diff --git a/README.md b/README.md
index 01bdbfbe17..f730e10b88 100644
--- a/README.md
+++ b/README.md
@@ -233,6 +233,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | 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) |
 | Microsoft 365 Integration | Fetch Teams messages, meeting transcripts, and SharePoint/OneDrive files as local Markdown for spec generation | `integration` | Read+Write | [spec-kit-m365](https://github.com/BenBtg/spec-kit-m365) |
+| Multi-Model Review | Cross-model Spec Kit handoffs for spec authoring, implementation routing, and review. | `process` | Read+Write | [multi-model-review](https://github.com/formin/multi-model-review) |
 | Onboard | Contextual onboarding and progressive growth for developers new to spec-kit projects. Explains specs, maps dependencies, validates understanding, and guides the next step | `process` | Read+Write | [spec-kit-onboard](https://github.com/dmux/spec-kit-onboard) |
 | Optimize | Audit and optimize AI governance for context efficiency — token budgets, rule health, interpretability, compression, coherence, and echo detection | `process` | Read+Write | [spec-kit-optimize](https://github.com/sakitA/spec-kit-optimize) |
 | OWASP LLM Threat Model | OWASP Top 10 for LLM Applications 2025 threat analysis on agent artifacts | `code` | Read-only | [spec-kit-threatmodel](https://github.com/NaviaSamal/spec-kit-threatmodel) |
diff --git a/extensions/catalog.community.json b/extensions/catalog.community.json
index d00643bac5..1de30036d3 100644
--- a/extensions/catalog.community.json
+++ b/extensions/catalog.community.json
@@ -1340,6 +1340,56 @@
       "created_at": "2026-04-09T00:00:00Z",
       "updated_at": "2026-04-16T13:10:26Z"
     },
+    "multi-model-review": {
+      "name": "Multi-Model Review",
+      "id": "multi-model-review",
+      "description": "Cross-model Spec Kit handoffs for spec authoring, implementation routing, and review.",
+      "author": "formin",
+      "version": "0.1.0",
+      "download_url": "https://github.com/formin/multi-model-review/archive/refs/tags/v0.1.0.zip",
+      "repository": "https://github.com/formin/multi-model-review",
+      "homepage": "https://github.com/formin/multi-model-review",
+      "documentation": "https://github.com/formin/multi-model-review/blob/main/README.md",
+      "changelog": "https://github.com/formin/multi-model-review/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.2.0",
+        "tools": [
+          {
+            "name": "git",
+            "required": true
+          },
+          {
+            "name": "codex",
+            "required": false
+          },
+          {
+            "name": "gemini",
+            "required": false
+          },
+          {
+            "name": "claude",
+            "required": false
+          }
+        ]
+      },
+      "provides": {
+        "commands": 4,
+        "hooks": 0
+      },
+      "tags": [
+        "review",
+        "workflow",
+        "multi-model",
+        "spec-driven-development",
+        "code"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-05-04T02:51:52Z",
+      "updated_at": "2026-05-04T02:51:52Z"
+    },
     "onboard": {
       "name": "Onboard",
       "id": "onboard",