Skills/npm/global

global@6.2.0

VERIFIED· install only

Publisher claims: "W3C Web Model Context Protocol (WebMCP) API polyfill. Let AI agents like Claude, ChatGPT, and Gemini interact with your website via document.modelContext." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher mcp-b · publishing for 519 daysInstalls 697KLast detonated 4d ago
$claude mcp add global -- npx -y @mcp-b/global
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Coverage

Nothing executable in the bundle ran; the trace covers the install step only.
Tested
every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-10 and scored it 93/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

MEDIUM
MCP server using network transport (SSE/HTTP)dist/index.iife.js:130 · MCP server using network transport (SSE/HTTP) — data sent over network…e,t){return L_(e,t??($v??=new xv))}let ty=ym(void 0).inputSchema,ny=`__isBrowserMcpServer`;function ry(e){return typeof e==`object`&&!!e&&ny in e&&e[ny]===!0}function iy(e){return`clientOrigin`in e&&(e.clientOrigin===void 0||typeof e.clien…Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04

No other findings across 922 lines in 7 files.

Cost to the agent

Instructions loaded
≈63 tok
1 file · 7 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

No advisories in OSV for @mcp-b/global@6.2.0 as of 4d ago. This is the package itself, not its dependencies.