postmark-automation
Automate Postmark email delivery tasks via Rube MCP (Composio): send templated emails, manage templates, monitor delivery stats and bounces. Always search tools first for current schemas.
75
65%
Does it follow best practices?
Impact
95%
1.63xAverage score across 3 eval scenarios
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./plugins/all-skills/skills/postmark-automation/SKILL.mdSecurity
1 medium severity finding. This skill can be installed but you should review these findings before use.
W012: Unverifiable external dependency detected (runtime URL that controls agent)
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
Potentially malicious external URL detected (high risk: 0.90). The skill explicitly requires adding and calling the runtime MCP server at https://rube.app/mcp (via RUBE_SEARCH_TOOLS) to fetch current tool schemas, meaning remote content from that URL is fetched at runtime and can directly control the agent's prompts and available tool execution.
- Repository
- davepoon/buildwithclaude
- Commit
7cc63f3
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.