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fix(code-mode): keep deep host boundaries iterative

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Tianyi Cui
2026-07-23 00:30:36 +08:00
parent 25d0ef5c6c
commit e35a419ba8
8 changed files with 144 additions and 21 deletions
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4
.agents/notes/implemented/feature/2026-07-20-code-mode-typed-tool-returns.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
2026-07-20-code-mode-typed-tool-returns.md: f902aa4ff8cdaa0979f09850ea15deede5fdf576
2026-07-20-code-mode-typed-tool-returns.zh.md: 4bdec90960e270f5be03b0a4c30d7c829dd27f6a
2026-07-20-code-mode-typed-tool-returns.md: bcaefb196d12660177ad2bbc9c20ad71f6537eae
2026-07-20-code-mode-typed-tool-returns.zh.md: 72946f4cc1ab7569fc1e3f90785debf8314f1d35

2
.agents/notes/implemented/feature/2026-07-20-code-mode-typed-tool-returns.md
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@@ -49,7 +49,7 @@ declare const tools: {
### Binding values and failures
Before dispatch the bridge snapshots binding arguments as lossless JSON and makes independent clones for execution and the durable summary event. `undefined`, non-finite numbers, `-0`, sparse arrays, cycles, functions, and exotic objects reject that call before the tool runs. Successful dispatch returns `ToolExecutionResult.value`; Native `content`, metadata, and internal error information do not cross to the program.
Before dispatch the bridge snapshots binding arguments as lossless JSON and snapshots the detached value again for an independent durable summary event. Host-side detachment, immutable execution, and output-schema projection all use iterative traversals rather than nested structured clone or recursive freezing. `undefined`, non-finite numbers, `-0`, sparse arrays, cycles, functions, and exotic objects reject that call before the tool runs. Successful dispatch returns `ToolExecutionResult.value`; Native `content`, metadata, and internal error information do not cross to the program.
The worker exposes the actual `ToolCallError` constructor used for `tools` binding failures, so `error instanceof ToolCallError` works. The error has the standard `Error` message plus the exact `toolName`; it deliberately omits `ToolFailure.info`, error codes, and Native content. This is an exception contract for control flow, not a failure union for programmatic classification.

2
.agents/notes/implemented/feature/2026-07-20-code-mode-typed-tool-returns.zh.md
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@@ -49,7 +49,7 @@ declare const tools: {
### 绑定值与失败
分发前，桥接层会把绑定参数快照为无损 JSON，并为执行和持久摘要事件分别创建独立副本。`undefined`、非有限数、`-0`、稀疏数组、循环引用、函数和非普通对象都会使该调用在工具运行前 reject。成功分发会返回 `ToolExecutionResult.value`；Native `content`、元数据和内部错误信息不会传入程序。
分发前，桥接层会把绑定参数快照为无损 JSON，再对分离后的值生成一次快照，供独立的持久摘要事件使用。宿主侧的值分离、执行数据的不可变处理与输出 schema 投影均采用迭代遍历，而不使用嵌套结构化克隆或递归冻结。`undefined`、非有限数、`-0`、稀疏数组、循环引用、函数和非普通对象都会使该调用在工具运行前 reject。成功分发会返回 `ToolExecutionResult.value`；Native `content`、元数据和内部错误信息不会传入程序。
worker 暴露的是真正用于 `tools` 绑定失败的 `ToolCallError` 构造函数，因此 `error instanceof ToolCallError` 能够成立。该错误包含标准的 `Error` 消息和确切的 `toolName`，并有意省略 `ToolFailure.info`、错误代码与 Native 内容。这是一项用于控制流的异常契约，而不是供程序分类的失败联合。