# JSON toolkit (/utils--json-tools)

/utils--json-tools is a Claude Code skill in the Code section. Validates, diffs, queries with jq, flattens or infers a schema for JSON, and returns the result on screen or in a file.

- Web version: https://skills.sgomez.dev/en/s/utils--json-tools
- Section: [Code](https://skills.sgomez.dev/en/code.md)
- Author: Santiago Gómez de la Torre
- License: MIT
- Source: https://github.com/sgomez-dev/claude-skills/blob/main/skills/utils/json-tools.md
- Updated 10 Jul 2026

## How to ask for it

- `/utils--json-tools validate whether this config.json has syntax errors`
- `/utils--json-tools diff these two JSON files and tell me what changed`
- `/utils--json-tools infer the schema from this API response JSON`

## Install

macOS · Linux:

```
curl -fsSL https://raw.githubusercontent.com/sgomez-dev/claude-skills/main/install.sh | bash
```

Windows:

```
irm https://raw.githubusercontent.com/sgomez-dev/claude-skills/main/install.ps1 | iex
```

Claude Code plugin:

```
/plugin marketplace add sgomez-dev/claude-skills
/plugin install utility-skills@claude-skills-collection
```

## Permissions

- Reads: `*.json`, `*.jsonl`, `*.ndjson`
- Writes: `*.json`, `*.schema.json`
- Runs: `jq`
- Network: No
- Destructive: No

## Author's description

JSON utilities: validate, diff, query with jq, flatten, infer schema

- [How we review this](https://skills.sgomez.dev/en/methodology.md)