The Agent Skills Directory

[INDIRECT_PROMPT_INJECTION]: The skill ingests user queries about SDK topics via the $ARGUMENTS variable to provide relevant documentation. While this is an attack surface, the risk is negligible as the skill only reads local static files and lacks automated execution capabilities.
Ingestion points: User-provided topics are passed via $ARGUMENTS in the SKILL.md file.
Boundary markers: The skill does not use specific delimiters to encapsulate user input in its instructions.
Capability inventory: The skill's functionality is limited to information retrieval and does not have automated network or file system write access.
Sanitization: No explicit input sanitization is implemented in the markdown instructions.
[EXTERNAL_DOWNLOADS]: The skill contains instructions to check for newer versions by fetching a catalog from the vendor's official GitHub repository (raw.githubusercontent.com/imgly/agent-skills/).
[TIME_DELAYED_CONDITIONAL]: The documentation includes a condition to trigger an update verification if the local skill bundle is more than six weeks old, which is a standard maintenance practice.
[REMOTE_CODE_EXECUTION]: The update-check documentation describes how to update the skill using CLI tools like npx, claude, and codex. These instructions are designed for manual execution and require the agent to obtain explicit user consent before any update command is proposed.
[NO_CODE]: The entire skill bundle consists of Markdown files and does not include any executable scripts, binaries, or automated shell commands, minimizing the potential attack surface.

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