postmark
Pass
Audited by Gen Agent Trust Hub on Jun 28, 2026
Risk Level: SAFEEXTERNAL_DOWNLOADSCOMMAND_EXECUTION
Full Analysis
- [EXTERNAL_DOWNLOADS]: The skill uses
npxto download and execute the@useclawlink/clipackage from the npm registry. This package is the official command-line interface provided by the vendor for the Postmark integration. - [COMMAND_EXECUTION]: The skill interacts with the Postmark API by executing shell commands using the
npx @useclawlink/clitool. These commands facilitate sending emails, checking stats, and managing templates. - [CREDENTIALS_UNSAFE]: The skill documentation identifies that authentication credentials for the ClawLink service are stored locally on the user's filesystem at
~/.clawlink/credentials.jsonfollowing the browser login process. - [INDIRECT_PROMPT_INJECTION]: The skill provides the ability to ingest data from external sources, such as bounce messages and delivery statistics, which could potentially contain adversarial content designed to influence the agent's behavior.
- Ingestion points: Data is retrieved via actions like
postmark_get_bouncesandpostmark_get_delivery_statsdefined in SKILL.md. - Boundary markers: There are no explicit instructions for the agent to treat retrieved email data as untrusted or to use specific delimiters.
- Capability inventory: The agent has the ability to send emails (
postmark_send_email), modify templates (postmark_edit_template), and create webhooks (postmark_create_webhook). - Sanitization: No automated sanitization or verification of the content retrieved from Postmark is mentioned.
Audit Metadata