Placeholder text

internal/agents/review.go

@@ -220,17 +220,12 @@ func (m *Manager) reviewPrompt(ctx context.Context, task api.Task, project api.P
 			return "", err
 		}
 		previous = prev.CommitSha
-	} else {
-		parent, err := git.Parent(project.RepoPath, snap.CommitSha)
-		if err != nil {
-			return "", err
-		}
-		previous = parent
 	}
 	changes, err := git.Compare(project.RepoPath, project.DefaultBranch, snap.CommitSha, snap.TreeSha, previous)
 	if err != nil {
 		return "", err
 	}
+	previous = changes.Base
 	if len(changes.Files) == 0 {
 		return "", nil
 	}

internal/git/changes.go

@@ -25,10 +25,6 @@ func Changes(dir, defaultBranch, since string) (api.TaskChanges, error) {
 	return Compare(dir, defaultBranch, "HEAD", tree, since)
 }
 
-func Parent(dir, commit string) (string, error) {
-	return run(dir, "rev-parse", "--verify", commit+"^")
-}
-
 func Compare(dir, defaultBranch, head, tree, since string) (api.TaskChanges, error) {
 	base := since
 	if base == "" {

internal/server/changes.go

@@ -86,7 +86,7 @@ func (s *Server) snapshotChanges(w http.ResponseWriter, r *http.Request, t api.T
 
 func (s *Server) stepBase(r *http.Request, t api.Task, snap api.Snapshot) (string, error) {
 	if snap.N == 1 {
-		return git.Parent(t.WorktreePath, snap.CommitSha)
+		return "", nil
 	}
 	prev, err := s.store.GetSnapshot(r.Context(), t.Id, snap.N-1)
 	if err != nil {