diff --git a/action/git.go b/action/git.go
index 8c657c8..193ce4b 100644
--- a/action/git.go
+++ b/action/git.go
@@ -78,6 +78,11 @@ type GitCommitInput struct {
 
 // GitCommitActivity commits changes in a worktree.
 func GitCommitActivity(ctx context.Context, in GitCommitInput) error {
+	// Configure git user for commits if not already configured
+	// (worktrees don't inherit config from main repo)
+	exec.CommandContext(ctx, "git", "-C", in.WorktreePath, "config", "user.email", "poimen@riotpiao.com").Run()
+	exec.CommandContext(ctx, "git", "-C", in.WorktreePath, "config", "user.name", "Poimen Agent").Run()
+
 	// Stage all changes
 	cmd := exec.CommandContext(ctx, "git", "-C", in.WorktreePath, "add", "-A")
 	if err := cmd.Run(); err != nil {