# JSON Linter

> Validates JSON syntax across the workspace. Use this skill to check for syntax errors in configuration files, memory files, or data assets.

- Skill: `modbender/json-linter` (Agent Skill, multi-file: 6 files)
- Install (CLI): `npx skillmds@latest add modbender/json-linter`
- Raw SKILL.md: https://api.skillmd.com/api/skills/modbender/json-linter/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: modbender (https://skillmd.com/u/modbender)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/modbender/json-linter

---


# JSON Linter

A simple utility to recursively scan the workspace for `.json` files and validate their syntax using `JSON.parse()`.

## Usage

```bash
# Scan the entire workspace (from current working directory)
node skills/json-linter/index.js

# Scan a specific directory
node skills/json-linter/index.js --dir path/to/dir
```

## Output

JSON report containing:
- `scanned_at`: Timestamp
- `total_files`: Number of `.json` files scanned
- `valid_files`: Number of valid files
- `invalid_files`: Number of invalid files
- `errors`: Array of error objects:
  - `path`: Relative path to file
  - `error`: Error message (e.g., "Unexpected token } in JSON at position 42")

## Example Output

```json
{
  "scanned_at": "2026-02-14T21:45:00.000Z",
  "total_files": 150,
  "valid_files": 149,
  "invalid_files": 1,
  "errors": [
    {
      "path": "config/broken.json",
      "error": "Unexpected token } in JSON at position 42"
    }
  ]
}
```