---
title: "Lint Command"
manual: "Content Blocks"
version: "main"
permalink: "https://docs.typo3.org/permalink/friendsoftypo3/content-blocks:command-lint@main"
source: "Commands/Lint/Index.rst"
rendered: "2026-09-22T14:15:39+00:00"
---

# Lint Command {#command-lint}

The command `content-blocks:lint` finds all configuration errors inside
your Content Blocks based on the JSON Schema. This command is especially useful
in CI/CD pipelines.

```bash
vendor/bin/typo3 content-blocks:lint
```

Example output:

```bash
+-----------------------------+---------------------------------------------------+
| Path                        | example/card-group | EXT:content_blocks_examples  |
+-----------------------------+---------------------------------------------------+
| /fields/3/fields/3/fields/0 | Additional object properties are not allowed: max |
+-----------------------------+---------------------------------------------------+

 [ERROR] Found 1 errors
```