docs: replace vague provenance prose with recorded facts

2026-08-09 15:35:02 +08:00
parent 8c124f84b6
commit 9704749b01
380 changed files with 946 additions and 874 deletions
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/proposed/feature/2026-07-06-recallable-compaction.md
-2026-07-06-recallable-compaction.md: ed5491e642ea7ac99fd9f4ba071a61e655f968d3
-2026-07-06-recallable-compaction.zh.md: dabc606d0056e91f9ac473de6f166083bcee25e8
+2026-07-06-recallable-compaction.md: 6f7baedeaae0038b7f5106cd5fc4e23bdfbbd8dd
+2026-07-06-recallable-compaction.zh.md: cbf8b4a3843ca35647cc569255dfe9d26b45b988
@@ -6,7 +6,7 @@ English | [中文](2026-07-06-recallable-compaction.zh.md)

 ## Problem

-Compaction is a one-way door. The summary the model sees carries no reference to what it shadows — the `shadowedRange` provenance lives only on the log-only `compact/summary` event — and no tool lets the model read a shadowed span back. Whatever the summarizer drops is gone from the model's reachable world, even though the append-only log holds every byte. Repeated compaction compounds this: the head checkpoint is rewritten every pass, so the request prefix takes a full prompt-cache miss each time, and earlier summaries are re-summarized generation after generation.
+Compaction is irreversible from the model's current context. The summary the model sees carries no reference to what it shadows — `shadowedRange` lives only on the log-only `compact/summary` event — and no tool lets the model read a shadowed span back. Whatever the summarizer drops is unavailable to the model, even though the append-only log holds every byte. Repeated compaction compounds this: the head checkpoint is rewritten every pass, so the request prefix takes a full prompt-cache miss each time, and earlier summaries are re-summarized generation after generation.

 The root cause is one artifact playing two conflicting roles. An **index** wants to be frozen, chronological, and cheap; the model's **working memory** wants a global view, re-prioritization, and mutability. A single summary can be neither well.

@@ -22,7 +22,7 @@ Newly stale history splits into chunks by deterministic policy: accumulate towar

 - two or three lines of what happened;
 - a keyword line of low-frequency literal anchors — exact error strings, values, config keys — grouped by kind;
- a code-composed footer: `[checkpoint c<summarySeq>: shadows conversation span #<start>–#<end>; originals retrievable via history_read]`. Pointers are assembled from provenance, never model-authored.
+- a code-composed footer: `[checkpoint c<summarySeq>: shadows conversation span #<start>–#<end>; originals retrievable via history_read]`. Code assembles these pointers from the `compact/summary` seq and `shadowedRange`; the model never writes them.

 A committed stub is never rewritten and never re-enters a later compaction region. A stub call's input is layered: the fixed preamble and the byte-identical pass-start state checkpoint (the shared prefix across all calls in the phase), then the keyword lines of all previously committed stubs — so a new entry indexes what is distinctive to its chunk instead of repeating the directory — the one or two most recent committed stubs for chronological continuity, and the slice itself. Sibling stubs from the same pass are not inputs (the concurrent phase forbids it; turn-aligned boundaries carry local continuity instead), and the state checkpoint is background only, never material to summarize into the stub. A slice consisting of recalled content is stubbed by code alone — a pointer line, no LLM call. A failed stub call degrades the same way: its slice gets a code-only pointer stub and the pass continues, making the state rewrite the only hard LLM dependency in a pass.

@@ -46,7 +46,7 @@ A new package `@deepseek-ai/dsh-tool-recall` (consumer-only, over the `dsh-sessi
 - `history_read(checkpoint, offset?)` — renders the shadowed span of any checkpoint in the log, including superseded ones, as `User:`/`Assistant:`/`Tool result:` transcript, paginated by a configured budget with a continuation cursor.
 - `history_search(query, checkpoint?, limit?)` — case-insensitive literal scan over every shadowed span; returns snippets with checkpoint ids and coverage metadata (`scanned`/`matched`/`truncated`). The zero-match hint notes the scan is literal and points at direct `history_read` of a plausible checkpoint.

-Both read `exec.agent.session.events` (the tool-todo access pattern; non-agent callers rejected), render only surface-type message events, and return ordinary `tool/result`s — recalled bytes land at the context tail, logged, so reconstructability holds with no special casing. There is no new storage and no sidecar index: the session log is the archive, `compact/summary` provenance is the index metadata, and the tools are a read path over both. The tool schemas and the package's one system-prompt section are static strings; checkpoint ids reach the model only through footers. The transcript renderer moves from `compact-basic` into `dsh-session`, shared by summarizer and tools.
+Both read `exec.agent.session.events` (the tool-todo access pattern; non-agent callers rejected), render only surface-type message events, and return ordinary `tool/result`s — recalled bytes land at the context tail, logged, so reconstructability holds with no special casing. There is no new storage and no sidecar index: the session log stores the content, `compact/summary.shadowedRange` and `shadowedSeqs` identify what each checkpoint replaced, and the tools read both. The tool schemas and the package's one system-prompt section are static strings; checkpoint ids reach the model only through footers. The transcript renderer moves from `compact-basic` into `dsh-session`, shared by summarizer and tools.

 ### Cache and cost

@@ -94,7 +94,7 @@ Specified during review, deferred until observation calls for them:
 ## Acceptance criteria

 - Auto-compaction over a long session yields `[stubs…][state][tail]` after every completed pass; prior stubs stay byte-identical across passes; committed stubs never fall inside a later region; the superseded state checkpoint folds without a tombstone, renders labeled, and stays reachable and searchable through the two-hop chain.
- Every checkpoint's surface text ends with the deterministic footer; footers round-trip through replay byte-identically; the state checkpoint's provenance records its wider input range.
+- Every checkpoint's surface text ends with the deterministic footer; footers round-trip through replay byte-identically; the state checkpoint's `shadowedRange` records its wider input range.
 - Nothing commits before all summaries exist and the guard passes on like-for-like accounting; a guard failure commits nothing and does not fail the turn; a mid-commit kill resumed at the next pre-step completes the pass with the state region committed unconditionally, merge base read from the log; a legacy head checkpoint is adopted as state-class.
 - `history_read` renders any logged checkpoint's span under budget with a working cursor; `history_search` covers every shadowed span with checkpoint-id snippets and coverage metadata, asserted in particular by finding content that exists only in a span shadowed by a superseded state checkpoint — the regression pin for trailing-slice reachability; both reject non-agent callers and never-existing ids or orphaned `compact/start` with typed errors; recalled content appears as ordinary `tool/result`s; request-reconstruction invariants pass over sessions with compaction plus recall; one keyless snapshot scenario covers compact-then-recall end to end; tool schemas and the prompt section are byte-identical across passes.
 - On the long-horizon bench suite: task success does not regress against `compact-basic` at equal budgets; a handoff-fidelity probe (restate K known decisions and constraints after a pass) scores no worse; recall usage frequency and hit usefulness are reported per run via the dsh bench report pipeline, alongside the stub-directory attention measurement and cache-hit telemetry.
@@ -6,7 +6,7 @@ Status: proposed

 ## 问题

-压缩（compaction）是一扇单向门。模型看到的摘要没有指向被其遮蔽内容的引用，因为 `shadowedRange` 来源只存在于仅写入日志、模型不可见的 `compact/summary` 事件上，也没有工具能让模型重新读取被遮蔽的区段。即使仅追加日志仍保存每一个字节，摘要器丢弃的内容也会离开模型可触达的世界。重复压缩会进一步放大问题：每一轮都会重写头部检查点，因此请求前缀每次都会完全失去提示词缓存命中，而更早的摘要也会一代又一代地被重新摘要。
+压缩（compaction）对模型的当前上下文不可逆。模型看到的摘要没有指向被其遮蔽内容的引用，因为 `shadowedRange` 只存在于仅写入日志、模型不可见的 `compact/summary` 事件上，也没有工具能让模型重新读取被遮蔽的区段。即使仅追加日志仍保存每一个字节，摘要器丢弃的内容也对模型不可用。重复压缩会进一步加重这些结果：每一轮都会重写头部检查点，因此请求前缀每次都会完全失去提示词缓存命中，而更早的摘要也会在后续每一轮中重新生成摘要。

 根本原因是一个产物承担了两个互相冲突的角色。**索引** 需要冻结、按时间排序且成本低廉；模型的**工作记忆** 则需要全局视图、重新确定优先级并且可变。单一摘要无法同时胜任两者。

@@ -22,7 +22,7 @@ Status: proposed

 - 用两三行说明发生了什么；
 - 用一行关键词记录低频字面锚点，例如确切的错误字符串、值和配置键，并按类别分组；
- 由代码组装页脚：`[checkpoint c<summarySeq>: shadows conversation span #<start>–#<end>; originals retrievable via history_read]`。指针根据来源组装，绝不由模型编写。
+- 由代码组装页脚：`[checkpoint c<summarySeq>: shadows conversation span #<start>–#<end>; originals retrievable via history_read]`。代码根据 `compact/summary` seq 和 `shadowedRange` 组装这些指针，模型绝不会编写它们。

 已经提交的存根永不重写，也绝不再次进入之后的压缩区域。存根调用采用分层输入：固定前导内容与逐字节相同的本轮开始状态检查点（该阶段所有调用共享的前缀）；随后是先前所有已提交存根的关键词行，使新条目索引其分片的独特内容，而不是重复整个目录；再加最近一两个已提交存根以维持时间连续性；最后是切片本身。同一轮中的同级存根不作为输入，因为并发阶段禁止这种依赖，而与轮次对齐的边界已经维持局部连续性。状态检查点只作为背景，绝不能成为存根需要总结的材料。完全由回溯内容构成的切片只通过代码生成存根，即只写一行指针，不调用 LLM（大语言模型）。存根调用失败时采用相同降级方式：其切片获得一个仅由代码生成的指针存根，本轮继续执行，使状态重写成为一轮中唯一的强制 LLM 依赖。

@@ -46,7 +46,7 @@ Status: proposed
 - `history_read(checkpoint, offset?)`：把日志中任意检查点（包括已被取代的检查点）遮蔽的区段渲染为 `User:`／`Assistant:`／`Tool result:` transcript（文本记录），并按配置预算分页，提供续传游标。
 - `history_search(query, checkpoint?, limit?)`：对每个被遮蔽区段进行不区分大小写的字面量扫描；返回带检查点 id 的片段与覆盖元数据（`scanned`／`matched`／`truncated`）。零匹配提示会说明扫描按字面量执行，并建议对可能的检查点直接使用 `history_read`。

-两个工具都读取 `exec.agent.session.events`（沿用 tool-todo 访问模式；拒绝非 agent（智能体）调用方），只渲染表面类型的消息事件，并返回普通 `tool/result`：回溯字节会进入上下文尾部并记录到日志，因此无需特殊处理即可满足可重建性。系统不增加新存储或伴随索引：会话日志是归档，`compact/summary` 来源是索引元数据，而这些工具是两者之上的读取路径。工具 schema 与该包唯一的系统提示词章节都是静态字符串；检查点 id 只会通过页脚抵达模型。transcript 渲染器从 `compact-basic` 移入 `dsh-session`，供摘要器与工具共享。
+两个工具都读取 `exec.agent.session.events`（沿用 tool-todo 访问模式；拒绝非 agent（智能体）调用方），只渲染表面类型的消息事件，并返回普通 `tool/result`：回溯字节会进入上下文尾部并记录到日志，因此无需特殊处理即可满足可重建性。系统不增加新存储或伴随索引：会话日志存储内容，`compact/summary.shadowedRange` 和 `shadowedSeqs` 指明每个检查点替换了什么，这些工具读取两者。工具 schema 与该包唯一的系统提示词章节都是静态字符串；检查点 id 只会通过页脚抵达模型。transcript 渲染器从 `compact-basic` 移入 `dsh-session`，供摘要器与工具共享。

 ### 缓存与成本

@@ -94,7 +94,7 @@ Status: proposed
 ## 验收标准

 - 长会话自动压缩后，每一轮完成时都会得到 `[stubs…][state][tail]`；先前存根在各轮之间保持逐字节相同；已提交存根绝不落入后续区域；被取代的状态检查点无需墓碑即可折入历史，渲染时带有标签，并可通过两跳链路触达和搜索。
- 每个检查点的表面文本都以确定性页脚结束；页脚通过回放逐字节往返；状态检查点的来源记录其更宽的输入范围。
+- 每个检查点的表面文本都以确定性页脚结束；页脚通过回放逐字节往返；状态检查点的 `shadowedRange` 记录其更宽的输入范围。
 - 在全部摘要就绪且保护逻辑通过同类核算前，不提交任何内容；保护失败不会提交任何内容，也不会让轮次失败；提交中途被终止后，下一次 pre-step 会恢复处理，从日志读取合并基线，并无条件提交状态区域以完成本轮；旧版头部检查点会被视为状态类。
 - `history_read` 在预算内渲染任意已记录检查点的区段，并提供可用游标；`history_search` 覆盖每个被遮蔽区段，返回带检查点 id 的片段与覆盖元数据，测试尤其要能找到只存在于被已取代状态检查点遮蔽区段中的内容，这是锁定尾随切片可达性的回归用例；两个工具都会拒绝非 agent 调用方，并对从未存在的 id 或遗留 `compact/start` 返回类型化错误；回溯内容作为普通 `tool/result` 出现；请求重建不变量会在同时包含压缩与回溯的会话上通过；一项无密钥快照场景端到端覆盖先压缩再回溯；工具 schema 与提示词章节在各轮之间逐字节相同。
 - 在长时间跨度 bench 套件中：任务成功率在预算相同的条件下不低于 `compact-basic`；交接保真探针（在一轮后重新陈述 K 项已知决策和约束）的得分不降低；每次运行都通过 dsh bench 报告流水线汇报回溯使用频率和命中有效性，并同时报告存根目录注意力度量与缓存命中遥测。
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/proposed/feature/2026-07-08-interactive-side-sessions.md
-2026-07-08-interactive-side-sessions.md: dfd325babe215782c9c1cbec3fd9f874783af7ab
-2026-07-08-interactive-side-sessions.zh.md: a1441cfe12df933855c7b9fe08c5e09f9e6107d3
+2026-07-08-interactive-side-sessions.md: 228380ca2d3d7b2efeb37e713574e1863ce17f38
+2026-07-08-interactive-side-sessions.zh.md: f4e3bfdddff16fe687f2637b3626e7e1382eba61
@@ -6,7 +6,7 @@ English | [中文](2026-07-08-interactive-side-sessions.zh.md)

 ## Problem

-A user may want to explore a question from a live session without changing its main context. Existing primitives do not expose that product shape: [session-store fork](../../implemented/feature/2026-06-30-session-store-fork-api.md) creates an unattached session, while [fork subagents](../../implemented/feature/2026-06-21-subagent-capability-seam.md) are model-driven tasks whose transcript collapses into one tool result. Neither gives the user a separate conversation, and neither records a conclusion back into the parent with provenance.
+A user may want to explore a question from a live session without changing its main context. Existing primitives do not expose that product shape: [session-store fork](../../implemented/feature/2026-06-30-session-store-fork-api.md) creates an unattached session, while [fork subagents](../../implemented/feature/2026-06-21-subagent-capability-seam.md) are model-driven tasks whose transcript collapses into one tool result. Neither gives the user a separate conversation, and neither records a conclusion in the parent together with the side session that produced it.

 ## Proposal

@@ -23,7 +23,7 @@ Rewind productization, session-tree views, a model-facing side-session tool, and

 - **Use the subagent seam:** rejected because side sessions are user-driven, client-visible, and may outlive a parent turn; subagents are model-driven runs returning one tool result.
 - **Change the child system prompt:** rejected by default because any byte change invalidates the prefix cache from token zero. Deployments may still prefer that stronger separation.
- **Add `sidechat/*` events:** deferred because a sourced `context/message` already provides durability, provenance, and replay. A dedicated event is justified only by a surface that needs distinct rendering.
+- **Add `sidechat/*` events:** deferred because a sourced `context/message` already records the content, producer, and replay input durably. A dedicated event is justified only by a surface that needs distinct rendering.
 - **Bind a protocol surface now:** rejected because current UIs are client-owned. Live presentation must eventually derive from the durable message so replay renders the same record.

 ## Acceptance criteria
@@ -6,7 +6,7 @@ Status: proposed

 ## 问题

-用户可能希望在不改变当前会话主上下文的前提下，探索一个来自活跃会话的问题。现有原语无法提供这种产品形态：[会话存储 fork](../../implemented/feature/2026-06-30-session-store-fork-api.md)创建的是一个无关联的会话，而 [fork subagent](../../implemented/feature/2026-06-21-subagent-capability-seam.md)是模型驱动的任务，其 transcript（文本记录）会折叠为一条工具结果。两者都不能给用户一个独立的对话，也都不能将结论带着出处信息记录回父会话。
+用户可能希望在不改变当前会话主上下文的前提下，探索一个来自活跃会话的问题。现有原语无法提供这种产品形态：[会话存储 fork](../../implemented/feature/2026-06-30-session-store-fork-api.md)创建的是一个无关联的会话，而 [fork subagent](../../implemented/feature/2026-06-21-subagent-capability-seam.md)是模型驱动的任务，其 transcript（文本记录）会折叠为一条工具结果。两者都不能给用户一个独立的对话，也都不能在父会话中同时记录结论和产生该结论的侧会话。

 ## 提案

@@ -23,7 +23,7 @@ Status: proposed

 - **使用 subagent seam：** 否决。侧会话是用户驱动的、客户端可见的，且可能存活超过父会话的一个轮次；subagent 是模型驱动的运行，返回一条工具结果。
 - **修改子会话的系统提示词：** 默认否决，因为任何字节变化都会从第零个 token 起使前缀缓存失效。部署方仍可选择这种更强的隔离方式。
- **新增 `sidechat/*` 事件：** 延后。插件来源的 `context/message` 已提供持久性、出处与回放能力；只有当某个界面需要差异化渲染时，专用事件才有正当理由。
+- **新增 `sidechat/*` 事件：** 延后。已标注来源的 `context/message` 已经持久记录内容、生产方和回放输入；只有当某个界面需要差异化渲染时，专用事件才有正当理由。
 - **现在就绑定一个协议界面：** 否决。当前 UI 由客户端拥有。实时呈现最终必须从持久消息派生，以使回放渲染出相同的记录。

 ## 验收标准