Merge remote-tracking branch 'origin/master' into fix/intent-draft-sync-echo

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# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
# 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
2026-07-25-session-list-browsing-and-manual-order.md: 586995bf459aeaee88672863977f7acf2a7061a3
2026-07-25-session-list-browsing-and-manual-order.zh.md: 432d5167a57d30bc04a0b4faf213e4341f07bd2f

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# Agent Note: Session List Browsing and Manual Workspace Order
Status: implemented
English | [中文](2026-07-25-session-list-browsing-and-manual-order.zh.md)
## Problem
[Workspace UI Complete Product Flow](2026-07-25-workspace-ui-product-flow.md) shipped the first form of the grouped session list and explicitly scoped out operations such as Rename and drag ordering. The design file (figma 239-10458 and its companion screens) has since filled in those interactions: the list must switch to an ungrouped flat view, session rows need a hover detail card and an action menu, workspaces need renaming, and sessions need manual ordering inside their group.
Two existing mechanisms stood in the way. First, the host durably promoted the active session to the front of its workspace account on every `session/event` (activity pinning), so any manual order would be scrambled by the next activity — two ordering authorities cannot coexist. Second, the browsing area was split across two packages: ui-sidebar owned the list, search, and header rows while ui-workspace only borrowed a picker slot for its popover; every new workspace-domain dialog required cross-package wiring, and ownership grew more twisted with each one.
## Decision
### Flat view and viewing state
The group-by menu offers two modes, WorkSpace / In one list. Flat mode renders every session (fork children included) as a top-level row, strictly newest-first by `updatedAt`, with no parent/child adjacency; the Intent placeholder renders as the first row. The mode choice persists in the browser (`dsh.workspace.view`) across reloads.
### Row interactions
- Session rows show a detail card after a 500ms hover dwell (full title / relative time / status line; the status line has only running/idle until the wire grows a status field). The card and the row menu are mutually exclusive: no card while a menu is open or a drag is in flight.
- Session-row … menu: Rename / Fork session / Delete session, visual-only this iteration; workspace-header … menu: Rename (wired) / Delete workspace (visual-only). Menus close when the pointer leaves them.
- Supporting primitives: `Menu` gains label entries, danger rows, and `closeOnPointerLeave`; a new `HoverCard` (portaled placement, open delay, disabled guard).
### workspace.rename
`workspace.rename({ workspaceId, title })`: the title is trimmed and must be non-blank; both the same-title no-op and the duplicate check evaluate inside the host's serialized workspace-creation chain (shared with create, so concurrent create/rename cannot interleave a duplicate or an out-of-order fake success), and a conflict returns `workspace-name-conflict`. Durability goes through `setTitle`'s mutate path, and the `domain/changed` listener broadcasts the `host/workspace-changed` frame automatically. The UI is a standard modal with a client-side duplicate pre-check.
### Manual order: insertSessionBefore replaces activity pinning
The `session/event` → `touchSession` activity-pinning chain is deleted wholesale; the workspace account order is now manually owned — new sessions prepend at attach, and explicit reordering goes through `workspace.insertSessionBefore({ workspaceId, sessionId, beforeSessionId? })` (DOM insertBefore semantics: with an anchor it inserts before it, omitted appends to the end). The entity throws a typed `WorkspaceMoveInvalidError` only for unaccounted session/anchor ids; the handler maps exactly that to the business code `workspace-move-invalid`, while storage failures stay internal.
The UI is HTML5 drag on root rows inside a group (workspace grouping only, outside search; fork children ride with their parent and are not draggable). Order authority stays entirely host-side: drop only sends the RPC, the client performs zero local reordering, and the view refreshes from the response upsert and the changed frame; a failed move changes nothing. The client's upsert rejects snapshots older (`updatedAt`) than the installed projection so a late unary response cannot roll back a newer frame.
### Shell/region split
ui-sidebar shrinks to the column-geometry shell: brand row, fold state machine, New Session, Settings, and one `sidebar.workspaces` hole; the shell↔region contract is two facts, `{ wide, expandSidebar }`. ui-workspace fully owns the browsing region (section header, search, grouped tree and flat list, every workspace dialog, drag) plus its groupBy store; the rail-state search/new-workspace icons belong to the region too and request shell expansion via `expandSidebar()`. The picker splits into the core `WorkspaceCreateFlow` (composed directly inside the region) and the thin `WorkspacePicker` wrapper (still filling ui-conversation's hero slot); the old `sidebar.workspace` picker slot and its declaration-aware deferral are deleted with it.
## Alternatives considered
**Keep activity pinning; treat drag as a transient adjustment** — the manual order would be scrambled by the next session activity, making it a fiction; two coexisting ordering authorities cannot be explained to the user. A middle ground — freeze pinning per workspace after the first drag — adds a state tier with murkier semantics; deleting outright is cleaner.
**Numeric index in the reorder payload** — `{ index }` drifts during the drag window: after the host prepends a new session (e.g. Intent materialization) the same index points at a different row. Anchor-style insertBefore is naturally immune to prepends and filtered projections.
**Optimistic reordering on drop** — client-first reordering needs failure rollback, one more entangled state in the object layer; local/LAN round-trips are millisecond-scale, so waiting for the host response is imperceptible. With a single order authority (trust the host completely), the frontend never invents an order.
**Keep the rename dialog in ui-sidebar (smallest change)** — that is the problem itself: workspace-domain dialogs scattered in a borrowed slot, with each addition (the Delete confirmation is coming) repeating the cross-package wiring. Review first considered moving only the rename modal; the ruling was to give the whole browsing region to ui-workspace and leave the shell geometry-only.
**Keep parent/child adjacency in flat mode** — contradicts strict recency (a child newer than its parent's sibling cannot slot adjacently), and the flat view's purpose is dropping the hierarchy; flattening fully and disabling drag in flat mode (no persistence carrier) is more consistent.
## Consequences
- Manual order is the sole authority over the workspace account: an order the user arranges is never scrambled by activity; the cost is losing float-to-top-on-activity, whose signal now rides the row status dot and time label. The `WorkspaceView.sessionIds` wire contract is reworded to the manual-order semantics.
- The two-fact shell/region contract funnels every future workspace-domain feature (Delete confirmation, cross-group moves, Ungrouped adoption) into the single ui-workspace package; ui-sidebar no longer evolves with session-list features.
- Flat mode supports neither reordering nor a create-in-workspace entry point (switching back to grouped view is required) — an accepted scope reduction.
- Wiring the three session-menu items and workspace Delete, and growing the wire status enum, remain future iterations.
## Testing
Package-level suites cover the derivations (deriveGroups/deriveFlat), row components, both apply registrations and passthroughs, host entity move semantics, and the rename/insertSessionBefore RPC implementations with their fixture stubs; the `apps/web` keyless snapshots regress the assembled application; delivery acceptance additionally runs a 12-item playwright (chromium headless) checklist (grouped default, flat switch and persistence, hover-card appearance and suppression, both menus, the full rename chain, drag persistence) and drives the real host over the wire for rename success / duplicate rejection / `workspace-move-invalid`.

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# Agent Note: Session List Browsing and Manual Workspace Order
Status: implemented
[English](2026-07-25-session-list-browsing-and-manual-order.md) | 中文
## Problem
[Workspace UI 完整产品流](2026-07-25-workspace-ui-product-flow.md)交付了分组 session 列表的首个形态,并把 Rename、拖拽排序等操作明确划出当期范围。设计稿(figma 239-10458 及关联画面)随后补齐了这些交互:列表要能切换成不分组的平铺视图、session 行悬停要出详情卡与操作菜单、workspace 要能改名、组内 session 要能手动排序。
两条既有机制挡在前面。其一,host 在每条 `session/event` 上把活跃 session durable 地提到 workspace 账本最前(活动置顶),任何手动排序都会被下一次活动打乱——两种排序权威不可调和。其二,浏览区域被劈在两个包里:ui-sidebar 拥有列表、搜索和组头行,ui-workspace 只借一个 picker 坑放弹层;每加一个 workspace 域的对话框都要跨包接线,归属越来越拧。
## Decision
### 平铺视图与浏览态
group-by 菜单提供 WorkSpace / In one list 两种模式。平铺模式把所有 session(含 fork 子)一律作为顶层行,严格按 `updatedAt` 新→旧排序,不保持父子相邻;Intent 占位行渲染在列表首行。模式选择持久化在浏览器(`dsh.workspace.view`),刷新保持。
### 行交互
- session 行悬停 500ms 出详情卡(全名/相对时间/状态行;状态本期只有 running/idle 两态,枚举扩展待 wire 增补 status 字段)。卡片与行菜单互斥:菜单开启或拖拽进行中不出卡。
- session 行 … 菜单:Rename / Fork session / Delete session,本期纯视觉;workspace 组头 … 菜单:Rename(已接线)/ Delete workspace(纯视觉)。菜单鼠标移出即关。
- 支撑件:`Menu` 新增 label 条目、danger 行、`closeOnPointerLeave`;新增 `HoverCard`(portal 定位、开启延时、disabled 守卫)。
### workspace.rename
`workspace.rename({ workspaceId, title })`:title trim 后非空;同名 no-op 与重名查重都在 host 的 workspace 创建串行链内求值(与 create 共链,并发 create/rename 不能穿插出重名或乱序假成功),冲突回 `workspace-name-conflict`。落盘经 `setTitle` 的 mutate 通道,`domain/changed` 监听自动广播 `host/workspace-changed` 帧。UI 为标准 Modal,client 侧另做重名预检。
### 手动排序:insertSessionBefore 取代活动置顶
`session/event` → `touchSession` 活动置顶链整体删除;workspace 账本序改为纯手动拥有——新 session attach 时前插,显式重排走 `workspace.insertSessionBefore({ workspaceId, sessionId, beforeSessionId? })`(DOM insertBefore 语义:锚给了插锚前,缺省 append 到末尾)。实体只对不在账的 session/锚抛类型化的 `WorkspaceMoveInvalidError`,handler 仅把它映射为业务码 `workspace-move-invalid`,存储故障保持 internal。
UI 为组内 root 行的 HTML5 拖拽(仅 workspace 分组、非搜索态;fork 子随父不单独拖)。顺序权威完全在 host:drop 只发 RPC,client 零本地重排,视图靠响应体 upsert 与 changed 帧刷新;失败即无事发生。client 的 upsert 拒绝比已装载投影更旧(`updatedAt`)的快照,防迟到的一元响应回滚更新的帧。
### 壳/区域切分
ui-sidebar 缩为列几何壳:品牌行、折叠状态机、New Session、Settings,以及一个 `sidebar.workspaces` 洞;壳与区域的契约只有两个事实 `{ wide, expandSidebar }`。ui-workspace 全权拥有浏览区域(section header、搜索、分组树与平铺、全部 workspace 对话框、拖拽)及其 groupBy store;rail 态的搜索/新建图标也归区域,经 `expandSidebar()` 请求壳展开。picker 拆为核心件 `WorkspaceCreateFlow`(区域内直接组件组合)与薄包装 `WorkspacePicker`(继续填 ui-conversation 的 hero 坑);原 `sidebar.workspace` picker 坑与声明感知延迟注册随之删除。
## Alternatives considered
**保留活动置顶、拖拽仅作临时调整** —— 手动序在下一次 session 活动即被打乱,形同虚设;两种排序权威并存无法向用户解释。也考虑过「拖过一次即冻结该 workspace 的活动置顶」的折中,状态多一档、语义更难讲,直接删除更干净。
**排序报文用数字下标** —— `{ index }` 在拖拽窗口期会漂移:host 前插新 session(如 Intent 材料化)后同一下标指向别的行。锚点式 insertBefore 对前插与过滤投影天然免疫。
**drop 后乐观重排** —— client 先行重排需失败回滚,对象层多一块纠缠态;本地/局域网往返毫秒级,等 host 响应的简单方案肉眼无感。顺序权威单一化(完全信 host)后,前端永不发明顺序。
**rename 对话框留在 ui-sidebar(最小改动)** —— 正是问题本身:workspace 域的对话框散落在借来的坑里,每加一个(Delete 确认框将至)都重演跨包接线。评审中先议了「只挪 rename Modal」的中间态,最终裁定整个浏览区域归 ui-workspace,壳只留几何。
**平铺模式保持父子相邻成组** —— 与「严格按时间」矛盾(子新于兄则插不进相邻位),且平铺本意就是取消层级;拉平并禁用平铺下的拖拽(无持久化载体)更一致。
## Consequences
- 手动序是唯一的 workspace 账本序权威:用户排好的顺序不再被活动打乱;代价是「最近活跃浮到最上」的行为消失,活跃感知转由行内状态点与时间标签承担。`WorkspaceView.sessionIds` 的 wire 契约随之改为手动序措辞。
- 壳/区域两事实契约把 workspace 域的后续功能(Delete 确认、跨组移动、Ungrouped 收编)全部收进 ui-workspace 单包;ui-sidebar 不再随 session 列表功能演进。
- 平铺模式不支持排序与分组入口(建到指定 workspace 需切回分组视图),是拍板接受的范围收窄。
- session 菜单三项与 workspace Delete 的功能接线、状态枚举扩 wire,留待后续迭代。
## Testing
包级用例覆盖派生(deriveGroups/deriveFlat)、行组件、两处 apply 注册与透传、host 实体移位语义、rename/insertSessionBefore 的 RPC 实现与 fixture 桩;`apps/web` keyless snapshot 回归覆盖装配后的应用;交付验收另以 playwright(chromium headless)过 12 项清单(分组默认、平铺切换与持久化、hover 卡出现与抑制、双菜单、rename 全链、拖拽落盘),并对真 host 直打 wire 验证 rename 成功/重名拒绝/`workspace-move-invalid` 三径。

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# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
# 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
2026-07-25-semantic-pr-label-taxonomy.md: 61b7a829b8c44836cf9c6d0d8a7df463df309d89
2026-07-25-semantic-pr-label-taxonomy.zh.md: cc0c5e7a8953bc97de51f90349a0e2542be5b77e

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# Agent Note: Semantic pull request label taxonomy
Status: implemented
English | [中文](2026-07-25-semantic-pr-label-taxonomy.zh.md)
## Problem
Pull requests need two different signals: what kind of change they make and which repository domains they affect. A flat or broadly named label set conflates those questions, hides work in distinct areas such as `session` and `llm`, and gives reviewers and automation weak inputs.
The repository also gains new domains over time. Treating today's area labels as a closed set would force future work into inaccurate labels or a generic catch-all.
## Decision
Every open or merged pull request carries exactly one kind and every materially affected area. Closed pull requests that were never merged are outside the maintained historical corpus. Other operational labels may coexist, but they do not satisfy either dimension.
### Kinds
| Kind | Meaning |
|---|---|
| `feature` | Adds or intentionally changes behavior. |
| `bug-fix` | Corrects incorrect behavior. |
| `doc` | Makes documentation the dominant intent. |
| `testing` | Changes tests or testing infrastructure without changing product behavior. |
| `cleanup` | Preserves behavior while maintaining or simplifying the implementation or repository process. |
The kind records the change's dominant intent: accompanying tests and documentation do not turn a feature or bug fix into a testing or documentation change.
Areas record semantic repository domains rather than temporary initiatives, ownership, or every path touched incidentally. Area labels are not a hierarchy: a pull request may carry several when it changes distinct contracts, but an umbrella and a narrower label do not both describe the same work.
### Current areas
The 45 current areas are listed below. The group names organize the list for readability; they are not labels or another taxonomy level.
| Group | Areas |
|---|---|
| Agent and model | `agent`, `agent-loop`, `session`, `llm`, `model-context`, `compaction`, `tools`, `persistence` |
| Orchestration | `subagent`, `workflow`, `planning`, `tasks`, `schedule`, `telemetry`, `storage`, `workspace` |
| Capabilities | `bash`, `pty`, `filesystem`, `lsp`, `skills`, `web-search`, `code-mode`, `artifact`, `attachment`, `sandbox`, `mcp`, `hooks`, `cordis` |
| Interfaces | `ui`, `gui`, `tui`, `acp`, `json-rpc`, `cli`, `python-sdk`, `vscode`, `website` |
| Repository and release | `dev-infra`, `ci`, `build`, `dependencies`, `platform`, `i18n`, `release` |
`gui` covers browser and Electron graphical applications, including standalone graphical developer tools; `vscode` remains the editor extension integration. `ui` covers shared cross-interface commands, approval interaction, presentation, and app boot; it coexists with `gui`, `tui`, or a protocol area only when the pull request also changes that shared contract.
`tasks` owns background work tied to a running process, while `schedule` owns durable time-triggered jobs. `tools` owns generic registry, schema, and execution contracts; a concrete capability receives `tools` only when it changes one of those contracts. `attachment` owns durable media references and multimodal input delivery, while `artifact` owns model-declared deliverable identity and preview lifecycle; neither borrows `tools` or `ui` for its implementation parts.
Names follow semantic ownership rather than lexical resemblance. `hooks` means the Claude Code and Codex agent bridges, not local Git hooks; `platform` means product portability, not CI runner selection; and `build` means compilation, bundling, and built package artifacts, not documentation generators.
### Extensibility
The area set is intentionally extensible. Add an area when a recurring, meaningful repository domain is missing; do not add a label for one pull request, a temporary project, a status, or a person or team. Rename, split, or retire an area when the domain model changes, and update this list and the affected open and merged pull requests together.
The kind set stays narrow because kinds are mutually exclusive. A new kind requires a distinct change intent that cannot be represented by the current five; it is not a substitute for an area.
## Alternatives considered
- **One undifferentiated label set.** Rejected because kind and area answer different questions; mixing them makes the presence of one label say nothing about whether the other dimension was considered.
- **A fixed, closed area set.** Rejected because repository domains evolve. A closed set would preserve spelling at the cost of semantic accuracy.
- **One broad `core` area or package-derived labels.** Rejected because domains such as `session`, `llm`, and `agent` remain independently meaningful across package boundaries, while incidental file paths are not the scope reviewers or automation need.
- **Separate browser and desktop areas.** Rejected because browser delivery and Electron packaging expose one graphical client domain; splitting them classifies the delivery shell rather than the semantic work.
- **Broad implementation areas in place of a domain.** Rejected because a durable scheduled job is not a background task, an attachment is not merely its source interface or filesystem implementation, and an artifact is not merely its declaring tool or preview interface.
- **Umbrella and leaf areas for the same contract.** Rejected because duplicate labels inflate scope without adding information. Multiple areas remain correct when a pull request changes genuinely distinct contracts.
- **Exactly one area per pull request.** Rejected because coherent changes can legitimately span several domains, and dropping secondary areas hides affected contracts.
## Consequences
- Reviewers and automation receive one stable intent signal plus a complete semantic scope.
- `gui` queries cover browser and desktop delivery together, while `ui` queries retain only shared cross-interface contracts.
- `schedule`, `attachment`, and `artifact` queries identify those domains directly instead of approximating them through implementation dependencies.
- Selecting labels remains a judgment call: paths and title prefixes can suggest areas, but they cannot replace reading the change.
- Taxonomy changes carry maintenance work. Area additions, renames, splits, and removals update this decision record and backfill open and merged pull requests so historical queries keep their meaning.

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# Agent Note: 语义化 PR 标签分类体系
Status: implemented
[English](2026-07-25-semantic-pr-label-taxonomy.md) | 中文
## 问题
PR(Pull Request)需要传达两个不同的信号:它带来哪一类变更,以及会影响仓库中的哪些领域。一套扁平或命名宽泛的标签会混淆这两个问题,掩盖 `session`、`llm` 等不同领域的工作,也让评审人和自动化流程得到的输入缺乏有效信息。
仓库还会随时间发展出新的领域。如果把当前的领域标签视为封闭集合,未来的工作就只能归入不准确的标签或通用兜底标签。
## 决策
每项开放或已合并的 PR 都带有恰好一个类型标签,以及所有受到实质影响的领域标签。未合并即关闭的 PR 不属于持续维护的历史记录集合。其他管理用途的标签可以并存,但都不能满足这两个维度中的任一个。
### 类型
| 类型 | 含义 |
|---|---|
| `feature` | 新增行为或有意改变行为。 |
| `bug-fix` | 修正错误行为。 |
| `doc` | 以文档变更为主要意图。 |
| `testing` | 修改测试或测试基础设施,但不改变产品行为。 |
| `cleanup` | 在保持行为不变的前提下,维护或简化实现或仓库流程。 |
类型记录变更的主要意图:配套测试与文档并不会把一项功能或缺陷修复变成测试或文档变更。
领域记录仓库中的语义领域,而不是临时项目、归属关系或偶然触及的每条路径。领域标签不构成层级:一项 PR 修改不同契约时可以带有多个领域标签,但不能用一个总括标签和一个较窄标签重复描述同一项工作。
### 当前领域
当前的 45 个领域如下。分组名称仅用于提高列表的可读性;它们既不是标签,也不是分类体系中的另一个层级。
| 分组 | 领域 |
|---|---|
| agent(智能体)与模型 | `agent`, `agent-loop`, `session`, `llm`, `model-context`, `compaction`, `tools`, `persistence` |
| 编排 | `subagent`, `workflow`, `planning`, `tasks`, `schedule`, `telemetry`, `storage`, `workspace` |
| 能力 | `bash`, `pty`, `filesystem`, `lsp`, `skills`, `web-search`, `code-mode`, `artifact`, `attachment`, `sandbox`, `mcp`, `hooks`, `cordis` |
| 接口 | `ui`, `gui`, `tui`, `acp`, `json-rpc`, `cli`, `python-sdk`, `vscode`, `website` |
| 仓库与发布 | `dev-infra`, `ci`, `build`, `dependencies`, `platform`, `i18n`, `release` |
`gui` 涵盖浏览器和 Electron 图形应用,包括独立的图形化开发者工具;`vscode` 仍表示编辑器扩展集成。`ui` 涵盖共享的跨接口命令、审批交互、呈现和应用启动;只有当 PR 还修改这项共享契约时,它才与 `gui`、`tui` 或某个协议领域并用。
`tasks` 负责与运行中进程绑定的后台工作,`schedule` 则负责持久化的定时作业。`tools` 负责通用的注册表契约、schema 契约和执行契约;具体能力只有在修改其中一项契约时才带有 `tools`。`attachment` 负责持久化的媒体引用和多模态输入传递,`artifact` 则负责模型声明的交付物标识和预览生命周期;二者都不会因实现包含工具或界面部分而借用 `tools` 或 `ui`。
标签名称以语义归属为准,而不是词面相似性。`hooks` 指 Claude Code 和 Codex 的 agent 桥接,而不是本地 Git 钩子;`platform` 指产品可移植性,而不是 CI 运行器选择;`build` 指编译、打包和已构建的包(package)产物,而不是文档生成器。
### 可扩展性
领域集合有意保持可扩展。当分类体系缺少一个会反复涉及且具有实际意义的仓库领域时,就新增领域;不要仅为一项 PR、临时项目、状态、个人或团队新增标签。当领域模型发生变化时,重命名、拆分或退役相应领域,同时更新本列表以及所有受影响的开放和已合并 PR。
类型集合保持精简,因为各类型互斥。新增类型的前提是存在一种当前五类无法表达的独立变更意图;类型不能用来替代领域。
## 曾考虑的替代方案
- **一套不区分维度的标签。** 不予采纳,因为类型与领域回答的是不同问题;两者混在一起时,存在一个维度的标签并不表示另一个维度也经过了考虑。
- **一套固定、封闭的领域集合。** 不予采纳,因为仓库领域会持续演变。封闭集合会以牺牲语义准确性为代价来维持拼写不变。
- **一个宽泛的 `core` 领域,或从包结构派生的标签。** 不予采纳,因为 `session`、`llm` 和 `agent` 等领域在跨越包边界时仍各自具有意义,而偶然涉及的文件路径并不是评审人或自动化流程所需的范围信息。
- **为浏览器和桌面端分别设置领域。** 不予采纳,因为浏览器交付和 Electron 打包共同呈现同一个图形客户端领域;拆开二者将按交付形态而非工作的语义进行分类。
- **以宽泛的实现领域替代语义领域。** 不予采纳,因为持久化的定时作业不是后台任务,附件不只是其来源接口或文件系统实现,产物也不只是声明它的工具或预览接口。
- **同一项契约同时使用总括领域与细分领域。** 不予采纳,因为重复标签只会虚增范围,不会增加信息。一项 PR 确实修改不同契约时,多个领域标签仍然合理。
- **每项 PR 恰好一个领域。** 不予采纳,因为一项内聚的变更可以合理地跨越多个领域;省略次要领域会隐藏受影响的契约。
## 后果
- 评审人和自动化流程获得一个稳定的意图信号,以及完整的语义范围。
- `gui` 查询会同时覆盖浏览器与桌面端交付,`ui` 查询则只涵盖共享的跨接口契约。
- `schedule`、`attachment` 与 `artifact` 查询直接对应各自领域,无需通过实现依赖近似归类。
- 选择标签仍然需要判断:路径和标题前缀可以提示领域,但不能替代阅读变更内容。
- 变更分类体系会产生维护工作。新增、重命名、拆分或移除领域时,需要更新本决策记录,并回填开放和已合并的 PR,使历史查询保持原有含义。