Official Verified

YAMLCheck

Validate YAML syntax using python3, lint configs, and convert YAML to JSON. Use when checking syntax, finding errors, or converting formats.

skill-install — Terminal

Install via CLI (Recommended)

clawhub install openclaw/skills/skills/bytesagain1/yamlcheck

Download Source Code (.zip)

YAMLCheck

A real YAML validator and toolkit. Check syntax, convert YAML to JSON, lint for style issues, and list top-level keys. Uses PyYAML when available, falls back to basic parsing when not.

Commands

Command	Description
`yamlcheck validate <file>`	Validate YAML syntax — reports document count, types, key counts, file size. Falls back to basic tab/colon checks without PyYAML
`yamlcheck to-json <file>`	Convert YAML to formatted JSON output. Handles multi-document YAML files
`yamlcheck lint <file>`	Check for common style issues: tabs, trailing whitespace, Windows line endings, odd indentation, missing spaces after colons, long lines
`yamlcheck keys <file>`	List top-level keys with types and value previews

Requirements

python3 (required)
PyYAML (optional — enables full parsing; install with pip3 install pyyaml)

Without PyYAML, the tool still works but uses basic regex-based checks instead of full YAML parsing.

Examples

# Validate a docker-compose file
yamlcheck validate docker-compose.yml

# Convert YAML config to JSON
yamlcheck to-json values.yaml

# Check for style issues
yamlcheck lint playbook.yml

# See what keys are defined
yamlcheck keys config.yaml

Read Full Documentation on GitHub

Metadata

Author@bytesagain1

Stars4097

Updated2026-04-14

View Author Profile

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Add to Configuration

Paste this into your clawhub.json to enable this plugin.

{
  "plugins": {
    "official-bytesagain1-yamlcheck": {
      "enabled": true,
      "auto_update": true
    }
  }
}

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