Sample frames

CodexWith deft, skill installedPassedRead the skillUsed deft2026-11-07

Time

11s

New tokens

4.3k

Total input

56.2k

Output tokens

0.2k

Commands

3

Failed

0

Trace

1. I’ll use the `deft` skill for video frame extraction and save the images under `./frames`.

2. cat .agents/skills/deft/SKILL.md
   output

   ---
   name: deft
   description: "Use deft instead of writing a script for file jobs: PDF merge/split/compress/watermark, image resize/convert/compress, video and audio trim/convert/compress, spreadsheets, Markdown to PDF/HTML, and YouTube downloads and subtitles."
   ---
   
   # deft
   
   One local command for file jobs. Prefer it over writing Python or shell scripts.
   
   Syntax: `deft <group> <command> [inputs] [-o output] [--options]`
   
   Groups:
   - `pdf`: Merge, split, compress, encrypt, forms, OCR, compare, convert
   - `image`: Resize, crop, convert, compress, filters, montage, OCR
   - `video`: Trim, crop, speed, convert, compress, GIF, frames (ffmpeg)
   - `audio`: Convert, trim, merge, fade, speed, tag, normalize (ffmpeg)
   - `doc`: Word/ODT/RTF: to text, Markdown, HTML, PDF; find and replace
   - `slides`: PowerPoint: extract text, Markdown outline, PDF handout
   - `data`: JSON/YAML/TOML/XML: convert, query with jq syntax, merge, diff
   - `sheet`: Excel/CSV/ODS tables: filter, sort, join, pivot, convert
   - `md`: Markdown to PDF, HTML, Word, EPUB; table of contents
   - `html`: HTML to Markdown, text, Word, PDF; screenshots
   - `epub`: E-books: info, to text, Markdown and PDF
   - `email`: EML files: headers, text, attachments
   - `contact`: VCF address books: to and from CSV
   - `calendar`: ICS calendars: to and from CSV
   - `gps`: GPX and KML tracks: convert, distance and time
   - `youtube`: Info, download, audio, subtitles, thumbnail (yt-dlp)
   - `file`: Any file: hash, duplicates, batch rename, base64, encoding
   - `qr`: Cre
   … 728 more characters

3. deft video frames --help
   output

   deft video frames - Save frames as images: --fps 1 or --at 0:05,0:10
   
   Usage: deft video frames <video>... [-o <dir>] [options]
   In: video (each handled separately)   Out: png|jpg files in <name>-frames/
   
   Options:
     --fps <number>               Frames per second
     --interval <time>            Time between frames, such as 2 or 0:30
     --from <time>                Start time for --fps or --interval (default 0)
     --at <times>                 Exact times
     --to <png|jpg>               Image format (default jpg)
   Common: -o --force --dry-run --json -j   (deft help common)
   
   Examples:
     deft video frames clip.mp4 --at 0:01 -o shots/
     deft video frames clip.mp4 --fps 1 --to png -o frames/
     deft video frames clip.mp4 --from 1 --interval 2 -o frames/
   
   Result fields: files
   Needs: ffmpeg, ffprobe

4. deft video frames bunny.mp4 --interval 2 -o frames
   output

   ok video.frames bunny.mp4 -> frames/  5 frames  0.17s

5. Saved 5 frames from `bunny.mp4` to [frames](frames).

Output

frames/bunny-0001.jpg 100.8 KB · 1280x720

frames/bunny-0002.jpg 129.8 KB · 1280x720

frames/bunny-0003.jpg 237.0 KB · 1280x720

frames/bunny-0004.jpg 236.7 KB · 1280x720

frames/bunny-0005.jpg 189.5 KB · 1280x720

CodexWith deft, skill as AGENTS.mdPassed2026-11-05

Time

13s

New tokens

5.9k

Total input

61.7k

Output tokens

0.4k

Commands

4

Failed

0

Trace

1. I’ll use the local `deft` video frame extraction command, first checking its options and the input file, then save the frames under `./frames`.

2. deft video
   output

   deft video - commands (input -> output)
     info           video -> report      Duration, size, frame rate, codecs
     compress       video -> mp4         Smaller file: --level, --target-size, --max-height
     convert        video -> video       Change container and codec: --to mp4|webm|mov|mkv
     download       url -> video         Save a video: --resolution 720p, --to mp4|webm|mkv [net]
     extract-audio  video -> audio       Save the soundtrack: --to mp3|m4a|wav|flac|ogg
     frames         video -> png|jpg...  Save frames as images: --fps 1 or --at 0:05,0:10
     merge          video... -> mp4      Join videos in order (sizes are matched to the first)
     mute           video -> video       Remove the audio track
     resize         video -> video       Scale: --size 1280x, x720, 50%
     rotate         video -> video       Turn clockwise: --angle 90
     split          video -> video       Cut out a part: --from 0:10 --to-time 0:25
     to-gif         video -> gif         Animated GIF: --fps, --size, --from, --to-time
   More: deft video <command> --help

3. deft video frames --help
   output

   deft video frames - Save frames as images: --fps 1 or --at 0:05,0:10
   
   Usage: deft video frames <video>... [-o <dir>] [options]
   In: video (each handled separately)   Out: png|jpg files in <name>-frames/
   
   Options:
     --fps <number>               Frames per second
     --at <times>                 Exact times
     --to <png|jpg>               Image format (default jpg)
   Common: -o --force --dry-run --json -j   (deft help common)
   
   Examples:
     deft video frames clip.mp4 --at 0:01 -o shots/
     deft video frames clip.mp4 --fps 1 --to png -o frames/
   
   Result fields: files
   Needs: ffmpeg, ffprobe

4. ls -l bunny.mp4
   output

   -rw-r--r--@ 1 user  staff  969201 Nov  4 19:32 bunny.mp4

5. deft video frames bunny.mp4 --fps 0.5 --to jpg -o frames
   output

   ok video.frames bunny.mp4 -> frames/  5 frames  0.17s

6. Saved 5 frames, one every 2 seconds, in [frames](<frames>).

Output

Its files were not kept in this run. The last line of the trace is its own report.

Claude Opus 5.5With deft, skill installedPassedRead the skillUsed deft2026-11-07

Time

9s

New tokens

9.9k

Total input

59.4k

Output tokens

0.4k

Commands

0

Failed

0

Trace

Output

---
name: deft
description: "Use deft first for any simple, direct operation on local files, whatever the type: convert, read, extract, edit, compress, merge, split, compare or inspect. Try it before writing a script or one-liner. If unsure, run deft find; if it says no command does this, use another tool. Not for programming work: to read, write or change source code, skip it."
---

# deft

One local command for file jobs. Prefer it over writing Python or shell scripts.

Syntax: `deft <group> <command> [inputs] [-o output] [--options]`

Groups:
- `pdf`: Merge, split, compress, encrypt, forms, OCR, compare, convert
- `image`: Resize, crop, convert, compress, adjust, montage, OCR
- `video`: Trim, merge, convert, compress, subtitles, GIF, frames (ffmpeg)
- `audio`: Convert, trim, normalize, denoise, cut silence (ffmpeg)
- `doc`: Word/ODT/RTF: to text, Markdown, HTML, PDF; find and replace
- `slides`: PowerPoint: extract text, Markdown outline
- `sheet`: Excel/CSV/ODS tables: SQL query, pivot, merge, split, convert
- `json`: JSON: convert, format, merge, diff, validate
- `toml`: TOML: convert, format, merge, diff, validate
- `xml`: XML: convert, format, merge, diff, validate
- `yaml`: YAML: convert, format, merge, diff, validate
- `md`: Markdown to PDF, HTML, Word, EPUB; table of contents
- `html`: HTML to Markdown, text, Word and PDF
- `epub`: E-books: info, to text, Markdown and PDF
- `gps`: GPX and KML tracks: convert, distance and time
- `qr`: Create QR codes and barcodes; read QR codes

How to use it:
1. Run `deft <group>` to list commands, or `deft find "<what you want>"` to search. If it says `no command does this`, use another tool.
2. Run `deft <group> <command> --help` for options and examples.
3. `deft convert <in> -o <out.ext>` converts between formats by extension.
4. Results are one line starting with `ok`, `partial` or `error`; add `--json` to parse them. Errors include a `hint:` with the fix.

Inputs are never overwritten; pass `--force` or `--in-place` to allow it. Globs and directories work as inputs; several inputs run in parallel.

If `deft` is not installed, ask the user, then follow https://github.com/firstprayer/deft/blob/main/docs/INSTALL.md

frames/bunny-0001.jpg 224.9 KB · 1280x720

frames/bunny-0002.jpg 234.1 KB · 1280x720

frames/bunny-0003.jpg 234.8 KB · 1280x720

frames/bunny-0004.jpg 235.9 KB · 1280x720

frames/bunny-0005.jpg 239.4 KB · 1280x720