Files
group_fqcd_jr/docs/evidence/20260918-t2b-accept-pipeline.json
T
张胜宇 5d0becb67d 客服 Agent 重构收口:五出口决策链 + 知识库档位隔离 + 前端入参边界(答辩演示版本)
一、客服 Agent 智能增强(正面回应"不智能、动不动就转人工")
- 决策链由 2 个出口扩到 5 个:E1 澄清 / E2 计算型 / E3 知识直返 / E4 证据约束生成 / E5 分级回退
- 转人工从"默认动作"降为最后一档 E5c,只保留 4 类白名单:
  P0 反诈 / P1 账户与个人数据 / P2 写操作与争议 / 用户明确要求人工
- 46 条金标实测(修复前 → 修复后):
  转人工率 43.5% → 10.9%;出口准确率 45.7% → 100%;事实正确率 69.6% → 100%
  禁忌违反 1 → 0;档位越权 / 无出处数字 / 误拒 四项零容忍全 0
- 安全不变量 INV-1~INV-5;零容忍规则未删,改的是挂载点
  (输出侧字面黑名单 → 检索层档位隔离 + 判定层合规词表 + 输出守护)

二、知识库:档位单点化与物理隔离
- 新增 app/core/knowledge_tier.py 作为档位规则唯一落点(G-03),
  knowledge_contracts.py 原定义块改为显式再导出(X as X,非副本)
- 档位过滤由 bool 默认值(fail-open)改为 tiers 必填集合(缺参即 TypeError)
- Milvus 侧四集合按 visibility 分区键物理隔离;双 schema 收敛为一套
- 新增 app/core/actor.py:访客三元组与匿名判定的唯一构造/判定点(G-01/G-01b)
- 新增 app/core/fund_fee_rules.py:费率计算纯函数

三、前端入参边界对齐(本轮 W11 新修,4 处"校验宽于存储")
- message 加 max_length=8000(与浮窗 widget.js 的 maxlength 一致)
- session_id 加 1—64;idempotency_key 上限 128 → 64(对齐列宽 String(64))
- feedback_type 加 max_length=32(对齐列宽 String(32))
- 8 条路径参数补 min_length=1 + max_length=64 + 字符集正则
  ({session_id} / {run_id} / {handover_id})
- 改前超限值会落到 MySQL 才失败(500);改后一律 422 AGENT_INPUT_INVALID + 字段级定位
- 新增 tests/unit/api/test_frontend_boundaries.py(33 例),含"端点表 ↔ OpenAPI 全量对照"

四、投顾模块整体清除(D4.4 / D4.5)
- 删除投顾相关 controller / schema / model / repository / service 及门户页面
- tools/portal_api_check.py 同步作废 AD003/AD005/AD011/A047 四条用例与 advisor_t 登录
  (端点与账号均已不存在,此前稳定报 3 条假红)

五、验证(提交前实测)
- pytest -q:1856 passed / 2 skipped / 0 failed
- ruff check app tools tests:19(= 基线);mypy app:2(= 基线)
- 前端接口契约体检 portal_api_check.py:38 项,通过 34,失败 0,跳过 4
- 全链路冒烟 e2e_smoke_test.py --read-only:31/31
- HTTP 全链路探针 http_probe.py:11/11 succeeded
- 跨文档一致性 _consistency.py:GATE PASS
- 真机边界复验 12 条:12/12 符合预期

六、纪律与文档
- 可改文件白名单 A-09(docs/46)与底座会签申请单 A-10(docs/47,组 1—组 4 全部受理)
- 零 DDL:未新增/修改任何表结构,89 张业务表与基线一致
- 证据留痕:docs/evidence/**(含 46 条金标 score、快照、清除与重建记录)
- 未提交(刻意排除,见提交说明):仓库内 客服agent/ 与 开发文档/ 是 2026-09-16 前的
  过期副本(Todolist 440 行 vs 权威 D2.1 1167 行),权威正本在仓库外;
  _chunks_report.txt 是 tools/build_knowledge_chunks.py 生成的本地产物
2026-09-20 14:33:30 +08:00

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{
"artifact": "t2b-accept-pipeline",
"generated_at": "2026-09-18T10:29:36.863390Z",
"date_local": "2026-09-18",
"purpose": "D2.1 T2 第二步:受理服务随客服模块清除被剥掉的 4 项能力中,补齐 3 项、有意放弃 1 项",
"trigger": "T2-1 的基线红测试 test_agent_run_acceptance::test_customer_service_accept_redacts_sensitive_message_before_persistence 查明了原因:受理时的消息脱敏不存在,客户原始凭据明文落库",
"removed_capabilities_and_disposition": [
{
"capability": "受理时消息脱敏 sanitize_customer_service_message",
"head_reference": "HEAD:app/service/agent_run_application_service.py:149",
"before": "ConversationMessage.content = request.message(原文)",
"after": "stored_request = request.model_copy(update={'message': sanitize(...)});落库与幂等哈希都用脱敏形状",
"why_hash_too": "幂等哈希若仍用原文,同一请求的两次提交会因「原文 vs 脱敏文本」算出两个哈希而互相冲突",
"status": "已恢复"
},
{
"capability": "chitchat_streak 服务端覆写",
"before": "无写入方(Agent 侧 request.metadata.chitchat_streak 恒为 0,收口引导永不触发)",
"after": "chitchat_streak() 与两张闲聊表从已删的 customer_service_routing.py 收口进 app/core/customer_service_rules.py;受理时用已落库历史重算并覆写",
"status": "已恢复"
},
{
"capability": "clarification_round 服务端覆写",
"before": "无写入方;且 Agent 的 E5a 读 context.clarification_round 恒为 0,同话题上限 2 轮失效",
"after": "受理时取自会话行并夹紧到 le=2(model_copy(update=...) 不校验);Agent 的 E5a 改读 request.metadata.clarification_round",
"status": "已恢复"
},
{
"capability": "session_context(Redis 短期上下文)",
"before": "无消费方",
"after": "有意不做:Agent 用的是 Worker 侧 request.history(MySQL 且按主体过滤,见 runtime._conversation_history);恢复 Redis 双写只带来不一致与 TTL 成本。元数据中显式覆写为空元组",
"status": "有意放弃(留痕)"
},
{
"capability": "MySQL 历史回退读",
"before": "只按 session_id 取历史、跨主体可读(缺陷本体)",
"after": "不恢复旧实现;新链路走 ConversationRepository.messages(session_id, user_id, ...)(按 customer_id 过滤),与 Worker 侧同源同口径",
"status": "以新链路重写(F-01 前置满足)"
}
],
"deliverables": [
"app/core/customer_service_rules.py(新增 CHITCHAT_MESSAGES / CHITCHAT_PHRASES / is_chitchat_message / chitchat_streak)",
"app/service/agent_run_application_service.py(stored_request 脱敏、幂等哈希改用脱敏形状、build_outbox_metadata 恢复客服覆写、新增 _recent_user_messages)",
"app/service/agent/implementations/customer_service.py(E5a 改读 request.metadata.clarification_round)",
"tests/unit/service/test_agent_run_outbox_metadata.py(新建)",
"tests/unit/core/test_customer_service_rules.py(补闲聊判定与连续计数用例)"
],
"gates": {
"pytest": "6 failed, 1501 passed, 2 skipped(T0 基线 8/1440/2;上一轮 7/1482/2)",
"pytest_no_new_failures": true,
"pytest_fixed_relative_to_baseline": [
"tests/unit/tools/test_rbac_seed_consistency.py::test_permission_ids_are_consistent_between_seed_and_grant_scripts",
"tests/integration/test_agent_run_acceptance.py::test_customer_service_accept_redacts_sensitive_message_before_persistence"
],
"pytest_remaining_failures_are_baseline_subset": [
"tests/integration/test_compliance_seed_mysql.py x4",
"tests/integration/test_profile_snapshot_current_invariant_mysql.py",
"tests/integration/test_worker_runtime_mysql.py::test_http_accept_worker_commit_query_and_repeat[False]"
],
"ruff": "Found 22 errors(与 T0 基线逐项相同)",
"ruff_changed_files": "All checks passed",
"mypy": "Found 3 errors in 3 files (checked 231 source files)——与基线 3 项逐项相同,均不在本次改动文件内",
"check_authoritative_docs": "checked 50 documents, no number collision",
"audit_schema": "schema audit passed: 89 business tables, no missing or unexpected tables"
},
"chitchat_streak_spotcheck": {
"streak(['你好','谢谢','再见'], '哈喽')": 4,
"streak(['你好','费率是多少'], '哈喽')": 1,
"streak([], '费率是多少')": 0,
"streak(5 x chitchat, '你好')": 5,
"is_chitchat('你好吗')": false,
"note": "「你好吗」不是词表成员:一期就是精确匹配,未放宽成前缀匹配"
},
"docs_writeback": [
"开发文档/D1.6-...md 新增 §4.10 第六轮会话记录",
"客服agent/D2.1-客服Agent执行Todolist.md 新增 v5.7 修订要点",
"group_fqcd_jr/docs/customer-service-routing-legacy-keywords.md 新增 §六 词表最终落点"
],
"open_items": [
"E2 计算型出口(H-02)未实现",
"E4 证据约束生成(H-03)未实现",
"合规种子未跑:agent_negative_word / agent_reply_template 均 0 行 active(C-05 / C-06)",
"prompt_template_version.customer_service_chitchat 的 system_prompt 仍写旧品牌「南方财富」",
"P0 拆级(硬级建单 / 凭据级不建单 + 求助问法放行)已批准,待在 C-03 落地",
"admin / advisor / operator 档位仍收敛为 {public},待裁定"
],
"honesty": "6 项失败全部是 T0 基线失败的子集,无新增;E2/E4 未实现,属能力缺口而非完成。"
}