diff --git a/__tests__/result-document.test.ts b/__tests__/result-document.test.ts
index ebdfa80..ade98ac 100644
--- a/__tests__/result-document.test.ts
+++ b/__tests__/result-document.test.ts
@@ -46,9 +46,9 @@ describe("renderQueryDocument (llm-zh)", () => {
     const text = textOf(renderQueryDocument(doc(), { audience: "llm-zh" }));
 
     expect(text).toContain("## 数据库查询结果");
-    expect(text).toContain("**数据库**：shop");
-    expect(text).toContain("**SQL**：SELECT * FROM users");
-    expect(text).toContain("**行数**：2（0.010s）");
+    expect(text).toContain("数据库：shop");
+    expect(text).toContain("SQL：SELECT * FROM users");
+    expect(text).toContain("行数：2（0.010s）");
     expect(text).toContain("| id | name |");
     expect(text).toContain("alice");
   });
@@ -57,8 +57,8 @@ describe("renderQueryDocument (llm-zh)", () => {
     const lines = renderQueryDocument(doc({ connectionId: "main" }), { audience: "llm-zh" });
     const text = textOf(lines);
 
-    expect(text).toContain("**连接**：main");
-    expect(text.indexOf("**连接**")).toBeLessThan(text.indexOf("**数据库**"));
+    expect(text).toContain("连接：main");
+    expect(text.indexOf("连接：main")).toBeLessThan(text.indexOf("数据库："));
   });
 
   it("空结果输出（空结果）占位", () => {
diff --git a/__tests__/schema-table.test.ts b/__tests__/schema-table.test.ts
index 84bccbe..72d5b67 100644
--- a/__tests__/schema-table.test.ts
+++ b/__tests__/schema-table.test.ts
@@ -36,7 +36,7 @@ describe("formatSchemaMarkdown", () => {
     expect(out).toContain("| 列 | 类型 | Null | Key | 默认 | Extra | 注释 |");
     expect(out).toContain("| id | bigint(20) |  | PK |  | auto_increment |  |");
     expect(out).toContain("| user_id | bigint(20) | YES | FK |  |  | 下单用户 |");
-    expect(out).toContain("**索引（2）**");
+    expect(out).toContain("索引（2）");
     expect(out).toContain("- `PRIMARY` [UNIQUE]: id");
     expect(out).toContain("- `idx_user`: user_id");
   });
diff --git a/formatting/result-document.ts b/formatting/result-document.ts
index 36ab7d1..240f577 100644
--- a/formatting/result-document.ts
+++ b/formatting/result-document.ts
@@ -133,12 +133,14 @@ function relatedSummary(related: RelatedResult[]): string {
 // ====== LLM 上下文（中文 markdown，/db query 消息与 db_query 工具共用）======
 
 function renderLlm(doc: QueryResultDoc): DocLine[] {
+  // 元数据标签不加粗：`**` 在工具结果展开态（tool-result-render 的
+  // TruncatedMultiline 原文渲染）会以字面量显示在终端，且对 LLM 无信息量。
   const lines: DocLine[] = [{ text: "## 数据库查询结果" }, { text: "" }];
-  if (doc.connectionId) lines.push({ text: `**连接**：${doc.connectionId}` });
+  if (doc.connectionId) lines.push({ text: `连接：${doc.connectionId}` });
   lines.push(
-    { text: `**数据库**：${doc.database}` },
-    { text: `**SQL**：${doc.sql}` },
-    { text: `**行数**：${doc.rowCount}（${doc.elapsed}）` },
+    { text: `数据库：${doc.database}` },
+    { text: `SQL：${doc.sql}` },
+    { text: `行数：${doc.rowCount}（${doc.elapsed}）` },
     { text: "" },
   );
 
diff --git a/formatting/schema-table.ts b/formatting/schema-table.ts
index 1d5c8d5..a910fa1 100644
--- a/formatting/schema-table.ts
+++ b/formatting/schema-table.ts
@@ -40,7 +40,8 @@ export function formatSchemaMarkdown(
     );
   }
 
-  lines.push("", `**索引（${indexes.length}）**`, "");
+  // 索引标题不加粗：`**` 在 db_tables 工具结果展开态会以字面量显示在终端。
+  lines.push("", `索引（${indexes.length}）`, "");
   for (const idx of indexes) {
     lines.push(`- \`${idx.name}\`${idx.unique ? " [UNIQUE]" : ""}: ${idx.columns.join(", ")}`);
   }