ThearchyHelios
450758185d
K3:核查 agent 看到的查询结果先遮、存下的快照也遮
双盲复算、反方审稿、审批质询共用的 engine/verify_agent.py 以前把查询结果原样交给模型(db_query 自己落快照,ToolMessage
里是原样的结果),遮罩全靠审批质询事后按值认,期 4 起六轮复核每轮都找到新的漏法;运行详情「工件」页签走的通用接口
GET /api/artifacts/{id} 还把核查的查询快照原样给出。根本的修法是不让模型看到遮罩值。
- tools/datasource:查询工具加遮罩开关 mask_results(缺省关,Agent 节点、调用工具节点照旧)。打开时数据源设了遮罩的,
先按 engine/masking.py 的 mask_query_result 遮好再交给模型、再落快照:列名直接对上的、按 SQL 认出取自遮罩列的
(别名、函数、子查询、WITH、SELECT *,复用 _derived_hidden;SQL 解析不了又写着遮罩列的,整份结果的列都遮)整列
换成「已遮罩」、类型记成文本;同一份结果里别的格子整格是遮罩值的换掉,文字格里夹着的那一截换掉(换了写法的号码
也认);列名不换。结果里一列都没取自遮罩列的(数值的汇总、只数个数、只在条件里用到)原样。快照里 mask_columns
另记下查询时遮了的、改了名字的结果列(证据面板、质询工件据此画成遮罩列),masked_at_query 记下查询时就整列遮掉的列。
这一次遮掉的值并进 ToolContext.extra[MASKED_VALUES_KEY],只在内存里。
- verify_agent:建查询工具时和 force_readonly 一样打开遮罩开关;格子引用指到查询时就遮了的列,照实说是遮罩列、不采信;
遮掉的值经 VerifyOutcome.masked_values 交回调用方(不进 as_dict、不往外交);系统提示补一句「已遮罩」是什么。
- 审批质询:按值遮降为第二道防线。agent 自己的快照查询时就遮好了,收不到遮罩值,改由 masked_values 并进来(_plan 的
seen),回答、查询清单照旧按值遮;「已遮罩」本身不收成遮罩值。事后取质询工件时内存里的值已经不在,SQL 检查结果的
片段、说明照事件里记下的那条 SQL 换(_recorded_swaps:逐词对出回答时换掉的字面量和 LIKE 里换掉的那一截)。
- 双盲复算取盲算值、反方审稿的引用、证据面板、可验证报告(带遮罩的快照只给哈希,照旧)、推演、运行对比(不收核查的
查询)都按快照里已经是「已遮罩」照常工作,文件不用改。
测试:核查 agent 选出遮罩列(直接、别名、函数、子查询、WITH、SELECT *)时交给假模型的 ToolMessage、落库的快照、通用
工件接口、tool.end 预览、收尾交给模型的查询结果里都是「已遮罩」;没碰遮罩列的聚合查询原样、照常取值;文字格夹着的
号码换掉那一截;引用遮罩格子不采信;SQL 认不出时整份遮;开关缺省关、没设遮罩的源快照一字不差;列名不改;审批质询、
反方审稿、双盲复算各补一条端到端;质询工件的检查片段照记下的 SQL 换。逐处去掉实现(开关、并进内存的值、照记下的
SQL 换、跳过「已遮罩」、遮罩格子的说法、记下改了名字的列、文字格按子串换、不改列名)对应的用例都会变红。
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