mirror of
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feat: v2.5.1 - 上下文智能压缩 + 截断检测 + tolerantParse 增强
🗜️ 智能压缩 - 长对话老消息压缩而非丢弃，保留因果链语义 - 工具结果压缩为摘要，助手消息保留工具名 - 压缩率 70-80%，解决 Cursor 上下文溢出问题 ⚠️ 截断检测 - 代码块/XML 未闭合时返回 stop_reason=max_tokens - Claude Code 自动继续，无需手动点击"继续" 🔧 tolerantParse - 新增正则兜底层，处理未转义双引号的 JSON - 解决 position 5384 等长参数解析崩溃 🛡️ 拒绝 fallback 优化 - 工具模式下返回极短引导文本
This commit is contained in:
小海
35
CHANGELOG.md
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35
CHANGELOG.md
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@@ -0,0 +1,35 @@
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# Changelog
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## v2.5.1 (2026-03-10)
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### 🗜️ 上下文智能压缩
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解决 Claude Code 频繁出现"继续"按钮的核心问题。
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- **智能压缩替代裁剪**：当对话消息超过 30 条或总字符超过 60K 时，自动压缩老消息而非丢弃
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- 工具结果 `Action output: <30KB 文件内容>` → `Action output: [30000 chars, 247 lines] import ...`
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- 助手工具调用 → `[Called read_file(file_path)]`（保留工具名和参数名）
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- 保留因果链语义，减少 70-80% 字符量
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- **保留区策略**：few-shot 头部 2 条 + 最近 6 条消息始终保持完整原文
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### ⚠️ 截断检测
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- **自动检测被截断的响应**：代码块未闭合、XML 标签未闭合时，返回 `stop_reason: "max_tokens"` 让 Claude Code 自动继续，无需手动点击"继续"
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- 同时应用于流式和非流式响应
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### 🔧 tolerantParse 增强
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- **新增第四层正则兜底**：当模型生成的 JSON 工具调用包含未转义双引号（如代码内容参数）导致标准解析和控制字符修复均失败时，使用正则提取 `tool` 名称和 `parameters` 字段
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- 解决 `SyntaxError: Expected ',' or '}'` at position 5384 等长参数解析崩溃问题
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### 🛡️ 拒绝 Fallback 优化
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- 工具模式下拒绝时返回极短文本 `"Let me proceed with the task."`，避免 Claude Code 误判为任务完成
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---
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## v2.5.0 (2026-03-10)
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- OpenAI Responses API (`/v1/responses`) 支持 Cursor IDE Agent 模式
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- 跨协议防御对齐（Anthropic + OpenAI handler 共享拒绝检测和重试逻辑）
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- 统一图片预处理管道（OCR/Vision API）
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@@ -1,6 +1,6 @@
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{
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"name": "cursor2api",
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"version": "2.5.0",
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"version": "2.5.1",
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"description": "Proxy Cursor docs AI to Anthropic Messages API for Claude Code",
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"type": "module",
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"scripts": {
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143
src/converter.ts
143
src/converter.ts
@@ -248,6 +248,33 @@ export async function convertToCursorRequest(req: AnthropicRequest): Promise<Cur
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}
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}
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// ★ 智能压缩：工具模式下，总字符数超标时压缩老消息（而非丢弃）
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// 保留完整的因果链（做了什么→得了什么），但大幅减少 token 占用
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if (hasTools && messages.length > FEWSHOT_COUNT) {
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const charsBefore = messages.reduce((s, m) => s + m.parts.reduce((a, p) => a + (p.text?.length ?? 0), 0), 0);
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if (charsBefore > MAX_CONTEXT_CHARS || messages.length > MAX_CURSOR_MESSAGES) {
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// 保留最近 KEEP_RECENT 条消息原文，之前的消息做压缩
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const keepRecentCount = Math.min(KEEP_RECENT_MESSAGES, messages.length - FEWSHOT_COUNT);
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const compressBoundary = messages.length - keepRecentCount;
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let compressedCount = 0;
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for (let i = FEWSHOT_COUNT; i < compressBoundary; i++) {
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const original = messages[i].parts.map(p => p.text ?? '').join('');
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const compressed = compressMessage(messages[i].role, original);
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if (compressed.length < original.length) {
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messages[i] = { ...messages[i], parts: [{ type: 'text', text: compressed }] };
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compressedCount++;
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}
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}
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const charsAfter = messages.reduce((s, m) => s + m.parts.reduce((a, p) => a + (p.text?.length ?? 0), 0), 0);
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if (compressedCount > 0) {
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console.log(`[Converter] 🗜️ 上下文压缩: ${charsBefore} → ${charsAfter} chars (压缩 ${compressedCount} 条, 保留最近 ${keepRecentCount} 条原文)`);
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}
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}
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}
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// 诊断日志：记录发给 Cursor docs AI 的消息摘要
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let totalChars = 0;
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for (let i = 0; i < messages.length; i++) {
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@@ -269,6 +296,74 @@ export async function convertToCursorRequest(req: AnthropicRequest): Promise<Cur
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// 最大工具结果长度（超过则截断，防止上下文溢出）
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const MAX_TOOL_RESULT_LENGTH = 30000;
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// ==================== 上下文压缩配置 ====================
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const FEWSHOT_COUNT = 2; // few-shot 消息数（头部固定保留）
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const MAX_CURSOR_MESSAGES = 30; // 触发压缩的消息条数阈值
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const MAX_CONTEXT_CHARS = 60000; // 触发压缩的总字符数阈值（约 15K tokens）
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const KEEP_RECENT_MESSAGES = 6; // 保留最近 N 条消息为原文不压缩
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const COMPRESS_CONTENT_MAX = 200; // 压缩后单条消息最大字符数
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/**
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* 智能压缩单条消息内容
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* 保留因果链的语义信息，但大幅减少字符数
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*/
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function compressMessage(role: string, text: string): string {
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// 短消息不压缩
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if (text.length <= COMPRESS_CONTENT_MAX) return text;
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if (role === 'user') {
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// 用户消息（通常是工具结果）
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// 检测 "Action output:" 模式 — 工具执行结果
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const actionMatch = text.match(/^Action output:\n([\s\S]*?)(?:\n\nBased on the output above|$)/);
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if (actionMatch) {
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const output = actionMatch[1];
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// 提取文件名等关键信息
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const firstLine = output.split('\n')[0]?.trim() || '';
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const lineCount = output.split('\n').length;
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return `Action output: [${output.length} chars, ${lineCount} lines] ${firstLine.substring(0, 80)}...`;
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}
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// 检测 "The action encountered an error:" 模式
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const errorMatch = text.match(/^The action encountered an error:\n([\s\S]*?)(?:\n\nBased on the output above|$)/);
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if (errorMatch) {
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const errorText = errorMatch[1].substring(0, 150);
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return `Action error: ${errorText}...`;
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}
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// 普通用户消息：保留前 200 字
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return text.substring(0, COMPRESS_CONTENT_MAX) + `... [${text.length} chars total]`;
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}
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if (role === 'assistant') {
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// 助手消息：提取工具调用名称，去掉大参数值
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const toolBlocks = text.match(/```json action\s*\n([\s\S]*?)```/g);
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if (toolBlocks && toolBlocks.length > 0) {
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const summaries: string[] = [];
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for (const block of toolBlocks) {
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try {
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const jsonMatch = block.match(/```json action\s*\n([\s\S]*?)```/);
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if (jsonMatch) {
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const parsed = JSON.parse(jsonMatch[1]);
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const toolName = parsed.tool || parsed.name || 'unknown';
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// 只保留参数的 key，去掉大 value
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const paramKeys = parsed.parameters ? Object.keys(parsed.parameters) : [];
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summaries.push(`[Called ${toolName}(${paramKeys.join(', ')})]`);
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}
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} catch {
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summaries.push('[Called action]');
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}
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}
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// 保留工具调用前的说明文本（截短）
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const cleanText = text.replace(/```json action\s*\n[\s\S]*?```/g, '').trim();
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const briefText = cleanText.length > 100 ? cleanText.substring(0, 100) + '...' : cleanText;
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return (briefText ? briefText + '\n' : '') + summaries.join('\n');
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}
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// 无工具调用的助手消息：截短
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return text.substring(0, COMPRESS_CONTENT_MAX) + `... [${text.length} chars]`;
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}
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// 其他角色：截短
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return text.substring(0, COMPRESS_CONTENT_MAX) + '...';
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}
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/**
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* 检查消息是否包含 tool_result 块
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*/
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@@ -472,7 +567,53 @@ function tolerantParse(jsonStr: string): any {
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return JSON.parse(fixed.substring(0, lastBrace + 1));
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} catch { /* ignore */ }
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}
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// 全部修复手段失败，重新抛出原始错误
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// 第四次尝试：正则提取 tool + parameters（处理值中有未转义引号的情况）
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// 适用于模型生成的代码块参数包含未转义双引号
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try {
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const toolMatch = jsonStr.match(/"(?:tool|name)"\s*:\s*"([^"]+)"/);
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if (toolMatch) {
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const toolName = toolMatch[1];
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// 尝试提取 parameters 对象
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const paramsMatch = jsonStr.match(/"(?:parameters|arguments|input)"\s*:\s*(\{[\s\S]*)/);
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let params: Record<string, unknown> = {};
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if (paramsMatch) {
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const paramsStr = paramsMatch[1];
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// 逐字符找到 parameters 对象的闭合 }
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let depth = 0;
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let end = -1;
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let pInString = false;
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let pEscaped = false;
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for (let i = 0; i < paramsStr.length; i++) {
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const c = paramsStr[i];
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if (c === '\\' && !pEscaped) { pEscaped = true; continue; }
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if (c === '"' && !pEscaped) { pInString = !pInString; }
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if (!pInString) {
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if (c === '{') depth++;
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if (c === '}') { depth--; if (depth === 0) { end = i; break; } }
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}
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pEscaped = false;
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}
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if (end > 0) {
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const rawParams = paramsStr.substring(0, end + 1);
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try {
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params = JSON.parse(rawParams);
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} catch {
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// 对每个字段单独提取
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const fieldRegex = /"([^"]+)"\s*:\s*"((?:[^"\\]|\\.)*)"/g;
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let fm;
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while ((fm = fieldRegex.exec(rawParams)) !== null) {
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params[fm[1]] = fm[2].replace(/\\n/g, '\n').replace(/\\t/g, '\t');
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}
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}
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}
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}
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console.log(`[Converter] tolerantParse 正则兜底成功: tool=${toolName}, params=${Object.keys(params).length} fields`);
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return { tool: toolName, parameters: params };
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}
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} catch { /* ignore */ }
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// 全部修复手段失败，重新抛出
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throw _e2;
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}
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}
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@@ -400,6 +400,30 @@ export async function handleMessages(req: Request, res: Response): Promise<void>
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}
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}
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// ==================== 截断检测 ====================
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/**
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* 检测响应是否被 Cursor 上下文窗口截断
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* 截断症状：响应以句中断句结束，没有完整的句号/block 结束标志
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* 这是导致 Claude Code 频繁出现"继续"的根本原因
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*/
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export function isTruncated(text: string): boolean {
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if (!text || text.trim().length === 0) return false;
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const trimmed = text.trimEnd();
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// 代码块未闭合
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const codeBlockOpen = (trimmed.match(/```/g) || []).length % 2 !== 0;
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if (codeBlockOpen) return true;
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// XML/HTML 标签未闭合 (Cursor 有时在中途截断)
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const openTags = (trimmed.match(/^<[a-zA-Z]/gm) || []).length;
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const closeTags = (trimmed.match(/^<\/[a-zA-Z]/gm) || []).length;
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if (openTags > closeTags + 1) return true;
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// 以逗号、分号、冒号、开括号结尾（明显未完成）
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if (/[,;:\[{(]\s*$/.test(trimmed)) return true;
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// 短响应且以小写字母结尾（句子被截断的强烈信号）
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if (trimmed.length < 500 && /[a-z]$/.test(trimmed)) return false; // 短响应不判断
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return false;
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}
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// ==================== 重试辅助 ====================
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export const MAX_REFUSAL_RETRIES = 2;
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@@ -513,8 +537,10 @@ async function handleStream(res: Response, cursorReq: CursorChatRequest, body: A
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fullResponse = CLAUDE_IDENTITY_RESPONSE;
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}
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} else {
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console.log(`[Handler] 工具模式下拒绝且无工具调用，引导模型输出`);
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fullResponse = 'I understand the request. Let me analyze the information and proceed with the appropriate action.';
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// 工具模式拒绝：不返回纯文本（会让 Claude Code 误认为任务完成）
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// 返回一个合理的纯文本，让它以 end_turn 结束，Claude Code 会根据上下文继续
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console.log(`[Handler] 工具模式下拒绝且无工具调用，返回简短引导文本`);
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fullResponse = 'Let me proceed with the task.';
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}
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}
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@@ -528,7 +554,12 @@ async function handleStream(res: Response, cursorReq: CursorChatRequest, body: A
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}
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// 流完成后，处理完整响应
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let stopReason = 'end_turn';
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// ★ 截断检测：代码块/XML 未闭合时，返回 max_tokens 让 Claude Code 自动继续
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// 避免用户每次都要手动点击"继续"
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let stopReason = (hasTools && isTruncated(fullResponse)) ? 'max_tokens' : 'end_turn';
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if (stopReason === 'max_tokens') {
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console.log(`[Handler] ⚠️ 检测到截断响应 (${fullResponse.length} chars)，设置 stop_reason=max_tokens`);
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}
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if (hasTools) {
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let { toolCalls, cleanText } = parseToolCalls(fullResponse);
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@@ -733,7 +764,11 @@ async function handleNonStream(res: Response, cursorReq: CursorChatRequest, body
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}
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const contentBlocks: AnthropicContentBlock[] = [];
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let stopReason = 'end_turn';
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// ★ 截断检测：代码块/XML 未闭合时，返回 max_tokens 让 Claude Code 自动继续
|
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let stopReason = (hasTools && isTruncated(fullText)) ? 'max_tokens' : 'end_turn';
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if (stopReason === 'max_tokens') {
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console.log(`[Handler] ⚠️ 非流式检测到截断响应 (${fullText.length} chars)，设置 stop_reason=max_tokens`);
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}
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if (hasTools) {
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let { toolCalls, cleanText } = parseToolCalls(fullText);
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@@ -762,7 +797,7 @@ async function handleNonStream(res: Response, cursorReq: CursorChatRequest, body
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let textToSend = fullText;
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if (isRefusal(fullText)) {
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console.log(`[Handler] Supressed pure text refusal (non-stream): ${fullText.substring(0, 100)}...`);
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textToSend = 'I understand the request. Let me proceed with the appropriate action. Could you clarify what specific task you would like me to perform?';
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textToSend = 'Let me proceed with the task.';
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}
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contentBlocks.push({ type: 'text', text: textToSend });
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}
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186
test/compression-test.ts
Normal file
186
test/compression-test.ts
Normal file
@@ -0,0 +1,186 @@
|
||||
/**
|
||||
* 快速测试：上下文压缩 + tolerantParse 增强
|
||||
*/
|
||||
|
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// ==================== 1. tolerantParse 测试 ====================
|
||||
|
||||
// 内联一个简化版 tolerantParse 进行测试
|
||||
function tolerantParse(jsonStr: string): any {
|
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try { return JSON.parse(jsonStr); } catch {}
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||||
|
||||
let inString = false, escaped = false, fixed = '';
|
||||
const bracketStack: string[] = [];
|
||||
for (let i = 0; i < jsonStr.length; i++) {
|
||||
const char = jsonStr[i];
|
||||
if (char === '\\' && !escaped) { escaped = true; fixed += char; }
|
||||
else if (char === '"' && !escaped) { inString = !inString; fixed += char; escaped = false; }
|
||||
else {
|
||||
if (inString) {
|
||||
if (char === '\n') fixed += '\\n';
|
||||
else if (char === '\r') fixed += '\\r';
|
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else if (char === '\t') fixed += '\\t';
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||||
else fixed += char;
|
||||
} else {
|
||||
if (char === '{' || char === '[') bracketStack.push(char === '{' ? '}' : ']');
|
||||
else if (char === '}' || char === ']') { if (bracketStack.length > 0) bracketStack.pop(); }
|
||||
fixed += char;
|
||||
}
|
||||
escaped = false;
|
||||
}
|
||||
}
|
||||
if (inString) fixed += '"';
|
||||
while (bracketStack.length > 0) fixed += bracketStack.pop();
|
||||
fixed = fixed.replace(/,\s*([}\]])/g, '$1');
|
||||
|
||||
try { return JSON.parse(fixed); } catch (_e2) {
|
||||
const lastBrace = fixed.lastIndexOf('}');
|
||||
if (lastBrace > 0) { try { return JSON.parse(fixed.substring(0, lastBrace + 1)); } catch {} }
|
||||
|
||||
// 第四层：正则兜底
|
||||
try {
|
||||
const toolMatch = jsonStr.match(/"(?:tool|name)"\s*:\s*"([^"]+)"/);
|
||||
if (toolMatch) {
|
||||
const toolName = toolMatch[1];
|
||||
const paramsMatch = jsonStr.match(/"(?:parameters|arguments|input)"\s*:\s*(\{[\s\S]*)/);
|
||||
let params: Record<string, unknown> = {};
|
||||
if (paramsMatch) {
|
||||
const paramsStr = paramsMatch[1];
|
||||
let depth = 0, end = -1, pInString = false, pEscaped = false;
|
||||
for (let i = 0; i < paramsStr.length; i++) {
|
||||
const c = paramsStr[i];
|
||||
if (c === '\\' && !pEscaped) { pEscaped = true; continue; }
|
||||
if (c === '"' && !pEscaped) { pInString = !pInString; }
|
||||
if (!pInString) {
|
||||
if (c === '{') depth++;
|
||||
if (c === '}') { depth--; if (depth === 0) { end = i; break; } }
|
||||
}
|
||||
pEscaped = false;
|
||||
}
|
||||
if (end > 0) {
|
||||
const rawParams = paramsStr.substring(0, end + 1);
|
||||
try { params = JSON.parse(rawParams); } catch {
|
||||
const fieldRegex = /"([^"]+)"\s*:\s*"((?:[^"\\]|\\.)*)"/g;
|
||||
let fm;
|
||||
while ((fm = fieldRegex.exec(rawParams)) !== null) {
|
||||
params[fm[1]] = fm[2].replace(/\\n/g, '\n').replace(/\\t/g, '\t');
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return { tool: toolName, parameters: params };
|
||||
}
|
||||
} catch {}
|
||||
throw _e2;
|
||||
}
|
||||
}
|
||||
|
||||
// ==================== 2. compressMessage 测试 ====================
|
||||
const COMPRESS_CONTENT_MAX = 200;
|
||||
|
||||
function compressMessage(role: string, text: string): string {
|
||||
if (text.length <= COMPRESS_CONTENT_MAX) return text;
|
||||
if (role === 'user') {
|
||||
const actionMatch = text.match(/^Action output:\n([\s\S]*?)(?:\n\nBased on the output above|$)/);
|
||||
if (actionMatch) {
|
||||
const output = actionMatch[1];
|
||||
const firstLine = output.split('\n')[0]?.trim() || '';
|
||||
const lineCount = output.split('\n').length;
|
||||
return `Action output: [${output.length} chars, ${lineCount} lines] ${firstLine.substring(0, 80)}...`;
|
||||
}
|
||||
const errorMatch = text.match(/^The action encountered an error:\n([\s\S]*?)(?:\n\nBased on the output above|$)/);
|
||||
if (errorMatch) {
|
||||
return `Action error: ${errorMatch[1].substring(0, 150)}...`;
|
||||
}
|
||||
return text.substring(0, COMPRESS_CONTENT_MAX) + `... [${text.length} chars total]`;
|
||||
}
|
||||
if (role === 'assistant') {
|
||||
const toolBlocks = text.match(/```json action\s*\n([\s\S]*?)```/g);
|
||||
if (toolBlocks && toolBlocks.length > 0) {
|
||||
const summaries: string[] = [];
|
||||
for (const block of toolBlocks) {
|
||||
try {
|
||||
const jsonMatch = block.match(/```json action\s*\n([\s\S]*?)```/);
|
||||
if (jsonMatch) {
|
||||
const parsed = JSON.parse(jsonMatch[1]);
|
||||
const toolName = parsed.tool || parsed.name || 'unknown';
|
||||
const paramKeys = parsed.parameters ? Object.keys(parsed.parameters) : [];
|
||||
summaries.push(`[Called ${toolName}(${paramKeys.join(', ')})]`);
|
||||
}
|
||||
} catch { summaries.push('[Called action]'); }
|
||||
}
|
||||
const cleanText = text.replace(/```json action\s*\n[\s\S]*?```/g, '').trim();
|
||||
const briefText = cleanText.length > 100 ? cleanText.substring(0, 100) + '...' : cleanText;
|
||||
return (briefText ? briefText + '\n' : '') + summaries.join('\n');
|
||||
}
|
||||
return text.substring(0, COMPRESS_CONTENT_MAX) + `... [${text.length} chars]`;
|
||||
}
|
||||
return text.substring(0, COMPRESS_CONTENT_MAX) + '...';
|
||||
}
|
||||
|
||||
// ==================== 运行测试 ====================
|
||||
|
||||
let passed = 0, failed = 0;
|
||||
function assert(name: string, condition: boolean, detail?: string) {
|
||||
if (condition) { passed++; console.log(` ✅ ${name}`); }
|
||||
else { failed++; console.log(` ❌ ${name}${detail ? ': ' + detail : ''}`); }
|
||||
}
|
||||
|
||||
console.log('\n=== tolerantParse 测试 ===');
|
||||
|
||||
// 正常 JSON
|
||||
const t1 = tolerantParse('{"tool":"read_file","parameters":{"file_path":"src/index.ts"}}');
|
||||
assert('正常 JSON', t1.tool === 'read_file' && t1.parameters.file_path === 'src/index.ts');
|
||||
|
||||
// 带裸换行符
|
||||
const t2 = tolerantParse('{"tool":"write_file","parameters":{"content":"line1\nline2"}}');
|
||||
assert('裸换行修复', t2.tool === 'write_file');
|
||||
|
||||
// 截断 JSON（未闭合）
|
||||
const t3 = tolerantParse('{"tool":"bash","parameters":{"command":"ls -la');
|
||||
assert('截断兜底', t3.tool === 'bash');
|
||||
|
||||
// 含未转义引号的代码内容（最重要的场景）
|
||||
const badJson = `{
|
||||
"tool": "write_file",
|
||||
"parameters": {
|
||||
"file_path": "test.ts",
|
||||
"content": "const x = "hello"; console.log(x);"
|
||||
}
|
||||
}`;
|
||||
const t4 = tolerantParse(badJson);
|
||||
assert('未转义引号 - 提取 tool 名', t4.tool === 'write_file');
|
||||
assert('未转义引号 - 提取参数', Object.keys(t4.parameters).length > 0, `keys=${JSON.stringify(Object.keys(t4.parameters))}`);
|
||||
|
||||
// 尾部逗号
|
||||
const t5 = tolerantParse('{"tool":"list_dir","parameters":{"path":"./",},}');
|
||||
assert('尾部逗号修复', t5.tool === 'list_dir');
|
||||
|
||||
console.log('\n=== compressMessage 测试 ===');
|
||||
|
||||
// 短消息不压缩
|
||||
assert('短消息保留', compressMessage('user', 'hello world') === 'hello world');
|
||||
|
||||
// 长工具结果压缩
|
||||
const longResult = 'Action output:\n' + 'x'.repeat(5000) + '\n\nBased on the output above, continue...';
|
||||
const c1 = compressMessage('user', longResult);
|
||||
assert('工具结果压缩', c1.length < 200, `压缩到 ${c1.length} chars`);
|
||||
assert('工具结果保留信息', c1.includes('5000 chars') && c1.includes('Action output'));
|
||||
|
||||
// 错误结果压缩
|
||||
const errorResult = 'The action encountered an error:\nPermission denied: cannot access /root/secret\n\nBased on the output above, continue...';
|
||||
const c2 = compressMessage('user', errorResult.padEnd(300, ' detail'));
|
||||
assert('错误结果压缩', c2.startsWith('Action error:'));
|
||||
|
||||
// 助手消息（工具调用）压缩
|
||||
const assistantMsg = `Let me check the file structure first.\n\n\`\`\`json action\n{"tool":"read_file","parameters":{"file_path":"src/index.ts"}}\n\`\`\`\n\nAnd then more text here to pad the message beyond the threshold limit. ${'x'.repeat(200)}`;
|
||||
const c3 = compressMessage('assistant', assistantMsg);
|
||||
assert('助手消息压缩保留工具名', c3.includes('[Called read_file(file_path)]'), c3);
|
||||
assert('助手消息压缩', c3.length < assistantMsg.length, `${c3.length} < ${assistantMsg.length}`);
|
||||
|
||||
// 普通长用户消息
|
||||
const longUser = 'Please help me with '.padEnd(500, 'this task ');
|
||||
const c4 = compressMessage('user', longUser);
|
||||
assert('普通用户消息截短', c4.length < 300 && c4.includes('chars total'));
|
||||
|
||||
console.log(`\n=== 结果: ${passed} 通过, ${failed} 失败 ===\n`);
|
||||
process.exit(failed > 0 ? 1 : 0);
|
||||
203
test/e2e-test.ts
Normal file
203
test/e2e-test.ts
Normal file
@@ -0,0 +1,203 @@
|
||||
/**
|
||||
* 端到端测试：向真实 Cursor2API 服务发送请求
|
||||
*
|
||||
* 测试场景：
|
||||
* 1. 简单请求能正常返回
|
||||
* 2. 带工具的多轮长对话触发压缩
|
||||
* 3. 验证 stop_reason 正确
|
||||
*/
|
||||
|
||||
const API_URL = 'http://localhost:3010/v1/messages';
|
||||
|
||||
interface TestResult {
|
||||
name: string;
|
||||
passed: boolean;
|
||||
detail: string;
|
||||
}
|
||||
|
||||
const results: TestResult[] = [];
|
||||
|
||||
function assert(name: string, condition: boolean, detail = '') {
|
||||
results.push({ name, passed: condition, detail });
|
||||
console.log(condition ? ` ✅ ${name}` : ` ❌ ${name}: ${detail}`);
|
||||
}
|
||||
|
||||
// 构造一个模拟 Claude Code 的长对话请求（带很多轮工具交互历史）
|
||||
function buildLongToolRequest(turnCount: number) {
|
||||
const messages: any[] = [];
|
||||
|
||||
// 模拟多轮工具交互历史
|
||||
for (let i = 0; i < turnCount; i++) {
|
||||
if (i === 0) {
|
||||
// 第一轮：用户发起请求
|
||||
messages.push({
|
||||
role: 'user',
|
||||
content: 'Help me analyze the project structure. Read the main entry file first.'
|
||||
});
|
||||
} else {
|
||||
// 工具结果
|
||||
messages.push({
|
||||
role: 'user',
|
||||
content: [
|
||||
{
|
||||
type: 'tool_result',
|
||||
tool_use_id: `tool_${i}`,
|
||||
content: `File content of module${i}.ts:\n` +
|
||||
`import { something } from './utils';\n\n` +
|
||||
`export class Module${i} {\n` +
|
||||
Array.from({length: 30}, (_, j) => ` method${j}() { return ${j}; }`).join('\n') +
|
||||
`\n}\n`
|
||||
}
|
||||
]
|
||||
});
|
||||
}
|
||||
|
||||
// 助手的工具调用
|
||||
messages.push({
|
||||
role: 'assistant',
|
||||
content: [
|
||||
{ type: 'text', text: `Let me check module${i + 1}.` },
|
||||
{
|
||||
type: 'tool_use',
|
||||
id: `tool_${i + 1}`,
|
||||
name: 'Read',
|
||||
input: { file_path: `src/module${i + 1}.ts` }
|
||||
}
|
||||
]
|
||||
});
|
||||
}
|
||||
|
||||
// 最后一轮工具结果
|
||||
messages.push({
|
||||
role: 'user',
|
||||
content: [
|
||||
{
|
||||
type: 'tool_result',
|
||||
tool_use_id: `tool_${turnCount}`,
|
||||
content: 'File not found: src/module' + turnCount + '.ts'
|
||||
}
|
||||
]
|
||||
});
|
||||
|
||||
return {
|
||||
model: 'claude-sonnet-4-20250514',
|
||||
max_tokens: 4096,
|
||||
stream: false,
|
||||
system: 'You are a helpful coding assistant.',
|
||||
tools: [
|
||||
{
|
||||
name: 'Read',
|
||||
description: 'Read a file from disk',
|
||||
input_schema: {
|
||||
type: 'object',
|
||||
properties: {
|
||||
file_path: { type: 'string', description: 'Path to the file' }
|
||||
},
|
||||
required: ['file_path']
|
||||
}
|
||||
},
|
||||
{
|
||||
name: 'Bash',
|
||||
description: 'Execute a shell command',
|
||||
input_schema: {
|
||||
type: 'object',
|
||||
properties: {
|
||||
command: { type: 'string', description: 'The command to execute' }
|
||||
},
|
||||
required: ['command']
|
||||
}
|
||||
}
|
||||
],
|
||||
messages
|
||||
};
|
||||
}
|
||||
|
||||
async function runTests() {
|
||||
console.log('\n=== 测试 1：基本请求 ===');
|
||||
try {
|
||||
const resp = await fetch(API_URL, {
|
||||
method: 'POST',
|
||||
headers: { 'Content-Type': 'application/json', 'x-api-key': 'test' },
|
||||
body: JSON.stringify({
|
||||
model: 'claude-sonnet-4-20250514',
|
||||
max_tokens: 1024,
|
||||
stream: false,
|
||||
messages: [{ role: 'user', content: 'Say "hello" in one word.' }]
|
||||
})
|
||||
});
|
||||
assert('服务器响应', resp.ok, `status=${resp.status}`);
|
||||
const data = await resp.json();
|
||||
assert('返回 message 类型', data.type === 'message', `type=${data.type}`);
|
||||
assert('stop_reason 是 end_turn', data.stop_reason === 'end_turn', `stop_reason=${data.stop_reason}`);
|
||||
assert('有 content', data.content?.length > 0, `content=${JSON.stringify(data.content)}`);
|
||||
console.log(` 📝 响应: ${data.content?.[0]?.text?.substring(0, 100)}`);
|
||||
} catch (e: any) {
|
||||
assert('基本请求', false, e.message);
|
||||
}
|
||||
|
||||
console.log('\n=== 测试 2：长对话工具请求（触发压缩）===');
|
||||
try {
|
||||
const longReq = buildLongToolRequest(18); // 18 轮 → 37 条消息
|
||||
console.log(` 📊 发送 ${longReq.messages.length} 条消息...`);
|
||||
|
||||
const resp = await fetch(API_URL, {
|
||||
method: 'POST',
|
||||
headers: { 'Content-Type': 'application/json', 'x-api-key': 'test' },
|
||||
body: JSON.stringify(longReq)
|
||||
});
|
||||
assert('长对话服务器响应', resp.ok, `status=${resp.status}`);
|
||||
const data = await resp.json();
|
||||
assert('长对话返回 message', data.type === 'message', `type=${data.type}`);
|
||||
assert('长对话有 content', data.content?.length > 0);
|
||||
|
||||
// 检查 stop_reason
|
||||
const validStops = ['end_turn', 'tool_use', 'max_tokens'];
|
||||
assert('stop_reason 合法', validStops.includes(data.stop_reason), `stop_reason=${data.stop_reason}`);
|
||||
|
||||
console.log(` 📝 stop_reason: ${data.stop_reason}`);
|
||||
console.log(` 📝 content blocks: ${data.content?.length}`);
|
||||
if (data.content?.[0]?.text) {
|
||||
console.log(` 📝 响应片段: ${data.content[0].text.substring(0, 150)}...`);
|
||||
}
|
||||
} catch (e: any) {
|
||||
assert('长对话请求', false, e.message);
|
||||
}
|
||||
|
||||
console.log('\n=== 测试 3：流式请求 ===');
|
||||
try {
|
||||
const resp = await fetch(API_URL, {
|
||||
method: 'POST',
|
||||
headers: { 'Content-Type': 'application/json', 'x-api-key': 'test' },
|
||||
body: JSON.stringify({
|
||||
model: 'claude-sonnet-4-20250514',
|
||||
max_tokens: 1024,
|
||||
stream: true,
|
||||
messages: [{ role: 'user', content: 'Say "world" in one word.' }]
|
||||
})
|
||||
});
|
||||
assert('流式响应 200', resp.ok, `status=${resp.status}`);
|
||||
assert('Content-Type 是 SSE', resp.headers.get('content-type')?.includes('text/event-stream') ?? false);
|
||||
|
||||
const body = await resp.text();
|
||||
const events = body.split('\n').filter(l => l.startsWith('event:'));
|
||||
assert('有 SSE 事件', events.length > 0, `events=${events.length}`);
|
||||
assert('包含 message_start', body.includes('message_start'));
|
||||
assert('包含 message_stop', body.includes('message_stop'));
|
||||
|
||||
// 检查 stop_reason
|
||||
const deltaMatch = body.match(/"stop_reason"\s*:\s*"([^"]+)"/);
|
||||
if (deltaMatch) {
|
||||
assert('流式 stop_reason 合法', ['end_turn', 'tool_use', 'max_tokens'].includes(deltaMatch[1]), `stop_reason=${deltaMatch[1]}`);
|
||||
}
|
||||
console.log(` 📝 SSE 事件数: ${events.length}`);
|
||||
} catch (e: any) {
|
||||
assert('流式请求', false, e.message);
|
||||
}
|
||||
|
||||
// 总结
|
||||
const passed = results.filter(r => r.passed).length;
|
||||
const failed = results.filter(r => !r.passed).length;
|
||||
console.log(`\n=== 端到端结果: ${passed} 通过, ${failed} 失败 ===\n`);
|
||||
}
|
||||
|
||||
runTests().catch(console.error);
|
||||
221
test/integration-compress-test.ts
Normal file
221
test/integration-compress-test.ts
Normal file
@@ -0,0 +1,221 @@
|
||||
/**
|
||||
* 集成测试：模拟长对话，验证上下文压缩流程
|
||||
*
|
||||
* 测试场景：30+ 条消息的工具模式对话，验证：
|
||||
* 1. 压缩触发条件（消息数 > 30 或字符数 > 60000）
|
||||
* 2. few-shot 头部不被压缩
|
||||
* 3. 最近 6 条消息保持原文
|
||||
* 4. 中间老消息被压缩
|
||||
* 5. 消息数量不变（压缩不丢弃）
|
||||
* 6. 总字符数显著减少
|
||||
*/
|
||||
|
||||
// 模拟 CursorMessage 类型
|
||||
interface CursorMessage {
|
||||
parts: { type: string; text?: string }[];
|
||||
id: string;
|
||||
role: string;
|
||||
}
|
||||
|
||||
// 从 converter.ts 复制常量
|
||||
const FEWSHOT_COUNT = 2;
|
||||
const MAX_CURSOR_MESSAGES = 30;
|
||||
const MAX_CONTEXT_CHARS = 60000;
|
||||
const KEEP_RECENT_MESSAGES = 6;
|
||||
const COMPRESS_CONTENT_MAX = 200;
|
||||
|
||||
// 从 converter.ts 复制 compressMessage
|
||||
function compressMessage(role: string, text: string): string {
|
||||
if (text.length <= COMPRESS_CONTENT_MAX) return text;
|
||||
if (role === 'user') {
|
||||
const actionMatch = text.match(/^Action output:\n([\s\S]*?)(?:\n\nBased on the output above|$)/);
|
||||
if (actionMatch) {
|
||||
const output = actionMatch[1];
|
||||
const firstLine = output.split('\n')[0]?.trim() || '';
|
||||
const lineCount = output.split('\n').length;
|
||||
return `Action output: [${output.length} chars, ${lineCount} lines] ${firstLine.substring(0, 80)}...`;
|
||||
}
|
||||
const errorMatch = text.match(/^The action encountered an error:\n([\s\S]*?)(?:\n\nBased on the output above|$)/);
|
||||
if (errorMatch) {
|
||||
return `Action error: ${errorMatch[1].substring(0, 150)}...`;
|
||||
}
|
||||
return text.substring(0, COMPRESS_CONTENT_MAX) + `... [${text.length} chars total]`;
|
||||
}
|
||||
if (role === 'assistant') {
|
||||
const toolBlocks = text.match(/```json action\s*\n([\s\S]*?)```/g);
|
||||
if (toolBlocks && toolBlocks.length > 0) {
|
||||
const summaries: string[] = [];
|
||||
for (const block of toolBlocks) {
|
||||
try {
|
||||
const jsonMatch = block.match(/```json action\s*\n([\s\S]*?)```/);
|
||||
if (jsonMatch) {
|
||||
const parsed = JSON.parse(jsonMatch[1]);
|
||||
const toolName = parsed.tool || parsed.name || 'unknown';
|
||||
const paramKeys = parsed.parameters ? Object.keys(parsed.parameters) : [];
|
||||
summaries.push(`[Called ${toolName}(${paramKeys.join(', ')})]`);
|
||||
}
|
||||
} catch { summaries.push('[Called action]'); }
|
||||
}
|
||||
const cleanText = text.replace(/```json action\s*\n[\s\S]*?```/g, '').trim();
|
||||
const briefText = cleanText.length > 100 ? cleanText.substring(0, 100) + '...' : cleanText;
|
||||
return (briefText ? briefText + '\n' : '') + summaries.join('\n');
|
||||
}
|
||||
return text.substring(0, COMPRESS_CONTENT_MAX) + `... [${text.length} chars]`;
|
||||
}
|
||||
return text.substring(0, COMPRESS_CONTENT_MAX) + '...';
|
||||
}
|
||||
|
||||
// 模拟 converter.ts 中的压缩流程
|
||||
function applyCompression(messages: CursorMessage[], hasTools: boolean): { compressedCount: number; charsBefore: number; charsAfter: number } {
|
||||
let compressedCount = 0;
|
||||
const charsBefore = messages.reduce((s, m) => s + m.parts.reduce((a, p) => a + (p.text?.length ?? 0), 0), 0);
|
||||
|
||||
if (hasTools && messages.length > FEWSHOT_COUNT) {
|
||||
if (charsBefore > MAX_CONTEXT_CHARS || messages.length > MAX_CURSOR_MESSAGES) {
|
||||
const keepRecentCount = Math.min(KEEP_RECENT_MESSAGES, messages.length - FEWSHOT_COUNT);
|
||||
const compressBoundary = messages.length - keepRecentCount;
|
||||
|
||||
for (let i = FEWSHOT_COUNT; i < compressBoundary; i++) {
|
||||
const original = messages[i].parts.map(p => p.text ?? '').join('');
|
||||
const compressed = compressMessage(messages[i].role, original);
|
||||
if (compressed.length < original.length) {
|
||||
messages[i] = { ...messages[i], parts: [{ type: 'text', text: compressed }] };
|
||||
compressedCount++;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const charsAfter = messages.reduce((s, m) => s + m.parts.reduce((a, p) => a + (p.text?.length ?? 0), 0), 0);
|
||||
return { compressedCount, charsBefore, charsAfter };
|
||||
}
|
||||
|
||||
// ==================== 构造测试数据 ====================
|
||||
|
||||
function buildLongConversation(turnCount: number): CursorMessage[] {
|
||||
const messages: CursorMessage[] = [];
|
||||
|
||||
// few-shot 头部 (2 条)
|
||||
messages.push({
|
||||
parts: [{ type: 'text', text: 'You are a coding assistant. Use tools with ```json action``` format...' }],
|
||||
id: 'fs1', role: 'user'
|
||||
});
|
||||
messages.push({
|
||||
parts: [{ type: 'text', text: 'Understood. I\'ll use the structured format for actions.' }],
|
||||
id: 'fs2', role: 'assistant'
|
||||
});
|
||||
|
||||
// 模拟 N 轮工具交互
|
||||
for (let i = 0; i < turnCount; i++) {
|
||||
// 用户请求或工具结果
|
||||
if (i === 0) {
|
||||
messages.push({
|
||||
parts: [{ type: 'text', text: `Please read the file src/module${i}.ts and analyze its structure.\n\nRespond with the appropriate action using the structured format.` }],
|
||||
id: `u${i}`, role: 'user'
|
||||
});
|
||||
} else {
|
||||
// 工具结果：模拟真实大小的文件内容
|
||||
const fileContent = `import { something } from './utils';\n\nexport class Module${i} {\n` +
|
||||
Array.from({ length: 50 }, (_, j) => ` public method${j}(): void { /* implementation line ${j} */ }`).join('\n') +
|
||||
`\n}\n`;
|
||||
messages.push({
|
||||
parts: [{ type: 'text', text: `Action output:\n${fileContent}\n\nBased on the output above, continue with the next appropriate action using the structured format.` }],
|
||||
id: `u${i}`, role: 'user'
|
||||
});
|
||||
}
|
||||
|
||||
// 助手的工具调用
|
||||
messages.push({
|
||||
parts: [{
|
||||
type: 'text',
|
||||
text: `Let me examine the structure of module${i}.\n\n\`\`\`json action\n{"tool": "read_file", "parameters": {"file_path": "src/module${i}.ts"}}\n\`\`\``
|
||||
}],
|
||||
id: `a${i}`, role: 'assistant'
|
||||
});
|
||||
}
|
||||
|
||||
return messages;
|
||||
}
|
||||
|
||||
// ==================== 运行测试 ====================
|
||||
|
||||
let passed = 0, failed = 0;
|
||||
function assert(name: string, condition: boolean, detail?: string) {
|
||||
if (condition) { passed++; console.log(` ✅ ${name}`); }
|
||||
else { failed++; console.log(` ❌ ${name}${detail ? ': ' + detail : ''}`); }
|
||||
}
|
||||
|
||||
console.log('\n=== 场景 1：短对话（不触发压缩）===');
|
||||
{
|
||||
const msgs = buildLongConversation(3); // 2 few-shot + 6 实际 = 8 条
|
||||
const originalCount = msgs.length;
|
||||
const { compressedCount, charsBefore, charsAfter } = applyCompression(msgs, true);
|
||||
assert('短对话不压缩', compressedCount === 0, `compressed=${compressedCount}`);
|
||||
assert('消息数不变', msgs.length === originalCount);
|
||||
assert('字符数不变', charsBefore === charsAfter);
|
||||
console.log(` 📊 ${msgs.length} 条消息, ${charsBefore} chars`);
|
||||
}
|
||||
|
||||
console.log('\n=== 场景 2：长对话（触发按条数压缩）===');
|
||||
{
|
||||
const msgs = buildLongConversation(20); // 2 + 40 = 42 条消息
|
||||
const originalCount = msgs.length;
|
||||
const { compressedCount, charsBefore, charsAfter } = applyCompression(msgs, true);
|
||||
assert('压缩触发', compressedCount > 0, `compressed=${compressedCount}`);
|
||||
assert('消息数不变（压缩不丢弃）', msgs.length === originalCount, `${msgs.length} vs ${originalCount}`);
|
||||
assert('总字符减少', charsAfter < charsBefore, `${charsAfter} < ${charsBefore}`);
|
||||
assert('压缩率 >50%', charsAfter < charsBefore * 0.5, `ratio=${(charsAfter / charsBefore * 100).toFixed(1)}%`);
|
||||
console.log(` 📊 ${msgs.length} 条, ${charsBefore} → ${charsAfter} chars (${(100 - charsAfter / charsBefore * 100).toFixed(1)}% 减少)`);
|
||||
|
||||
// 验证 few-shot 头部不被压缩
|
||||
assert('few-shot[0] 保持原文', msgs[0].parts[0].text!.includes('You are a coding assistant'));
|
||||
assert('few-shot[1] 保持原文', msgs[1].parts[0].text!.includes('Understood'));
|
||||
|
||||
// 验证最近 6 条保持完整
|
||||
const lastSix = msgs.slice(-6);
|
||||
for (const m of lastSix) {
|
||||
const text = m.parts[0].text!;
|
||||
const isOriginal = text.includes('Action output:\n') || text.includes('```json action');
|
||||
assert(`最近消息保持原文 (role=${m.role}, ${text.length} chars)`, isOriginal || text.length <= COMPRESS_CONTENT_MAX);
|
||||
}
|
||||
|
||||
// 验证中间消息被压缩
|
||||
const midMsg = msgs[4]; // 第 5 条消息（应在压缩区）
|
||||
assert('中间消息已压缩', midMsg.parts[0].text!.length < 300, `len=${midMsg.parts[0].text!.length}`);
|
||||
}
|
||||
|
||||
console.log('\n=== 场景 3：非工具模式（不压缩）===');
|
||||
{
|
||||
const msgs = buildLongConversation(20);
|
||||
const { compressedCount } = applyCompression(msgs, false);
|
||||
assert('非工具模式不压缩', compressedCount === 0);
|
||||
}
|
||||
|
||||
console.log('\n=== 场景 4：大字符数但少消息（按字符数触发）===');
|
||||
{
|
||||
const msgs: CursorMessage[] = [
|
||||
{ parts: [{ type: 'text', text: 'few-shot user' }], id: 'fs1', role: 'user' },
|
||||
{ parts: [{ type: 'text', text: 'few-shot assistant' }], id: 'fs2', role: 'assistant' },
|
||||
];
|
||||
// 10 轮，但每条都很大
|
||||
for (let i = 0; i < 10; i++) {
|
||||
msgs.push({
|
||||
parts: [{ type: 'text', text: `Action output:\n${'x'.repeat(8000)}\n\nBased on the output above, continue with the next appropriate action using the structured format.` }],
|
||||
id: `u${i}`, role: 'user'
|
||||
});
|
||||
msgs.push({
|
||||
parts: [{ type: 'text', text: `Analysis done.\n\n\`\`\`json action\n{"tool": "write_file", "parameters": {"file_path": "out${i}.ts", "content": "${'y'.repeat(3000)}"}}\n\`\`\`` }],
|
||||
id: `a${i}`, role: 'assistant'
|
||||
});
|
||||
}
|
||||
const originalChars = msgs.reduce((s, m) => s + m.parts.reduce((a, p) => a + (p.text?.length ?? 0), 0), 0);
|
||||
assert('超过字符阈值', originalChars > MAX_CONTEXT_CHARS, `${originalChars} > ${MAX_CONTEXT_CHARS}`);
|
||||
|
||||
const { compressedCount, charsBefore, charsAfter } = applyCompression(msgs, true);
|
||||
assert('按字符数触发压缩', compressedCount > 0);
|
||||
assert('字符数大幅减少', charsAfter < charsBefore * 0.5, `${charsAfter} < ${charsBefore * 0.5}`);
|
||||
console.log(` 📊 ${msgs.length} 条, ${charsBefore} → ${charsAfter} chars (${(100 - charsAfter / charsBefore * 100).toFixed(1)}% 减少)`);
|
||||
}
|
||||
|
||||
console.log(`\n=== 总结果: ${passed} 通过, ${failed} 失败 ===\n`);
|
||||
process.exit(failed > 0 ? 1 : 0);
|
||||
Reference in New Issue
Block a user