diff --git a/README.md b/README.md
index dac427e4b2..cd7afdb073 100644
--- a/README.md
+++ b/README.md
@@ -235,6 +235,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | MAQA Linear Integration | Linear integration for MAQA — syncs issues and sub-issues across workflow states as features progress | `integration` | Read+Write | [spec-kit-maqa-linear](https://github.com/GenieRobot/spec-kit-maqa-linear) |
 | MAQA Trello Integration | Trello board integration for MAQA — populates board from specs, moves cards, real-time checklist ticking | `integration` | Read+Write | [spec-kit-maqa-trello](https://github.com/GenieRobot/spec-kit-maqa-trello) |
 | MarkItDown Document Converter | Convert documents (PDF, Word, PowerPoint, Excel, and more) to Markdown for use as spec reference material | `docs` | Read+Write | [spec-kit-markitdown](https://github.com/BenBtg/spec-kit-markitdown) |
+| MDE | Minimal model-driven engineering workflow with setup, next, and status commands | `process` | Read+Write | [spec-kit-mde](https://github.com/AI-MDE/spec-kit-mde) |
 | Memory Loader | Loads .specify/memory/ files before lifecycle commands so LLM agents have project governance context | `docs` | Read-only | [spec-kit-memory-loader](https://github.com/KevinBrown5280/spec-kit-memory-loader) |
 | Memory MD | Spec Kit extension for repository-native Markdown memory that captures durable decisions, bugs, and project context | `docs` | Read+Write | [spec-kit-memory-hub](https://github.com/DyanGalih/spec-kit-memory-hub) |
 | MemoryLint | Agent memory governance tool: Automatically audits and fixes boundary conflicts between AGENTS.md and the constitution. | `process` | Read+Write | [memorylint](https://github.com/RbBtSn0w/spec-kit-extensions/tree/main/memorylint) |
diff --git a/extensions/catalog.community.json b/extensions/catalog.community.json
index 449a0bf149..7b7f6baeb2 100644
--- a/extensions/catalog.community.json
+++ b/extensions/catalog.community.json
@@ -1379,6 +1379,35 @@
       "created_at": "2026-04-28T00:00:00Z",
       "updated_at": "2026-04-28T00:00:00Z"
     },
+    "mde": {
+      "name": "MDE",
+      "id": "mde",
+      "description": "A Spec Kit extension that exposes a minimal model-driven engineering workflow with setup, next, and status commands.",
+      "author": "AI-MDE",
+      "version": "0.5.1",
+      "download_url": "https://github.com/AI-MDE/spec-kit-mde/archive/refs/tags/v0.5.1.zip",
+      "repository": "https://github.com/AI-MDE/spec-kit-mde",
+      "homepage": "https://github.com/AI-MDE/spec-kit-mde",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.1.0"
+      },
+      "provides": {
+        "commands": 4,
+        "hooks": 1
+      },
+      "tags": [
+        "mde",
+        "model-driven-engineering",
+        "workflow",
+        "process"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-05-08T00:00:00Z",
+      "updated_at": "2026-05-08T00:00:00Z"
+    },
     "memory-loader": {
       "name": "Memory Loader",
       "id": "memory-loader",