json-yaml-converter

json-yaml-converter is a skill for Claude Code, Codex from AIDotNet/MoYuCode. It costs 26 tokens per session (242 once invoked), scanned A, original, MIT.

A command-line tool for converting configuration files between JSON, YAML, and TOML, checking whether they are valid, and formatting them for easier reading.

In plain words
What is it for?
Use it to convert config files between formats, validate JSON or YAML, and prettify files with consistent indentation.
Why use it?
It avoids manually rewriting configuration and helps catch formatting or syntax errors before a program reads the file.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; mentions Codex.

Good fit Use it to convert config files between formats, validate JSON or YAML, and prettify files with consistent indentation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aidotnet/moyucode/json-yaml-converter
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add AIDotNet/MoYuCode --skill json-yaml-converter
Clone the repo
git clone --depth 1 https://github.com/AIDotNet/MoYuCode

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for json-yaml-converter

README.md
[![agentmods](https://agentmods.dev/badge/skills/aidotnet/moyucode/json-yaml-converter/github.svg)](https://agentmods.dev/skills/aidotnet/moyucode/json-yaml-converter)
Your own site
<a href="https://agentmods.dev/skills/aidotnet/moyucode/json-yaml-converter"><img src="https://agentmods.dev/badge/skills/aidotnet/moyucode/json-yaml-converter/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for json-yaml-converter

Your own site · 80×15
<a href="https://agentmods.dev/skills/aidotnet/moyucode/json-yaml-converter"><img src="https://agentmods.dev/badge/skills/aidotnet/moyucode/json-yaml-converter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 242 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00026 $0.00242
Opus 5 $0.00013 $0.00121
Sonnet 5 $0.00005 $0.00048
Haiku 4.5 $0.00003 $0.00024

Measured 10d ago against content hash 61707d906426, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

json-yaml-converter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/json_yaml_converter.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/tools/json-yaml-converter/SKILL.md · 43 lines

What it actually says

JSON/YAML Converter Tool

Description

Convert between JSON, YAML, and TOML formats with validation and formatting.

Trigger

  • /convert-config command
  • User requests format conversion
  • User needs to validate JSON/YAML

Usage

# Convert JSON to YAML
python scripts/json_yaml_converter.py convert --input config.json --output config.yaml

# Convert YAML to JSON
python scripts/json_yaml_converter.py convert --input config.yaml --output config.json

# Validate file
python scripts/json_yaml_converter.py validate --input config.yaml

# Format/prettify
python scripts/json_yaml_converter.py format --input config.json --indent 2

Tags

json, yaml, toml, config, convert

Compatibility

  • Codex: ✅
  • Claude Code: ✅
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 43 lines · 26 tokens per session scan A 61707d906426

Subscribe to this mod's changes

json-yaml-converter is a skill published in the GitHub repository AIDotNet/MoYuCode (85 stars, last pushed 7mo ago), licensed MIT. It adds 26 tokens to every session and 242 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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