The Agent Skills Directory

[SAFE]: The skill provides documentation and usage examples for a legitimate PHP middleware (ETagMiddleware) belonging to the better-route library. The behavior described follows standard HTTP caching protocols.
[INDIRECT_PROMPT_INJECTION]: Documentation describes logic for processing the If-None-Match HTTP header, representing an external data ingestion surface. 1. Ingestion points: If-None-Match request header used for cache revalidation. 2. Boundary markers: N/A for middleware logic. 3. Capability inventory: Modifies response status codes and sets HTTP headers; no dangerous subprocess calls, file-write, or network operations are involved. 4. Sanitization: The documentation explicitly states that invalid quote or control bytes are replaced with a safe hash.
[EXTERNAL_DOWNLOADS]: Includes testing instructions using curl commands. The target domain example.com is a well-known placeholder, and the commands are used for manual verification of HTTP status codes and header presence.

br-etag-cache