diff --git a/crates/fs/src/fake_git_repo.rs b/crates/fs/src/fake_git_repo.rs
index 751796fb83164b78dc5d6789f0ae7870eff16ce1..aea2420f9ff43fc9f36cfb9ccd90ec493014840a 100644
--- a/crates/fs/src/fake_git_repo.rs
+++ b/crates/fs/src/fake_git_repo.rs
@@ -1310,6 +1310,10 @@ impl GitRepository for FakeGitRepository {
         async { Ok(()) }.boxed()
     }
 
+    fn repair_worktrees(&self) -> BoxFuture<'_, Result<()>> {
+        async { Ok(()) }.boxed()
+    }
+
     fn set_trusted(&self, trusted: bool) {
         self.is_trusted
             .store(trusted, std::sync::atomic::Ordering::Release);
diff --git a/crates/git/src/repository.rs b/crates/git/src/repository.rs
index c42d2e28cf041e40404c1b8276ddcf5d10ca5f01..d4133898cb23eaa3863e71a59642605b305ac59e 100644
--- a/crates/git/src/repository.rs
+++ b/crates/git/src/repository.rs
@@ -923,6 +923,8 @@ pub trait GitRepository: Send + Sync {
 
     fn repair_worktrees(&self) -> BoxFuture<'_, Result<()>>;
 
+    fn repair_worktrees(&self) -> BoxFuture<'_, Result<()>>;
+
     fn set_trusted(&self, trusted: bool);
     fn is_trusted(&self) -> bool;
 }
@@ -2221,6 +2223,17 @@ impl GitRepository for RealGitRepository {
             .boxed()
     }
 
+    fn repair_worktrees(&self) -> BoxFuture<'_, Result<()>> {
+        let git_binary = self.git_binary();
+        self.executor
+            .spawn(async move {
+                let args: Vec<OsString> = vec!["worktree".into(), "repair".into()];
+                git_binary?.run(&args).await?;
+                Ok(())
+            })
+            .boxed()
+    }
+
     fn push(
         &self,
         branch_name: String,
diff --git a/crates/project/src/git_store.rs b/crates/project/src/git_store.rs
index 04448be9039df915853b020fe008411756a28967..743edadeff679ce0edd9e13a1aef0dd1b76da5fd 100644
--- a/crates/project/src/git_store.rs
+++ b/crates/project/src/git_store.rs
@@ -6160,6 +6160,33 @@ impl Repository {
         })
     }
 
+    pub fn commit_exists(&mut self, sha: String) -> oneshot::Receiver<Result<bool>> {
+        self.send_job(None, move |repo, _cx| async move {
+            match repo {
+                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
+                    let results = backend.revparse_batch(vec![sha]).await?;
+                    Ok(results.into_iter().next().flatten().is_some())
+                }
+                RepositoryState::Remote(_) => {
+                    anyhow::bail!("commit_exists is not supported for remote repositories")
+                }
+            }
+        })
+    }
+
+    pub fn repair_worktrees(&mut self) -> oneshot::Receiver<Result<()>> {
+        self.send_job(None, move |repo, _cx| async move {
+            match repo {
+                RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
+                    backend.repair_worktrees().await
+                }
+                RepositoryState::Remote(_) => {
+                    anyhow::bail!("repair_worktrees is not supported for remote repositories")
+                }
+            }
+        })
+    }
+
     pub fn remove_worktree(&mut self, path: PathBuf, force: bool) -> oneshot::Receiver<Result<()>> {
         let id = self.id;
         self.send_job(