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。
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// A/B：同一场景、同一模型、同参数，把多个预设各跑 N 轮，输出对比报告（走本仓库直聊的真实调用）。
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// 用法: node ab.mjs --preset <a.json> --preset <b.json> [--runs 2] [--profile deepseek-flash] [--port 23388]
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import { spawn } from "node:child_process";
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import { mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs";
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import os from "node:os";
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import path from "node:path";
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import { fileURLToPath } from "node:url";
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import { waitFor } from "./cdp.mjs";
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const HERE = path.dirname(fileURLToPath(import.meta.url));
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const REPO = path.resolve(HERE, "../..");
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const OUT = path.join(HERE, "captures");
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function readArgs(argv) {
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const out = { presets: [], runs: 2, profile: "deepseek-flash", port: 23388, dataRoot: path.join(HERE, ".ab-data"), timeoutMs: 240000 };
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for (let i = 0; i < argv.length; i++) {
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const k = argv[i], v = argv[i + 1];
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if (k === "--preset") { out.presets.push(path.resolve(String(v))); i++; }
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else if (k === "--runs") { out.runs = Number(v); i++; }
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else if (k === "--profile") { out.profile = String(v); i++; }
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else if (k === "--port") { out.port = Number(v); i++; }
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else if (k === "--timeout") { out.timeoutMs = Number(v) * 1000; i++; }
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}
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if (out.presets.length < 2) throw new Error("至少要两个 --preset");
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return out;
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}
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// 同一场景，两边共用
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const SCENE = {
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charName: "阿箬",
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charDescription: "三十上下的客栈老板娘，眉眼有倦色，说话慢，手上总在做事。",
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charPersonality: "沉静、寡言、看人极准，不轻易信人。",
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scenario: "雨夜，城郊旧客栈。他是第一次独自押镖的年轻镖师，也是今夜唯一的客人。",
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exampleDialogue: "",
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text: "把刀搁在桌上，说：「上一壶热的。」",
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};
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async function postJson(url, body, timeoutMs) {
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const ctrl = new AbortController();
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const timer = setTimeout(() => ctrl.abort(), timeoutMs);
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try {
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const res = await fetch(url, { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(body), signal: ctrl.signal });
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const text = await res.text();
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let data = null;
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try { data = JSON.parse(text); } catch (e) { data = { raw: text.slice(0, 1200) }; }
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if (!res.ok) throw new Error("HTTP " + res.status + " " + JSON.stringify(data).slice(0, 600));
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return data;
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} finally {
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clearTimeout(timer);
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}
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}
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function pickProfile(name) {
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const file = path.join(os.homedir(), ".writing-agent", "profiles.json");
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const data = JSON.parse(readFileSync(file, "utf8"));
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const hit = (data.profiles || []).find((p) => p.name === name) || (data.profiles || []).find((p) => p.apiKey);
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if (!hit) throw new Error("找不到可用 profile: " + name);
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return hit;
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}
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async function main() {
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const args = readArgs(process.argv.slice(2));
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mkdirSync(OUT, { recursive: true });
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const profile = pickProfile(args.profile);
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const dataRoot = args.dataRoot;
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rmSync(dataRoot, { recursive: true, force: true });
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mkdirSync(dataRoot, { recursive: true });
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const now = new Date().toISOString();
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writeFileSync(path.join(dataRoot, "profiles.json"), JSON.stringify({
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version: 1,
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profiles: [{ id: "ab", name: "ab", baseUrl: profile.baseUrl, apiKey: profile.apiKey, model: profile.model, createdAt: now, updatedAt: now }],
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groups: [],
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}, null, 2), "utf8");
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writeFileSync(path.join(dataRoot, "settings.json"), JSON.stringify({
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version: 1, activeProfileId: "ab", activePresetId: null, messageSquash: "follow-preset", presetToolPolicy: "adapt",
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}, null, 2), "utf8");
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const env = { ...process.env, PORT: String(args.port), WRITING_AGENT_DATA_DIR: dataRoot };
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const server = spawn(process.execPath, [path.join(REPO, "node_modules/tsx/dist/cli.mjs"), path.join(REPO, "src/server/web-server.ts")], { cwd: REPO, env, stdio: ["ignore", "pipe", "pipe"] });
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const logs = [];
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server.stdout.on("data", (d) => logs.push(String(d)));
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server.stderr.on("data", (d) => logs.push(String(d)));
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const base = "http://127.0.0.1:" + args.port;
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const rows = [];
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try {
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await waitFor(async () => (await fetch(base + "/api/health").catch(() => null)) !== null, { timeoutMs: 60000, label: "服务起来" });
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console.log("[ab] 模型: " + profile.model + " (" + profile.baseUrl + ") 跑 " + args.runs + " 轮/预设");
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for (const file of args.presets) {
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const name = path.basename(file, ".json");
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const raw = JSON.parse(readFileSync(file, "utf8"));
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const imported = await postJson(base + "/api/presets/import", { raw, name, activate: true }, 60000);
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const presetId = imported.preset.id;
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const promptChars = (raw.prompts || []).reduce((n, p) => n + String(p.content || "").length, 0);
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console.log("[ab] " + name + ": 已导入 id=" + presetId + "，预设正文 " + promptChars + " 字");
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for (let i = 1; i <= args.runs; i++) {
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const t0 = Date.now();
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let reply = "", err = "", usage = null;
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try {
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const result = await postJson(base + "/api/direct-chat/ephemeral/complete", {
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text: SCENE.text, presetId, complete: true, turns: [],
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windows: [{ id: "w1", profileId: "ab" }],
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systemPrompt: "", loreBefore: "", seedHistory: "", loreAfter: "", postTurn: "",
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charName: SCENE.charName, exampleDialogue: SCENE.exampleDialogue,
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charDescription: SCENE.charDescription, charPersonality: SCENE.charPersonality,
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scenario: SCENE.scenario,
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}, args.timeoutMs);
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const first = result.multi && result.multi.results && result.multi.results[0];
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if (!first) throw new Error("没有 results: " + JSON.stringify(result).slice(0, 400));
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if (first.error) { err = String(first.error); } else {
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reply = String(first.reply || "");
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usage = first.usage || result.usage || null;
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}
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} catch (e) {
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err = e.message;
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}
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const ms = Date.now() - t0;
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rows.push({ preset: name, run: i, ms, chars: reply.length, reply, err, usage, promptChars });
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console.log("[ab] " + name + " 第" + i + "轮: " + ms + "ms " + reply.length + " 字" + (err ? " 失败: " + err.slice(0, 120) : ""));
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}
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}
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} finally {
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try { server.kill(); } catch (e) {}
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}
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// 从 stats 里补 token
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let stats = [];
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try {
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const day = new Date().toISOString().slice(0, 10);
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const file = path.join(dataRoot, "stats", day + ".jsonl");
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stats = readFileSync(file, "utf8").trim().split("\n").filter(Boolean).map((l) => JSON.parse(l));
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} catch (e) {}
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const lines = ["# A/B 报告 " + new Date().toLocaleString("zh-CN"), ""];
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lines.push("模型: `" + profile.model + "` ｜ 预设正文合计字数见下表 ｜ 每预设 " + args.runs + " 轮");
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lines.push("");
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lines.push("场景: " + SCENE.scenario);
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lines.push("角色: " + SCENE.charName + " — " + SCENE.charDescription);
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lines.push("用户输入: " + SCENE.text);
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lines.push("");
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lines.push("| 预设 | 预设正文字数 | 轮次 | 耗时(ms) | 输出字数 | prompt tokens | completion tokens | 结果 |");
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lines.push("| --- | --- | --- | --- | --- | --- | --- | --- |");
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rows.forEach((r, idx) => {
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const s = stats[idx] || {};
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lines.push("| " + r.preset + " | " + r.promptChars + " | " + r.run + " | " + r.ms + " | " + r.chars + " | " + (s.promptTokens ?? "—") + " | " + (s.completionTokens ?? "—") + " | " + (r.err ? "❌ " + r.err.slice(0, 60) : "✅") + " |");
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});
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for (const name of new Set(rows.map((r) => r.preset))) {
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lines.push("");
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lines.push("## " + name);
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for (const r of rows.filter((x) => x.preset === name)) {
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lines.push("");
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lines.push("### 第 " + r.run + " 轮（" + r.ms + "ms，" + r.chars + " 字）");
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lines.push("");
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lines.push(r.err ? "失败: " + r.err : "```\n" + r.reply + "\n```");
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}
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}
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const report = path.join(OUT, "ab-" + new Date().toISOString().replace(/[:.]/g, "-") + ".md");
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writeFileSync(report, lines.join("\n") + "\n", "utf8");
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console.log("\n" + lines.slice(5, 12 + rows.length).join("\n"));
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console.log("\n[ab] 报告: " + report);
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if (logs.some((l) => l.includes("失败"))) console.log("[ab] 服务端日志尾部:\n" + logs.join("").slice(-1500));
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}
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await main();
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