diff --git a/docs/community/extensions.md b/docs/community/extensions.md
index a364698cbd..747403fca6 100644
--- a/docs/community/extensions.md
+++ b/docs/community/extensions.md
@@ -67,6 +67,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | Conformidad Software Humano | Checks that project artifacts contain what the Software Humano manifesto requires and that every absence is declared as an approved exception. | `docs` | Read-only | [software-humano-speckit](https://github.com/dacunao/software-humano-speckit) |
 | ContextForge MCP | Integrates codebase-memory-mcp + headroom into Spec Kit — graph-based code intelligence and context compression for the implement phase | `code` | Read+Write | [contextforge-mcp](https://github.com/capatinore/contextforge-mcp) |
 | Cost Tracker | Track real LLM dollar cost across SDD workflows — per-feature budgets, per-integration comparison, and finance-ready exports | `visibility` | Read+Write | [spec-kit-cost](https://github.com/Quratulain-bilal/spec-kit-cost) |
+| 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) |
 | 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) |
diff --git a/extensions/catalog.community.json b/extensions/catalog.community.json
index 82f4428773..21836e451d 100644
--- a/extensions/catalog.community.json
+++ b/extensions/catalog.community.json
@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-10-21T00:00:00Z",
+  "updated_at": "2026-10-22T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "adrkit": {
@@ -1706,6 +1706,61 @@
       "created_at": "2026-05-03T00:00:00Z",
       "updated_at": "2026-05-05T00:00:00Z"
     },
+    "csdd": {
+      "name": "CSDD — Controlled Spec-Driven Development",
+      "id": "csdd",
+      "description": "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。",
+      "author": "CSDD",
+      "version": "1.2.0",
+      "download_url": "https://github.com/yuansanche/csdd/archive/refs/tags/v1.2.0.zip",
+      "sha256": "ba9230b609739c39d0b4591c5b0875bcd28aff0d35401edb808fdb1815ce1cbd",
+      "repository": "https://github.com/yuansanche/csdd",
+      "homepage": "https://github.com/yuansanche/csdd",
+      "documentation": "https://github.com/yuansanche/csdd/blob/main/README.md",
+      "changelog": "https://github.com/yuansanche/csdd/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "category": "process",
+      "effect": "read-write",
+      "requires": {
+        "speckit_version": ">=1.1.3",
+        "tools": [
+          {
+            "name": "bash",
+            "required": true
+          },
+          {
+            "name": "python3",
+            "required": true
+          },
+          {
+            "name": "git",
+            "required": true
+          },
+          {
+            "name": "curl",
+            "required": true
+          },
+          {
+            "name": "unzip",
+            "required": true
+          }
+        ]
+      },
+      "provides": {
+        "commands": 4,
+        "hooks": 0
+      },
+      "tags": [
+        "governance",
+        "quality-gate",
+        "spec-driven-development"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-10-22T00:00:00Z",
+      "updated_at": "2026-10-22T00:00:00Z"
+    },
     "data-model-diagram": {
       "name": "Data Model Diagram",
       "id": "data-model-diagram",