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How to let an agent zoom into one moment of a recording with Scrawl

Give the agent the command set to pull dense frames around a timestamp, a spoken phrase, or a mark.

Who it is forA developer who has an agent reviewing a capture and needs it to inspect a specific second without scrubbing through the whole video.

The problemA contact sheet shows only keyframes, so the detail of a short interaction can be missed.

The outcomeThe agent pulls a dense set of frames around the moment it cares about and reports what changed.

What you need first

  • An Apple silicon Mac running macOS 26 or later (or Windows 10 2004 or later, x64, preview build)
  • Screen & System Audio Recording, Microphone, and Accessibility permissions granted during onboarding
  • Claude Code, Codex, or another agent that can read the pasted contact sheet and summary.md
  • For the source-build steps: a Rust toolchain with cargo

Steps

  1. Install the agent skill with bunx skills add kitlangton/scrawl.
  2. Run scrawl inspect --marks to list the numbered marks in a capture. (inferred, check the README)
  3. Run scrawl zoom --at 0:12 for a timestamp, or scrawl zoom --at "a phrase you said" for a spoken phrase. (inferred, check the README)
  4. Run scrawl frames on a time range to extract the frames for a closer look. (inferred, check the README)

Prompt for your agent

Use the scrawl command on the capture at <bundle-path>. Run `scrawl inspect --marks`, then `scrawl zoom --at <timestamp>` for the first mark, and report what happens in those frames. Verify that the reported timestamp matches the summary.md timeline.

Caveat. The zoom and frames commands work on bundles that Scrawl has already made, so you must record at least one capture first.

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