diff --git a/docs/community/extensions.md b/docs/community/extensions.md
index e77c40bcfa..67b950d4bb 100644
--- a/docs/community/extensions.md
+++ b/docs/community/extensions.md
@@ -145,6 +145,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | Spec Validate | Comprehension validation, review gating, and approval state for spec-kit artifacts — staged quizzes, peer review SLA, and a hard gate before /speckit.implement | `process` | Read+Write | [spec-kit-spec-validate](https://github.com/aeltayeb/spec-kit-spec-validate) |
 | Spec-Kit BDD | ATDD/BDD extension: convert specs to Gherkin scenarios, scaffold step definitions, and verify acceptance test coverage | `process` | Read+Write | [spec-kit-bdd](https://github.com/RSginer/spec-kit-bdd) |
 | Spec2Cloud | Spec-driven workflow tuned for shipping to Azure | `process` | Read+Write | [spec2cloud](https://github.com/Azure-Samples/Spec2Cloud) |
+| SpecAssay Check | Gate 2 refuses silent gaps and emits a trace-manifest (trace-manifest.json) | `visibility` | Read+Write | [specassay](https://github.com/rdryfoos/specassay) |
 | SpecKit Companion | Live spec-driven progress — lifecycle capture, status, resume, and a turbo pipeline profile | `visibility` | Read+Write | [speckit-companion](https://github.com/alfredoperez/speckit-companion) |
 | SpecKit Grill Me | Exhaustively resolve specification ambiguities and decisions before planning | `process` | Read+Write | [speckit-grill-me](https://github.com/yoshi1220/speckit-grill-me) |
 | SpecTest | Auto-generate test scaffolds from spec criteria, map coverage, and find untested requirements | `code` | Read+Write | [spec-kit-spectest](https://github.com/Quratulain-bilal/spec-kit-spectest) |
diff --git a/extensions/catalog.community.json b/extensions/catalog.community.json
index b35f1c849d..59a56d4f4c 100644
--- a/extensions/catalog.community.json
+++ b/extensions/catalog.community.json
@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-08-11T00:00:00Z",
+  "updated_at": "2026-08-12T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "adrkit": {
@@ -4148,6 +4148,44 @@
       "created_at": "2026-04-30T00:00:00Z",
       "updated_at": "2026-04-30T00:00:00Z"
     },
+    "specassay-check": {
+      "name": "SpecAssay Check",
+      "id": "specassay-check",
+      "description": "Gate 2 refuses silent gaps and emits a trace-manifest (trace-manifest.json).",
+      "author": "Rik Dryfoos",
+      "version": "0.3.1",
+      "download_url": "https://github.com/rdryfoos/specassay/releases/download/v0.3.1/specassay-check-0.3.1.zip",
+      "repository": "https://github.com/rdryfoos/specassay",
+      "homepage": "https://www.specassay.com",
+      "documentation": "https://github.com/rdryfoos/specassay/blob/main/extensions/specassay-check/README.md",
+      "changelog": "https://github.com/rdryfoos/specassay/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "category": "visibility",
+      "effect": "read-write",
+      "requires": {
+        "speckit_version": ">=0.14.0",
+        "tools": [
+          { "name": "bash", "required": true },
+          { "name": "python3", "required": true }
+        ]
+      },
+      "provides": {
+        "commands": 1,
+        "hooks": 1
+      },
+      "tags": [
+        "traceability",
+        "gate",
+        "ci",
+        "governance",
+        "sdd"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-08-12T00:00:00Z",
+      "updated_at": "2026-08-12T00:00:00Z"
+    },
     "speckit-superpowers-bridge": {
       "name": "Superpowers Implementation Bridge",
       "id": "speckit-superpowers-bridge",