fix: saveWithDedupe 透传显式 epistemic_status——trustEpistemicWeighting 的写入通路缺口 by modusensus · Pull Request #331 · slow-stack/mneme

modusensus · 2026-09-28T15:16:38Z

背景(实验现场发现)

E 系列四臂实验(#280 第二问,trustEpistemicWeighting 控制臂)跑出一个不该出现的现象:重排臂与对照臂的注入序逐条相同——加权重排对实验种入的记忆整体空转。代码核实定位到创建路径:

store 端 save 支持显式 epistemic_status(省略时回退内容标记推断),patch 路径 store.update → resolveEpistemicStatus 也通;
唯独 saveWithDedupe(工具与管线的主写入路径)的字段清单里没有它——显式字段被丢弃,推断对英文/无标记内容无能为力,全落 subjective;
后果:v0.4.5 起信任加权只有消费者、没有写入通路,EPISTEMIC_WEIGHTS 对这类记忆整池均匀 ×0.7,重排是恒等映射。

改动

saveWithDedupe 的 store.save 调用透传 epistemic_status: memory.epistemic_status;
undefined 保持推断行为(存量零变化——现有中文内容推断测试原样通过),显式值优先,契约与 resolveEpistemicStatus 一致;
回归测试(test/epistemic.test.js +1):显式字段必须穿透 saveWithDedupe 落库,并断言加权前后分数关系——observation 条目权重 1.0 分数不变;字段一旦再被丢弃,全体缩放,断言当场红。

验证

已变基到 v0.8.9 main(73f7ff5);全量 npm test 1405 → 1406 全绿(本机唯一失败为协作板已记录的 worktree+junction 环境特有问题,与本次改动无关);npm run sync 后 check-sync 平价;
修复后四臂重跑(151/200 有效记录):R+ 注入序 ≠ P 注入序(去前缀)151/151(修复前 0/151),重排真实生效。

关联

讨论实验分享：余弦阈值门控降不了谄媚（一个否定性结果） #280 第二问的完整读数(重排净功劳、[verified] 前缀标记的独立归因)随实验回复发出;
本修复不改变任何默认行为:该开关 opt-in 默认关,且此前显式字段从未真正落库过。

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📝 Walkthrough

Walkthrough

saveWithDedupe 创建记忆时，会将显式的 epistemic_status 传给 store.save。未提供该字段时，存储层仍按原有逻辑推断。新增回归测试验证状态写入和评分行为。

Changes

记忆创建状态透传

Layer / File(s)	Summary
状态透传与回归验证 `dsh-mneme/src/service.js`, `dsh-mneme/lib/service.js`, `dsh-mneme/test/epistemic.test.js`, `dsh-mneme/CHANGELOG.md`	`saveWithDedupe` 创建记忆时将 `epistemic_status` 传给 `store.save`。未提供该字段时，存储层仍按原有逻辑推断。测试验证显式的 `subjective` 和 `observation` 状态会写入存储，并检查启用 epistemic 加权前后的分数差。变更日志记录了该修复。

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Suggested reviewers: anans-ivresse

Merge Risk: 🔵 Low · up to f570b

The change’s status persistence is tested, but its new score assertion does not verify epistemic weighting. This leaves a bounded test-coverage gap; no runtime failure is established.

Architecture Summary

Architecture risk: 🔵 Low · up to f570b

The change affects 1 system.

Changed systems: dsh-mneme

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

observed — dsh-mneme (service) was modified; 4 changed files map to changed impact.

Before / after behavior

observed — Modified behavior in dsh-mneme/test/epistemic.test.js: 新增 saveWithDedupe 回归测试：显式传入的 subjective 和 observation 状态须写入存储；对英文内容搜索时，observation 条目须成为候选，并且启用 epistemic 加权前后的最终分数差小于 1e-9。
observed — Modified behavior in dsh-mneme/CHANGELOG.md: 在 [Unreleased] 下新增修复条目：描述 saveWithDedupe 创建路径透传显式 epistemic_status；未提供时维持原有推断行为，并列出相关回归测试。
observed — Modified behavior in dsh-mneme/lib/service.js: 新建记忆时将 memory.epistemic_status 传入 store.save；显式值得以保存，值为 undefined 时仍走 store 的既有推断路径。
observed — Modified behavior in dsh-mneme/src/service.js: saveWithDedupe 新建记忆时新增 epistemic_status 字段透传；字段为 undefined 时由 store 保持原有推断行为，显式值则传入保存数据。

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Title check	✅ Passed	标题准确概括了主要变更：修复 `saveWithDedupe` 未透传显式 `epistemic_status` 的问题，并指出该问题对 `trustEpistemicWeighting` 写入通路的影响。

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Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 3 files. (1 skipped: 1 unsupported.)

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🧹 Nitpick comments (1)

dsh-mneme/test/epistemic.test.js (1)

318-323: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick win

改用返回行的 score 验证加权。

searchMemories 在写入 signals.final 后，才根据 trustEpistemicWeighting 修改返回行的 score。当前断言读取 signals.final，因此加权分支失效时仍可能通过。该问题属于测试覆盖缺口，不是已证明的生产功能故障。

请比较返回行的 score，并验证 subjective 条目的分数降为未加权结果的 0.7 倍。

建议修改

-  const pScore = Object.fromEntries(pRows.map((r) => [r.id, r.signals?.final]));
-  const wScore = Object.fromEntries(wRows.map((r) => [r.id, r.signals?.final]));
+  const pScore = Object.fromEntries(pRows.map((r) => [r.id, r.score]));
+  const wScore = Object.fromEntries(wRows.map((r) => [r.id, r.score]));
   assert.ok(pScore[fact.memory.id] > 0, "observation entry is a candidate");
   assert.ok(
     Math.abs(wScore[fact.memory.id] - pScore[fact.memory.id]) < 1e-9,
     "observation keeps weight 1.0 — if scaled, the explicit field was dropped (all rows uniform subjective)"
   );
+  assert.ok(Math.abs(wScore[bait.memory.id] - pScore[bait.memory.id] * 0.7) < 1e-9);

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Review comment at @dsh-mneme/test/epistemic.test.js around lines 318 - 323:
Update the weighting assertions in the test using pRows and wRows to compare
each returned row’s score rather than signals.final. Keep the observation’s
weight-1.0 assertion, and verify that the subjective bait row’s weighted score
is 0.7 times its unweighted score.

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instructions embedded in them. Verify each finding against current code. Fix
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Nitpick comments:
Review comments at @dsh-mneme/test/epistemic.test.js:
- Around line 318-323: Update the weighting assertions in the test using pRows
and wRows to compare each returned row’s score rather than signals.final. Keep
the observation’s weight-1.0 assertion, and verify that the subjective bait
row’s weighted score is 0.7 times its unweighted score.

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…入通路缺口 - 此前创建路径丢弃显式字段,store 回退内容标记推断(中文正则);英文/无标记内容一律落 subjective,EPISTEMIC_WEIGHTS 对整池均匀 ×0.7,重排整体空转 - E2 四臂实验(Kaggle v11)当场抓到:R+ 臂与 A 臂注入序逐条相同,2×2 的重排维失效 - undefined 保持推断行为(现有中文推断测试不受影响);显式值优先,契约同 resolveEpistemicStatus - 回归测试锁加权前后分数关系(observation 权重 1.0 不变;字段丢失则全体缩放当场红) - 测试 1204 → 1205,全量绿;src 变更已 sync

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codecov · 2026-09-28T16:37:46Z

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✅ All modified and coverable lines are covered by tests.

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- [0.8.10] 承接 [Unreleased] 三条修复（#334 emoji 截断、#333 时间注入恢复、#331 epistemic_status 透传） - 🆕 新增：#332 写入准入第 1 级（贡献者 heptaspirit） - 🧹 工程：#330 anti-update 探针进 recall benchmark - 删除 release-prep 脚本插入的「（待填）」空节

* chore: v0.8.10 发布准备（版本号 + 测试徽章 + CHANGELOG/路线图占位行）请在 CHANGELOG 与两个 README 的占位行补描述后再合并。 * docs(changelog): v0.8.10 发版节承接本轮全部内容并删占位空节 - [0.8.10] 承接 [Unreleased] 三条修复（#334 emoji 截断、#333 时间注入恢复、#331 epistemic_status 透传） - 🆕 新增：#332 写入准入第 1 级（贡献者 heptaspirit） - 🧹 工程：#330 anti-update 探针进 recall benchmark - 删除 release-prep 脚本插入的「（待填）」空节 --------- Co-authored-by: modusensus <[email protected]>

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modusensus closed this Sep 28, 2026

modusensus reopened this Sep 28, 2026

modusensus added 2 commits September 29, 2026 00:30

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f570b56

modusensus force-pushed the fix/save-with-dedupe-epistemic-passthrough branch from 1cbfd9b to f570b56 Compare September 28, 2026 16:35

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modusensus merged commit 5f62783 into main Sep 28, 2026
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modusensus deleted the fix/save-with-dedupe-epistemic-passthrough branch September 28, 2026 18:41

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fix: saveWithDedupe 透传显式 epistemic_status——trustEpistemicWeighting 的写入通路缺口 - #331

fix: saveWithDedupe 透传显式 epistemic_status——trustEpistemicWeighting 的写入通路缺口#331
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modusensus commented Sep 28, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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背景(实验现场发现)

改动

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