imagemagick

Guide for using ImageMagick command-line tools to perform advanced image processing tasks including format conversion, resizing, cropping, effects, transformations, and batch operations. Use when manipulating images programmatically via shell commands.

Quality

64%

Does it follow best practices?

Impact

Pending

No eval scenarios have been run

Securityby

Advisory

Suggest reviewing before use

Optimize this skill with Tessl

npx tessl skill review --optimize ./claude/skills/imagemagick/SKILL.md

Quality

Discovery

N/A

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

Something went wrong

Implementation

64%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This is a highly actionable ImageMagick reference with excellent executable examples covering a wide range of operations. However, it's verbose with unnecessary introductory content, lacks validation checkpoints for destructive batch operations, and would benefit from being split into a concise overview with linked reference files for advanced topics.

Suggestions

Remove the 'When to Use This Skill' section and introductory paragraph - Claude knows when image processing is needed

Add explicit validation steps for batch operations: 'Test on 1-2 files first, verify output, then process batch'

Split into SKILL.md (quick reference with common operations) and separate files for BATCH_PROCESSING.md, ADVANCED_TECHNIQUES.md, and TROUBLESHOOTING.md

Add a verification pattern for mogrify: 'mogrify -path ./test -resize 800x600 sample.jpg && identify ./test/sample.jpg' before running on full batch

Dimension	Reasoning	Score
Conciseness	The skill is comprehensive but includes some unnecessary explanations (e.g., 'ImageMagick is a comprehensive, free, open-source software suite...' and 'When to Use This Skill' section explaining obvious use cases). The content could be tightened by removing introductory fluff that Claude already understands.	2 / 3
Actionability	Excellent actionability with fully executable, copy-paste ready commands throughout. Every operation includes concrete bash examples with proper syntax, and common patterns like thumbnail generation and watermarking have complete working code.	3 / 3
Workflow Clarity	While individual commands are clear, the skill lacks explicit validation checkpoints for batch operations. The mogrify section warns to 'backup originals' but doesn't include verification steps. Missing feedback loops for destructive batch operations (mogrify modifies in-place).	2 / 3
Progressive Disclosure	The content is well-organized with clear sections, but it's a monolithic 500+ line document that could benefit from splitting advanced techniques, batch processing, and troubleshooting into separate reference files. The Resources section links externally but doesn't leverage internal file structure.	2 / 3
	Total	9 / 12 Passed

Validation

81%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 9 / 11 Passed

Validation for skill structure

Criteria	Description	Result
skill_md_line_count	SKILL.md is long (659 lines); consider splitting into references/ and linking	Warning
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	9 / 11 Passed

Repository: einverne/dotfiles
Commit: b1b2fe0

Reviewed: 27 days ago

Table of Contents

Discovery Implementation Validation

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