diff --git a/extensions/qa-lab/src/report.test.ts b/extensions/qa-lab/src/report.test.ts
new file mode 100644
index 00000000000..15f9294d4b9
--- /dev/null
+++ b/extensions/qa-lab/src/report.test.ts
@@ -0,0 +1,29 @@
+import { describe, expect, it } from "vitest";
+import { renderQaMarkdownReport } from "./report.js";
+
+describe("renderQaMarkdownReport", () => {
+  it("renders multiline scenario details in fenced blocks", () => {
+    const report = renderQaMarkdownReport({
+      title: "QA",
+      startedAt: new Date("2026-04-08T10:00:00.000Z"),
+      finishedAt: new Date("2026-04-08T10:00:02.000Z"),
+      scenarios: [
+        {
+          name: "Character vibes: Gollum improv",
+          status: "pass",
+          steps: [
+            {
+              name: "records transcript",
+              status: "pass",
+              details: "USER Alice: hello\n\nASSISTANT OpenClaw: my precious build",
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(report).toContain("```text");
+    expect(report).toContain("USER Alice: hello");
+    expect(report).toContain("ASSISTANT OpenClaw: my precious build");
+  });
+});
diff --git a/extensions/qa-lab/src/report.ts b/extensions/qa-lab/src/report.ts
index ff8c254d92d..f0d9b8c0704 100644
--- a/extensions/qa-lab/src/report.ts
+++ b/extensions/qa-lab/src/report.ts
@@ -11,6 +11,15 @@ export type QaReportScenario = {
   steps?: QaReportCheck[];
 };
 
+function pushDetailsBlock(lines: string[], label: string, details: string, indent = "") {
+  if (!details.includes("\n")) {
+    lines.push(`${indent}- ${label}: ${details}`);
+    return;
+  }
+  lines.push(`${indent}- ${label}:`);
+  lines.push("", "```text", details, "```");
+}
+
 export function renderQaMarkdownReport(params: {
   title: string;
   startedAt: Date;
@@ -45,7 +54,7 @@ export function renderQaMarkdownReport(params: {
     for (const check of checks) {
       lines.push(`- [${check.status === "pass" ? "x" : " "}] ${check.name}`);
       if (check.details) {
-        lines.push(`  - ${check.details}`);
+        pushDetailsBlock(lines, "Details", check.details, "  ");
       }
     }
   }
@@ -57,14 +66,14 @@ export function renderQaMarkdownReport(params: {
       lines.push("");
       lines.push(`- Status: ${scenario.status}`);
       if (scenario.details) {
-        lines.push(`- Details: ${scenario.details}`);
+        pushDetailsBlock(lines, "Details", scenario.details);
       }
       if (scenario.steps?.length) {
         lines.push("- Steps:");
         for (const step of scenario.steps) {
           lines.push(`  - [${step.status === "pass" ? "x" : " "}] ${step.name}`);
           if (step.details) {
-            lines.push(`    - ${step.details}`);
+            pushDetailsBlock(lines, "Details", step.details, "    ");
           }
         }
       }
diff --git a/extensions/qa-lab/src/scenario-catalog.test.ts b/extensions/qa-lab/src/scenario-catalog.test.ts
index d7d79ce7cd9..cce1f0acb69 100644
--- a/extensions/qa-lab/src/scenario-catalog.test.ts
+++ b/extensions/qa-lab/src/scenario-catalog.test.ts
@@ -18,6 +18,7 @@ describe("qa scenario catalog", () => {
     expect(pack.scenarios.some((scenario) => scenario.id === "image-generation-roundtrip")).toBe(
       true,
     );
+    expect(pack.scenarios.some((scenario) => scenario.id === "character-vibes-gollum")).toBe(true);
     expect(pack.scenarios.every((scenario) => scenario.execution?.kind === "flow")).toBe(true);
     expect(pack.scenarios.some((scenario) => scenario.execution.flow?.steps.length)).toBe(true);
   });
diff --git a/extensions/qa-lab/src/suite.ts b/extensions/qa-lab/src/suite.ts
index 0d534ca0add..e4e85855068 100644
--- a/extensions/qa-lab/src/suite.ts
+++ b/extensions/qa-lab/src/suite.ts
@@ -200,6 +200,37 @@ function recentOutboundSummary(state: QaBusState, limit = 5) {
     .join(" | ");
 }
 
+function formatConversationTranscript(
+  state: QaBusState,
+  params: {
+    conversationId: string;
+    threadId?: string;
+    limit?: number;
+  },
+) {
+  const messages = state
+    .getSnapshot()
+    .messages.filter(
+      (message) =>
+        message.conversation.id === params.conversationId &&
+        (params.threadId ? message.threadId === params.threadId : true),
+    );
+  const selected = params.limit ? messages.slice(-params.limit) : messages;
+  return selected
+    .map((message) => {
+      const direction = message.direction === "inbound" ? "user" : "assistant";
+      const speaker = message.senderName?.trim() || message.senderId;
+      const attachmentSummary =
+        message.attachments && message.attachments.length > 0
+          ? ` [attachments: ${message.attachments
+              .map((attachment) => `${attachment.kind}:${attachment.fileName ?? attachment.id}`)
+              .join(", ")}]`
+          : "";
+      return `${direction.toUpperCase()} ${speaker}: ${message.text}${attachmentSummary}`;
+    })
+    .join("\n\n");
+}
+
 async function runScenario(name: string, steps: QaSuiteStep[]): Promise<QaSuiteScenarioResult> {
   const stepResults: QaReportCheck[] = [];
   for (const step of steps) {
@@ -932,6 +963,7 @@ type QaScenarioFlowApi = {
   waitForOutboundMessage: typeof waitForOutboundMessage;
   waitForNoOutbound: typeof waitForNoOutbound;
   recentOutboundSummary: typeof recentOutboundSummary;
+  formatConversationTranscript: typeof formatConversationTranscript;
   fetchJson: typeof fetchJson;
   waitForGatewayHealthy: typeof waitForGatewayHealthy;
   waitForQaChannelReady: typeof waitForQaChannelReady;
@@ -998,6 +1030,7 @@ function createScenarioFlowApi(
     waitForOutboundMessage,
     waitForNoOutbound,
     recentOutboundSummary,
+    formatConversationTranscript,
     fetchJson,
     waitForGatewayHealthy,
     waitForQaChannelReady,
diff --git a/qa/scenarios/character-vibes-gollum.md b/qa/scenarios/character-vibes-gollum.md
new file mode 100644
index 00000000000..78138cca7be
--- /dev/null
+++ b/qa/scenarios/character-vibes-gollum.md
@@ -0,0 +1,81 @@
+# Character vibes: Gollum improv
+
+```yaml qa-scenario
+id: character-vibes-gollum
+title: "Character vibes: Gollum improv"
+surface: character
+objective: Capture a playful multi-turn character conversation so another model can later grade naturalness, vibe, and funniness from the raw transcript.
+successCriteria:
+  - Agent responds on every turn of the improv.
+  - Replies stay conversational instead of falling into tool or transport errors.
+  - The report preserves the full transcript for later grading.
+docsRefs:
+  - docs/help/testing.md
+  - docs/channels/qa-channel.md
+codeRefs:
+  - extensions/qa-lab/src/report.ts
+  - extensions/qa-lab/src/bus-state.ts
+  - extensions/qa-lab/src/scenario-flow-runner.ts
+execution:
+  kind: flow
+  summary: Capture a raw character-performance transcript for later quality grading.
+  config:
+    conversationId: alice
+    senderName: Alice
+    turns:
+      - "Fun character check. For the next four replies, you are Gollum skulking through a QA lab at midnight. Stay playful, weird, vivid, and cooperative. First: what shiny thing caught your eye in this repo, precious?"
+      - "The testers whisper that `dist/index.js` is the Precious Build Stamp. How do you react?"
+      - "A build just turned green, but the vibes are cursed. Give a naturally funny reaction in character."
+      - "One last line for the QA goblins before the next run. Make it oddly sweet and a little unhinged."
+    forbiddenNeedles:
+      - acp backend
+      - acpx
+      - not configured
+      - internal error
+      - tool failed
+```
+
+```yaml qa-flow
+steps:
+  - name: completes the full Gollum improv and records the transcript
+    actions:
+      - call: resetBus
+      - forEach:
+          items:
+            ref: config.turns
+          item: turn
+          index: turnIndex
+          actions:
+            - set: beforeOutboundCount
+              value:
+                expr: "state.getSnapshot().messages.filter((message) => message.direction === 'outbound' && message.conversation.id === config.conversationId).length"
+            - call: state.addInboundMessage
+              args:
+                - conversation:
+                    id:
+                      ref: config.conversationId
+                    kind: direct
+                  senderId: alice
+                  senderName:
+                    ref: config.senderName
+                  text:
+                    ref: turn
+            - call: waitForOutboundMessage
+              saveAs: latestOutbound
+              args:
+                - ref: state
+                - lambda:
+                    params: [candidate]
+                    expr: "candidate.conversation.id === config.conversationId && candidate.text.trim().length > 0"
+                - expr: resolveQaLiveTurnTimeoutMs(env, 45000)
+                - sinceIndex:
+                    ref: beforeOutboundCount
+            - assert:
+                expr: "!config.forbiddenNeedles.some((needle) => normalizeLowercaseStringOrEmpty(latestOutbound.text).includes(needle))"
+                message:
+                  expr: "`gollum improv turn ${String(turnIndex)} hit fallback/error text: ${latestOutbound.text}`"
+      - assert:
+          expr: "state.getSnapshot().messages.filter((message) => message.direction === 'outbound' && message.conversation.id === config.conversationId).length === config.turns.length"
+          message: missing one or more Gollum replies
+    detailsExpr: "formatConversationTranscript(state, { conversationId: config.conversationId })"
+```