Skills/npm/shipmail-mcp

shipmail-mcp@0.9.7

VERIFIED

Publisher claims: "Official Model Context Protocol (MCP) server for Shipmail. Modern email for your business, plus transactional email and an API for your agents." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher shipmail-to · joined 0 days agoInstalls 1,671Last detonated 2 h ago
$claude mcp add shipmail-mcp -- npx -y shipmail-mcp
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-10-27 and scored it 88/100 (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
0.8sprocessdependency install exit 1
0.9sprocessexec /usr/bin/timeout
0.9sprocessexited 1: Node.js v22.23.4
0.9sclaimedno tools/list reply (exit 1)
0.9sprocessscript backend runs setup only

Static findings

HIGH
Authorization escalation languageREADME.md:121 · Authorization escalation languageFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
CRITICAL
Prompt injection attemptREADME.md:429 · Prompt injection attempt — 'ignore previous instructions'Fix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
CRITICAL
Prompt injectionREADME.md:121 · Prompt injection — known jailbreak technique referenceFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01