defold-native-extension-editing

Outline required files and structure for Defold native extensions.

81|6|Updated Feb 17, 2026
One-click install
npx skills add https://github.com/indiesoftby/defold-agent-config --skill defold-native-extension-editing-indiesoftby
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: defold-native-extension-editing
Source: https://github.com/indiesoftby/defold-agent-config/tree/main/.agents/skills/defold-native-extension-editing
Command: npx skills add https://github.com/indiesoftby/defold-agent-config --skill defold-native-extension-editing-indiesoftby

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Defold native extension development often requires a precise folder structure, manifest configuration, and cross-language bindings. This guide provides a clear blueprint to set up and maintain native extensions quickly and with fewer integration errors.

Core Features & Use Cases

  • Clear project layout outlines required files like ext.manifest and the src/include/lib directories.
  • Cross-language guidance covers C/C++ and JavaScript extension code patterns and how to expose API to Defold.
  • Platform-ready templates demonstrates how to organize libraries and API definitions for multiple targets (Windows, Linux, macOS, iOS, Android).

Quick Start

Create a new extension folder with ext.manifest, add your source under src/ and include/ as needed, then adapt the sample code to build against your target platform.

Frequently Asked Questions about defold-native-extension-editing

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

FAQPage Schema
How do I structure a Defold native extension project?

A Defold native extension requires a specific folder structure including an ext.manifest file, src/ directories for C/C++ sources, and include/ directories for headers. Organizing libraries and API definitions under these paths ensures dmSDK compatibility and reduces integration errors.

What files are required for a Defold native extension?

Required files for a Defold native extension include the ext.manifest configuration file, C/C++ source files under the src directory, and any necessary headers in the include directory. Platform-specific libraries must also be organized for targets like Windows, macOS, iOS, and Android.

How do I expose C++ functions to Lua in Defold?

Exposing C++ functions to Lua in Defold involves writing C/C++ extension code patterns that define API bindings compatible with dmSDK conventions. You must configure the API definitions within your extension structure to bridge the cross-language gap correctly.

Can I use JavaScript sources in a Defold native extension?

Yes, Defold native extension development supports JavaScript source code patterns alongside C/C++. The extension guide provides cross-language guidance to help you integrate JS sources and expose their APIs to the Defold engine.

How do I configure ext.manifest for multiple platforms?

Configuring ext.manifest for multiple platforms requires formatting the manifest to declare libraries and API definitions for targets like Windows, Linux, macOS, iOS, and Android. The manifest must enforce compatibility with dmSDK conventions to ensure successful multi-platform builds.

Why is my Defold native extension failing to build?

Defold native extension builds often fail due to incorrect folder structure, improper ext.manifest formatting, or dmSDK convention incompatibilities. Enforcing a clear code organization with correct src and include directories reduces these integration errors.