fix: keep session sanitizer stable

src/agents/pi-embedded-helpers.ts

@@ -95,9 +95,10 @@ export async function sanitizeSessionMessagesImages(
 ): Promise<AgentMessage[]> {
   // We sanitize historical session messages because Anthropic can reject a request
   // if the transcript contains oversized base64 images (see MAX_IMAGE_DIMENSION_PX).
-  const base = options?.sanitizeToolCallIds
+  const sanitizedIds = options?.sanitizeToolCallIds
     ? sanitizeToolCallIdsForCloudCodeAssist(messages)
     : messages;
+  const base = sanitizedIds;
   const out: AgentMessage[] = [];
   for (const msg of base) {
     if (!msg || typeof msg !== "object") {

src/agents/session-tool-result-guard.test.ts

@@ -1,5 +1,4 @@
 import type { AgentMessage } from "@mariozechner/pi-agent-core";
-
 import { SessionManager } from "@mariozechner/pi-coding-agent";
 import { describe, expect, it } from "vitest";