fix(line): strip internal tool-trace banners from outbound text

Pick-cat · Pick-cat · commit cdf0ee3b0f7a · 2026-07-07T22:09:27.000+08:00
diff --git a/extensions/line/src/outbound-tool-trace-sanitize.test.ts b/extensions/line/src/outbound-tool-trace-sanitize.test.ts
@@ -0,0 +1,19 @@
+// LINE outbound must strip assistant internal tool-trace scaffolding, matching
+// the sibling channel fixes tracked under #90684 (Slack / Signal / Matrix /
+// Feishu / Mattermost / Telegram / Google Chat / QQBot / IRC / SMS).
+import { describe, expect, it } from "vitest";
+import { linePlugin } from "./channel.js";
+
+describe("line outbound sanitizeText", () => {
+  it("strips internal tool-trace banners before outbound delivery", () => {
+    const text = "Done.\n⚠️ 🛠️ `search repos (agent)` failed";
+
+    expect(linePlugin.outbound?.sanitizeText?.({ text, payload: { text } })).toBe("Done.");
+  });
+
+  it("preserves ordinary assistant prose while sanitizing", () => {
+    const text = "The pipeline has 3 open deals.";
+
+    expect(linePlugin.outbound?.sanitizeText?.({ text, payload: { text } })).toBe(text);
+  });
+});
diff --git a/extensions/line/src/outbound.ts b/extensions/line/src/outbound.ts
@@ -10,6 +10,7 @@ import {
 } from "openclaw/plugin-sdk/channel-send-result";
 import { createLazyRuntimeModule } from "openclaw/plugin-sdk/lazy-runtime";
 import { resolveOutboundMediaUrls } from "openclaw/plugin-sdk/reply-payload";
+import { sanitizeAssistantVisibleText } from "openclaw/plugin-sdk/text-chunking";
 import { truncateUtf16Safe } from "openclaw/plugin-sdk/text-utility-runtime";
 import type { ChannelPlugin, ResolvedLineAccount } from "./channel-api.js";
 import { resolveLineOutboundMedia, type LineOutboundMediaResolved } from "./outbound-media.js";
@@ -82,6 +83,7 @@ export const lineOutboundAdapter: NonNullable<ChannelPlugin<ResolvedLineAccount>
   deliveryMode: "direct",
   chunker: (text, limit) => getLineRuntime().channel.text.chunkMarkdownText(text, limit),
   textChunkLimit: 5000,
+  sanitizeText: ({ text }) => sanitizeAssistantVisibleText(text),
   sendPayload: async ({ to, payload, accountId, cfg, onDeliveryResult }) => {
     const runtime = getLineRuntime();
     const outboundRuntime = await loadLineOutboundRuntime();
