Function runAgentLoop

test/e2e-agentic.mjs:397–497

(userMessage, { label = '', verbose = false, extraTools, toolChoice } = {})

// ─── Agentic 循环驱动器 ─────────────────────────────────────────────────
async function runAgentLoop(userMessage, { label = '', verbose = false, extraTools, toolChoice } = {}) {
    const messages = [{ role: 'user', content: userMessage }];
    // 更强的 system prompt：明确要求 tool-first，禁止不调工具就回答
    const systemPrompt = [
        'You are an AI coding assistant with full file system access.',
        'CRITICAL RULES:',
        '1. You MUST use tools to read files before discussing their content. Never guess file contents.',
        '2. You MUST use Write or Edit tools to actually modify files. Never just show code in text.',
        '3. You MUST use Bash to run commands. Never pretend to run them.',
        '4. Always use LS or Glob first to discover files if you are not sure about paths.',
        '5. Use attempt_completion when the task is fully done.',
        '6. Working directory is /project. All files are accessible via the Read tool.',
    ].join('\n');

    let turnCount = 0;
    const toolCallLog = [];
    let finalResult = null;

    while (turnCount < MAX_TURNS) {
        turnCount++;

        // 发送请求
        const resp = await fetch(`${BASE_URL}/v1/messages`, {
            method: 'POST',
            headers: { 'Content-Type': 'application/json', 'x-api-key': 'dummy' },
            body: JSON.stringify({
                model: MODEL,
                max_tokens: 8096,
                system: systemPrompt,
                tools: extraTools ? CLAUDE_CODE_TOOLS.filter(t => extraTools.includes(t.name)) : CLAUDE_CODE_TOOLS,
                ...(toolChoice ? { tool_choice: toolChoice } : {}),
                messages,
            }),
        });

        if (!resp.ok) {
            const text = await resp.text();
            throw new Error(`HTTP ${resp.status}: ${text.substring(0, 200)}`);
        }

        const data = await resp.json();

        if (verbose) {
            const textBlock = data.content?.find(b => b.type === 'text');
            if (textBlock?.text) {
                console.log(info(`  [Turn ${turnCount}] 模型文本: "${textBlock.text.substring(0, 100)}..."`));
            }
        }

        // 收集本轮工具调用
        const toolUseBlocks = data.content?.filter(b => b.type === 'tool_use') || [];

        if (data.stop_reason === 'end_turn' || toolUseBlocks.length === 0) {
            // 任务自然结束
            const textBlock = data.content?.find(b => b.type === 'text');
            finalResult = textBlock?.text || '(no text response)';
            break;
        }