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ImageMagick 7+ image manipulation commands and best practices
Installer avec Codex ou Claude Copiez ce prompt, collez-le dans Codex, Claude ou un autre assistant, puis laissez-le vérifier la page du skill et l'installer pour vous.
Basé sur la classification professionnelle SOC
Render a document, a diagram, or a report as HTML for human visualisation.
Use when writing prose meant to read by humans: PR descriptions, docs, blog drafts, emails, design memos
Guidelines on creating issues on GitHub
Run a premortem on any plan, launch, product, hire, strategy, or decision. Assumes it already failed 6 months from now and works backward to find every reason why. Produces a revised plan with blind spots exposed. MANDATORY TRIGGERS: 'premortem this', 'premortem my', 'run a premortem', 'what could kill this', 'future-proof this', 'stress test this plan', 'what am i missing here', 'find the blind spots'. STRONG TRIGGERS: 'what could go wrong', 'am i missing anything', 'poke holes in this', 'where will this break', 'devil's advocate this'. Do NOT trigger on simple feedback requests, or factual questions. DO trigger when someone has a plan or commitment where the cost of being wrong is high.
Schedule a prompt to fire back at yourself at a future time or on a recurring cron pattern. Use when the user says "remind me", "every N minutes/hours/days", "at HH:MM tomorrow", "check X periodically", or otherwise asks for any time-based action. Triggered by the `schedule` tool plus the `/schedule` command for listing and deletion.
Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get roasted on their design, or mentions "brainstorm".
| name | imagemagick |
| description | ImageMagick 7+ image manipulation commands and best practices |
magick, Not convertIn ImageMagick 7+, the convert command is deprecated. Use magick instead:
# Wrong (generates warnings)
convert input.png output.jpg
# Correct
magick input.png output.jpg
# Also correct (explicit tool)
magick convert input.png output.jpg
magick input.png output.jpg
magick input.jpg -format webp output.webp
magick input.jpg -resize 50% output.jpg
magick input.jpg -resize 1920x1080 output.jpg
magick input.jpg -resize 1920x1080^ output.jpg # Minimum dimensions
# JPEG quality (0-100, higher is better quality, larger file)
magick input.png -quality 85 output.jpg
magick input.jpg -strip output.jpg
for file in *.png; do
magick "$file" "${file%.png}.jpg"
done
| Flag | Description |
|---|---|
-quality N | JPEG compression (0-100) |
-resize WxH | Resize to dimensions |
-strip | Remove metadata |
-format FMT | Specify output format |
-auto-orient | Fix orientation from EXIF |
-compress type | Compression type (lossy, lossless, none) |
convert, mogrify, identify as separate commandsmagick <tool> (e.g., magick convert, magick mogrify)magick --version
"$file"-strip to reduce file size by removing EXIF/metadata-quality 85 for web images