diff --git a/loop/state_string.go b/loop/state_string.go
new file mode 100644
index 0000000..4556a73
--- /dev/null
+++ b/loop/state_string.go
@@ -0,0 +1,39 @@
+// Code generated by "stringer -type=State -trimprefix=State"; DO NOT EDIT.
+
+package loop
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[StateUnknown-0]
+	_ = x[StateReady-1]
+	_ = x[StateWaitingForUserInput-2]
+	_ = x[StateSendingToLLM-3]
+	_ = x[StateProcessingLLMResponse-4]
+	_ = x[StateEndOfTurn-5]
+	_ = x[StateToolUseRequested-6]
+	_ = x[StateCheckingForCancellation-7]
+	_ = x[StateRunningTool-8]
+	_ = x[StateCheckingGitCommits-9]
+	_ = x[StateRunningAutoformatters-10]
+	_ = x[StateCheckingBudget-11]
+	_ = x[StateGatheringAdditionalMessages-12]
+	_ = x[StateSendingToolResults-13]
+	_ = x[StateCancelled-14]
+	_ = x[StateBudgetExceeded-15]
+	_ = x[StateError-16]
+}
+
+const _State_name = "UnknownReadyWaitingForUserInputSendingToLLMProcessingLLMResponseEndOfTurnToolUseRequestedCheckingForCancellationRunningToolCheckingGitCommitsRunningAutoformattersCheckingBudgetGatheringAdditionalMessagesSendingToolResultsCancelledBudgetExceededError"
+
+var _State_index = [...]uint8{0, 7, 12, 31, 43, 64, 73, 89, 112, 123, 141, 162, 176, 203, 221, 230, 244, 249}
+
+func (i State) String() string {
+	if i < 0 || i >= State(len(_State_index)-1) {
+		return "State(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _State_name[_State_index[i]:_State_index[i+1]]
+}