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internal/workflow/errors.go

@@ -0,0 +1,24 @@
+package workflow
+
+import "errors"
+
+// AwaitingHITLError indicates the workflow paused before a HITL node for human approval.
+type AwaitingHITLError struct {
+	RunID    string
+	NodeID   string
+	NodeLabel string
+	Prompt   string
+	Reviewer string
+}
+
+func (e *AwaitingHITLError) Error() string {
+	if e == nil {
+		return "workflow awaiting human approval"
+	}
+	return "workflow awaiting human approval at node " + e.NodeID
+}
+
+func IsAwaitingHITL(err error) bool {
+	var target *AwaitingHITLError
+	return errors.As(err, &target)
+}