Create a Mastra project using create-mastra and smoke test the studio in Chrome using Chrome MCP server
59
69%
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High
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tessl review fix ./.claude/skills/smoke-test/SKILL.mdSecurity
1 high severity finding. You should review these findings carefully before considering using this skill.
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.
The skill explicitly instructs the agent to run `echo $<ENV_VAR_NAME>` and to ask the user for an API key and "create the .env file with the provided key", which requires the LLM to receive and embed secret values verbatim into outputs or files.
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
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.
The skill explicitly instructs a browser agent at runtime to "Go to example.com and tell me what you see", causing the agent to fetch external page content and inject it into the model's response (example.com).
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