diff --git a/claudetool/codereview/differential.go b/claudetool/codereview/differential.go
index a4510b8..334e67d 100644
--- a/claudetool/codereview/differential.go
+++ b/claudetool/codereview/differential.go
@@ -29,7 +29,7 @@
 func (r *CodeReviewer) Tool() *llm.Tool {
 	spec := &llm.Tool{
 		Name:        "codereview",
-		Description: `Run an automated code review.`,
+		Description: `Run an automated code review before presenting git commits to the user. Call if/when you've completed your current work and are ready for user feedback.`,
 		// If you modify this, update the termui template for prettier rendering.
 		InputSchema: llm.EmptySchema(),
 		Run:         r.Run,