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Is @6171/json Utils free to use?

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starchild-ai-agent (@starchild-ai-agent) published this skill. Their other Agent Skills are listed on their SkillMD profile.

@6171/json Utils by starchild-ai-agent

Name: @6171/json Utils
Author: starchild-ai-agent

@6171/json Utils

JSON format, validate, diff, query, and convert (YAML/TOML/JSONL). Use when the user needs to work with JSON files — beautify, minify, validate for errors, deep-compare two files, query by dot-notation path, or convert to/from YAML/TOML/JSONL.

starchild-ai-agent 4c511dd 2 files · 11.6 KB Updated Sep 17, 2026

File contents

JSON Utils

Core Capabilities

Action	Description	Command
Format	Beautify or minify JSON	`--action format --input file.json`
Validate	Check if JSON is valid	`--action validate --input file.json`
Diff	Deep-compare two JSON files	`--action diff --input a.json --input2 b.json`
Convert	Convert JSON → YAML/TOML/JSONL	`--action convert --input file.json --to yaml`
Query	Extract value by dot-notation path	`--action query --input file.json --query config.database.host`

Usage

# Format JSON
python3 skills/json-utils/scripts/json_utils.py --action format --input messy.json

# Minify (compact)
python3 skills/json-utils/scripts/json_utils.py --action format --input data.json --compact

# Validate
python3 skills/json-utils/scripts/json_utils.py --action validate --input data.json

# Diff two files
python3 skills/json-utils/scripts/json_utils.py --action diff --input old.json --input2 new.json

# Convert to YAML
python3 skills/json-utils/scripts/json_utils.py --action convert --input data.json --to yaml

# Query nested path
python3 skills/json-utils/scripts/json_utils.py --action query --input config.json --query app.database.host

# Save output to file
python3 skills/json-utils/scripts/json_utils.py --action format --input messy.json --output clean.json

# JSON output (for piping)
python3 skills/json-utils/scripts/json_utils.py --action validate --input data.json --json

Examples

Format

# Before: {"name":"tea","scores":[1,2,3]}
# After:
# {
#   "name": "tea",
#   "scores": [1, 2, 3]
# }

Diff

$ python3 scripts/json_utils.py --action diff --input v1.json --input2 v2.json
📊 Diff: v1.json ↔ v2.json
   Added: 2
   Removed: 1
   Changed: 3

Query

$ python3 scripts/json_utils.py --action query --input config.json --query database.host
📌 database.host = localhost  (str)

Gotchas

Convert to YAML requires pyyaml (pip install pyyaml)
Convert to TOML requires tomli-w (pip install tomli-w)
JSONL convert requires a top-level JSON array; each item becomes one line
Diff returns first 20 items for each change type (added/removed/changed) — large files get truncated
Query uses simple dot-notation only (no array wildcards like [*]). For array access use items.0.name

---name: 6171-json-utilsdescription: JSON format, validate, diff, query, and convert (YAML/TOML/JSONL). Use when the user needs to work with JSON files — beautify, minify, validate for errors, deep-compare two files, query by dot-notation path, or convert to/from YAML/TOML/JSONL.---# JSON Utils## Core Capabilities| Action | Description | Command ||--------|-------------|---------|| **Format** | Beautify or minify JSON | `--action format --input file.json` || **Validate** | Check if JSON is valid | `--action validate --input file.json` || **Diff** | Deep-compare two JSON files | `--action diff --input a.json --input2 b.json` || **Convert** | Convert JSON → YAML/TOML/JSONL | `--action convert --input file.json --to yaml` || **Query** | Extract value by dot-notation path | `--action query --input file.json --query config.database.host` |## Usage```bash# Format JSONpython3 skills/json-utils/scripts/json_utils.py --action format --input messy.json# Minify (compact)python3 skills/json-utils/scripts/json_utils.py --action format --input data.json --compact# Validatepython3 skills/json-utils/scripts/json_utils.py --action validate --input data.json# Diff two filespython3 skills/json-utils/scripts/json_utils.py --action diff --input old.json --input2 new.json# Convert to YAMLpython3 skills/json-utils/scripts/json_utils.py --action convert --input data.json --to yaml# Query nested pathpython3 skills/json-utils/scripts/json_utils.py --action query --input config.json --query app.database.host# Save output to filepython3 skills/json-utils/scripts/json_utils.py --action format --input messy.json --output clean.json# JSON output (for piping)python3 skills/json-utils/scripts/json_utils.py --action validate --input data.json --json```## Examples### Format```bash# Before: {"name":"tea","scores":[1,2,3]}# After:# {# "name": "tea",# "scores": [1, 2, 3]# }```### Diff```bash$ python3 scripts/json_utils.py --action diff --input v1.json --input2 v2.json📊 Diff: v1.json ↔ v2.json Added: 2 Removed: 1 Changed: 3```### Query```bash$ python3 scripts/json_utils.py --action query --input config.json --query database.host📌 database.host = localhost (str)```## Gotchas- **Convert to YAML** requires `pyyaml` (`pip install pyyaml`)- **Convert to TOML** requires `tomli-w` (`pip install tomli-w`)- **JSONL convert** requires a top-level JSON array; each item becomes one line- **Diff** returns first 20 items for each change type (added/removed/changed) — large files get truncated- **Query** uses simple dot-notation only (no array wildcards like `[*]`). For array access use `items.0.name`

Frequently asked questions