diff --git a/.github/workflows/duplicate-prs.yml b/.github/workflows/duplicate-prs.yml
index 54bd9f3efd..87168dd72a 100644
--- a/.github/workflows/duplicate-prs.yml
+++ b/.github/workflows/duplicate-prs.yml
@@ -30,8 +30,8 @@ jobs:
       - name: Setup Bun
         uses: ./.github/actions/setup-bun
 
-      - name: Install opencode
-        run: curl -fsSL https://opencode.ai/install | bash
+      - name: Install dependencies
+        run: bun install
 
       - name: Build prompt
         env:
@@ -53,7 +53,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           PR_NUMBER: ${{ github.event.pull_request.number }}
         run: |
-          COMMENT=$(opencode run --agent duplicate-pr --print -f pr_info.txt "Check the attached file for PR details and search for duplicates")
+          COMMENT=$(bun script/duplicate-pr.ts -f pr_info.txt "Check the attached file for PR details and search for duplicates")
 
           gh pr comment "$PR_NUMBER" --body "_The following comment was made by an LLM, it may be inaccurate:_
 
diff --git a/script/duplicate-pr.ts b/script/duplicate-pr.ts
new file mode 100755
index 0000000000..aba078cecf
--- /dev/null
+++ b/script/duplicate-pr.ts
@@ -0,0 +1,78 @@
+#!/usr/bin/env bun
+
+import path from "path"
+import { createOpencode } from "@opencode-ai/sdk"
+import { parseArgs } from "util"
+
+async function main() {
+  const { values, positionals } = parseArgs({
+    args: Bun.argv.slice(2),
+    options: {
+      file: { type: "string", short: "f" },
+      help: { type: "boolean", short: "h", default: false },
+    },
+    allowPositionals: true,
+  })
+
+  if (values.help) {
+    console.log(`
+Usage: bun script/duplicate-pr.ts [options] <message>
+
+Options:
+  -f, --file <path>   File to attach to the prompt
+  -h, --help          Show this help message
+
+Examples:
+  bun script/duplicate-pr.ts -f pr_info.txt "Check the attached file for PR details"
+`)
+    process.exit(0)
+  }
+
+  const message = positionals.join(" ")
+  if (!message) {
+    console.error("Error: message is required")
+    process.exit(1)
+  }
+
+  const opencode = await createOpencode({ port: 0 })
+
+  try {
+    const parts: Array<{ type: "text"; text: string } | { type: "file"; url: string; filename: string; mime: string }> =
+      []
+
+    if (values.file) {
+      const resolved = path.resolve(process.cwd(), values.file)
+      const file = Bun.file(resolved)
+      if (!(await file.exists())) {
+        console.error(`Error: file not found: ${values.file}`)
+        process.exit(1)
+      }
+      parts.push({
+        type: "file",
+        url: `file://${resolved}`,
+        filename: path.basename(resolved),
+        mime: "text/plain",
+      })
+    }
+
+    parts.push({ type: "text", text: message })
+
+    const session = await opencode.client.session.create()
+    const result = await opencode.client.session
+      .prompt({
+        path: { id: session.data!.id },
+        body: {
+          agent: "duplicate-pr",
+          parts,
+        },
+        signal: AbortSignal.timeout(120_000),
+      })
+      .then((x) => x.data?.parts?.find((y) => y.type === "text")?.text ?? "")
+
+    console.log(result.trim())
+  } finally {
+    opencode.server.close()
+  }
+}
+
+main()