pigo/docs/agent-loop-flowchart.html at master · smallnest/pigo · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>pigo Agent Loop 流程图</title>
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</head>
<body>
  <div class="container">
    <div class="header">
      <p class="eyebrow">Agent Loop Flowchart</p>
      <h1>pigo Agent 两层循环</h1>
      <p class="subtitle">internal/runtime/loop.go · 外层后续消息驱动 · 内层 turn 直到无工具调用 · 唯一出口 finish()</p>
      <p class="diagram-desc"><b>流程图 (Flowchart)</b> — 行为性图形。聚焦 Agent 主循环的两层嵌套结构：内层跑 turn（流式回复→停止原因分派→执行工具→回填），外层在内层收敛后消费后续消息。</p>
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        <text x="82" y="122" fill="#78716c" font-size="10" font-weight="600" font-family="'Geist Mono', monospace" letter-spacing="0.1em">外层循环 · for { } · 后续消息驱动</text>

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             LEGEND
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    </div>
    <div class="cards">
      <div class="card">
        <p class="card-eyebrow">INNER LOOP</p>
        <div class="card-header">
          <div class="card-dot accent"></div>
          <h3>内层 · turn 循环</h3>
        </div>
        <ul>
          <li>• 一次 turn：流式回复 → 执行工具 → 回填</li>
          <li>• 无工具调用即自然结束，break 出内层</li>
          <li>• afterTurn 未停止则继续下一 turn</li>
          <li>• allTerminate（工具全体请求终止）直达 finish</li>
        </ul>
      </div>

      <div class="card">
        <p class="card-eyebrow">STOP REASON</p>
        <div class="card-header">
          <div class="card-dot ink"></div>
          <h3>停止原因分派</h3>
        </div>
        <ul>
          <li>• tool_use：执行工具后回填续跑</li>
          <li>• 无工具：自然结束，转外层判定</li>
          <li>• length：失败所有工具调用促模型重发</li>
          <li>• error / aborted：终态，立即 finish</li>
        </ul>
      </div>

      <div class="card">
        <p class="card-eyebrow">OUTER LOOP</p>
        <div class="card-header">
          <div class="card-dot muted"></div>
          <h3>外层 · 后续消息</h3>
        </div>
        <ul>
          <li>• 内层收敛后查 GetFollowUpMessages</li>
          <li>• 有后续消息 → 追加并重跑内层</li>
          <li>• 无 → break 收尾</li>
          <li>• 所有终止路径汇于唯一出口 finish()</li>
        </ul>
      </div>
    </div>
    <div class="footer">
      pigo · github.com/smallnest/pigo · internal/runtime/loop.go
    </div>
  </div>
</body>
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