Skills/npm/postlint-mcp

postlint-mcp@1.1.0

VERIFIED

Publisher claims: "MCP server that checks a social post against a platform's real character limit — X t.co URL weighting, Bluesky graphemes, LinkedIn, Threads, Mastodon. Pure compute, no network." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher conorbronsdon · joined 8 days agoInstalls 3,430Last detonated 5 h ago
$claude mcp add postlint-mcp -- npx -y @conorbronsdon/postlint-mcp
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-03 and scored it 80/100 (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 · 2 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
2.0sprocessdependency install exit 1
2.1sprocessexec /usr/bin/timeout
2.1sprocessexited 1: Node.js v22.23.4
2.1sclaimedno tools/list reply (exit 1)
2.1sprocessscript backend runs setup only

Static findings

HIGH
Hidden zero-width characters detecteddist/count.d.ts:63 · Hidden zero-width characters detected — may conceal contentFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST07
HIGH
Hidden zero-width characters detecteddist/count.js:149 · Hidden zero-width characters detected — may conceal contentFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST07