Context-Inappropriate Capability
Medium
- Confidence
- 98% confidence
- Finding
- The skill instructs the agent to use a hard-coded default API key if no MX_APIKEY environment variable is present. Embedding fallback credentials in distributable skill content creates unauthorized or uncontrolled third-party API access, makes the key effectively public, and can lead to abuse, quota exhaustion, billing exposure, or downstream service blocking. In this context, the risk is increased because the skill is explicitly designed to perform live external queries, so the credential is immediately actionable rather than inert documentation.
