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2026-04-06 log Smart Support docs/phases/phase-2-dev-log.md
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Phase 2: Multi-Agent Routing + Safety -- Development Log

Status: COMPLETED Phase branch: phase-2/multi-agent-safety Date started: 2026-03-30 Date completed: 2026-03-30

What Was Built

  • Intent Classification (app/intent.py): LLM 结构化输出意图分类器Pydantic 模型IntentTarget, ClassificationResult。支持单意图、多意图、模糊检测可配置置信度阈值。
  • Discount Agent (app/agents/discount.py): Mock Agentapply_discountwrite + interrupt和 generate_couponread。验证折扣范围 1-100%。
  • Interrupt Manager (app/interrupt_manager.py): TTL 中断追踪30 分钟自动过期。提供 register, check_status, resolve, cleanup_expired, generate_retry_prompt。
  • Webhook Escalation (app/escalation.py): HTTP POST 升级,指数退避重试(最多 3 次。WebhookEscalator + NoOpEscalatorEscalationService Protocol。
  • Enhanced Supervisor (app/graph.py): 动态 Agent 描述 Supervisor 提示。意图分类器附加到 graph。多意图提示注入。
  • Vertical Templates: 三个行业 YAML 模板电商、SaaS、金融科技
  • Template Loading (app/registry.py): load_template() 和 list_templates()。
  • WebSocket Integration: 模糊意图发送澄清消息。中断 TTL 检查 -- 过期中断返回重试提示。

Test Coverage

  • Total: 153 tests (Phase 1: 87 + Phase 2: 66)
  • Coverage: 90.18%
  • intent.py: 100% | discount.py: 96% | interrupt_manager.py: 100% | escalation.py: 100%