{
  "schema_version": "1.0",
  "updated_at": "2026-04-06T00:00:00Z",
  "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.json",
  "extensions": {
    "git": {
      "name": "Git Branching Workflow",
      "id": "git",
      "version": "1.0.0",
      "description": "Feature branch creation, numbering (sequential/timestamp), validation, and Git remote detection",
      "author": "spec-kit-core",
      "repository": "https://github.com/github/spec-kit",
      "download_url": "https://github.com/github/spec-kit/releases/download/ext-git-v1.0.0/git.zip",
      "tags": [
        "git",
        "branching",
        "workflow",
        "core"
      ]
    },
    "selftest": {
      "name": "Spec Kit Self-Test Utility",
      "id": "selftest",
      "version": "1.0.0",
      "description": "Verifies catalog extensions by programmatically walking through the discovery, installation, and registration lifecycle.",
      "author": "spec-kit-core",
      "repository": "https://github.com/github/spec-kit",
      "download_url": "https://github.com/github/spec-kit/releases/download/selftest-v1.0.0/selftest.zip",
      "tags": [
        "testing",
        "core",
        "utility"
      ]
    }
  }
}