ReddRadar
Agent skill
json-formatter
Validate, format, and minify JSON files when users request JSON validation, formatting, or ask to validate their JSONs
Install this agent skill to your Project
npx add-skill https://github.com/diegopacheco/ai-playground/tree/main/agents/claude-code/claude-skill-fun/json-formatter
SKILL.md
JSON Formatter Skill
Format, validate, and minify JSON files with precision and safety.
Capabilities
This skill provides comprehensive JSON processing:
- Validation: Parse and validate JSON syntax, reporting errors with line numbers
- Formatting: Pretty-print JSON with configurable indentation (default 2 spaces)
- Minification: Remove all unnecessary whitespace for production use
- Safety: Always show diffs before writing changes
- Metrics: Report file size before and after operations
Usage
When a user requests JSON processing, this skill:
- Reads the target JSON file
- Validates the syntax
- Asks user preference: format or minify
- Shows the proposed changes
- Reports size difference
- Writes the result
Instructions
For any JSON file operation:
- Always validate before processing
- Use 2-space indentation for formatting
- Preserve UTF-8 encoding
- Show clear error messages with line numbers for invalid JSON
- Never modify files without showing diffs first
- Handle nested objects and arrays correctly
- Support both single files and batch operations
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