markusdowne/agentmail
Give AI agents their own email inboxes using the AgentMail API. Use when building email agents, sending/receiving emails programmatically, managing inboxes, handling attachments, organizing with labels, creating drafts for human approval, or setting up real-time notifications via webhooks/websockets. Supports multi-tenant isolation with pods.
100
100%
Does it follow best practices?
Impact
100%
1.20xAverage score across 1 eval scenario
Advisory
Suggest reviewing before use
Security
1 medium severity finding. This skill can be installed but you should review these findings before use.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (high risk: 0.90). The skill explicitly ingests and processes inbound email content from third parties—via inbox message APIs (messages.get/list), webhook payloads (references/webhooks.md showing processEmail(payload.message)), and websocket events (references/websockets.md showing MessageReceivedEvent handling)—which are untrusted, user-generated content that the agent is shown reading and could drive downstream actions.
- Audited
- Security analysis