api-generator
Generates Express REST APIs.
54
60%
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Critical
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tessl review fix ./steps/02-skill-with-frontmatter/SKILL.mdSecurity
2 findings: 1 critical severity, 1 high severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E004: Prompt injection detected in skill instructions.
What this means
Detected a prompt injection in the skill instructions. The skill contains hidden or deceptive instructions that fall outside its stated purpose and attempt to override the agent’s safety guidelines or intended behavior.
Why it was flagged
The skill provides instructions and code patterns that intentionally introduce severe security vulnerabilities across multiple categories, including SQL injection, remote code execution via eval and shell execution, authentication bypasses, and insecure credential handling.
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 prompt includes a hardcoded secret string (`jwt_super_secret_key_123`) within the generated code template, which is an insecure practice for secret management.
- Repository
- jbaruch/tessl-demo
- Commit
3fe83a4
- Audited
- Security analysis
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