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Triage a whole clip in one VLM call — tile sampled frames into a labeled contact sheet, ask which cells show the target, then zoom in.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
Give any agent senses (video/audio/image understanding) and OSINT reach (search/capture/monitor) organized around an investigation case. Use when the user wants to analyze a video/audio/image, scan or monitor sources for a target, or ask/brief over accumulated findings. Drives the `overcast` CLI (built on pi + the tinycloud/Cloudglue perception backend); see reference/verbs.md for the full verb surface.
Install and configure overcast for this harness: install the CLI, verify the system ffmpeg, and configure reusable provider profiles. Use once per machine/profile before driving the `overcast` skill.
Turn a case into a visual evidence board — materialize face and object crops, link the same person across clips, connect themes, and render the corkboard as a CSI brief plus a live monitor wall.
Make unreadable footage legible — denoise/upscale a marked moment, re-run OCR and detection on the enhanced output, and record what was recovered with honest provenance (interpolation is a lead, not proof).
Work out where a photo or clip was taken — check embedded EXIF/GPS first, then pull signage, landmarks, and terrain clues, reverse-image-search the strongest ones, and corroborate to a location with cited evidence.
Run a standing surveillance watch on public sources for a target — auto-sense new media, auto-suggest matches into a triage queue, and keep a live control-room wall — so new evidence surfaces itself over time.
| name | overcast-frame-grid |
| description | Triage a whole clip in one VLM call — tile sampled frames into a labeled contact sheet, ask which cells show the target, then zoom in. |
Use this skill to find roughly WHERE in a clip something appears with a single
vision call, before spending per-frame calls. It's the "grid trick" from
temporal-search research (frames tiled into one image; Set-of-Mark numbering over
time). Pairs with overcast-pinpoint for the frame-precise follow-up. Use the
broad overcast skill and overcast/reference/verbs.md for exact flags.
overcast doctor --json
overcast case init --json
overcast grid ./clip.mp4 --count 16 --json # -> media.grid: payload.montage + payload.cells + payload.cols
overcast see <montage-path> --prompt "Which numbered cells show <X>? Reply with cell numbers and why." --json
payload.labeled is false (this ffmpeg build has no
drawtext), tell see it's a <cols>-column grid numbered left-to-right,
top-to-bottom (cols is in the record), so it can reference cells by position.count cells hold frames; the last row may be blank padding
(those payload.cells[].at are null), so have see pick from 1..count
and ignore blank tiles.payload.cells[n].at to get the
real timestamp — never use a time the model typed out.Zoom in on the winning region (narrow the window, or hand the timestamp to
overcast-pinpoint):
overcast grid ./clip.mp4 --start <a> --end <b> --count 16 --json # finer sheet around the hit
overcast see frame://<watch-record>@<t> --prompt "Is <X> here? yes/no + detail" --json
overcast note "<X> first visible" --ref <record> --at <t1-t2> --json
overcast brief --export ./grid-triage.md --json
Use --at "s1,s2,s3" instead of --count when you already have candidate
timestamps to compare side by side; --start/--end to focus a window; --cols
/ --width to shape the sheet. Add --view (--no-open in a headless run) to
also write a clickable HTML board — numbered, timestamped cells that seek the
source clip — for eyeballing the sheet by hand; the montage PNG stays the input
you hand to see.
The cell(s) that matched, the timestamp each maps to (via payload.cells), and
the grid record.id. Treat grid hits as coarse (one frame per cell) — confirm
the exact moment by see-ing that frame before citing it as evidence.
One contact sheet samples sparsely, so a brief event between cells can be missed —
raise --count or re-grid a tighter --start/--end. The montage is a still, so
motion/audio cues are gone; use watch/listen when those matter. Video can be
local or a URL, but the see frame:// zoom-in step needs it local.