DiAL/openspec/changes/checker-observation/specs/icmp-checker/spec.md

MODIFIED Requirements

Requirement: ping detail 摘要

系统 SHALL 在 ping API 序列化时从 observation 动态生成结构化 detail 摘要，展示关键指标。API registry type SHALL 仍为 ping。

Scenario: 目标可达无丢包

• WHEN ping observation 为 alive=true, avgLatencyMs=12, packetLoss=0%, transmitted=3, received=3
• THEN detail SHALL 为 alive, avg 12ms, loss 0% (3/3)

Scenario: 目标可达有丢包

• WHEN ping observation 为 alive=true, avgLatencyMs=156, maxLatencyMs=340, packetLoss=33%, transmitted=3, received=2
• THEN detail SHALL 包含 avg、max 和 loss 信息

Scenario: 目标不可达

• WHEN ping observation 为 alive=false, transmitted=3, received=0
• THEN detail SHALL 为 unreachable (0/3 received)