Xpersona
agentCLAWHUBUnverified

Yamlcheck

Validate YAML syntax using python3, lint configs, and convert YAML to JSON. Use when checking syntax, finding errors, or converting formats. Skill: Yamlcheck Owner: bytesagain-lab Summary: Validate YAML syntax using python3, lint configs, and convert YAML to JSON. Use when checking syntax, finding errors, or converting formats. Tags: latest:3.0.2 Version history: v3.0.2 | 2026-03-19T11:02:08.627Z | user v3.0.2: Fixed version mismatch between script and SKILL.md. v3.0.1 | 2026-03-19T10:58:36.527Z | user v3.0.1: Fixed metadata alignment — dependencies decla

OpenClaw
View on ClawHubHomepage

Rank

62

Safety

84

Downloads

1.1k

Updated

Oct 11, 2026

Version

3.0.2

Source

CLAWHUB

About

What it does, and when to use it.

Capability contract not published. No trust telemetry is available yet. 1.1K downloads reported by the source. Last updated 10/11/2026.

Avoid when

  • Contract metadata is missing or unavailable for deterministic execution.

Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing

Public facts

Every fact links back to the source it came from.

Vendor
Clawhubvendor · observed Oct 11, 2026
Protocol compatibility
OpenClawcompatibility · observed Oct 11, 2026
Adoption signal
1.1K downloadsadoption · observed Oct 11, 2026
Latest release
3.0.2release · observed Mar 19, 2026
Handshake status
UNKNOWNsecurity

Install and run

Setup complexity: low.

clawhub skill install s174pq5f3gzez3838vt2642fmx848f1d:yamlcheck
  1. Setup complexity is classified as HIGH. You must provision dedicated cloud infrastructure or an isolated VM. Do not run this directly on your local workstation.
  2. Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Contract: missing

curl -s "https://www.xpersona.co/api/v1/agents/clawhub-bytesagain-lab-yamlcheck/snapshot"

Documentation

CLAWHUB

18,908 characters of source documentation, loaded on request.

Extracted files

3 files captured from the source.

SKILL.md

---
name: YAMLCheck
description: "Validate YAML syntax using python3, lint configs, and convert YAML to JSON. Use when checking syntax, finding errors, or converting formats."
version: "3.0.2"
author: "BytesAgain"
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: ["yaml","validator","lint","formatter","json","developer"]
categories: ["Developer Tools", "Utility"]
---

# 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

```bash
# 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
```

_meta.json

{
  "ownerId": "kn76vqrf94wk924mddj8fp4p5x8497tb",
  "slug": "yamlcheck",
  "version": "3.0.2",
  "publishedAt": 1773918128627
}

skill-card.md

## Description:

Validate YAML syntax using python3, lint configs, and convert YAML to JSON.

This skill is ready for commercial/non-commercial use.

## Publisher:

[bytesagain-lab](https://clawhub.ai/user/bytesagain-lab)

### License/Terms of Use:

MIT-0

## Use Case:

Developers and engineers use this skill to validate YAML files, lint common formatting issues, inspect top-level keys, and convert YAML documents to JSON during local configuration work.

### Deployment Geography for Use:

Global

## Known Risks and Mitigations:

Risk: The skill suggests installing PyYAML with an unpinned pip command, which can introduce dependency supply-chain or version drift risk.

Mitigation: Install PyYAML from a trusted package source and pin the dependency version in the project or execution environment.

Risk: Validation, key previews, and conversion output may display sensitive values from local YAML configuration files.

Mitigation: Review files before running previews on secrets-bearing configurations and avoid sharing terminal output from sensitive YAML files.

## Reference(s):

- [Yamlcheck on ClawHub](https://clawhub.ai/bytesagain-lab/skills/yamlcheck)
- [bytesagain-lab publisher profile](https://clawhub.ai/user/bytesagain-lab)
- [BytesAgain homepage](https://bytesagain.com)

## Skill Output:

**Output Type(s):** [text, markdown, code, shell commands, configuration, guidance]

**Output Format:** [Markdown and terminal-oriented text with inline shell commands]

**Output Parameters:** [1D]

**Other Properties Related to Output:** [May emit JSON when converting YAML input with the to-json command.]

## Skill Version(s):

3.0.2 (source: server release evidence and SKILL.md frontmatter)

## Ethical Considerations:

Users should evaluate whether this skill is appropriate for their environment, review any generated or modified files before relying on them, and apply their organization's safety, security, and compliance requirements before deployment.

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Machine-readable data

The same record, as JSON, for agents and crawlers.

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  "facts": [
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      "category": "vendor",
      "label": "Vendor",
      "value": "Clawhub",
      "href": "https://clawhub.ai/bytesagain-lab/skills/yamlcheck",
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      "sourceType": "profile",
      "confidence": "medium",
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      "description": "v3.0.2: Fixed version mismatch between script and SKILL.md.",
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      "sourceUrl": "https://clawhub.ai/bytesagain-lab/yamlcheck",
      "sourceType": "release",
      "confidence": "medium",
      "observedAt": "2026-03-19T11:02:08.627Z",
      "isPublic": true
    }
  ]
}

Record generated Oct 11, 2026.

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