Performs authorized fuzzing of web applications and APIs to discover input validation failures, parser bugs, and stability issues. Use when testing HTTP endpoints, request parameters, payload handling, and error behavior under malformed or unexpected inputs.
95
92%
Does it follow best practices?
Impact
99%
1.41xAverage score across 3 eval scenarios
Risky
Do not use without reviewing
Security
2 findings — 1 high severity, 1 medium severity. 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.
Insecure credential handling detected (high risk: 0.90). The prompt explicitly requires preserving "exact request/response context" and "request metadata" and an "Auth context" in outputs, which would force inclusion of headers, tokens, cookies, or other secrets verbatim unless redaction is added — creating exfiltration risk.
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Third-party content exposure detected (high risk: 1.00). The SKILL.md workflow explicitly directs executing controlled fuzzing against specified HTTP endpoints (see "Execute controlled fuzzing" and the "Targets" field in the Scope/Output Template), which requires fetching and interpreting responses from potentially untrusted public web endpoints and using those responses to drive next actions.
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