Csv Schema Validator Auto Fixer

---
name: "CSV Schema Validator & Auto-Fixer"
slug: "csv-schema-validator-auto-fixer"
description: "Validates CSV files against JSON Schema definitions using AJV and csv-parse. Automatically detects and repairs type mismatches, missing required columns, and encoding issues with configurable strictness levels."
github_stars: 14691
verification: "security_reviewed"
source: "https://github.com/ajv-validator/ajv"
author: "Ajv Validator"
category: "Data Extraction & Transformation"
framework: "OpenClaw"
tool_ecosystem:
  github_repo: "ajv-validator/ajv"
  github_stars: 14691
  npm_package: "ajv"
  npm_weekly_downloads: 291125331
---

# CSV Schema Validator & Auto-Fixer

Validates CSV files against JSON Schema definitions using AJV and csv-parse. Automatically detects and repairs type mismatches, missing required columns, and encoding issues with configurable strictness levels.

## Prerequisites

Node.js

## Installation

Use the upstream install or setup path that matches your environment:
- npm install ajv

Requirements and caveats from upstream:
- The fastest JSON validator for Node.js and browser.
- Supports JSON Schema draft-04/06/07/2019-09/2020-12 ([draft-04 support](https://ajv.js.org/json-schema.html#draft-04) requires ajv-draft-04 package) and JSON Type Definition [RFC8927](https://datatracker.ietf.org/doc/...
- supports [browsers](https://ajv.js.org/guide/environments.html#browsers) and Node.js 18.x - current

Basic usage or getting-started notes:
- [Getting started](https://ajv.js.org/guide/getting-started.html)
- To install version 8:
- ## <a name="usage"></a>Getting started

- Source: https://github.com/ajv-validator/ajv
- Extracted from upstream docs: https://raw.githubusercontent.com/ajv-validator/ajv/HEAD/README.md

## Documentation

- https://ajv.js.org/

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/csv-schema-validator-auto-fixer/)