The Agent Skills Directory

[EXTERNAL_DOWNLOADS]: The skill provides instructions for downloading the c2patool utility from the Content Authenticity Initiative's official GitHub repository and uses system package managers like Homebrew, APT, and WinGet for installing well-known forensic tools including ffmpeg, exiftool, and imagemagick.
[COMMAND_EXECUTION]: The agent is instructed to use standard command-line interfaces for ffmpeg, exiftool, and magick to extract signal data and metadata from media files, which are routine operations for forensic verification.
[PROMPT_INJECTION]: This skill possesses an indirect prompt injection surface due to its primary function of processing untrusted external media files. Ingestion points: Media files are ingested via tools like ffmpeg and exiftool in SKILL.md. Boundary markers: No specific delimiters or instructions to ignore embedded commands are provided for tool outputs. Capability inventory: The agent can execute shell commands (ffmpeg, exiftool, magick) and perform file system reads. Sanitization: While structured output parsing is mentioned, there is no explicit sanitization of malicious instructions that could be hidden in media metadata or visual content.

deepfake-detection