Extensify

A Spec Kit extension for creating and validating extensions and extension catalogs.

Overview

Extensify provides tooling for extension authors — scaffolding new extensions, validating them before publishing, and managing self-hosted extension catalogs.

Installation

specify extension add extensify

Commands

Command	Purpose
/speckit.extensify.create-extension	Scaffold a new extension from scratch
/speckit.extensify.validate-extension	Validate an extension directory for correctness
/speckit.extensify.create-catalog	Create a catalog.json for a self-hosted extension catalog
/speckit.extensify.validate-catalog	Validate an extension catalog.json for schema correctness

Usage

Creating a New Extension

/speckit.extensify.create-extension my-tool

The command will:

1. Ask for extension metadata (name, description, author, etc.)
2. Ask what commands the extension should provide
3. Generate the full extension scaffold with extension.yml, command stubs, README, CHANGELOG, and LICENSE

Validating an Extension

Before publishing, validate the extension directory:

/speckit.extensify.validate-extension ./my-tool

Checks extension.yml schema, command name patterns, referenced files exist, unreferenced files, hooks, and recommended supporting files.

Creating a Self-Hosted Catalog

If you maintain multiple extensions and want to make them discoverable via specify extension search:

/speckit.extensify.create-catalog

The command will:

1. Ask for the URL where you'll host the catalog
2. Optionally scan extension directories to auto-populate entries from their extension.yml manifests
3. Generate a valid catalog.json
4. Show how to register the catalog with specify extension catalog add

Validating a Catalog

/speckit.extensify.validate-catalog ./catalog.json

Checks JSON syntax, schema conformance, semver format, alphabetical ordering, ID consistency, and required fields.