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feat(invariants): add package-owned service seam

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Tianyi Cui
2026-07-19 19:19:57 +08:00
parent 38b7275eb1
commit 9d310ecc27
83 changed files with 2225 additions and 1557 deletions
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docs/rfc/implemented/process/2026-07-14-typescript-program-backed-semantic-gates.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
2026-07-14-typescript-program-backed-semantic-gates.md: 3e7a76e86d83080ae1a4f91ca97cc9749c90ef29
2026-07-14-typescript-program-backed-semantic-gates.zh.md: 0a13452012e7f6cbd3ad7994845ba1985355c089
2026-07-14-typescript-program-backed-semantic-gates.md: 427ffbf93a67a49664115f2376351c8da5afb9d1
2026-07-14-typescript-program-backed-semantic-gates.zh.md: 56cba0141fdba98e0186093dca565674dd47cc9f

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docs/rfc/implemented/process/2026-07-14-typescript-program-backed-semantic-gates.md
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@@ -38,9 +38,9 @@ Every declared harness event must have a discovered producer. A missing producer
Exactly one match generates a resolver. Multiple matches are ambiguous and fail. Zero matches require `@dshScopeScan unsupported`, which is reserved for events whose routing key intentionally stays outside the payload, such as owner-keyed session events and parent-keyed subagent lifecycle events. The annotation records an unsupported scan; it does not encode an event name, parameter index, property path, or replacement type.
The committed [`scoped-events.generated.ts`](../../../../packages/support/invariants/src/scoped-events.generated.ts) imports every scoped-event owner for its type-side `Events` contributions. Each generated lambda accepts `Parameters<Events[K]>`, and the complete object satisfies a `Record` over the derived `ScopedEventName` union. Ordinary TypeScript compilation therefore checks event existence, parameter position, property access, and scoped-event completeness. The only cast adapts Cordis's runtime `unknown[]` dispatch boundary to the already type-checked resolver.
The committed [`scoped-events.generated.ts`](../../../../packages/core/scope/src/scoped-events.generated.ts) is a runtime-only map in the package that owns scoped dispatch and imports no event-owner package. Semantic completeness lives in the generator: its root Program enumerates every scoped `Events` declaration and real `scopeTarget` contract, resolves the unique payload path with the checker, and refuses missing, stale, or ambiguous entries before rendering the `unknown[]` runtime boundary.
The invariants plugin consumes this generated runtime map instead of maintaining its own table. Additional event-owner packages are dev dependencies and project references of `dsh-invariants`, not peer dependencies, so the compile-time aggregation does not expand the plugin's runtime closure.
The `dsh-scope/invariant` companion consumes this map instead of maintaining a handwritten table. Because Program analysis happens in the repository gate rather than through generated type imports, neither `dsh-scope` nor `dsh-invariants` acquires dependencies on every event owner.
### Semantic gaps fail explicitly
@@ -48,7 +48,7 @@ The generators reject missing declarations, config diagnostics, widened or gener
## Verification
`verify-doc-graphs` freshness-checks semantic producer/listener discovery, and `verify-scoped-events` freshness-checks the generated resolver map. The root TypeScript build compiles the resolver against merged `Events`; workspace constraints and runtime-closure checks ensure its type-only aggregation does not become a deployment dependency.
`verify-doc-graphs` freshness-checks semantic producer/listener discovery, and `verify-scoped-events` reruns the Program analysis while freshness-checking the generated resolver map. The root TypeScript build compiles its runtime adapter; workspace constraints and runtime-closure checks keep event-owner aggregation out of deployment dependencies.
## Alternatives considered
@@ -58,6 +58,6 @@ The generators reject missing declarations, config diagnostics, widened or gener
- Event relation generation follows semantic receiver identity and closed event values instead of local naming conventions.
- Scoped-event membership, subject extraction, and runtime invariant coverage come from event declarations and real dispatch contracts rather than handwritten tables.
- Refactors that change event names, parameter positions, subject properties, or routing-key types fail generation or compilation at the owning contract.
- Refactors that change event names, parameter positions, subject properties, or routing-key types fail generation at the owning contract.
- Building a flattened Program costs more startup time and memory than parsing isolated files, and semantic gates depend on a valid root project graph.
- Generated TypeScript remains committed source: changes to event owners or dispatch shapes must regenerate it and the affected documentation.

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docs/rfc/implemented/process/2026-07-14-typescript-program-backed-semantic-gates.zh.md
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@@ -38,9 +38,9 @@ Context 与 AgentEventDispatch 调用只贡献有限的字符串字面量事件
恰好一个匹配项会生成解析函数。存在多个匹配项时，含义不明确，生成器会失败。没有匹配项时，事件必须标记 `@dshScopeScan unsupported`；该标记只用于路由键有意留在事件参数之外的情况，例如按所属 agent（智能体）路由的会话事件和按父 agent 路由的 subagent 生命周期事件。此标记只表示扫描不受支持，不编码事件名、参数下标、属性路径或替代类型。
仓库提交的 [`scoped-events.generated.ts`](../../../../packages/support/invariants/src/scoped-events.generated.ts) 会导入每个带作用域的事件声明方，使它们从类型侧合并进 `Events`。每个生成函数都接收 `Parameters<Events[K]>`，完整对象则满足基于 `ScopedEventName` 联合类型派生出的 `Record`。因此，常规 TypeScript 编译会检查事件是否存在、参数位置、属性访问和带作用域的事件集合完整性。唯一的类型断言只负责将 Cordis 运行时的 `unknown[]` dispatch 边界适配到已经通过类型检查的解析函数。
仓库提交的 [`scoped-events.generated.ts`](../../../../packages/core/scope/src/scoped-events.generated.ts) 是位于 scoped dispatch 所属包中的纯运行时映射，不导入任何事件声明方包。语义完整性由生成器自身保证：根 Program 枚举所有 scoped `Events` 声明与真实 `scopeTarget` 契约，通过 checker 解析唯一的 payload 路径，并在渲染 `unknown[]` 运行时边界前拒绝缺失、陈旧或含义不明确的条目。
不变式插件消费这份生成的运行时表，不再维护自己的事件表。新增的事件声明方包只作为 `dsh-invariants` 的开发依赖和项目引用存在，不进入对等依赖，因此编译期聚合不会扩大插件的运行时依赖闭包。
`dsh-scope/invariant` companion 消费这份映射，不再维护手写事件表。Program 分析发生在仓库门禁内，而不是依赖生成的类型导入，因此 `dsh-scope` 和 `dsh-invariants` 都不需要依赖所有事件声明方。
### 语义缺口必须显式失败
@@ -48,7 +48,7 @@ Context 与 AgentEventDispatch 调用只贡献有限的字符串字面量事件
## 验证
`verify-doc-graphs` 对语义生产方/监听方扫描执行新鲜度检查，`verify-scoped-events` 对生成的解析函数表执行新鲜度检查。根 TypeScript 构建会将解析函数与合并后的 `Events` 一起编译；workspace 约束和运行时依赖闭包检查则确保仅参与类型聚合的依赖不会变成部署依赖。
`verify-doc-graphs` 对语义生产方/监听方扫描执行新鲜度检查；`verify-scoped-events` 会重新运行 Program 分析，并检查生成映射的新鲜度。根 TypeScript 构建编译其运行时适配器；workspace 约束与运行时依赖闭包检查确保事件声明方聚合不会进入部署依赖。
## 考虑过的替代方案
@@ -58,6 +58,6 @@ Context 与 AgentEventDispatch 调用只贡献有限的字符串字面量事件
- 事件关系生成依据语义接收者身份和封闭事件值，不再依赖局部命名约定；
- 带作用域的事件成员关系、主体提取和运行时不变式覆盖来自事件声明与真实 dispatch 契约，不再来自手写表；
- 修改事件名、参数位置、主体属性或路由键类型时，会在其所属契约处触发生成或编译失败；
- 修改事件名、参数位置、主体属性或路由键类型时，会在其所属契约处触发生成失败；
- 构建扁平化 Program 比解析孤立文件消耗更多启动时间和内存，语义门禁也依赖有效的根项目图；
- 生成的 TypeScript 仍属于提交到仓库的源码：事件声明方或 dispatch 形态发生变化后，必须重新生成该文件和受影响的文档。