JSON Data Extraction

About

This skill enables Claude to interact with structured JSON data with extreme context efficiency by utilizing the jq command-line tool. Instead of reading entire files into context—which can be costly and slow for large lockfiles or API responses—it filters for specific fields, transforms nested structures, and extracts only the necessary information. By saving 80-95% of context tokens, it allows for seamless management of dependencies, configuration auditing, and large dataset processing without overwhelming the model's memory.

Key Features

• Provides guidance on jq patterns for error handling and pipe composition
• Filters and transforms JSON data directly via command-line syntax
• Queries deeply nested structures without loading full file contents
• Optimizes retrieval of package versions and dependency keys
• 3 GitHub stars
• Extracts specific fields from large JSON files to save context

Use Cases

• Auditing nested configuration settings in complex tsconfig.json or API files
• Retrieving specific dependency versions from large lockfiles like package-lock.json
• Filtering large API response payloads to extract only relevant data fields