building-with-medusa

skills-sh:medusajs_medusa-agent-skills__building-with-medusa

View source
B
85/100

First Seen

Feb 18, 2026

Last Scanned

Feb 20, 2026

Findings

3

Score

85/100

HIGH 1
LOW 2

Findings (3)

HIGH
Fetch URL and use as instructions
L3

Detects fetching external URLs and using the content as agent instructions or rules

rules that MCP server
FIX

Sanitize or validate all external inputs (file contents, API responses, user messages) before including them in prompts or tool calls. Implement input/output boundaries between trusted and untrusted data.

FP?

Likely FP if the matched text is the skill's own instruction set describing how to handle user input, not an actual injection payload.

LOW
External API response used without validation
L3

Detects patterns where external API responses are used directly without validation or sanitization

API routes, workflows, data + without waiting for the use
FIX

Validate and sanitize all data received from external APIs before using it in tool operations or agent prompts. Implement schema validation and treat API responses as untrusted input.

FP?

Likely FP if the match is a truncated table cell or documentation fragment that mentions API responses in a descriptive context, not actual unvalidated data processing.

LOW
Runtime URL controlling behavior
L245

Detects URLs fetched at runtime that control or influence agent behavior without pinning

GET http:// + rules
FIX

Avoid loading configuration or behavior-controlling content from runtime URLs. Bundle required configurations locally or pin remote config to versioned, integrity-verified endpoints.

FP?

Likely FP if the URL in the match is a documentation link or example URL (e.g., example.com) rather than an actual runtime-fetched configuration endpoint.