Add external plugin atlassian-twg-cli (#2980)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.github/plugin/marketplace.json

@@ -156,6 +156,35 @@
       "description": "Arize AX platform skills for LLM observability, evaluation, and optimization. Includes trace export, instrumentation, datasets, experiments, evaluators, AI provider integrations, annotations, prompt optimization, and deep linking to the Arize UI.",
       "version": "1.0.0"
     },
+    {
+      "name": "atlassian-twg-cli",
+      "description": "Installs and configures Atlassian Teamwork Graph CLI (`twg`) for use with GitHub Copilot. After setup, the CLI provides access to authorized work context across Jira, Confluence, Bitbucket, and connected tools.",
+      "version": "1.0.10",
+      "author": {
+        "name": "Atlassian",
+        "url": "https://www.atlassian.com"
+      },
+      "repository": "https://github.com/atlassian-labs/twg-plugins",
+      "homepage": "https://developer.atlassian.com/cloud/twg-cli/",
+      "license": "Apache-2.0",
+      "keywords": [
+        "atlassian",
+        "teamwork-graph",
+        "twg",
+        "jira",
+        "confluence",
+        "bitbucket",
+        "jsm",
+        "rovo",
+        "work-context",
+        "project-management"
+      ],
+      "source": {
+        "source": "github",
+        "repo": "atlassian-labs/twg-plugins",
+        "sha": "49f3a6f9c3fbcd4cd9edb5fd3282bb878322e447"
+      }
+    },
     {
       "name": "automate-this",
       "source": "plugins/automate-this",

plugins/external.json

@@ -104,6 +104,35 @@
       "sha": "84136d82da104af9792040e91392daff098e6ff9"
     }
   },
+  {
+    "name": "atlassian-twg-cli",
+    "description": "Installs and configures Atlassian Teamwork Graph CLI (`twg`) for use with GitHub Copilot. After setup, the CLI provides access to authorized work context across Jira, Confluence, Bitbucket, and connected tools.",
+    "version": "1.0.10",
+    "author": {
+      "name": "Atlassian",
+      "url": "https://www.atlassian.com"
+    },
+    "repository": "https://github.com/atlassian-labs/twg-plugins",
+    "homepage": "https://developer.atlassian.com/cloud/twg-cli/",
+    "license": "Apache-2.0",
+    "keywords": [
+      "atlassian",
+      "teamwork-graph",
+      "twg",
+      "jira",
+      "confluence",
+      "bitbucket",
+      "jsm",
+      "rovo",
+      "work-context",
+      "project-management"
+    ],
+    "source": {
+      "source": "github",
+      "repo": "atlassian-labs/twg-plugins",
+      "sha": "49f3a6f9c3fbcd4cd9edb5fd3282bb878322e447"
+    }
+  },
   {
     "name": "azure",
     "description": "Microsoft Azure MCP Server and skills for cloud resource management, deployments, and Azure services. Manage your Azure infrastructure, monitor applications, and deploy resources directly from Copilot.",