diff --git a/tests/runner-e2e/README.md b/tests/runner-e2e/README.md
index df9809fd140..f1abc8d33a5 100644
--- a/tests/runner-e2e/README.md
+++ b/tests/runner-e2e/README.md
@@ -14,6 +14,10 @@ environments × cases; an **execution/cell** is one parallel job; and an
 The browser creates and assigns the task. The harness does not call a private
 runner hook or write fixtures directly to the database.
 
+The launcher always sets `PAPERCLIP_ANNOUNCEMENTS_ENABLED=false` for its isolated
+instances so announcement panels do not obscure screenshot evidence. No shell
+or workflow configuration is needed, including for Daytona cells.
+
 ## Credentials
 
 Copy `.env.runner-e2e.example` to `.env.runner-e2e.local` and fill only the
diff --git a/tests/runner-e2e/dashboard.ts b/tests/runner-e2e/dashboard.ts
index 6ea1002e22e..5537e80c39f 100644
--- a/tests/runner-e2e/dashboard.ts
+++ b/tests/runner-e2e/dashboard.ts
@@ -1154,7 +1154,7 @@ export function renderRunnerE2EDashboard(input: RunnerDashboardInput) {
           <strong id="gallery-title" data-gallery-title>Screenshot evidence</strong>
           <div class="gallery-context">
             <span><strong data-gallery-profile></strong><em data-gallery-profile-detail></em></span>
-            <span><strong data-gallery-environment></strong><em data-gallery-environment-detail></em></span>
+            <span><em>Environment:</em><strong data-gallery-environment></strong><em data-gallery-environment-detail></em></span>
             <span><strong data-gallery-case></strong><em data-gallery-runtime></em></span>
           </div>
           <div class="gallery-facts">
@@ -1225,7 +1225,7 @@ export function renderRunnerE2EDashboard(input: RunnerDashboardInput) {
         profile.textContent = item.dataset.galleryProfile;
         profileDetail.textContent = item.dataset.galleryGeneration + " · " + item.dataset.galleryProvider + " · " + item.dataset.galleryModel;
         environment.textContent = item.dataset.galleryEnvironment;
-        environmentDetail.textContent = item.dataset.galleryEnvironmentProvider + " · " + item.dataset.galleryExecutionTarget;
+        environmentDetail.textContent = "Provider: " + item.dataset.galleryEnvironmentProvider + " · Target: " + item.dataset.galleryExecutionTarget;
         caseLabel.textContent = item.dataset.galleryCase;
         runtime.textContent = item.dataset.galleryRuntime + " runtime";
         status.textContent = item.dataset.galleryStatus;
diff --git a/tests/runner-e2e/harness-env.ts b/tests/runner-e2e/harness-env.ts
index d37a3964c8c..d1e9cede374 100644
--- a/tests/runner-e2e/harness-env.ts
+++ b/tests/runner-e2e/harness-env.ts
@@ -104,6 +104,8 @@ export function buildRunnerE2EProcessEnvironment(
   executions: readonly MatrixExecution[],
 ): NodeJS.ProcessEnv {
   const result = { ...source };
+  // Announcements are unrelated to the scenarios and obscure screenshot evidence.
+  result.PAPERCLIP_ANNOUNCEMENTS_ENABLED = "false";
   delete result.OPENCODE_ALLOW_ALL_MODELS;
   // Hiring needs the opt-in native API surface. Scope this to the explicit
   // manual hiring story; production and other suites retain their defaults.
diff --git a/tests/runner-e2e/support.test.ts b/tests/runner-e2e/support.test.ts
index 9e48f68ea22..655a3c4195c 100644
--- a/tests/runner-e2e/support.test.ts
+++ b/tests/runner-e2e/support.test.ts
@@ -162,7 +162,7 @@ describe("runner E2E provider environment", () => {
           { KEEP_ME: "yes", OPENCODE_ALLOW_ALL_MODELS: "ambient" },
           [execution],
         ),
-      ).toEqual({ KEEP_ME: "yes", OPENCODE_ALLOW_ALL_MODELS: "true" });
+      ).toEqual({ KEEP_ME: "yes", OPENCODE_ALLOW_ALL_MODELS: "true", PAPERCLIP_ANNOUNCEMENTS_ENABLED: "false" });
     }
 
     for (const execution of [nativeOpenCode, breadthOpenCode]) {
@@ -171,7 +171,16 @@ describe("runner E2E provider environment", () => {
           { KEEP_ME: "yes", OPENCODE_ALLOW_ALL_MODELS: "ambient" },
           [execution],
         ),
-      ).toEqual({ KEEP_ME: "yes" });
+      ).toEqual({ KEEP_ME: "yes", PAPERCLIP_ANNOUNCEMENTS_ENABLED: "false" });
+    }
+  });
+
+  it("disables announcements through the server boundary for every runner cell", () => {
+    for (const execution of runnerMatrix) {
+      const source = { PAPERCLIP_ANNOUNCEMENTS_ENABLED: "true" };
+      const env = buildRunnerE2EProcessEnvironment(source, [execution]);
+      expect(buildPaperclipServerEnvironment(env).PAPERCLIP_ANNOUNCEMENTS_ENABLED).toBe("false");
+      expect(source.PAPERCLIP_ANNOUNCEMENTS_ENABLED).toBe("true");
     }
   });
 });