agentmail
Email infrastructure for AI agents. Create accounts, send/receive emails, manage webhooks, and check karma balance via the AgentMail API.
72
66%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Risky
Do not use without reviewing
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/agentmail/SKILL.mdSecurity
2 findings — 1 high severity, 1 medium severity. You should review these findings carefully before considering using this skill.
W007: Insecure credential handling detected in skill instructions
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
Insecure credential handling detected (high risk: 1.00). The prompt includes examples that embed API keys and webhook secrets directly in curl headers and code (e.g., `Authorization: Bearer am_...`, `apiKey: "am_..."`, and passing a webhook secret to verification), which encourage placing secret values verbatim into commands and generated output.
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, third-party emails and attachments (see "Read inbox" / "Get full message" and the "Sign up for a service and read verification email" workflow that parses detail.bodyText/detail.bodyHtml), and agents are instructed to parse links/codes and act on them, so untrusted user-generated content can influence agent behavior and enable indirect prompt injection.
- Repository
- sickn33/antigravity-awesome-skills
- Commit
1a9f5ac
- Audited
- Security analysis
Is this your skill?
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