AgentSkillsCN

json-formatter

当用户请求对 JSON 文件进行校验、格式化或压缩时，自动对 JSON 文件进行验证、格式化与压缩处理。

SKILL.md
--- frontmatter
name: json-formatter
description: Validate, format, and minify JSON files when users request JSON validation, formatting, or ask to validate their JSONs
allowed-tools: [Read, Bash]

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:

  1. •Reads the target JSON file
  2. •Validates the syntax
  3. •Asks user preference: format or minify
  4. •Shows the proposed changes
  5. •Reports size difference
  6. •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