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agentmail

Email infrastructure for AI agents. Create accounts, send/receive emails, manage webhooks, and check karma balance via the AgentMail API.

57

Quality

66%

Does it follow best practices?

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SecuritybySnyk

High

Do not use without reviewing

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tessl review fix ./plugins/AI-Agents-Safe-Coding-Skills/skills/agentmail/SKILL.md

The canonical home for this skill is agentmail in sickn33/antigravity-awesome-skills

SKILL.md
Quality
Evals
Security

Security

1 high severity finding. You should review these findings carefully before considering using this skill.

High

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

The skill explicitly shows and requires embedding Authorization: Bearer API keys in curl headers and hardcoding an apiKey in example code, which forces the LLM to handle or emit secret values verbatim (high exfiltration risk).

Report incorrect finding

Low

Low-risk findings.

1 low severity finding. Worth noting, but not necessarily harmful.

Low

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

In the agentmail required runtime workflow, inbound emails are read via `GET /v1/accounts/{accountId}/messages` and `GET /v1/accounts/{accountId}/messages/{messageId}` (including `bodyText/bodyHtml`), so outsider-authored free text from email senders can be ingested without selecting a specific item.

Repository
administrakt0r/AI-Agents-Safe-Coding-Skills
Audited
Security analysis
Snyk

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