0liveiraaa · 0liveiraaa · Aug 16, 2026 · Aug 16, 2026
diff --git a/README.md b/README.md
@@ -35,6 +35,7 @@ DeepseekCotexplorations/
 | 上传者 ID | 研究主题 | 文件夹 | 环境摘要 |
 |---|---|---|---|
 | xiaobright | DeepSeek V4 在 DSH 各 preset 下的能力与触发机制 | [`xiaobright-deepseek-v4-harness`](./contributions/xiaobright-deepseek-v4-harness/) | DSH commit 47f9438 · Windows 11 + WSL 24.04 · DeepSeek 官方 API · deepseek-v4-pro/flash · minimal/standard/PTC/anchored-standard |
+| MolecularFullerene | DSH 首请求工具 schema 2×2 消融与 Request #2 协议 pilot | [`molecularfullerene-dsh-schema-ablation`](./contributions/molecularfullerene-dsh-schema-ablation/) | DSH 0.1.0-rc.5 / 47f9438 · macOS 26.5.2 arm64 · DeepSeek 官方 API · deepseek-v4-pro · exact Minimal + 自建 2×2 surface |
 | 1127353621zxm-netizen | DSH 会话导出（明文 JSONL）与内部存储（zstd 多帧）的格式差异与导入方法 | [`1127353621zxm-netizen-dsh-session-import-export`](./contributions/1127353621zxm-netizen-dsh-session-import-export/) | DSH rc.6 · Windows 11 · opencode go 订阅 · deepseek-v4-pro/flash · 自建 preset · node 22.23.2 |
 | 1127353621zxm-netizen | node 版本与 DSH zstd 会话存储的兼容性（22.14 缺 zstd API 启动崩溃） | [`1127353621zxm-netizen-node-zstd-compat`](./contributions/1127353621zxm-netizen-node-zstd-compat/) | DSH rc.6 · Windows 11 · opencode go 订阅 · deepseek-v4-pro/flash · 自建 preset |
 | 1127353621zxm-netizen | DSH 插件工具 JSON Schema 合规性修复（字段级 required / type:json） | [`1127353621zxm-netizen-deepwrite-schema-fixes`](./contributions/1127353621zxm-netizen-deepwrite-schema-fixes/) | DSH rc.6 · Windows 11 · opencode go 订阅 · deepseek-v4-flash · 自建 preset |

diff --git a/contributions/README.md b/contributions/README.md
@@ -10,3 +10,4 @@
 | 上传者 ID | 研究主题 | 文件夹 | 环境摘要 |
 |---|---|---|---|
 | xiaobright | DeepSeek V4 在 DSH 各 preset 下的能力与触发机制 | [`xiaobright-deepseek-v4-harness`](./xiaobright-deepseek-v4-harness/) | DSH commit 47f9438 · Windows 11 + WSL 24.04 · DeepSeek 官方 API · deepseek-v4-pro/flash · minimal/standard/PTC/anchored-standard |
+| MolecularFullerene | DSH 首请求工具 schema 2×2 消融与 Request #2 协议 pilot | [`molecularfullerene-dsh-schema-ablation`](./molecularfullerene-dsh-schema-ablation/) | DSH 0.1.0-rc.5 / 47f9438 · macOS 26.5.2 arm64 · DeepSeek 官方 API · deepseek-v4-pro · exact Minimal + 自建 2×2 surface |
diff --git a/contributions/molecularfullerene-dsh-schema-ablation/README.md b/contributions/molecularfullerene-dsh-schema-ablation/README.md
@@ -0,0 +1,65 @@
+# DeepSeek V4 Pro：DSH 首请求 Schema 消融与 Request #2 Pilot
+
+- **上传者 ID**：MolecularFullerene
+- **研究主题**：模型可见工具 schema 对首轮轨迹指纹的影响，以及 `reasoning_content` / session header 对第二请求的协议影响
+- **日期**：2026-08-16
+
+## 结果摘要
+
+在固定官方 Minimal system、`contexts=[]`、首请求恰好两个工具、
+`reasoningEffort=max` 的条件下，我们完成了固定样本量的
+persistent/one-shot `bash` × editor/read 2×2 消融，共 40 条成功轨迹。
+
+- persistent `bash`：17/20 为社区分类器的 minimal-like
+- one-shot `bash`：6/20
+- 风险差 +55 个百分点；nominal Fisher 双侧 `p≈0.0011`
+- editor：13/20；read：10/20；Fisher `p≈0.523`
+- 40/40 首动作均合法且任务相关，全部在 executor dispatch 前取消
+
+因此，shell schema bundle 是本轮词法轨迹偏移中最大的观测边际关联；
+file tool 的整体主效应证据较弱。该实验只证明 schema 会改变
+`We need / Let me` 轨迹分布，不证明存在两个离散“人格”，也不证明
+`Let me` 代表能力失败。
+
+另完成 retain/drop `reasoning_content` × same/new session 的四格真实 API
+protocol pilot。四格各 `n=1`，均 HTTP 200 且严格 JSON 正确。它只能排除
+“删除 reasoning_content 必然触发协议拒绝或让简单任务立即失败”的过强说法；
+不能证明 reasoning passback 或 session header 对复杂 agent 任务无影响。
+
+探索性 screening 还观察到 exact Minimal 为 16/20 minimal-like，
+macOS `bash/read` surrogate 为 8/20；该批次在初始 n=3 后看过结果再扩样，
+所以只作为探索性证据。
+
+## 实验环境
+
+| 项 | 值 |
+|---|---|
+| dsh 版本 | `0.1.0-rc.5`, commit `47f943859bef60e4160492346772ded9b24f765a` |
+| 操作系统 | macOS 26.5.2, arm64 |
+| API 来源 | DeepSeek 官方 API |
+| 模型 | `deepseek-v4-pro`, `reasoningEffort=max` |
+| harness / preset | 官方 exact Minimal system；自建 persistent/one-shot bash × editor/read 2×2 surface |
+| 其他 | Node.js v24.18.0；factorial 使用 `max_tokens=256000`；request #2 pilot 使用 4096 |
+| 对照快照 | `dsh-anchored-standard@db4527a2...`; `modeltest@04255b55...` |
+
+模型名为服务端可变 alias，API 未暴露 server build/revision。两个题面与批次、
+identity 和时间仍有共变；报告中的 Fisher p 值为 nominal，不能替代跨任务复现。
+
+## 材料清单
+
+- `reports/FACTORIAL_REPORT.md`：固定样本量 2×2 schema 消融
+- `reports/REQUEST2_PILOT_REPORT.md`：request #2 四格协议 pilot
+- `reports/SCREENING_REPORT.md`：探索性首轮 screening
+- `data/factorial-summary.json`：去标识化分格与效应汇总
+- `data/request2-pilot-summary.json`：四格 protocol/correctness 汇总
+- `data/screening-summary.json`：去标识化探索性汇总
+
+不公开 API key、原始 user/session id、其稳定 hash、完整 reasoning、原始 request
+body、工具调用 ID、绝对路径或 Project2 测试内容。
+
+## 备注
+
+`minimal-like` 是对 `We need / Let me` 等词法特征的轨迹标签，不是能力分数。
+分类口径引用 [`xiaobright/modeltest@04255b55`](https://github.com/xiaobright/modeltest/tree/04255b55f16c4439e538239fb9783070c4165081)，未复制其源码。
+
+实验器实现、统计复核及报告草稿由 OpenAI Codex 辅助；实验运行与公开结论由上传者复核。
diff --git a/contributions/molecularfullerene-dsh-schema-ablation/data/factorial-summary.json b/contributions/molecularfullerene-dsh-schema-ablation/data/factorial-summary.json
@@ -0,0 +1,62 @@
+{
+  "schemaVersion": 1,
+  "study": "first-request-shell-by-file-schema-factorial",
+  "date": "2026-08-16",
+  "model": "deepseek-v4-pro",
+  "provider": "deepseek-official",
+  "harnessCommit": "47f943859bef60e4160492346772ded9b24f765a",
+  "platform": "darwin-arm64",
+  "fixedSurface": {
+    "systemSha256Prefix": "5fab6e32",
+    "contexts": 0,
+    "toolCount": 2,
+    "reasoningEffort": "max",
+    "maxTokens": 256000
+  },
+  "design": {
+    "tasks": 2,
+    "cellsPerTask": 4,
+    "samplesPerCell": 5,
+    "includedTrajectories": 40,
+    "freshSessionPerTrajectory": true,
+    "randomizedWithinTask": true,
+    "toolExecution": "cancelled-before-dispatch"
+  },
+  "outcome": {
+    "primaryDiagnostic": "minimal-like lexical trajectory label",
+    "abilityEndpoint": false,
+    "validFirstAction": "40/40"
+  },
+  "cells": [
+    {"task":"repo-inspection","shell":"persistent","file":"editor","minimalLike":5,"n":5,"meanPromptTokens":1195},
+    {"task":"repo-inspection","shell":"persistent","file":"read","minimalLike":5,"n":5,"meanPromptTokens":704},
+    {"task":"repo-inspection","shell":"one-shot","file":"editor","minimalLike":2,"n":5,"meanPromptTokens":1727},
+    {"task":"repo-inspection","shell":"one-shot","file":"read","minimalLike":3,"n":5,"meanPromptTokens":1236},
+    {"task":"project2","shell":"persistent","file":"editor","minimalLike":5,"n":5,"meanPromptTokens":1683},
+    {"task":"project2","shell":"persistent","file":"read","minimalLike":2,"n":5,"meanPromptTokens":1192},
+    {"task":"project2","shell":"one-shot","file":"editor","minimalLike":1,"n":5,"meanPromptTokens":2215},
+    {"task":"project2","shell":"one-shot","file":"read","minimalLike":0,"n":5,"meanPromptTokens":1724}
+  ],
+  "marginalEffects": {
+    "persistentVsOneShotShell": {
+      "left": "17/20",
+      "right": "6/20",
+      "riskDifference": 0.55,
+      "fisherTwoSidedNominal": 0.0010645539010388843,
+      "blockedExactRandomizationTwoSidedApprox": 0.000196
+    },
+    "editorVsRead": {
+      "left": "13/20",
+      "right": "10/20",
+      "riskDifference": 0.15,
+      "fisherTwoSidedNominal": 0.5231070892917388,
+      "blockedExactRandomizationTwoSidedApprox": 0.413
+    }
+  },
+  "limitations": [
+    "The shell factor changes a complete schema bundle, not only persistence semantics.",
+    "Forty trajectories come from two prompt templates and are not forty independent tasks.",
+    "Model alias exposes no immutable server build identifier.",
+    "The lexical label is diagnostic and is not a task-success score."
+  ]
+}
diff --git a/contributions/molecularfullerene-dsh-schema-ablation/data/request2-pilot-summary.json b/contributions/molecularfullerene-dsh-schema-ablation/data/request2-pilot-summary.json
@@ -0,0 +1,30 @@
+{
+  "schemaVersion": 1,
+  "study": "request2-reasoning-content-by-session-header-protocol-pilot",
+  "date": "2026-08-16",
+  "model": "deepseek-v4-pro",
+  "provider": "deepseek-official",
+  "harnessCommit": "47f943859bef60e4160492346772ded9b24f765a",
+  "platform": "darwin-arm64",
+  "design": {
+    "independentRequest1SourcePerTreatment": true,
+    "samplesPerCell": 1,
+    "mainSamplesRun": 0,
+    "reasoningFactor": ["retain", "drop"],
+    "sessionFactor": ["same", "new"]
+  },
+  "cells": [
+    {"id":"drop-new","reasoning":"drop","session":"new","httpStatus":200,"finishKind":"stop","answerCorrect":true,"request1ReasoningTokens":55,"request2ReasoningTokens":51,"request1StartsWeNeed":true,"request2StartsWeNeed":false,"request2StartsLetMe":false},
+    {"id":"retain-same","reasoning":"retain","session":"same","httpStatus":200,"finishKind":"stop","answerCorrect":true,"request1ReasoningTokens":61,"request2ReasoningTokens":34,"request1StartsWeNeed":true,"request2StartsWeNeed":false,"request2StartsLetMe":false},
+    {"id":"retain-new","reasoning":"retain","session":"new","httpStatus":200,"finishKind":"stop","answerCorrect":true,"request1ReasoningTokens":62,"request2ReasoningTokens":0,"request1StartsWeNeed":true,"request2StartsWeNeed":false,"request2StartsLetMe":false},
+    {"id":"drop-same","reasoning":"drop","session":"same","httpStatus":200,"finishKind":"stop","answerCorrect":true,"request1ReasoningTokens":8,"request2ReasoningTokens":32,"request1StartsWeNeed":true,"request2StartsWeNeed":false,"request2StartsLetMe":false}
+  ],
+  "interpretation": "Drop was protocol-acceptable for this fixture. Ceiling performance at n=1/cell cannot establish null effects on complex tasks.",
+  "excludedFromPublicProjection": [
+    "reasoning text",
+    "request bodies and hashes",
+    "header values and hashes",
+    "user/session identifiers and hashes",
+    "tool-call identifiers"
+  ]
+}
diff --git a/contributions/molecularfullerene-dsh-schema-ablation/data/screening-summary.json b/contributions/molecularfullerene-dsh-schema-ablation/data/screening-summary.json
@@ -0,0 +1,26 @@
+{
+  "schemaVersion": 1,
+  "study": "exploratory-exact-minimal-vs-bash-read-screening",
+  "date": "2026-08-16",
+  "model": "deepseek-v4-pro",
+  "provider": "deepseek-official",
+  "platform": "darwin-arm64",
+  "groups": [
+    {"task":"repo-inspection","surface":"exact-minimal","minimalLike":10,"n":10},
+    {"task":"repo-inspection","surface":"bash-read-surrogate","minimalLike":6,"n":10},
+    {"task":"project2","surface":"exact-minimal","minimalLike":6,"n":10},
+    {"task":"project2","surface":"bash-read-surrogate","minimalLike":2,"n":10}
+  ],
+  "overall": {
+    "exactMinimal": "16/20",
+    "bashReadSurrogate": "8/20",
+    "riskDifference": 0.4,
+    "fisherTwoSidedExploratory": 0.0225,
+    "validFirstAction": "40/40"
+  },
+  "limitations": [
+    "Sample extension from n=3 to n=10 per cell was decided after viewing the initial results.",
+    "The macOS bash/read surface is not the Windows pwsh/read configuration used in the historical 98/99 runs.",
+    "The outcome is a lexical trajectory label, not an ability endpoint."
+  ]
+}
diff --git a/contributions/molecularfullerene-dsh-schema-ablation/reports/FACTORIAL_REPORT.md b/contributions/molecularfullerene-dsh-schema-ablation/reports/FACTORIAL_REPORT.md
@@ -0,0 +1,85 @@
+# V4 Pro 首请求 2×2 Schema 因子消融（2026-08-16）
+
+## 结论摘要
+
+在固定官方 Minimal system、空 runtime context、恰好两个工具的前提下，本轮把首请求目录拆成两个因子：
+
+- shell schema：官方 Minimal persistent `bash` vs Standard one-shot `bash`
+- file schema：`str_replace_editor` vs Standard `read`
+
+固定每个 `题面 × shell × file` cell 为 `n=5`，共 40 条成功轨迹；批次在观察结果前固定样本量，没有中途扩样。以社区既有分类器的 `minimal-like` 标签为诊断终点：
+
+- persistent `bash`：17/20（85%，Wilson 95% CI 64.0%–94.8%）
+- one-shot `bash`：6/20（30%，Wilson 95% CI 14.5%–51.9%）
+- 风险差：+55 个百分点；Fisher 双侧 `p≈0.0011`
+- `editor`：13/20（65%）
+- `read`：10/20（50%）
+- 风险差：+15 个百分点；Fisher 双侧 `p≈0.523`
+
+在这两个固定题面、40 次首轮抽样里，**shell schema bundle 是本 2×2 中最大的观测边际关联；file schema 的整体主效应证据很弱**。这比“工具数越少越好”或“必须是 editor”更精确，但仍然只证明了输出轨迹分布改变，不证明 persistent 机制本身是原因，也不证明模型能力被打开或关闭。
+
+## 设计与完整分格
+
+两个题面分别是英文 repo-inspection 短探针和中文 Project2 V4.1b 正文。四格均保持：
+
+- system 为官方 Minimal 单句，SHA-256 `5fab6e32...`
+- `contexts=[]`
+- 首请求恰好两个真实 DSH tool schemas
+- `reasoning_effort=max`、`max_tokens=256000`
+- 同题面批次共享匿名 user id，每次 fresh session
+- 四格随机交错
+- assistant message 持久化后、任何工具执行前同步取消
+
+运行时间窗为 2026-08-16 18:03–18:07 CST。40 条轨迹均为唯一 fresh session，两个题面批次各使用一个固定匿名 identity；模型名称是服务端可变 alias，没有可见的 server build id。
+
+| 题面 | persistent + editor | persistent + read | one-shot + editor | one-shot + read |
+|---|---:|---:|---:|---:|
+| repo-inspection | 5/5 | 5/5 | 2/5 | 3/5 |
+| Project2 | 5/5 | 2/5 | 1/5 | 0/5 |
+| 合计 | 10/10 | 7/10 | 3/10 | 3/10 |
+
+按题面分层，persistent shell 的方向一致：
+
+- repo：10/10 vs 5/10，Fisher 双侧 `p≈0.0325`
+- Project2：7/10 vs 1/10，Fisher 双侧 `p≈0.0198`
+
+`editor` 的 Project2 点估计较高（6/10 vs 2/10），但样本很小且 Fisher `p≈0.170`；repo 上方向相反但更小（7/10 vs 8/10）。所以目前最多称为“file-tool interaction 可能随任务变化”，不能称 editor 已被确认是第二个触发器。
+
+## 不只是“多了 41 token”
+
+四格 prompt token 总量如下：
+
+| 题面 | persistent + read | persistent + editor | one-shot + read | one-shot + editor |
+|---|---:|---:|---:|---:|
+| repo-inspection | 704 | 1195 | 1236 | 1727 |
+| Project2 | 1192 | 1683 | 1724 | 2215 |
+
+结果不随 token 总量单调变化。最醒目的近似 token-match 是 Project2：
+
+- persistent + editor：1683 token，5/5 minimal-like
+- one-shot + read：1724 token，0/5 minimal-like
+
+两者只差 41 token，却相差 100 个百分点。这削弱了“总 context 长度足以解释一切”的说法。不过这个 corner 对比同时更换了 shell 与 file 两套 schema；persistent 与 one-shot 的总体平均 prompt token 又相差 532，所以尚未定位到长度、语义或某个参数字段中的哪一个才是原因。
+
+两种 `bash` 的模型可见接口差别很大：one-shot 版的 description 和 parameters 更长，包含 `description` 必填参数以及 workdir、timeout、background、sandbox/escalation 等控制面；persistent 版基本只要求 command。下一轮应分别对这些字段做增量消融，而不是继续只比较整个 preset。
+
+## 不能从本轮推出什么
+
+40/40 首动作都合法、任务相关，且全部在 executor dispatch 前被 Harness 阻止：
+
+- minimal-like：23/23 首动作有效
+- standard-like：12/12 首动作有效
+- ambiguous：5/5 首动作有效
+
+所以本轮没有观察到 `Let me` 轨迹在首步功能上更差。这个分类器实际上主要识别首行 `We need` 与 `Let me`；五个 ambiguous 全来自 repo + one-shot 条件，也不支持一个普适的严格二元状态。`We need` 是一个对 schema 敏感的轨迹代理变量，不是“启动脑子”的已验证因果按钮。
+
+此外，样本以同一题面内的多次随机抽样为主，不能把 40 次当成 40 个独立任务。普通 Fisher 检验近似假定这些轨迹可交换且近独立；同批次共享匿名 identity，仍可能存在后端路由或时序相关。两个题面又与 identity、batch、时间完全共变，因此不能把二者差异命名为纯 task 主效应。这里报告的 `p` 值均为 nominal，未校正多重比较；分题面和 file-tool 分析只作探索性描述。
+
+## 下一轮最有信息量的实验
+
+1. **真实能力终点**：使用 held-out、多步、只读任务，四种首轮 schema 在首次工具调用后晋升到完全相同的工具面；盲评任务成功率、工具序列、token、时延和成本。
+2. **CoT 回传因果**：对同一个首轮响应 fork request #2，保留/删除 `reasoning_content`，并交叉 same/new session id。DSH 会显式回传带 tool call 的首轮 reasoning，这个普通的 in-context 自条件化解释必须先排除。
+3. **shell 字段消融**：从 persistent schema 逐项加入 one-shot 的 required `description`、workdir、timeout、background、sandbox 等字段，并做等 token padding；定位是语义、参数复杂度还是长度在驱动词法轨迹。
+4. **能力与指纹解耦**：在 schema 固定时随机干预 `We need` / `Let me` 前缀，评分者盲于前缀。只有前缀干预稳定改变任务成绩，才有资格称它为触发器。
+
+可公开的去标识化机器汇总见 `../data/factorial-summary.json`。完整逐次轨迹、模型 reasoning、身份哈希与原始请求元数据仅本地保留，不随研究包公开。