diff --git a/src/commands/install.ts b/src/commands/install.ts
index 35506e8..c2412bb 100644
--- a/src/commands/install.ts
+++ b/src/commands/install.ts
@@ -25,7 +25,7 @@ export default defineCommand({
     to: {
       type: "string",
       default: "opencode",
-      description: "Target format (opencode | codex | droid | cursor | pi | gemini)",
+      description: "Target format (opencode | codex | droid | cursor | pi | copilot | gemini)",
     },
     output: {
       type: "string",
@@ -187,6 +187,10 @@ function resolveTargetOutputRoot(
     const base = hasExplicitOutput ? outputRoot : process.cwd()
     return path.join(base, ".gemini")
   }
+  if (targetName === "copilot") {
+    const base = hasExplicitOutput ? outputRoot : process.cwd()
+    return path.join(base, ".github")
+  }
   return outputRoot
 }