Code Generation

Generate C++ headers from JSON definitions and WIT interfaces.

1|Updated Dec 2, 2025
One-click install
npx skills add https://github.com/kmt-t/fireball --skill code-generation-kmt-t
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Code Generation
Source: https://github.com/kmt-t/fireball/tree/main/.agent/skills/code_generator
Command: npx skills add https://github.com/kmt-t/fireball --skill code-generation-kmt-t

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires wit-parser, and includes scripts (resource) components.

What problem does it solve?

This skill reduces manual boilerplate by automatically generating C++ headers from JSON definitions and WIT interfaces, ensuring consistent projections across projects.

Core Features & Use Cases

  • Automated header generation: Produce C++ headers from JSON data and WIT interface definitions.
  • Interoperable scaffolding: Generate language-appropriate stubs and interfaces to maintain alignment between data models and host/guest boundaries.
  • Use Case: When you maintain data schemas in JSON and interface contracts in WIT, use this skill to derive ready-to-use C++ headers and interface scaffolding for embedding a WASM runtime.

Quick Start

Run the generator on the included example: python3 scripts/generator.py --input examples/example.json --output inc/fireball/example.hxx

Frequently Asked Questions about Code Generation

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate C++ headers from JSON definitions and WIT interfaces?▼

Generating C++ headers from JSON definitions and WIT interfaces is automated by running Python scripts that parse your schemas to produce ready-to-use header files and interface scaffolding for embedded projects.

What does generating C++ headers from WIT interfaces solve for embedded projects?▼

Generating C++ headers from WIT interfaces solves the problem of manual boilerplate by ensuring consistent projections and stable interfaces across host and guest boundaries for reproducible embedded builds.

Do I need Python and wit-parser to generate C++ headers from JSON definitions?▼

Yes, you need Python 3 and the wit-parser package to run the included scripts that parse JSON definitions and WIT interfaces for generating the corresponding C++ headers.

What is the best way to automate code generation for WASM runtime scaffolding?▼

The best way to automate code generation for WASM runtime scaffolding is to use scripts that derive language-appropriate stubs and C++ headers from your WIT interface contracts, maintaining alignment between data models and host boundaries.

Can I produce interoperable C++ stubs from WIT interfaces for reproducible builds?▼

Yes, you can produce interoperable C++ stubs from WIT interfaces to maintain alignment between data models and host boundaries, specifically targeting reproducible builds for embedded projects requiring stable interfaces.