diff --git a/src/agent/agent-invocation.repository.ts b/src/agent/agent-invocation.repository.ts
index 0c8179c..fd4fb6c 100644
--- a/src/agent/agent-invocation.repository.ts
+++ b/src/agent/agent-invocation.repository.ts
@@ -139,7 +139,15 @@ export class AgentInvocationRepository {
   private sanitizeInput(
     input: CreateAgentInvocationRecordInput,
   ): CreateAgentInvocationRecordInput {
-    return redactSensitive(input);
+    const redacted = redactSensitive({
+      ...input,
+      tokenEstimate: undefined,
+    });
+
+    return {
+      ...redacted,
+      tokenEstimate: input.tokenEstimate,
+    };
   }
 
   private inputDigest(