diff --git a/.factory-plugin/marketplace.json b/.factory-plugin/marketplace.json
index 4282159..686ce29 100644
--- a/.factory-plugin/marketplace.json
+++ b/.factory-plugin/marketplace.json
@@ -53,6 +53,17 @@
       "description": "Pull request lifecycle skills: create PRs with consistent conventions and follow up on them until merge-ready",
       "source": "./plugins/code-review",
       "category": "productivity"
+    },
+    {
+      "name": "sonarqube",
+      "description": "Official SonarQube plugin: the SonarQube MCP server, sonar-* skills for analysis, issues and fixes, quality gates, coverage, duplication, dependency risks and their triage, and a sonarqube-reviewer droid. Works with SonarQube Cloud and SonarQube Server",
+      "source": {
+        "source": "url",
+        "url": "https://github.com/SonarSource/sonarqube-agent-plugins.git",
+        "sha": "32ca01408a48691f57ec0ca8d8f896a42f38ec74"
+      },
+      "category": "quality",
+      "homepage": "https://github.com/SonarSource/sonarqube-agent-plugins"
     }
   ]
 }
diff --git a/README.md b/README.md
index 62f7f3f..491d764 100644
--- a/README.md
+++ b/README.md
@@ -101,6 +101,10 @@ Skills for continuous learning and improvement.
 
 Autonomous experiment loop for optimization research. Try an idea, measure it, keep what works, discard what doesn't, repeat. Works standalone or as a mission worker.
 
+### sonarqube
+
+Official [SonarQube](https://www.sonarsource.com/products/sonarqube/) plugin, sourced from [SonarSource/sonarqube-agent-plugins](https://github.com/SonarSource/sonarqube-agent-plugins) at a pinned commit. It ships the SonarQube MCP server (run locally by the `sonar` CLI), `sonar-*` skills for analysis, issues and fixes, quality gates, coverage, duplication, dependency risks and their triage, and a `sonarqube-reviewer` droid with no edit tools. Works with SonarQube Cloud and SonarQube Server. Requires the [`sonar` CLI](https://github.com/SonarSource/sonarqube-cli), a container runtime, and `sonar auth login`.
+
 ## Plugin Structure
 
 Each plugin follows the Factory plugin format: