Claude Code 可靠性机制对比

章节：案例研究第17章第2节
难度：⭐⭐⭐⭐ 专家级
阅读时间：25-30 分钟
核心收获：深入理解 Claude Code 的可靠性设计

20.6 理论要点：可靠性的三大支柱

20.6.1 三大支柱

20.6.2 与豆包的对比

20.7 实战案例：可靠性机制实现

20.7.1 状态快照

class StateSnapshot:
    def __init__(self):
        self.snapshots = []

    def create_snapshot(self, state):
        """创建状态快照"""
        snapshot = {
            "timestamp": time.time(),
            "state": state,
            "context": get_current_context()
        }
        self.snapshots.append(snapshot)
        return snapshot

    def restore(self, snapshot_id):
        """恢复到指定快照"""
        snapshot = self.get_snapshot(snapshot_id)
        restore_state(snapshot["state"])
        restore_context(snapshot["context"])

20.7.2 插件熔断

class PluginCircuitBreaker:
    def __init__(self, failure_threshold=5, reset_timeout=60):
        self.failure_threshold = failure_threshold
        self.reset_timeout = reset_timeout
        self.failure_count = {}
        self.last_failure_time = {}

    def call(self, plugin_name, func):
        """调用插件"""
        if self.is_open(plugin_name):
            raise CircuitOpenError(f"Plugin {plugin_name} is open")

        try:
            result = func()
            self.reset(plugin_name)
            return result
        except Exception as e:
            self.record_failure(plugin_name)
            raise

    def is_open(self, plugin_name):
        """检查熔断器是否打开"""
        if plugin_name not in self.failure_count:
            return False

        if self.failure_count[plugin_name] >= self.failure_threshold:
            elapsed = time.time() - self.last_failure_time[plugin_name]
            if elapsed < self.reset_timeout:
                return True
            else:
                self.reset(plugin_name)
                return False
        return False

20.8 图文说明

📌 待补充：建议绘制以下示意图 1. 三大支柱架构图 2. 状态快照流程图 3. 熔断器状态流转图 4. 与豆包对比雷达图

20.9 关键启示

📝 版本迭代记录