Decode WebP

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

Time

12s

New tokens

3.9k

Total input

41.5k

Output tokens

0.2k

Commands

2

Failed

0

Trace

1. I’ll use the `deft` skill for the image conversion, then save `gallery.png` in the current directory.

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 image convert gallery.webp -o gallery.png
   output

   ok image.convert gallery.webp -> gallery.png  550x368  0.03s

4. Converted `gallery.webp` to `gallery.png` in the current directory (550 × 368).

Output

gallery.png 279.7 KB · 550x368

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

Time

8s

New tokens

8.9k

Total input

45.5k

Output tokens

0.2k

Commands

2

Failed

0

Trace

1. I’ll check the available `deft` image conversion command and convert the file in the current directory.

2. deft image convert --help
   output

   deft image convert - Change format: --to png|jpg|webp|avif|gif|tiff|bmp|ico
   Same as: deft convert
   
   Usage: deft image convert <image>... [-o <image|dir>] [options]
   In: image (each handled separately)   Out: image (default <name>.<ext>)
   WebP output is lossless. Transparent areas become --background in JPEG.
   
   Options:
     --to <png|jpg|webp|avif|gif|tiff|bmp|ico>
         Target format (or give -o name.ext)
     --quality <n>                Quality for JPEG and AVIF (default 85)
     --background <color>         Fill for transparent areas in JPEG (default white)
   Common: -o --force --dry-run --json -j   (deft help common)
   
   Examples:
     deft image convert photo-1.jpg --to png -o photo.png
     deft image convert *.jpg --to webp -o web/
   
   Result fields: width, height

3. deft image convert gallery.webp -o gallery.png
   output

   ok image.convert gallery.webp -> gallery.png  550x368  0.04s

4. Converted `gallery.webp` to `gallery.png` (550 × 368) in the current directory.

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

6s

New tokens

9.2k

Total input

43.5k

Output tokens

0.3k

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

gallery.png 279.7 KB · 550x368