docs: register llm_calls telemetry schema in wiki

research-wiki/graph/edges.json

@@ -5,6 +5,16 @@
       "id": "plan:m1-core-plan",
       "label": "M1 核心里程碑实现计划",
       "type": "plan"
+    },
+    {
+      "id": "schema:llm-calls",
+      "label": "表结构: llm_calls(遥测 18 字段)",
+      "type": "schema"
+    },
+    {
+      "id": "metric:call-telemetry-coverage",
+      "label": "每次调用必录覆盖率(含缓存命中/失败/取消)",
+      "type": "metric"
     }
   ],
   "links": [
@@ -14,6 +24,20 @@
       "relation": "implements",
       "evidence": "plans/2026-07-20-m1-core-plan.md 实现 designs/2026-07-20-m1-core-design.md 冻结的全部签名",
       "added": "2026-07-20T10:18:41.339537+00:00"
+    },
+    {
+      "source": "metric:call-telemetry-coverage",
+      "target": "schema:llm-calls",
+      "relation": "measures",
+      "evidence": "遥测必录铁律: 一切调用路径落 llm_calls",
+      "added": "2026-07-20T11:11:46.302045+00:00"
+    },
+    {
+      "source": "schema:llm-calls",
+      "target": "design:m1-core-design",
+      "relation": "implements",
+      "evidence": "M1 设计 §4.4 冻结 18 字段",
+      "added": "2026-07-20T11:11:47.240466+00:00"
     }
   ]
 }

research-wiki/index.md

@@ -1,6 +1,6 @@
 # Research Wiki 索引
 
-> 自动生成，更新时间：2026-07-20 10:18 UTC
+> 自动生成，更新时间：2026-07-20 11:11 UTC
 
 ## design (2)
 - [2026-07-20-m1-core-design](designs/2026-07-20-m1-core-design.md) `design:2026-07-20-m1-core-design`
@@ -9,3 +9,9 @@
 ## plan (2)
 - [2026-07-20-m1-core-plan](plans/2026-07-20-m1-core-plan.md) `plan:2026-07-20-m1-core-plan`
 - [M1 核心里程碑实现计划](plans/m1-core-plan.md) `plan:m1-core-plan`
+
+## schema (1)
+- [表结构: llm_calls(遥测 18 字段)](schemas/llm-calls.md) `schema:llm-calls`
+
+## metric (1)
+- [每次调用必录覆盖率(含缓存命中/失败/取消)](metrics/call-telemetry-coverage.md) `metric:call-telemetry-coverage`

research-wiki/log.md

@@ -5,3 +5,8 @@
 - [2026-07-20 10:18 UTC] 新增 plan: M1 核心里程碑实现计划 (plan:m1-core-plan)
 - [2026-07-20 10:18 UTC] 新增边: plan:m1-core-plan --implements--> design:m1-core-design
 - [2026-07-20 10:18 UTC] 重建索引: 4 篇页面
+- [2026-07-20 11:11 UTC] 新增 schema: 表结构: llm_calls(遥测 18 字段) (schema:llm-calls)
+- [2026-07-20 11:11 UTC] 新增 metric: 每次调用必录覆盖率(含缓存命中/失败/取消) (metric:call-telemetry-coverage)
+- [2026-07-20 11:11 UTC] 新增边: metric:call-telemetry-coverage --measures--> schema:llm-calls
+- [2026-07-20 11:11 UTC] 新增边: schema:llm-calls --implements--> design:m1-core-design
+- [2026-07-20 11:11 UTC] 重建索引: 6 篇页面

research-wiki/metrics/call-telemetry-coverage.md

@@ -0,0 +1,9 @@
+---
+type: metric
+node_id: metric:call-telemetry-coverage
+title: 每次调用必录覆盖率(含缓存命中/失败/取消)
+date: 2026-07-20
+---
+
+# 每次调用必录覆盖率(含缓存命中/失败/取消)
+

research-wiki/schemas/llm-calls.md

@@ -0,0 +1,36 @@
+---
+type: schema
+node_id: schema:llm-calls
+title: "表结构: llm_calls(遥测 18 字段)"
+date: 2026-07-20
+---
+
+# 表结构: llm_calls(遥测 18 字段)
+
+
+## 列定义(冻结,M1 设计 §4.4 / ARCH §7.8)
+
+| 列 | 类型 | 说明 |
+|---|---|---|
+| call_id | TEXT PRIMARY KEY | 每次尝试独立 UUID;INSERT OR IGNORE 幂等 |
+| parent_call_id / session_id | TEXT | 调用链路(agent step → LLM call) |
+| model / provider / source_name | TEXT NOT NULL | 溯源;model 由旧 Protocol 的 model_name 更名(VT 迁移 §8) |
+| messages / response / thinking | TEXT NOT NULL | messages 落库前多模态 part 摘要(与缓存 key 共用 digest_messages) |
+| prompt_tokens / completion_tokens | INTEGER NOT NULL | usage 帧;缺失按 est 兜底 |
+| usage_source | TEXT NOT NULL | measured / estimated |
+| latency_ms | INTEGER NOT NULL | 尝试耗时;缓存命中 0 |
+| ttft_ms / max_inter_token_ms | REAL | 流式活性测量 |
+| cache_hit | INTEGER NOT NULL DEFAULT 0 | 命中标记 |
+| error | TEXT | 异常信息;取消记 "cancelled" |
+| cost | REAL | M1 恒 NULL,M2 pricing 换算 |
+| created_at | TEXT NOT NULL DEFAULT (datetime('now')) | 落库时刻 |
+
+## 埋点位置(单一 helper 铁律)
+
+- `middleware/telemetry.py::TelemetryEmitter` 是全库**唯一** `record_llm_call` 调用点;
+- `TelemetryMW`(最外层)记缓存命中与最终失败;`RetryMW._emit` 经同一 Emitter 逐次记尝试;
+- 写失败降级 warning 不冒泡;取消路径 finally 尽力记录。
+
+## 评估基线
+
+首版无历史基线,标"待首次运行后建立";验收断言: 单测覆盖成功/失败/缓存命中/取消四路径各产生恰一行;并发 50 协程写全落库。