diff --git a/src/agents/tools/qveris-tools.test.ts b/src/agents/tools/qveris-tools.test.ts
index e081381d18038..37eabd37e8e50 100644
--- a/src/agents/tools/qveris-tools.test.ts
+++ b/src/agents/tools/qveris-tools.test.ts
@@ -382,25 +382,29 @@ describe("createQverisTools", () => {
     expect(parsed.execution_id).toBe("exec-123");
   });
 
-  it("qveris_call returns a structured error when tool was not discovered", async () => {
-    const fetchMock = vi.fn();
+  it("qveris_call proceeds with null search_id when tool was not discovered", async () => {
+    const fetchMock = vi.fn().mockResolvedValue({
+      ok: true,
+      status: 200,
+      json: () =>
+        Promise.resolve({ execution_id: "exec-1", success: true, result: { data: "ok" } }),
+      text: () => Promise.resolve(""),
+      headers: new Headers(),
+    });
     globalThis.fetch = fetchMock as typeof globalThis.fetch;
     const tools = createQverisTools({ config: makeConfig() });
     const invoke = tools.find((t) => t.name === "qveris_call")!;
 
-    const result = await invoke.execute("call-1", {
+    await invoke.execute("call-1", {
       tool_id: "unknown-tool-xyz",
       params_to_tool: '{"city": "London"}',
     });
 
-    const parsed = parseToolResult(result);
-    expect(parsed.success).toBe(false);
-    expect(parsed.error_type).toBe("tool_not_discovered");
-    expect(String(parsed.detail)).toContain("not been discovered");
-    expect(String(parsed.detail)).toContain("/search or /tools/execute");
-    expect(String(parsed.note)).toContain("Stay inside the QVeris tool workflow");
-    expect(String(parsed.note)).toContain("Never call /search");
-    expect(fetchMock).not.toHaveBeenCalled();
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+    const [url, init] = fetchMock.mock.calls[0];
+    expect(url).toContain("/tools/execute");
+    const body = JSON.parse(init.body);
+    expect(body.search_id).toBeNull();
   });
 
   it("qveris_call returns recovery_step on body-level failure", async () => {
diff --git a/src/agents/tools/qveris-tools.ts b/src/agents/tools/qveris-tools.ts
index f2a5127884ee2..243f3a549376d 100644
--- a/src/agents/tools/qveris-tools.ts
+++ b/src/agents/tools/qveris-tools.ts
@@ -430,7 +430,7 @@ async function qverisDiscover(params: {
 
 async function qverisCall(params: {
   toolId: string;
-  searchId: string;
+  searchId?: string;
   sessionId: string;
   parameters: Record<string, unknown>;
   maxResponseSize: number;
@@ -453,7 +453,7 @@ async function qverisCall(params: {
         body: JSON.stringify({
           parameters: params.parameters,
           max_response_size: params.maxResponseSize,
-          search_id: params.searchId,
+          search_id: params.searchId ?? null,
           session_id: params.sessionId,
         }),
         signal: controller.signal,
@@ -1228,20 +1228,6 @@ export function createQverisTools(options?: {
         readNumberParam(params, "max_response_size", { integer: true }) ?? maxResponseSize;
       const timeoutOverride = readNumberParam(params, "timeout_seconds");
 
-      if (!searchId) {
-        return jsonResult({
-          success: false,
-          error_type: "tool_not_discovered",
-          detail:
-            "This tool_id has not been discovered in the current session. " +
-            "Run qveris_discover first to search for the tool, then retry qveris_call with the same tool_id. " +
-            "Do NOT bypass this workflow by calling QVeris /search or /tools/execute directly.",
-          retry_hint:
-            "Use qveris_discover to find the tool, then call it with the tool_id from the results.",
-          note: QVERIS_WORKFLOW_NOTE,
-        } satisfies QverisErrorResult);
-      }
-
       let toolParams: Record<string, unknown>;
       try {
         toolParams = JSON.parse(paramsToToolRaw) as Record<string, unknown>;