Skills/npm/posterly-mcp-server

posterly-mcp-server@0.59.0

VERIFIED

Publisher claims: "MCP server for posterly: schedule and publish social media posts across 18 platforms from any MCP client (Claude, ChatGPT, Cursor, Windsurf, Cline, and more)" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher awpthorp · joined 8 days agoInstalls 6,073Last detonated 4d ago
$claude mcp add posterly-mcp-server -- npx -y posterly-mcp-server
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-10-30 and scored it 84/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 1 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.6sprocessdependency install exit 1
0.7sprocessexec /usr/bin/timeout
0.7sprocessexited 1: Node.js v22.23.4
0.7sclaimedno tools/list reply (exit 1)
0.7sprocessscript backend runs setup only

Static findings

MEDIUM
npx invocation of non-well-known packagedist/tools/whoami.js:165 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.
AST06

No other findings across 17,087 lines in 81 files.