feat(catalog): add BrownKit (brownkit) community extension (#2510) (#2520)

* feat(catalog): add BrownKit (brownkit) community extension (#2510)

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* fix: bump catalog-level updated_at to match newest entry

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

README.md

@@ -208,6 +208,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | Blueprint | Stay code-literate in AI-driven development: review a complete code blueprint for every task from spec artifacts before /speckit.implement runs | `docs` | Read+Write | [spec-kit-blueprint](https://github.com/chordpli/spec-kit-blueprint) |
 | Branch Convention | Configurable branch and folder naming conventions for /specify with presets and custom patterns | `process` | Read+Write | [spec-kit-branch-convention](https://github.com/Quratulain-bilal/spec-kit-branch-convention) |
 | Brownfield Bootstrap | Bootstrap spec-kit for existing codebases — auto-discover architecture and adopt SDD incrementally | `process` | Read+Write | [spec-kit-brownfield](https://github.com/Quratulain-bilal/spec-kit-brownfield) |
+| BrownKit | Evidence-driven capability discovery, security and QA risk assessment for existing codebases | `process` | Read+Write | [BrownKit](https://github.com/MaksimShevtsov/BrownKit) |
 | Bugfix Workflow | Structured bugfix workflow — capture bugs, trace to spec artifacts, and patch specs surgically | `process` | Read+Write | [spec-kit-bugfix](https://github.com/Quratulain-bilal/spec-kit-bugfix) |
 | Canon | Adds canon-driven (baseline-driven) workflows: spec-first, code-first, spec-drift. Requires Canon Core preset installation. | `process` | Read+Write | [spec-kit-canon](https://github.com/maximiliamus/spec-kit-canon/tree/master/extension) |
 | Catalog CI | Automated validation for spec-kit community catalog entries — structure, URLs, diffs, and linting | `process` | Read-only | [spec-kit-catalog-ci](https://github.com/Quratulain-bilal/spec-kit-catalog-ci) |

extensions/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-05-07T20:05:00Z",
+  "updated_at": "2026-05-10T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "aide": {
@@ -368,6 +368,38 @@
       "created_at": "2026-04-10T00:00:00Z",
       "updated_at": "2026-04-10T00:00:00Z"
     },
+    "brownkit": {
+      "name": "BrownKit \u2014 Brownfield Discovery for Spec-Kit",
+      "id": "brownkit",
+      "description": "Evidence-driven capability discovery, security and QA risk assessment for existing codebases.",
+      "author": "Maksim Shautsou",
+      "version": "1.0.1",
+      "download_url": "https://github.com/MaksimShevtsov/BrownKit/archive/refs/tags/v1.0.1.zip",
+      "repository": "https://github.com/MaksimShevtsov/BrownKit",
+      "homepage": "https://github.com/MaksimShevtsov/BrownKit",
+      "documentation": "https://github.com/MaksimShevtsov/BrownKit/blob/main/README.md",
+      "changelog": "https://github.com/MaksimShevtsov/BrownKit/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.1.0"
+      },
+      "provides": {
+        "commands": 10,
+        "hooks": 5
+      },
+      "tags": [
+        "brownfield",
+        "discovery",
+        "security",
+        "qa",
+        "capabilities"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-05-10T00:00:00Z",
+      "updated_at": "2026-05-10T00:00:00Z"
+    },
     "bugfix": {
       "name": "Bugfix Workflow",
       "id": "bugfix",