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docs: reserve seam for complete capabilities

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2026-08-09 15:34:32 +08:00
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.agents/notes/proposed/architecture/2026-06-16-typed-event-schemas.i18n.yaml
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@@ -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/architecture/2026-06-16-typed-event-schemas.md
2026-06-16-typed-event-schemas.md: 97a7d0c3787eb5556696e25a6c8b1bb75642aba9
2026-06-16-typed-event-schemas.zh.md: 6d665151a9c5879b3810ae93af8cc6bf5a21727c
2026-06-16-typed-event-schemas.md: d919db18f347d0633155f92bfecc43b8bf846659
2026-06-16-typed-event-schemas.zh.md: 369a70846265035d92bf51fcd516793b648e2f0f

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.agents/notes/proposed/architecture/2026-06-16-typed-event-schemas.md
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@@ -42,7 +42,7 @@ This is a repository-wide vocabulary redesign, not a persistence implementation
Keep the compile-time pattern. Persistence stays opaque-JSON + serializability guard. Plugins extend via declaration merging; correctness of event *shape* is the producer's responsibility and is enforced by TypeScript at compile time. Package-owned invariant companions check selected cross-record relationships when enabled but do not provide general runtime shape schemas.
- **Pros**: zero churn; plugin extension is a one-line `interface` augmentation with full type inference and no runtime registration ceremony; no new runtime dependency; the `defineTool` DSL and `assertNever` exhaustiveness keep working.
- **Cons**: no runtime structural validation at the persistence boundary or at plugin seams; a malformed-but-JSON datum is caught late.
- **Cons**: no runtime structural validation at the persistence boundary or at plugin boundaries; a malformed-but-JSON datum is caught late.
### B. Header/closed-shape validation only (schemastery), events stay opaque
Tighten only the genuinely-closed shapes that already have hand-rolled type guards — e.g. the JSONL `HeaderLine` guard (`isHeaderLine`) — using **schemastery** (the repo's existing schema library, already used for every plugin `static Config`). Leave the merge-extensible event union as-is.
@@ -53,7 +53,7 @@ Tighten only the genuinely-closed shapes that already have hand-rolled type guar
### C. Runtime schema registry for the whole vocabulary (Zod or schemastery)
Replace the merge-extensible maps with a runtime registry the producers contribute to and the persistence/consumer paths validate against.
- **Pros**: real runtime validation at the durable boundary and at plugin seams; one source of truth; enables generic tooling (auto-generated docs, fuzzing, wire-format checks).
- **Pros**: real runtime validation at the durable boundary and at plugin boundaries; one source of truth; enables generic tooling (auto-generated docs, fuzzing, wire-format checks).
- **Cons**: the full blast radius above; **Zod is not currently a direct dependency** (only a transitive dep of `@earendil-works/pi-ai`) and the repo's chosen schema lib is **schemastery** — adopting Zod broadly is itself a dependency decision; declaration-merge ergonomics (one-line plugin extension, full inference) are replaced by runtime registration + manual type wiring; the `assertNever` exhaustiveness guarantee weakens (runtime variants aren't statically exhaustive).
## Proposal

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.agents/notes/proposed/architecture/2026-06-16-typed-event-schemas.zh.md
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@@ -42,7 +42,7 @@ harness 将其核心词汇——内容块、消息来源、结束原因、轮次
保留编译期模式。持久化继续使用不透明 JSON + 可序列化性守卫。插件通过声明合并扩展；事件*形状*的正确性由生产者负责，并由 TypeScript 在编译期保证。启用包自有的不变式 companion 后，它们会检查选定的跨记录关系，但不提供通用运行时形状 schema。
- **优点**：零变动；插件扩展只需一行 `interface` 增补，享有完整类型推断，无需运行时注册仪式；无新运行时依赖；`defineTool` DSL 与 `assertNever` 穷举继续工作。
- **缺点**：持久化边界和插件 seam 处无运行时结构校验；格式错误但仍为合法 JSON 的数据被延迟捕获。
- **缺点**：持久化边界和插件边界处无运行时结构校验；格式错误但仍为合法 JSON 的数据被延迟捕获。
### B. 仅对头部/封闭形状做校验（schemastery），事件仍为不透明
仅对那些已有手写类型守卫的真正封闭形状加以收紧——例如 JSONL 的 `HeaderLine` 守卫（`isHeaderLine`）——使用 **schemastery**（仓库现有的 schema 库，已用于每个插件的 `static Config`）。merge-extensible 事件联合类型保持不变。
@@ -53,7 +53,7 @@ harness 将其核心词汇——内容块、消息来源、结束原因、轮次
### C. 为整个词汇建立运行时 schema 注册表（Zod 或 schemastery）
用运行时注册表替换 merge-extensible map，生产者向其贡献 schema，持久化/消费路径据此校验。
- **优点**：持久化边界和插件 seam 处获得真正的运行时校验；单一真源；可支撑通用工具（自动生成文档、模糊测试、协议格式（wire format）检查）。
- **优点**：持久化边界和插件边界处获得真正的运行时校验；单一真源；可支撑通用工具（自动生成文档、模糊测试、协议格式（wire format）检查）。
- **缺点**：上述全部影响范围；**Zod 目前不是直接依赖**（仅作为 `@earendil-works/pi-ai` 的传递依赖），仓库选定的 schema 库是 **schemastery**——广泛引入 Zod 本身就是一个依赖决策；声明合并的易用性（一行插件扩展、完整推断）被运行时注册 + 手动类型接线取代；`assertNever` 穷举保证弱化（运行时变体在静态层面不可穷举）。
## 提案

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.agents/notes/proposed/architecture/2026-07-19-required-cancellation-through-tool-capability-seams.i18n.yaml
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@@ -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/architecture/2026-07-19-required-cancellation-through-tool-capability-seams.md
2026-07-19-required-cancellation-through-tool-capability-seams.md: c2cfb09f27222136965058695e9b6b706ac688a9
2026-07-19-required-cancellation-through-tool-capability-seams.zh.md: 0544a17629c4fb130bed9ec6c7cae1a15d2211a8
2026-07-19-required-cancellation-through-tool-capability-seams.md: 1909b8451b6c70bde7c67f0cc0c1c3f4db443f7f
2026-07-19-required-cancellation-through-tool-capability-seams.zh.md: 7a9c78c71afe4d51f3d0f46f2cb59fc7cb5bf133

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.agents/notes/proposed/architecture/2026-07-19-required-cancellation-through-tool-capability-seams.md
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@@ -18,7 +18,7 @@ Require an `AbortSignal` on every asynchronous same-process capability operation
Each direct caller supplies a signal it owns or propagates from its own required operation context. Implementations may derive a child deadline or cancellation scope, but the derived signal remains linked to the upstream signal for the delegated lifetime. Capability implementations do not synthesize never-abort signals, use ambient async-local cancellation, or validate `AbortSignal` at runtime solely to repeat the typed same-process contract.
The migration begins with an inventory from every first-party `ToolDefinition.execute()` through the capability calls it awaits. It then changes each coherent interface/implementation/consumer seam together, including tests and generated API documentation. Separate PRs may migrate filesystem, bash/task, web/provider, workflow/subagent, code-runtime, and similar families so each change remains reviewable, but no migrated interface keeps an optional compatibility overload under the repository's pre-release policy.
The migration begins with an inventory from every first-party `ToolDefinition.execute()` through the capability calls it awaits. It then changes each coherent Service Definition / Service provider / Consumer seam together, including tests and generated API documentation. Separate PRs may migrate filesystem, bash/task, web/provider, workflow/subagent, code-runtime, and similar families so each change remains reviewable, but no migrated interface keeps an optional compatibility overload under the repository's pre-release policy.
### Scope boundary

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@@ -18,7 +18,7 @@ Status: proposed
每个直接调用方提供自己持有的信号，或从自身必填的操作上下文继续传递信号。实现可以派生子截止时间或取消作用域，但派生信号在委托期间仍须与上游信号关联。能力实现不得生成永不中止信号、使用环境式异步本地取消，也不得仅为重复类型化同进程约定而在运行时校验 `AbortSignal`。
迁移首先从每个第一方 `ToolDefinition.execute()` 出发，清点其等待的能力调用；随后按内聚的接口／实现／消费方 seam，将测试与生成的 API 文档一并修改。文件系统、Bash 与任务、Web 与提供方、工作流与 subagent、代码运行时等能力族可以通过独立 PR（Pull Request）迁移，以保持每项变更可审查；但根据仓库的预发布原则，已经迁移的接口不得保留可选兼容重载。
迁移首先从每个第一方 `ToolDefinition.execute()` 出发，清点其等待的能力调用；随后按内聚的 Service Definition／Service provider／Consumer seam，将测试与生成的 API 文档一并修改。文件系统、Bash 与任务、Web 与提供方、工作流与 subagent、代码运行时等能力族可以通过独立 PR（Pull Request）迁移，以保持每项变更可审查；但根据仓库的预发布原则，已经迁移的接口不得保留可选兼容重载。
### 范围边界

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.agents/notes/proposed/architecture/2026-07-25-client-settings-locale-theme.i18n.yaml
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@@ -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/architecture/2026-07-25-client-settings-locale-theme.md
2026-07-25-client-settings-locale-theme.md: fdcdcff92fa324803d5f2343f3fc3d9dcca069c7
2026-07-25-client-settings-locale-theme.zh.md: efcbbff3727a7a5ce14ba7273c7d0e826a3e5cbd
2026-07-25-client-settings-locale-theme.md: 961a7d96705095486ed7e4b2044f8f0f4a3cd79c
2026-07-25-client-settings-locale-theme.zh.md: 9c7be340f508f7bb12d1448625232258da412e10

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@@ -55,7 +55,7 @@ root
└─ models (order 10) ui-models 注册
```
Section and item contributions use `ctx.slots.inject()` and do not depend on the client manifest's apply order; localized labels ride the label thunk from the [full-rollout note](../../implemented/architecture/2026-07-30-client-locale-full-rollout.md). The SlotMap types split homes: trigger/header/close/section have their canonical home in the ui-settings contract (the consumers, general and models, both depend on the shell — no cycle); `settings.general.item`'s canonical home is the locale package — it is the lowest common dependency of all item registrants (a settings row always carries copy), while the declarer general's contract is unreachable from locale/ui-theme (it would form a cycle); ui-theme consumes it through a re-export seam.
Section and item contributions use `ctx.slots.inject()` and do not depend on the client manifest's apply order; localized labels ride the label thunk from the [full-rollout note](../../implemented/architecture/2026-07-30-client-locale-full-rollout.md). The SlotMap types split homes: trigger/header/close/section have their canonical home in the ui-settings contract (the consumers, general and models, both depend on the shell — no cycle); `settings.general.item`'s canonical home is the locale package — it is the lowest common dependency of all item registrants (a settings row always carries copy), while the declarer general's contract is unreachable from locale/ui-theme (it would form a cycle); ui-theme consumes it through a re-export outlet.
### Slot declarations are first-class injectable waits

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@@ -55,11 +55,11 @@ root
└─ models (order 10) ui-models 注册
```
section/item contribution 使用 `ctx.slots.inject()`，不依赖 client manifest（元数据清单）的 apply 顺序；本地化 label 走 [全量接入 Note](../../implemented/architecture/2026-07-30-client-locale-full-rollout.md) 的 label thunk。SlotMap 类型分家：trigger/header/close/section 正家在 ui-settings 约定（消费方 general/models 均依赖壳，无环）；`settings.general.item` 正家在 locale 包——它是全部 item 注册方的最低公共依赖（设置行必带文案），而声明方 general 的约定对 locale/ui-theme 不可达（会成环）；ui-theme 经 re-export seam 消费。
section/item contribution 使用 `ctx.slots.inject()`，不依赖 client manifest 的 apply 顺序；本地化 label 走 [全量接入 Note](../../implemented/architecture/2026-07-30-client-locale-full-rollout.md) 的 label thunk。SlotMap 类型分家：trigger/header/close/section 正家在 ui-settings contract（消费者 general/models 均依赖壳，无环）；`settings.general.item` 正家在 locale 包——它是全部 item 注册方的最低公共依赖（设置行必带文案），而声明方 general 的 contract 对 locale/ui-theme 不可达（会成环）；ui-theme 经 re-export 出口消费。
### slot 声明是一等可注入等待对象
`SlotsService.inject()` 直接等待有类型约束的 ledger key；它不会将声明桥接为合成的 `slot:<name>` Cordis 服务。回调会跟随声明撤销与重新声明，而其控制器仍归贡献方插件 fiber 所有；直接向未声明 slot 注册仍会显式报错。这移除了陈旧 disposer 的在位判定机制和容易因拼写错误出错的平行服务命名空间。完整的生命周期与失败约定见 [slot 声明注入决策](../../implemented/architecture/2026-08-05-slot-declaration-injection.md)。
`SlotsService.inject()` 直接等待有类型约束的 ledger key；它不会将声明桥接为合成的 `slot:<name>` Cordis 服务。回调会跟随声明折叠与重新声明，而其控制器仍归贡献方插件 fiber 所有；直接向未声明 slot 注册仍会大声失败。这删除了陈旧 disposer 判在位机器和容易因拼写错误出错的平行服务命名空间。完整的生命周期与失败约定见 [slot 声明注入决策](../../implemented/architecture/2026-08-05-slot-declaration-injection.md)。
### 服务约定
@@ -127,4 +127,4 @@ Locale 内置中文和 English；`setLocale`/`setTheme` 是唯一写入口，未
## 风险
slot 声明与 contribution 的 apply 顺序不固定，所有 section/item 注册方必须使用 `ctx.slots.inject()`，而不能以服务或本地 disposer 作为在位信号。服务事件可能早于行首次渲染，功能行 store 的 init 与 inject attach 都必须从 getter 对齐当前 snapshot。`settings.general.item` 的重复合并副本（locale、ui-theme）与 ui-settings 正家必须逐字一致，漂移即三处一起改。Layout 卸载时必须清理自己设置的全局属性，ThemeService dispose 时必须移除 matchMedia 监听，避免 HMR（热模块替换）后残留。
slot 声明与 contribution 的 apply 顺序不固定，所有 section/item 注册方必须使用 `ctx.slots.inject()`，而不能以服务或本地 disposer 作为在位信号。service event 可能早于行首次渲染，功能行 store 的 init 与 inject attach 都必须从 getter 对齐当前 snapshot。`settings.general.item` 的重复合并副本（locale、ui-theme）与 ui-settings 正家必须逐字一致，漂移即三处一起改。Layout 卸载时必须清理自己设置的全局属性，ThemeService dispose 时必须移除 matchMedia 监听，避免 HMR 后残留。

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.agents/notes/proposed/architecture/2026-07-27-session-projection-and-command-log.i18n.yaml
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@@ -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/architecture/2026-07-27-session-projection-and-command-log.md
2026-07-27-session-projection-and-command-log.md: 2fc463ab6e65998c19b0a0fce186c7eb17dacbf6
2026-07-27-session-projection-and-command-log.zh.md: ef4de5ea924e28c28896558206566639295c4c8e
2026-07-27-session-projection-and-command-log.md: 6c2c8137453d04ba6b631fe7f80a788a639b096b
2026-07-27-session-projection-and-command-log.zh.md: f3370ea2631e9c9904c6fc996c2c8aff698c3830

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@@ -24,7 +24,7 @@ A state-carrying log event MUST carry the complete post-change state, never a ba
### Host projection registry (`dsh-session-projection`, new package)
A light interface package: the merge-extensible type map, the registry service, zod at the boundary. Capability-seam three-way split: domain host plugins contribute, carriers consume, neither knows the other.
A light Service Definition package: the merge-extensible type map, the registry service, zod at the boundary. Capability-seam roles: domain host plugins provide projection units, carriers consume them, and neither knows the other.
What a domain registers is a **state-driven computation unit** — three pure functions plus declarations — never an opaque getter. The framework owns driving it (subscription, watermark, caching, and later checkpointing); the domain owns only the mathematics. Projections serve every business domain (session title, plan, goal, permission, todos); commands are merely one trigger path and hold no special position in this contract.
@@ -147,7 +147,7 @@ Infrastructure first; the three in-flight PRs are left untouched and re-target a
**A live-only overlay hook (`live?(agent, base)`) for plan's pending intent** — rejected: it existed solely because the user's plan *selection* was not in the log. Routing the selection through the standard command channel puts `command/run` on the account, pending becomes a pure replay quantity, and the projection contract stays exactly three pure functions.
**Naming the seam `registerFold`** — superseded by the unit contract: the registered object now genuinely is a fold, but `fold*` in this repo names pure `(events) => state` helper functions while this seam registers a keyed, schema'd, versioned unit. Projection remains the event-sourcing term for the read-model role, and both #587's note title and #497's comments already use it.
**Naming the registration API `registerFold`** — superseded by the unit contract: the registered object now genuinely is a fold, but `fold*` in this repo names pure `(events) => state` helper functions while this registry accepts a keyed, schema'd, versioned unit. Projection remains the event-sourcing term for the read-model role, and both #587's note title and #497's comments already use it.
**Client-side folding (per-domain projection cells with a `fromEvent`)** — rejected after being the second draft: once plan's unit folds two event types, a client cell must duplicate the host's transition logic in the browser — the same fold written twice, evolving separately. Pushing finished values (the title-frame precedent, generalized) keeps one computation site and reduces the client to a generic seq-guarded value store; domains write zero client code.

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@@ -24,7 +24,7 @@ Status: proposed
### host 侧投影注册表（`dsh-session-projection`，新包）
一个轻量的接口包：merge-extensible 类型表、注册表服务、边界上的 zod 校验。能力 seam 三方拆分：领域 host 插件负责贡献，载体负责消费，两侧互不相识。
一个轻量的 Service Definition 包：merge-extensible 类型表、注册表服务、边界上的 zod 校验。能力 seam 的角色如下：领域 host 插件提供投影单元，载体消费这些单元，两侧互不相识。
领域注册的是一个**状态驱动计算单元（state-driven computation unit）**——三个纯函数外加若干声明——绝不是一个不透明的 getter。驱动它是框架的职责（订阅、水位线（watermark）、缓存，以及后续的检查点机制），领域只负责数学本身。投影服务于所有业务领域（会话标题、plan、goal、权限、todos）；命令只是其中一条触发路径，在本约定中没有任何特殊地位。
@@ -58,7 +58,7 @@ declare module 'cordis' {
### 已交付的消费方：subagent 身份单元
注册表的两处既有读法已经服务于本 RFC 协议计划之外的一个已交付消费方：[subagent 列表经投影单元读取身份](../../implemented/architecture/2026-08-06-subagent-list-identity-projection.md)注册了 `subagent` 单元——从 `subagent/descriptor` 按 last-wins 折叠出的持久的 mode/label 身份——`SubagentService.listChildren` 对 live child 经 `snapshot()` 读取（水位线缓存，零日志读），对 cold child 则对一次持久化读取所得的事件调用 `restore({}, events, 0)` 读取。注册表约定不变：没有失败通道、没有新读法——单元永不抛错，值缺席本身就是信号，缺席如何呈现是该消费方自己的决定。
注册表的两处既有读法已经服务于本 RFC 协议计划之外的一个已交付消费方：[subagent 列表经投影单元读取身份](../../implemented/architecture/2026-08-06-subagent-list-identity-projection.md)注册了 `subagent` 单元——从 `subagent/descriptor` 按 last-wins 折叠出的持久化 mode/label 身份——`SubagentService.listChildren` 对 live child 经 `snapshot()` 读取（水位缓存，零日志读），对 cold child 则用一次持久化整读的结果调用 `restore({}, events, 0)` 读取。注册表约定不变：没有失败通道、没有新读法——单元永不抛错，值缺席本身就是信号，缺席如何呈现是该消费方自己的决定。
### 协议层：历史尾页上的 projections 块
@@ -147,7 +147,7 @@ host 侧命令执行器（`packages/interaction/commands`）在调用处理器
**为 plan 待定意图专设的仅实时叠加钩子（`live?(agent, base)`）**——不予采纳：它存在的唯一理由是用户的 plan *选择*不在日志里。让选择走标准命令通道后，`command/run` 上了账，待定态成为纯回放量，投影约定保持恰好三个纯函数。
**把 seam 命名为 `registerFold`**——已被单元约定取代：注册对象如今确实是一个折叠，但本仓库里 `fold*` 专指纯 `(events) => state` 辅助函数，而该 seam 注册的是带 key、带 schema、带版本的单元。投影仍是事件溯源中指称读模型角色的术语，#587 的 Note 标题与 #497 的评论也都已在使用它。
**把注册 API 命名为 `registerFold`**——已被单元约定取代：注册对象如今确实是一个折叠，但本仓库里 `fold*` 专指纯 `(events) => state` 辅助函数，而该注册表接收的是带 key、带 schema、带版本的单元。投影仍是事件溯源中指称读模型角色的术语，#587 的 Note 标题与 #497 的评论也都已在使用它。
**客户端侧折叠（带 `fromEvent` 的按领域投影 cell）**——曾是第二稿，后被否决：一旦 plan 的单元要折叠两种事件，客户端 cell 就必须在浏览器里复刻 host 的状态转移逻辑——同一个折叠写两遍、各自演化。推送成品值（标题帧先例的泛化）保住唯一计算地点，并把客户端简化为一个由 seq 把守的通用值仓；领域零客户端代码。