抓包对比工具补一批一次性脚本：拆预设、对请求、跑 A/B 与拒答抽样。

这些脚本都是我对着酒馆真实请求手工核对用的，留在仓库里方便下次重跑；跑出来的本地数据目录含接口 key，已经写进忽略规则。

tools/st-request-diff/analyze-tool-desc.mjs

@@ -0,0 +1,40 @@
+// 拆解抓包里的 tools[].function.description：它到底装了什么
+// 用法: node analyze-tool-desc.mjs <capture.json> [preset.json]
+import { readFileSync } from "node:fs";
+const outer = JSON.parse(readFileSync(process.argv[2], "utf8"));
+const body = JSON.parse(outer.body);
+const tools = body.tools || [];
+console.log("tools 数量: " + tools.length + "，tool_choice=" + JSON.stringify(body.tool_choice));
+tools.forEach((t, i) => {
+  const fn = t.function || t;
+  const d = String(fn.description || "");
+  console.log("\n=== tools[" + i + "] name=" + fn.name + "  description=" + d.length + " 字 ===");
+  console.log("parameters: " + JSON.stringify(fn.parameters || {}).slice(0, 400));
+  const heads = d.split("\n").filter((l) => /^(#{1,3}\s|===|---|\[[A-Za-z_]+|<[A-Za-z_]+>)/.test(l.trim())).slice(0, 60);
+  console.log("\n-- 段落标题/标记（前 60 行）--");
+  console.log(heads.join("\n"));
+  console.log("\n-- 开头 700 字 --");
+  console.log(d.slice(0, 700));
+  console.log("\n-- 中段 700 字（45% 处）--");
+  console.log(d.slice(Math.floor(d.length * 0.45), Math.floor(d.length * 0.45) + 700));
+  console.log("\n-- 结尾 500 字 --");
+  console.log(d.slice(-500));
+});
+
+// 如果给了预设，逐条看哪些 block 被塞进 description
+if (process.argv[3]) {
+  const preset = JSON.parse(readFileSync(process.argv[3], "utf8"));
+  const d = tools.map((t) => String((t.function || t).description || "")).join("\n");
+  const norm = (s) => String(s || "").replace(/\s+/g, " ").trim();
+  const pool = norm(d);
+  console.log("\n=== 预设条目 → 是否进了 tool description ===");
+  let sum = 0;
+  for (const p of preset.prompts || []) {
+    const c = norm(p.content);
+    if (c.length < 60) continue;
+    const hit = pool.includes(c.slice(0, 120)) || pool.includes(c.slice(-120));
+    if (hit) sum += String(p.content).length;
+    console.log((hit ? "✅" : "  ") + " " + String(p.name || p.identifier).slice(0, 34) + "  (" + String(p.content).length + " 字)");
+  }
+  console.log("\n被吞进 description 的预设正文字数合计 ≈ " + sum);
+}