gbro-collage-broll

gbro-collage-broll is an agent skill that turns a five-second voiceover line into a matching B-roll clip in an editorial halftone paper-collage style. Clone it into your agent skills directory and it walks a three-gate workflow: confirm the visual metaphor as text, approve a static frame, then generate the video. MIT licensed.

Those gates are the design decision worth noting. Video generation is the expensive step, so the skill makes you sign off on the concept and then the still image before it spends anything. Requirements are a Codex environment, a Gemini API key, Python 3.10+, google-genai, and ffmpeg. Gate 2 leans on Codex's built-in `image_gen` tool for the static frame, so this is a Codex skill first even though it drops into any skills directory. Output is a silent 720x1280 nine-by-sixteen MP4 at 24fps.

Solo creators and small video teams producing short vertical content are the audience. The skill itself costs nothing. Google's video generation API is where the money goes, and at five seconds a clip a finished video means a lot of calls, so price that out before you build a workflow around it.

The catch: one aesthetic. Halftone paper collage is a strong look and a narrow one, and every clip you make will match every clip anyone else makes with this skill. Output is also silent by design, so audio stays your problem. Useful as one texture in an edit, not as your whole visual language.