jo

name	jo
description	Use this skill when the user wants to create JSON output from the command line, format data as JSON, build API payloads, or serialize shell variables into JSON structures.

Jo Plugin

JSON output from a shell — create JSON objects, arrays, and nested structures from key=value pairs.

Commands

Self

• jo self version — Print version

JSON

• jo json create — Create JSON from key=value pairs (passthrough)

Passthrough

• jo _ _ — Passthrough for any jo command

Usage Examples

• "Create a JSON object with name and age"
• "Build a JSON array from a list of values"
• "Convert shell variables to JSON format"
• "Create a nested JSON structure for an API request"

Installation

brew install jo

Examples

# Simple object
jo name=John age=30 active=true

# Nested objects
jo name=John address="city=New York zip=10001"

# Arrays
jo -a name=John name=Jane

# Reading from stdin
echo 'name=Doe' | jo

# Boolean and numbers
jo enabled=true count=42 ratio=3.14

# Empty value (null)
jo name=John title=

# Combine with jq for complex pipelines
jo name=John items="$(jo -a apple banana)" | jq '.items'

Key Features

• Simple key=value syntax for JSON creation
• Automatic type detection (strings, numbers, booleans)
• Nested objects and arrays
• stdin input support
• Pretty-print option
• Array forcing with -a flag
• Null value support via empty values