Hook the media_* tools and the Video Producer and Video Copy skills into the executor, pi-runtime activity labels and the skill catalog; all stay hidden unless Media Studio is configured. Install ffmpeg in the compose image for renders and drop a local path from ARCHITECTURE.md. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NLSCTnhge4umMnemGXWr1w