{"name":"api-relay","version":"0.1.0","description":"OpenAI 兼容的模型 API 聚合中转站，内嵌传话层工程降损（P2 预检 / P3 失败归因 / P8 损耗度量）","endpoints":{"chat":"POST /v1/chat/completions","embeddings":"POST /v1/embeddings","completions":"POST /v1/completions","models":"GET /v1/models","health":"GET /healthz","admin":"GET /admin/api/overview（需 X-Admin-Token）","explain":"GET /v1/attribution/catalog（错误归因目录，便于客户端预先处理）"},"loss_reduction":{"precheck":"P2 调用前意图预检（fail-open）","attribution":"P3 失败归因卡片（不改写成功响应）","meter":"P8 损耗量化基线","trace":"P5 请求级轨迹（GET /admin/api/traces）"}}