diff --git a/harn/agent.json b/harn/agent.json
new file mode 100644
index 00000000..af0ef0f4
--- /dev/null
+++ b/harn/agent.json
@@ -0,0 +1,39 @@
+{
+  "id": "harn",
+  "name": "Harn",
+  "version": "0.8.133",
+  "description": "Harn runs .harn agent pipelines as a native ACP coding agent over stdio. Powers the Burin Code workbench.",
+  "repository": "https://github.com/burin-labs/harn",
+  "website": "https://harnlang.com",
+  "authors": ["Burin Labs"],
+  "license": "Apache-2.0",
+  "distribution": {
+    "binary": {
+      "darwin-aarch64": {
+        "archive": "https://github.com/burin-labs/harn/releases/download/v0.8.133/harn-aarch64-apple-darwin.tar.gz",
+        "cmd": "./harn",
+        "args": ["serve", "acp"]
+      },
+      "darwin-x86_64": {
+        "archive": "https://github.com/burin-labs/harn/releases/download/v0.8.133/harn-x86_64-apple-darwin.tar.gz",
+        "cmd": "./harn",
+        "args": ["serve", "acp"]
+      },
+      "linux-aarch64": {
+        "archive": "https://github.com/burin-labs/harn/releases/download/v0.8.133/harn-aarch64-unknown-linux-gnu.tar.gz",
+        "cmd": "./harn",
+        "args": ["serve", "acp"]
+      },
+      "linux-x86_64": {
+        "archive": "https://github.com/burin-labs/harn/releases/download/v0.8.133/harn-x86_64-unknown-linux-gnu.tar.gz",
+        "cmd": "./harn",
+        "args": ["serve", "acp"]
+      },
+      "windows-x86_64": {
+        "archive": "https://github.com/burin-labs/harn/releases/download/v0.8.133/harn-x86_64-pc-windows-msvc.zip",
+        "cmd": "harn.exe",
+        "args": ["serve", "acp"]
+      }
+    }
+  }
+}
diff --git a/harn/icon.svg b/harn/icon.svg
new file mode 100644
index 00000000..af223eca
--- /dev/null
+++ b/harn/icon.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16">
+  <path fill="currentColor" d="M11.2 1.4 14.6 4.8a1 1 0 0 1 0 1.4l-1.5 1.5-4.8-4.8 1.5-1.5a1 1 0 0 1 1.4 0ZM7.6 3.6l4.8 4.8-6.9 6.9a1 1 0 0 1-.5.27l-3.4.73a.6.6 0 0 1-.71-.71l.73-3.4a1 1 0 0 1 .27-.5l5.6-5.6Zm-4.5 8.1-.4 1.9 1.9-.4-1.5-1.5Z"/>
+</svg>