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Imagemagick

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imagemagick

Imagemagick is an Agent Skill for documents published in the AtomicBot-ai/atomic-agent repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Edit and convert images with the ImageMagick `magick` CLI — resize, crop, convert format, compress, rotate, montage, annotate. Use for any still-image transformation.

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QUICK START

How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/AtomicBot-ai/atomic-agent/blob/HEAD/starter-skills/imagemagick/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/imagemagick, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

imagemagick

Transform still images with ImageMagick v7 (magick command). Pairs well with vision.describe — describe an image to decide what to do, then operate on it here. Always write to a new output file.

ImageMagick v7 uses magick in.png out.jpg. Legacy v6 uses convert; if only convert exists, substitute it for magick in the examples below.

Setup health check (run first, every session)

Verify with one solo step:

[{ "tool": "os.shell.run", "args": { "cmd": "magick", "args": ["--version"] } }]

Outcome map:

  • exit 0 + Version: ImageMagick 7… → ready, proceed.
  • command not found: magick → try convert --version (v6); if also missing → enter Setup playbook → "imagemagick missing".

Setup playbook (when prerequisites are missing)

imagemagick missing

Reply (solo reply step):

«ImageMagick не установлен. Могу поставить: brew install imagemagick. Поставить?»

On yes:

[{ "tool": "os.shell.run", "args": { "cmd": "brew", "args": ["install", "imagemagick"] } }]

On Linux: apt-get install imagemagick.

When to use

  • "Resize / crop / rotate this image", "convert PNG to JPG / WebP".
  • "Compress this image", "make a thumbnail", "combine images into a montage".
  • "Add a text caption / watermark to this image".

When NOT to use

  • Understanding image content — use vision.describe instead.
  • Video frames / animation encoding — use the ffmpeg skill.
  • Multi-page PDF assembly from images — use the pdf skill (magick can make a PDF but page-level control lives in pdf).

Common operations

All examples invoke os.shell.run with cmd: "magick". The approval gate surfaces each write.

Goalargs
Inspect dimensions/format["identify", "in.png"]
Convert PNG → JPG["in.png", "out.jpg"]
Convert → WebP["in.png", "-quality", "82", "out.webp"]
Resize to 800px wide["in.jpg", "-resize", "800x", "out.jpg"]
Thumbnail (fit 200x200)["in.jpg", "-thumbnail", "200x200", "thumb.jpg"]
Crop 300x300 from 10,10["in.png", "-crop", "300x300+10+10", "+repage", "crop.png"]
Rotate 90°["in.jpg", "-rotate", "90", "rot.jpg"]
Compress JPG quality 75["in.jpg", "-quality", "75", "small.jpg"]
Montage 2x2 grid["montage", "a.png", "b.png", "c.png", "d.png", "-tile", "2x2", "-geometry", "+4+4", "grid.png"]
Add caption["in.jpg", "-pointsize", "36", "-annotate", "+20+40", "Hello", "out.jpg"]

Rules

  1. Always write to a NEW output path; never overwrite the source image.
  2. Use magick identify first to learn dimensions/format before transforming.
  3. After a transform, optionally vision.describe the result to confirm it matches the user's intent for visual tasks.
  4. Echo the output path and final dimensions after each operation.