docs: replace vague provenance prose with recorded facts
This commit is contained in:
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@@ -2,5 +2,5 @@
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# side as of the last confirmed-consistent state. Both languages carry equal authority;
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# after editing either side, bring the other along and re-record with:
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# pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-07-28-load-pre-identity-session-messages.md
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2026-07-28-load-pre-identity-session-messages.md: 2901527658421b37576bdf5b49e66829104a3b41
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2026-07-28-load-pre-identity-session-messages.zh.md: bf6e58d8a895f41012449a1212533902e1211e99
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2026-07-28-load-pre-identity-session-messages.md: 694bf9ed9ec7a24399b5898665c2222a806f93c6
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2026-07-28-load-pre-identity-session-messages.zh.md: 23f55e1b67f988b6da0ae651f0b53059715eab86
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@@ -28,7 +28,7 @@ The upgrade is read-only. Stored legacy records remain unchanged; a resumed sess
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## Consequences
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Pre-identity JSONL and SQLite sessions resume with their original message content, sources, provider provenance, tool correlation, errors, metadata, and surface replacements. The returned events are otherwise indistinguishable from current imported message snapshots and remain deeply frozen.
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Pre-identity JSONL and SQLite sessions resume with their original message content, sources, assistant provider/model fields, tool correlation, errors, metadata, and surface replacements. The returned events are otherwise indistinguishable from current imported message snapshots and remain deeply frozen.
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This is one explicit same-version import exception, not a general v0 compatibility layer. Adding another exception requires another complete, unambiguous mapping at the persistence boundary; malformed current data continues to fail rather than being guessed into validity. The shared coordinator contract exercises the upgrade against the in-memory reference, JSONL, and SQLite backends, including deterministic reload and tool-result replacement identity.
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@@ -28,7 +28,7 @@ Status: implemented
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## 后果
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消息标识机制引入前的 JSONL 和 SQLite 会话可以恢复，并保留原始的消息内容、来源、提供方溯源信息、工具调用关联、错误、元数据和 surface 替换。除此之外，返回事件与当前导入的消息快照无法区分，并且仍然经过深度冻结。
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消息标识机制引入前的 JSONL 和 SQLite 会话可以恢复，并保留原始的消息内容、来源、assistant 的提供方／模型字段、工具调用关联、错误、元数据和 surface 替换。除此之外，返回事件与当前导入的消息快照无法区分，并且仍然经过深度冻结。
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这是一个显式的同版本导入例外，而非通用的 v0 兼容层。若要增加另一个例外，必须在持久化边界提供另一套完整且无歧义的映射；当前数据若格式错误，系统仍会拒绝，而不会猜测如何将其变成有效数据。共享的协调器约定会在内存参考实现、JSONL 和 SQLite 后端上验证这项升级，包括重新加载时的确定性，以及工具结果替换时的标识继承。
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@@ -2,5 +2,5 @@
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# side as of the last confirmed-consistent state. Both languages carry equal authority;
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# after editing either side, bring the other along and re-record with:
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# pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-07-29-human-transcript-append-origin.md
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2026-07-29-human-transcript-append-origin.md: 9804d3d8d67a4ad00c3d395c2081fd47e03c254a
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2026-07-29-human-transcript-append-origin.zh.md: 030be076bec9c64ffc97957bbc0fc2b6084d2030
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2026-07-29-human-transcript-append-origin.md: fe60ab6e745fdc08d84deb4a6e2e4fe8168a23e8
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2026-07-29-human-transcript-append-origin.zh.md: b8fe6f6e4b9b5298f9d07bdf395e33e33b4a200d
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@@ -6,7 +6,7 @@ English | [中文](2026-07-29-human-transcript-append-origin.zh.md)
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## Problem
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The terminal and the host history gateway both treated the model-visible surface as the human transcript. A successful compaction replaces a surface range with one checkpoint node, so the moment that replacement landed the terminal dropped every message it shadowed — conversation the user had already read — and re-ran that destructive rebuild on any later replacement. The same confusion reached pagination: `maxMessages` counted every `user/message` and `assistant/message` in the window, so a model-only replacement copy consumed a page slot the human never filled, and the cut could land between a compaction's log-only provenance and the replacement that cites it.
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The terminal and the host history gateway both treated the model-visible surface as the human transcript. A successful compaction replaces a surface range with one checkpoint node, so the moment that replacement landed the terminal dropped every message it shadowed — conversation the user had already read — and re-ran that destructive rebuild on any later replacement. The same confusion reached pagination: `maxMessages` counted every `user/message` and `assistant/message` in the window, so a model-only replacement copy consumed a page slot the human never filled, and the cut could land between a compaction's log-only `compact/summary` event and the replacement that cites it.
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Nothing was lost from the log. `Session.events` still held every original message and full tool result; the surface only decides what the model is sent next. The defect was entirely in the projection.
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@@ -18,13 +18,13 @@ The terminal replays the transcript from append-origin surface events and keeps
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A checkpoint is recognized through the compaction seam's own contract — `isCompactCheckpointSource`, the backend-independent marker `CompactService` requires on the replacement user message — so the terminal depends on the declared vocabulary, not on the shape of the replacement. `dsh-session-reference` already consumes that predicate to project another session's log; this is the same question asked by a different reader. Other replacements are silent: a pruned `tool/result` and a regenerated `assistant/message` rewrite one node for the model and mark no boundary in the conversation.
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`session.history` counts only append-origin messages toward `maxMessages`. Each page remains one contiguous raw event range, so a compaction's `compact/summary` provenance stays on the page of the replacement that cites it.
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`session.history` counts only append-origin messages toward `maxMessages`. Each page remains one contiguous raw event range, so a compaction's `compact/summary` event stays on the page of the replacement that cites it.
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No persisted event, RPC envelope, compaction transaction, or model-visible surface changed, and no migration is required.
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## Deferred
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The browser client is fixed separately, in [the web transcript projection note](2026-07-30-web-transcript-log-ordered-projection.md): it projects the same append-origin transcript in log order and renders a marker component, and it closes the pagination hole this change opened — because `session.history` no longer spends quota on the checkpoint, it never cuts on the checkpoint's provenance group, so a page can carry a checkpoint citing a `surfaceOp.start` outside the window, which the browser's surface fold rejected. That hole predates this change (counting could already run past a checkpoint into the range it shadows), but the old rule accidentally covered the case where the checkpoint was the oldest counted message and pulled the whole shadowed range onto its page.
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The browser client is fixed separately, in [the web transcript projection note](2026-07-30-web-transcript-log-ordered-projection.md): it projects the same append-origin transcript in log order and renders a marker component, and it closes the pagination hole this change opened — because `session.history` no longer spends quota on the checkpoint, it never cuts on the checkpoint and its cited source events as a unit, so a page can carry a checkpoint citing a `surfaceOp.start` outside the window, which the browser's surface fold rejected. That hole predates this change (counting could already run past a checkpoint into the range it shadows), but when the checkpoint was the oldest counted message, the old pagination rule happened to include the whole shadowed range on the same page.
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The terminal's [archived live compaction progress decision](../../archived/feature/2026-07-30-compaction-progress-visibility.md) uses standalone bracket events to drive the existing one-cell indicator. It does not change the completion marker owned here or add scale: the checkpoint's `sourceEventSeqs` remain available for a separately justified count or range. Progress therefore needs neither marker-content changes nor a prerequisite `renderReplacement(event)` extraction.
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@@ -6,7 +6,7 @@ Status: implemented
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## Problem
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终端与宿主历史网关都把模型可见的 surface 当作人类可读记录（transcript）。一次成功的压缩（compaction）会用一个检查点节点替换一段 surface 范围，因此该替换一落地，终端就丢弃了它所遮蔽的每条消息——那些是用户已经读过的对话——并在此后任何替换到来时重新执行这次破坏性重建。同样的混淆也波及分页：`maxMessages` 统计窗口内的每个 `user/message` 和 `assistant/message`，于是仅供模型使用的替换副本占用了一个人类从未填充的页面额度，而切分点还可能落在压缩的仅日志溯源信息与引用它的替换之间。
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终端与宿主历史网关都把模型可见的 surface 当作人类可读记录（transcript）。一次成功的压缩（compaction）会用一个检查点节点替换一段 surface 范围，因此该替换一落地，终端就丢弃了它所遮蔽的每条消息——那些是用户已经读过的对话——并在此后任何替换到来时重新执行这次破坏性重建。同样的混淆也波及分页：`maxMessages` 统计窗口内的每个 `user/message` 和 `assistant/message`，于是仅供模型使用的替换副本占用了一个人类从未填充的页面额度，而切分点还可能落在压缩的仅日志 `compact/summary` 事件与引用它的替换之间。
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日志本身没有丢失任何内容。`Session.events` 仍保存着每条原始消息和完整的工具结果；surface 只决定接下来发送给模型的内容。缺陷完全在投影层。
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@@ -18,13 +18,13 @@ Status: implemented
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检查点通过压缩接缝自身的约定来识别——`isCompactCheckpointSource`，即 `CompactService` 要求替换用户消息携带的、与后端无关的标记——因此终端依赖的是已声明的词汇，而不是替换的形态。`dsh-session-reference` 已经在用该谓词投影另一个会话的日志；这里只是另一个读者提出同样的问题。其他替换保持静默：被裁剪的 `tool/result` 与重新生成的 `assistant/message` 只是为模型重写一个节点，并不在对话中标出边界。
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`session.history` 只把追加来源的消息计入 `maxMessages`。每一页仍是一段连续的原始事件区间，因此压缩的 `compact/summary` 溯源信息会与引用它的替换留在同一页。
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`session.history` 只把追加来源的消息计入 `maxMessages`。每一页仍是一段连续的原始事件区间，因此压缩的 `compact/summary` 事件会与引用它的替换留在同一页。
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持久事件、RPC 信封、压缩事务与模型可见的 surface 都没有变化，也不需要迁移。
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## Deferred
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浏览器客户端在[Web 记录投影笔记](2026-07-30-web-transcript-log-ordered-projection.md)中单独修复：它按日志顺序投影同一份 append 来源记录并渲染一个标记组件，同时闭合本次变更打开的分页缺口——因为 `session.history` 不再为检查点消耗额度，它永远不会按检查点的溯源分组切分，于是一页可以携带一个引用了窗口之外 `surfaceOp.start` 的检查点，而浏览器的 surface fold 会拒绝该范围。这个缺口早于本次变更（此前计数就可能越过检查点进入它所遮蔽的范围），但旧规则恰好覆盖了这样一种情形：检查点是最旧的被计数消息，其溯源分组把整段被遮蔽的范围一起拉到该页。
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浏览器客户端在[Web 记录投影笔记](2026-07-30-web-transcript-log-ordered-projection.md)中单独修复：它按日志顺序投影同一份 append 来源记录并渲染一个标记组件，同时闭合本次变更打开的分页缺口——因为 `session.history` 不再为检查点消耗额度，它永远不会在检查点与检查点引用的来源事件这个整体内切分，于是一页可以携带一个引用了窗口之外 `surfaceOp.start` 的检查点，而浏览器的 surface fold 会拒绝该范围。这个缺口早于本次变更（此前计数就可能越过检查点进入它所遮蔽的范围），但当检查点是最旧的被计数消息时，旧分页规则会把整段被遮蔽的范围放在同一页。
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终端的[已归档实时压缩进度决策](../../archived/feature/2026-07-30-compaction-progress-visibility.md)使用独立标记对中的事件驱动现有的单格指示器。它既不改变本文所负责的完成标记，也不添加规模信息：检查点的 `sourceEventSeqs` 仍可供经另行论证的计数或区间使用。因此，进度显示既不需要修改标记内容，也不以提取 `renderReplacement(event)` 为前置条件。
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@@ -2,5 +2,5 @@
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# side as of the last confirmed-consistent state. Both languages carry equal authority;
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# after editing either side, bring the other along and re-record with:
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# pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-07-29-sticky-composer-conversation-scroll.md
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2026-07-29-sticky-composer-conversation-scroll.md: 8657080078e475d6e90f17a6c0f8cb5b2fb1555d
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2026-07-29-sticky-composer-conversation-scroll.md: d628e10979318ba371d56f61c5e96363b4135ad7
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2026-07-29-sticky-composer-conversation-scroll.zh.md: a588903adf51c6fcdd01f851d4f5e6570f695242
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@@ -26,7 +26,7 @@ Chat history prepend follows reader intent through stable rendered node/call ide
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**Keep StatsLine inside ChatView below the message column.** Rejected: outside the sticky composer it would scroll away while the input stayed pinned.
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**Model every browser scroll input source.** Rejected for this narrow fix: the reproduced desktop path uses wheel/trackpad input. Pointer/touch scrolling, native-scrollbar dragging, keyboard scrolling, focus navigation, and nested overflow ownership were left outside the provenance model instead of adding a general input state machine. The [reader-scroll-attribution note](2026-08-06-reader-scroll-attribution-observed-top-ledger.md) later closed this deferral by generalizing attribution through the observed-top ledger, still without an input state machine.
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**Model every browser scroll input source.** Rejected for this narrow fix: the reproduced desktop path uses wheel/trackpad input. Pointer/touch scrolling, native-scrollbar dragging, keyboard scrolling, focus navigation, and nested overflow ownership were left outside the input-source model instead of adding a general input state machine. The [reader-scroll-attribution note](2026-08-06-reader-scroll-attribution-observed-top-ledger.md) later closed this deferral by generalizing attribution through the observed-top ledger, still without an input state machine.
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## Consequences
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@@ -2,5 +2,5 @@
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# side as of the last confirmed-consistent state. Both languages carry equal authority;
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# after editing either side, bring the other along and re-record with:
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# pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-07-30-web-transcript-log-ordered-projection.md
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2026-07-30-web-transcript-log-ordered-projection.md: 3b7aaeb1178ff79e38a1b9646a9dc78efaeae48b
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2026-07-30-web-transcript-log-ordered-projection.zh.md: 024d7dba7db7f06a684f5656abf7421e65cd4536
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2026-07-30-web-transcript-log-ordered-projection.md: dbc3f9e23be9120df62c2b6b7a9d9aba4c3a42a9
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2026-07-30-web-transcript-log-ordered-projection.zh.md: 329392c47d69c4cf3506a5e14ca0ef48d35dce4c
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@@ -18,7 +18,7 @@ Node order is seq-monotonic by construction, and three things follow. The log-on
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`foldDegraded` is gone from `ConversationSnapshot`, and with it the padding sentinels, the `baseSeq` arithmetic they needed, and `degradedSeqs()`. They existed only to satisfy the core fold's `seq === index` assertion and to survive its throw; the fold they describe is no longer run. Deleting the flag is part of the fix, not cleanup after it — `degradedSeqs()` was already almost the log-ordered projection, reached after a thrown error instead of intended.
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The marker's summary text, replaced-item count, and estimated shadowed-token count come from the checkpoint's own `compact/summary` provenance, never from the framed checkpoint payload, which is an instruction envelope written for the model. A window cut that left the provenance outside makes those fields unavailable, the same soft-fall as a call-less tool result, and a later page supplying the provenance resolves them.
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The marker's summary text, replaced-item count, and estimated shadowed-token count come from the checkpoint's cited `compact/summary` event, never from the framed checkpoint payload, which is an instruction envelope written for the model. A window cut that left that event outside makes those fields unavailable, the same soft-fall as a call-less tool result, and a later page supplying the event resolves them.
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The [manual compaction command](../feature/2026-07-30-queued-manual-compaction.md) returns the summary event's seq as the successful `CommandResult.sourceEventSeq`, and `command/done` persists that optional reference. Chat pairs only a successful named `/compact` command whose reference equals exactly one loaded `CompactionSummaryNode.summaryEventSeq`. The running command first renders `compact · Compacting context…`; after the checkpoint lands, the same React key renders one collapsed `compact` disclosure at the checkpoint's flow position with the count and token estimate. Input rejection, no compactable history, cancellation, and failure remain generic command rows with complete handler-authored text. Automatic compaction has no command reference and keeps the standalone context-compacted marker.
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@@ -18,7 +18,7 @@ surface 顺序还让另外两个问题成为结构性的。一次替换之后它
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`foldDegraded` 从 `ConversationSnapshot` 消失，随之消失的是哨兵填充、它们所需的 `baseSeq` 算术，以及 `degradedSeqs()`。它们的存在只为满足核心 fold 的 `seq === index` 断言并在其抛错时存活；它们所描述的 fold 已不再运行。删除该标志是修复的一部分，而非修复之后的清理——`degradedSeqs()` 本身已几乎就是按日志顺序的投影，只是作为抛错后的落点而非本意到达。
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标记的摘要文本、被替换条目数量和估算的被遮蔽 token 数量都来自检查点自己的 `compact/summary` 溯源，绝不取自成框的检查点载荷——那是为模型撰写的指令信封。窗口切分把溯源留在窗口外时这些字段不可用，与无调用的工具结果同一种软退让；后续补上溯源的分页会解析出它们。
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标记的摘要文本、被替换条目数量和估算的被遮蔽 token 数量都来自检查点引用的 `compact/summary` 事件，绝不取自成框的检查点载荷——那是为模型撰写的指令信封。窗口切分把该事件留在窗口外时这些字段不可用，与无调用的工具结果同一种软退让；后续补上该事件的分页会解析出它们。
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[手动压缩命令](../feature/2026-07-30-queued-manual-compaction.md)会把摘要事件的 seq 作为成功结果的 `CommandResult.sourceEventSeq` 返回，`command/done` 则持久化这项可选引用。Chat 只会配对成功且名称为 `/compact`、其引用恰好等于唯一一个已加载 `CompactionSummaryNode.summaryEventSeq` 的命令。运行中的命令先渲染为 `compact · Compacting context…`；检查点落地后，同一个 React key 会在检查点的消息流位置渲染一条收起的 `compact` 展开项，并显示条目数量和 token 估算值。输入被拒绝、没有可压缩历史、取消和失败时仍使用通用命令行，并保留处理器撰写的完整文本。自动压缩没有命令引用，继续使用独立的上下文已压缩标记。
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@@ -2,5 +2,5 @@
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# side as of the last confirmed-consistent state. Both languages carry equal authority;
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# after editing either side, bring the other along and re-record with:
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# pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-08-04-load-pre-react-loop-sessions.md
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2026-08-04-load-pre-react-loop-sessions.md: b7dcad1ff7fe0aa8239ac03f52b50dfa55417515
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2026-08-04-load-pre-react-loop-sessions.zh.md: 9dc8666d301b3baf454079498bf3ad7e1f510c96
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2026-08-04-load-pre-react-loop-sessions.md: 277a481f366f1182fd3948caf858607efd550e5e
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2026-08-04-load-pre-react-loop-sessions.zh.md: 0d21ef1a97c5e841609406b9c8ed4723e6da09b1
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@@ -24,7 +24,7 @@ The importer does not synthesize inbox splices. A resumed pre-react-loop agent b
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**Replay old inbox notifications into durable splices.** Those notifications were not session events and do not provide a trustworthy pending-state snapshot. Inferring insertions without every claim and discard would re-run consumed work.
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**Assign coarse aborted records to an existing caller.** Mapping them to `user`, `parent`, or `hook` would manufacture provenance. A dedicated `legacy` cause keeps the stop classification without making a false audit claim.
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**Assign coarse aborted records to an existing caller.** Mapping them to `user`, `parent`, or `hook` would invent a caller that the old record did not name. A dedicated `legacy` cause keeps the stop classification without making a false audit claim.
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**Rewrite stored JSONL and SQLite records.** A rewrite would violate the append-only contract and require backend-specific atomic migration machinery for a read compatibility boundary.
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@@ -24,7 +24,7 @@ react-loop 简化在保持 `SESSION_FORMAT_VERSION` 为 0 的同时更改了持
|
||||
|
||||
**将旧 inbox 通知回放为持久 splice。** 这些通知不是会话事件，也无法提供可信的待处理状态快照。如果无法获知每一次领取和丢弃，就推断插入操作，会让已消费的工作再次执行。
|
||||
|
||||
**将粗粒度中止记录归因于现有调用方。** 将其映射到 `user`、`parent` 或 `hook` 会虚构来源。专用的 `legacy` 原因既能保留停止分类，也不会产生虚假的审计事实。
|
||||
**将粗粒度中止记录归因于现有调用方。** 将其映射到 `user`、`parent` 或 `hook` 会凭空指定旧记录未注明的调用方。专用的 `legacy` 原因既能保留停止分类，也不会产生虚假的审计事实。
|
||||
|
||||
**重写已存储的 JSONL 和 SQLite 记录。** 重写会违反仅追加约定，并要求为读取兼容边界建立后端专用的原子迁移机制。
|
||||
|
||||
|
||||
@@ -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/implemented/bug-fix/2026-08-05-context-meter-blind-to-compaction.md
|
||||
2026-08-05-context-meter-blind-to-compaction.md: 8f4845c3c9bf52c5c3a2d39dee2ff25bda30c7bd
|
||||
2026-08-05-context-meter-blind-to-compaction.zh.md: 94ada0a9118db63876d5805ef5a8197d9c764102
|
||||
2026-08-05-context-meter-blind-to-compaction.md: 10ded250cec9c92d90803bdf5969cc7f5aa54c50
|
||||
2026-08-05-context-meter-blind-to-compaction.zh.md: 1508a907e6a71b465a2b9aed137f40bb8e539ae5
|
||||
|
||||
@@ -27,7 +27,7 @@ This reverses the "the ring, header, and bar length stay provider-exact" half of
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Project `measure().totalTokens` instead.** The measurement service already composes exactly this (`baseline` anchor plus signed `surfaceDeltaTokens`), and it reacts correctly — measured at 4383 → 304 across the same compaction. But it is a service over private replay state, not a pure fold, and a projection cannot call it. Reproducing its anchor inside a `ProjectionDefinition` needs `_estimateProviderAssistant`'s random access to the chunk provenance (`session.events[seq]`), which `apply(state, event)` does not have. Anchoring on the sampled surface total is the same idea reachable from a pure per-event fold.
|
||||
**Project `measure().totalTokens` instead.** The measurement service already composes exactly this (`baseline` anchor plus signed `surfaceDeltaTokens`), and it reacts correctly — measured at 4383 → 304 across the same compaction. But it is a service over private replay state, not a pure fold, and a projection cannot call it. Reproducing its anchor inside a `ProjectionDefinition` needs `_estimateProviderAssistant`'s random access to the chunk events cited by seq (`session.events[seq]`), which `apply(state, event)` does not have. Anchoring on the sampled surface total is the same idea reachable from a pure per-event fold.
|
||||
|
||||
**Emit a synthetic usage record at the end of compaction.** Would move `pressureTokens` itself, but the only usage compaction holds is the summarization request's own — a different prompt entirely. Recording it as the conversation's prompt size would be a lie in the durable log rather than in one display.
|
||||
|
||||
|
||||
@@ -27,7 +27,7 @@ AFTER compact: ring=4% header=~4227/100000 rows=[system 18, tools 0, messag
|
||||
|
||||
## 备选方案
|
||||
|
||||
**改为投影 `measure().totalTokens`。** 测量服务本来就合成了正是这个量（`baseline` 锚点加有符号的 `surfaceDeltaTokens`），而且反应正确——同一次压缩前后实测为 4383 → 304。但它是一个建立在私有重放状态上的服务，不是纯折叠，投影无法调用它。要在 `ProjectionDefinition` 内部复现它的锚点，需要 `_estimateProviderAssistant` 对分片来源的随机访问（`session.events[seq]`），而 `apply(state, event)` 拿不到。以取样时的表层总量作为锚点，是同一个思路在纯逐事件折叠中可达的版本。
|
||||
**改为投影 `measure().totalTokens`。** 测量服务本来就合成了正是这个量（`baseline` 锚点加有符号的 `surfaceDeltaTokens`），而且反应正确——同一次压缩前后实测为 4383 → 304。但它是一个建立在私有重放状态上的服务，不是纯折叠，投影无法调用它。要在 `ProjectionDefinition` 内部复现它的锚点，需要 `_estimateProviderAssistant` 对按 seq 引用的分片事件进行随机访问（`session.events[seq]`），而 `apply(state, event)` 拿不到。以取样时的表层总量作为锚点，是同一个思路在纯逐事件折叠中可达的版本。
|
||||
|
||||
**在压缩结束时补写一条合成的用量记录。** 这确实能推动 `pressureTokens` 本身，但压缩手上唯一的用量是摘要请求自己的用量——那是完全另一个提示词。把它记成本对话的提示词规模，等于把谎言写进持久日志，而不只是写进某一处展示。
|
||||
|
||||
|
||||
@@ -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/implemented/bug-fix/2026-08-06-reader-scroll-attribution-observed-top-ledger.md
|
||||
2026-08-06-reader-scroll-attribution-observed-top-ledger.md: 2dcd0178e4216d4d3e2edcd3bfcc05b63606c333
|
||||
2026-08-06-reader-scroll-attribution-observed-top-ledger.md: ef5ddbeb9bea1393f474dfb4c809ae2e19bfea5c
|
||||
2026-08-06-reader-scroll-attribution-observed-top-ledger.zh.md: 7a1142cdd793cfce46bfd3908ab28345701aec7a
|
||||
|
||||
@@ -6,7 +6,7 @@ English | [中文](2026-08-06-reader-scroll-attribution-observed-top-ledger.zh.m
|
||||
|
||||
## Problem
|
||||
|
||||
ChatView's bottom-follow recognized only wheel/trackpad gestures as reader input: while pinned to the floor, a scroll event without matching wheel movement was treated as programmatic and snapped back. Touch panning, native-scrollbar dragging, and keyboard paging therefore could not leave the bottom of a streaming transcript — on a phone the tail was effectively locked. That wheel-only provenance was a deliberate deferral in the [sticky-composer note](2026-07-29-sticky-composer-conversation-scroll.md), which rejected a general input state machine "for this narrow fix" and left every other scroll source outside the model.
|
||||
ChatView's bottom-follow recognized only wheel/trackpad gestures as reader input: while pinned to the floor, a scroll event without matching wheel movement was treated as programmatic and snapped back. Touch panning, native-scrollbar dragging, and keyboard paging therefore could not leave the bottom of a streaming transcript — on a phone the tail was effectively locked. That wheel-only input classification was a deliberate deferral in the [sticky-composer note](2026-07-29-sticky-composer-conversation-scroll.md), which rejected a general input state machine "for this narrow fix" and left every other scroll source outside the model.
|
||||
|
||||
## Decision
|
||||
|
||||
@@ -34,4 +34,4 @@ The lane's Chromium cannot synthesize any non-wheel device scrolling, which boun
|
||||
|
||||
## Consequences
|
||||
|
||||
Every reader input owns bottom-follow uniformly, with less code: the wheel listener, its epoch counter, and the pre-input baseline bookkeeping are gone, and attribution rides state the component already maintained. The sticky-composer note's layout, wheel chaining, and prepend-anchoring decisions are untouched and remain authoritative; its narrow provenance rule is superseded by this note. The cost is the contract change above — a coalesced non-React shrink-plus-regrow clamp now pauses follow until the reader returns to the floor or presses Back to bottom — traded for touch, scrollbar, and keyboard correctness during streaming. The e2e lane gains non-wheel coverage only within what its browser can synthesize; if gesture synthesis starts working in a future Chromium, the fling emulation can be replaced by real touch strokes without changing the asserted contract.
|
||||
Every reader input owns bottom-follow uniformly, with less code: the wheel listener, its epoch counter, and the pre-input baseline bookkeeping are gone, and attribution rides state the component already maintained. The sticky-composer note's layout, wheel chaining, and prepend-anchoring decisions are untouched and remain authoritative; its wheel-only input rule is superseded by this note. The cost is the contract change above — a coalesced non-React shrink-plus-regrow clamp now pauses follow until the reader returns to the floor or presses Back to bottom — traded for touch, scrollbar, and keyboard correctness during streaming. The e2e lane gains non-wheel coverage only within what its browser can synthesize; if gesture synthesis starts working in a future Chromium, the fling emulation can be replaced by real touch strokes without changing the asserted contract.
|
||||
|
||||
Reference in New Issue
Block a user