diff --git a/server/src/__tests__/agent-live-run-routes.test.ts b/server/src/__tests__/agent-live-run-routes.test.ts
index a48c2dafca5e..d40298c09bf6 100644
--- a/server/src/__tests__/agent-live-run-routes.test.ts
+++ b/server/src/__tests__/agent-live-run-routes.test.ts
@@ -610,8 +610,18 @@ describe("agent live run routes", () => {
    * log, and the `allowed` audit sat above that call — so a 404 that disclosed nothing was booked
    * as a read. Control: move `logRunLogAccessAudit(..., "allowed", ...)` back above `readLog` and
    * this fails (verified, not assumed).
+   *
+   * BLO-34901: no `result` matcher. The invariant is that this 404 records NOTHING — the reader is
+   * entitled, so booking it `denied` is equally false, and a matcher pinned to `"allowed"` passes
+   * that mutation unchanged. Second control (also verified): make the route write
+   * `logRunLogAccessAudit(..., "denied", ...)` on this path and this fails.
+   *
+   * The `readLog` positive pins the path the absence assertion is about. Without it, any mutation
+   * that 404s BEFORE `readLog` writes no audit either, so the absence assertion passes while
+   * nothing is exercised — verified: a `return` above `readLog` fails this test, and fails nothing
+   * if the positive is removed.
    */
-  it("does not audit an allowed run log read when the run stored no log", async () => {
+  it("does not audit a run log read at all when the run stored no log", async () => {
     const app = await createApp();
     const { notFound } = await vi.importActual<typeof import("../errors.js")>("../errors.js");
     mockHeartbeatService.readLog.mockRejectedValue(notFound("Run log not found"));
@@ -622,9 +632,9 @@ describe("agent live run routes", () => {
     );
 
     expect(res.status, JSON.stringify(res.body)).toBe(404);
+    expect(mockHeartbeatService.readLog).toHaveBeenCalled();
     expect(mockLogActivity).not.toHaveBeenCalledWith(expect.anything(), expect.objectContaining({
       action: "heartbeat.run_log_accessed",
-      details: expect.objectContaining({ result: "allowed" }),
     }));
   });
 
@@ -743,8 +753,13 @@ describe("agent live run routes", () => {
    * `logStore: null` on the fixture rather than only rejecting `readLog`: that is the shape the
    * closure records, and it keeps the audit's own `logStore` field honest if the ordering ever
    * regresses.
+   *
+   * BLO-34901: no `result` matcher, same reasoning as the heartbeat guard above — and second
+   * control verified here too. The `readLog` positive pins the exercised path for the same reason,
+   * with its own verified mutation: a `return` above `readLog` fails this test only while that
+   * assertion is present.
    */
-  it("does not audit an allowed workspace-operation log read when the operation stored no log", async () => {
+  it("does not audit a workspace-operation log read at all when the operation stored no log", async () => {
     mockWorkspaceOperationService.getById.mockResolvedValue(
       workspaceOperationLogFixture({ logStore: null, logRef: null }),
     );
@@ -760,9 +775,9 @@ describe("agent live run routes", () => {
     );
 
     expect(res.status, JSON.stringify(res.body)).toBe(404);
+    expect(mockWorkspaceOperationService.readLog).toHaveBeenCalled();
     expect(mockLogActivity).not.toHaveBeenCalledWith(expect.anything(), expect.objectContaining({
       action: "workspace_operation.log_accessed",
-      details: expect.objectContaining({ result: "allowed" }),
     }));
   });