Add superpowers plugin to marketplace

Add new community plugin for superpowers, teaching Claude brainstorming,
subagent driven development with built-in code review, systematic debugging,
and red/green TDD.

Co-authored-by: Claude <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -167,29 +167,6 @@
         }
       }
     },
-    {
-      "name": "kotlin-lsp",
-      "description": "Kotlin language server for code intelligence",
-      "version": "1.0.0",
-      "author": {
-        "name": "Anthropic",
-        "email": "support@anthropic.com"
-      },
-      "source": "./plugins/kotlin-lsp",
-      "category": "development",
-      "strict": false,
-      "lspServers": {
-        "kotlin-lsp": {
-          "command": "kotlin-lsp",
-          "args": ["--stdio"],
-          "extensionToLanguage": {
-            ".kt": "kotlin",
-            ".kts": "kotlin"
-          },
-          "startupTimeout" : 120000
-        }
-      }
-    },
     {
       "name": "csharp-lsp",
       "description": "C# language server for code intelligence",
@@ -537,14 +514,14 @@
       "homepage": "https://github.com/pinecone-io/pinecone-claude-code-plugin"
     },
     {
-      "name": "huggingface-skills",
-      "description": "Build, train, evaluate, and use open source AI models, datasets, and spaces.",
+      "name": "superpowers",
+      "description": "Superpowers teaches Claude brainstorming, subagent driven development with built in code review, systematic debugging, and red/green TDD. Additionally, it teaches Claude how to author and test new skills.",
       "category": "development",
       "source": {
         "source": "url",
-        "url": "https://github.com/huggingface/skills.git"
+        "url": "https://github.com/obra/superpowers.git"
       },
-      "homepage": "https://github.com/huggingface/skills.git"
+      "homepage": "https://github.com/obra/superpowers"
     }
   ]
 }

.github/workflows/close-external-prs.yml

@@ -13,35 +13,35 @@ jobs:
     if: vars.DISABLE_EXTERNAL_PR_CHECK != 'true'
     runs-on: ubuntu-latest
     steps:
-      - name: Check if author has write access
+      - name: Check if author is org member
         uses: actions/github-script@v7
         with:
           script: |
+            const org = 'anthropics';
             const author = context.payload.pull_request.user.login;
 
-            const { data } = await github.rest.repos.getCollaboratorPermissionLevel({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              username: author
-            });
+            try {
+              await github.rest.orgs.checkMembershipForUser({
+                org: org,
+                username: author
+              });
+              console.log(`${author} is an org member, allowing PR`);
+            } catch (e) {
+              if (e.status === 404) {
+                await github.rest.issues.createComment({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: context.payload.pull_request.number,
+                  body: `Thanks for your interest! This repo only accepts contributions from Anthropic team members. If you'd like to submit a plugin to the marketplace, please submit your plugin [here](https://docs.google.com/forms/d/e/1FAIpQLSdeFthxvjOXUjxg1i3KrOOkEPDJtn71XC-KjmQlxNP63xYydg/viewform).`
+                });
 
-            if (['admin', 'write'].includes(data.permission)) {
-              console.log(`${author} has ${data.permission} access, allowing PR`);
-              return;
+                await github.rest.pulls.update({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  pull_number: context.payload.pull_request.number,
+                  state: 'closed'
+                });
+
+                console.log(`Closed PR from external contributor: ${author}`);
+              }
             }
-
-            console.log(`${author} has ${data.permission} access, closing PR`);
-
-            await github.rest.issues.createComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.payload.pull_request.number,
-              body: `Thanks for your interest! This repo only accepts contributions from Anthropic team members. If you'd like to submit a plugin to the marketplace, please submit your plugin [here](https://docs.google.com/forms/d/e/1FAIpQLSdeFthxvjOXUjxg1i3KrOOkEPDJtn71XC-KjmQlxNP63xYydg/viewform).`
-            });
-
-            await github.rest.pulls.update({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              pull_number: context.payload.pull_request.number,
-              state: 'closed'
-            });

plugins/kotlin-lsp/README.md

@@ -1,16 +0,0 @@
-Kotlin language server for Claude Code, providing code intelligence, refactoring, and analysis.
-
-## Supported Extensions
-`.kt`
-`.kts`
-
-## Installation
-
-Install the Kotlin LSP CLI.
-
-```bash
-brew install JetBrains/utils/kotlin-lsp
-```
-
-## More Information
-- [kotlin LSP](https://github.com/Kotlin/kotlin-lsp)