diff --git a/docs/community/extensions.md b/docs/community/extensions.md
index ea019cb9e5..8fd04eb7b5 100644
--- a/docs/community/extensions.md
+++ b/docs/community/extensions.md
@@ -70,6 +70,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | CSDD — Controlled Spec-Driven Development | 把治理规范、门禁、模板安装到已有仓库；第三方扩展按清单可选安装，默认不装。 | `process` | Read+Write | [csdd](https://github.com/yuansanche/csdd) |
 | Data Model Diagram | Generates Mermaid ER diagrams from Spec Kit data models after planning | `docs` | Read+Write | [spec-kit-data-model-diagram](https://github.com/benizzio/spec-kit-data-model-diagram) |
 | DocGuard — CDD Enforcement | Documentation integrity for AI-assisted repositories: lifecycle registry, drift validation, traceability, safe archival, SARIF/JUnit, MCP, GitHub Actions, and Spec Kit hooks. | `docs` | Read+Write | [spec-kit-docguard](https://github.com/raccioly/docguard) |
+| Domain Spec Maintenance | Keeps canonical per-domain specs: read before specify/plan, updated after implement | `docs` | Read+Write | [spec-kit-domain-spec](https://github.com/jinaparkdev/spec-kit-domain-spec) |
 | Dotdog | Import GitHub Spec Kit artifacts into local knowledge graphs for validation, analysis, search, and MCP queries. | `docs` | Read+Write | [dotdog](https://github.com/specdog/dotdog) |
 | DUBSAR Memory | Local project memory for Spec Kit with explicit checkpoints, cross-session resume, and SHA-256 freshness for recorded specification, plan, and task references. | `visibility` | Read+Write | [dubsar-memory](https://github.com/kotnisofiane-bit/dubsar-memory) |
 | EARS Requirements Syntax | Author, lint, and convert requirements using EARS - the five industry-standard sentence patterns for unambiguous, testable requirements | `docs` | Read+Write | [spec-kit-ears](https://github.com/dhruv-15-03/spec-kit-ears) |
diff --git a/extensions/catalog.community.json b/extensions/catalog.community.json
index f09a534e3a..46fda52bf0 100644
--- a/extensions/catalog.community.json
+++ b/extensions/catalog.community.json
@@ -1944,6 +1944,50 @@
       "created_at": "2026-03-13T00:00:00Z",
       "updated_at": "2026-03-13T00:00:00Z"
     },
+    "domain-spec": {
+      "name": "Domain Spec Maintenance",
+      "id": "domain-spec",
+      "description": "Keeps canonical per-domain specs: read before specify/plan, updated after implement",
+      "author": "Jina Park",
+      "version": "0.1.0",
+      "download_url": "https://github.com/jinaparkdev/spec-kit-domain-spec/archive/refs/tags/v0.1.0.zip",
+      "sha256": "de5909b5eea0c4fef48cebba42e88cfc6cab06ae443a315106dbad51e5c5b6a1",
+      "repository": "https://github.com/jinaparkdev/spec-kit-domain-spec",
+      "homepage": "https://github.com/jinaparkdev/spec-kit-domain-spec",
+      "documentation": "https://github.com/jinaparkdev/spec-kit-domain-spec/blob/main/README.md",
+      "changelog": "https://github.com/jinaparkdev/spec-kit-domain-spec/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "category": "docs",
+      "effect": "read-write",
+      "requires": {
+        "speckit_version": ">=0.8.5",
+        "tools": [
+          {
+            "name": "git",
+            "required": false
+          },
+          {
+            "name": "rg",
+            "required": false
+          }
+        ]
+      },
+      "provides": {
+        "commands": 3,
+        "hooks": 3
+      },
+      "tags": [
+        "documentation",
+        "governance",
+        "specs",
+        "living-docs"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-10-28T00:00:00Z",
+      "updated_at": "2026-10-28T00:00:00Z"
+    },
     "dotdog": {
       "name": "Dotdog",
       "id": "dotdog",