.75.2 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.

tashan Pro$6/mo

We recorded 4 changes to Yawlabs 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.

The whole series behind any row, back to the first day we measured it
The replacement, named — not just the news that something died
tashan doctor over your own config, on your own machine

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npm ↗ · source ↗ · pkg:@yawlabs/mcp

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?