diff --git a/packages/server/scripts/copy-opencode-config.mjs b/packages/server/scripts/copy-opencode-config.mjs
index b63b8627..ab952f9d 100644
--- a/packages/server/scripts/copy-opencode-config.mjs
+++ b/packages/server/scripts/copy-opencode-config.mjs
@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+import { spawnSync } from "child_process"
 import { cpSync, existsSync, mkdirSync, rmSync } from "fs"
 import path from "path"
 import { fileURLToPath } from "url"
@@ -8,12 +9,37 @@ const __dirname = path.dirname(__filename)
 const cliRoot = path.resolve(__dirname, "..")
 const sourceDir = path.resolve(cliRoot, "../opencode-config")
 const targetDir = path.resolve(cliRoot, "dist/opencode-config")
+const nodeModulesDir = path.resolve(sourceDir, "node_modules")
+const npmCmd = process.platform === "win32" ? "npm.cmd" : "npm"
 
 if (!existsSync(sourceDir)) {
   console.error(`[copy-opencode-config] Missing source directory at ${sourceDir}`)
   process.exit(1)
 }
 
+if (!existsSync(nodeModulesDir)) {
+  console.log(`[copy-opencode-config] Installing opencode-config dependencies in ${sourceDir}`)
+  const result = spawnSync(
+    npmCmd,
+    [
+      "install",
+      "--prefix",
+      sourceDir,
+      "--omit=dev",
+      "--ignore-scripts",
+      "--fund=false",
+      "--audit=false",
+      "--package-lock=false",
+      "--workspaces=false",
+    ],
+    { cwd: sourceDir, stdio: "inherit", env: { ...process.env, npm_config_workspaces: "false" } },
+  )
+  if (result.status !== 0) {
+    console.error("[copy-opencode-config] Failed to install opencode-config dependencies")
+    process.exit(result.status ?? 1)
+  }
+}
+
 rmSync(targetDir, { recursive: true, force: true })
 mkdirSync(path.dirname(targetDir), { recursive: true })
 cpSync(sourceDir, targetDir, { recursive: true })