From 30b0bfb6399e5aeb8e3779d26695e8334228a18b Mon Sep 17 00:00:00 2001
From: Brace Sproul <braceasproul@gmail.com>
Date: Tue, 19 Aug 2025 17:11:48 -0700
Subject: [PATCH] feat: Dont open empty PRs (#782)

---
 .../src/graphs/programmer/nodes/open-pr.ts    | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/apps/open-swe/src/graphs/programmer/nodes/open-pr.ts b/apps/open-swe/src/graphs/programmer/nodes/open-pr.ts
index 6c3c7343..5068c987 100644
--- a/apps/open-swe/src/graphs/programmer/nodes/open-pr.ts
+++ b/apps/open-swe/src/graphs/programmer/nodes/open-pr.ts
@@ -113,10 +113,27 @@ export async function openPullRequest(
     );
   }
 
+  const repoPath = getRepoAbsolutePath(state.targetRepository);
+
+  // First, verify that there are changed files
+  const gitDiffRes = await sandbox.process.executeCommand(
+    `git diff --name-only ${state.targetRepository.branch ?? ""}`,
+    repoPath,
+  );
+  if (gitDiffRes.exitCode !== 0 || gitDiffRes.result.trim().length === 0) {
+    // no changed files
+    const sandboxDeleted = await deleteSandbox(sandboxSessionId);
+    return {
+      ...(sandboxDeleted && {
+        sandboxSessionId: undefined,
+        dependenciesInstalled: false,
+      }),
+    };
+  }
+
   let branchName = state.branchName;
   let updatedTaskPlan: TaskPlan | undefined;
 
-  const repoPath = getRepoAbsolutePath(state.targetRepository);
   const changedFiles = await getChangedFilesStatus(repoPath, sandbox, config);
 
   if (changedFiles.length > 0) {