Merge remote-tracking branch 'origin/master' into xjt/generated-docs-zh-translation-apply

# Conflicts: # .agents/notes/implemented/feature/2026-08-07-default-model-follows-the-picker.i18n.yaml # .agents/notes/implemented/feature/2026-08-07-default-model-follows-the-picker.zh.md # docs/architecture.i18n.yaml # docs/architecture.zh.md # docs/user/guide/providers.i18n.yaml # docs/user/guide/providers.zh.md # docs/user/guide/quickstart.i18n.yaml # docs/user/guide/quickstart.zh.md # packages/boot/app-boot/README.i18n.yaml # packages/boot/app-boot/README.zh.md # packages/bundle/headless/README.i18n.yaml # packages/bundle/headless/README.zh.md
2026-08-09 15:17:35 +08:00
parent c12bcc6f4b 8c124f84b6
commit a0d48c9c87
169 changed files with 1618 additions and 1086 deletions
--- a/.agents/notes/implemented/architecture/2026-07-15-llm-model-catalog-and-acp-selection.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-07-15-llm-model-catalog-and-acp-selection.i18n.yaml
@@ -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/architecture/2026-07-15-llm-model-catalog-and-acp-selection.md
-2026-07-15-llm-model-catalog-and-acp-selection.md: 9edc723b0dfafeaf395eb9325373835138ddbc41
-2026-07-15-llm-model-catalog-and-acp-selection.zh.md: aefd0af3e4de8fac4f5819e0ee279d3343aec6be
+2026-07-15-llm-model-catalog-and-acp-selection.md: 41174209d2c44bedb5dd0615c5f877ecebd43639
+2026-07-15-llm-model-catalog-and-acp-selection.zh.md: 43442487649f7a552d66bd66b64e0e5072f5e00b
--- a/.agents/notes/implemented/architecture/2026-07-15-llm-model-catalog-and-acp-selection.md
+++ b/.agents/notes/implemented/architecture/2026-07-15-llm-model-catalog-and-acp-selection.md
@@ -34,9 +34,9 @@ The ACP automation transport is not a catalog consumer. Its deployment config su

 ### Prompt/request consistency and durability

-`installAgentLlmTarget` (in `dsh-agent`) installs scoped `system-prompt/assemble` and `agent/request` listeners for a front-door-owned target. Prompt assembly snapshots the selected pair once per step, overwrites the assembled `provider` and `model` variables after downstream prompt listeners, and the request listener applies that same snapshot after downstream request listeners. A selection during asynchronous assembly therefore starts on the next step rather than splitting prompt text from routing. Other call-config fields remain untouched.
+`installModelSelection` (in `dsh-agent`) installs scoped `system-prompt/assemble` and `agent/request` listeners for a front-door-owned selection. Prompt assembly snapshots the selected pair once per step, overwrites the assembled `provider` and `model` variables after downstream prompt listeners, and the request listener applies that same snapshot after downstream request listeners. A selection during asynchronous assembly therefore starts on the next step rather than splitting prompt text from routing. Other call-config fields remain untouched.

-The request header remains the durable source of truth. When a selected target is actually used, the existing full `request/header` snapshot records it, and a front door initializes its selection from the folded last request header before falling back to creation options. A selection that is never used by a request is intentionally in-memory only because it never became model-visible state.
+The request header remains the durable source of truth. When a selection is actually used, the existing full `request/header` snapshot records it, and a front door initializes its selection from the folded last request header before falling back to creation options. A selection that is never used by a request is intentionally in-memory only because it never became model-visible state.

 ## Alternatives considered

--- a/.agents/notes/implemented/architecture/2026-07-15-llm-model-catalog-and-acp-selection.zh.md
+++ b/.agents/notes/implemented/architecture/2026-07-15-llm-model-catalog-and-acp-selection.zh.md
@@ -34,9 +34,9 @@ ACP 自动化传输层不是目录消费方。它通过部署配置为新创建

 ### 提示词／请求一致性与持久化

-`installAgentLlmTarget`（位于 `dsh-agent`）为前门拥有的目标安装 agent 作用域的 `system-prompt/assemble` 与 `agent/request` 监听器。提示词组装在每个步骤对所选组合做一次快照，在下游提示词监听器之后覆写组装出的 `provider` 与 `model` 变量；请求监听器在下游请求监听器之后应用同一快照。因此，发生在异步组装期间的选择会从下一个步骤生效，而不会让提示词文本与路由分裂。其他调用配置字段保持不变。
+`installModelSelection`（位于 `dsh-agent`）为前门拥有的选择安装 agent 作用域的 `system-prompt/assemble` 与 `agent/request` 监听器。提示词组装在每个步骤对所选组合做一次快照，在下游提示词监听器之后覆写组装出的 `provider` 与 `model` 变量；请求监听器在下游请求监听器之后应用同一快照。因此，发生在异步组装期间的选择会从下一个步骤生效，而不会让提示词文本与路由分裂。其他调用配置字段保持不变。

-请求头仍是持久化的真源。当所选目标真正被使用时，现有的完整 `request/header` 快照会记录它；前门先从折叠后的最后一个请求头初始化其选择，然后才回退到创建选项。从未被请求使用的选择有意只保留在内存中，因为它从未成为模型可见状态。
+请求头仍是持久化的真源。当某个选择真正被使用时，现有的完整 `request/header` 快照会记录它；前门先从折叠后的最后一个请求头初始化其选择，然后才回退到创建选项。从未被请求使用的选择有意只保留在内存中，因为它从未成为模型可见状态。

 ## 考虑过的替代方案

--- a/.agents/notes/implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.i18n.yaml
@@ -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/architecture/2026-07-19-gui-layering-and-rpc-protocol.md
-2026-07-19-gui-layering-and-rpc-protocol.md: 8e020e4fe9b60100671c0cf0e98e28532d850f94
-2026-07-19-gui-layering-and-rpc-protocol.zh.md: 5c7ee5a407216807e84bd2e62f604dc9c24b6ec9
+2026-07-19-gui-layering-and-rpc-protocol.md: ceb8e5db593aef14d6db259f6293381fe83defe2
+2026-07-19-gui-layering-and-rpc-protocol.zh.md: bc0b6a9e883a1ce7d2990f8dc7284035649ac215
--- a/.agents/notes/implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.md
+++ b/.agents/notes/implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.md
@@ -31,7 +31,7 @@ Directories layer as follows:
    - **Fetch-arrival plugin packages** (`ui-layout`, `ui-sidebar`, `ui-conversation`, `ui-trajectory`): dual-entry — the root index is the node half (an empty `apply`, existing so the host Loader governs lifecycle and the web plugin registry discovers the package.json `dshClient` declaration); the implementation lives under `src/client/`, shipped as the `./client` subpath (a tsdown closure-factory bundle). Cross-plugin consumption of `/client` is type-only; value cooperation goes through cordis services.
 - `apps/` holds the externally exported application shapes, assembled from Client / Host mixtures.
    - `apps/web` (`dsh-frontend`) is the vite application: a thin `main.ts` over the shell surface exported by `dsh-client-web`.
-    - `apps/cli` (`@deepseek-ai/dsh`) dispatches shapes: `dsh web` = startHost + webserver + the built `dsh-frontend` dist; `dsh run` = headless in-process calls, zero HTTP.
+    - `apps/cli` (`@deepseek-ai/dsh`) dispatches shapes: `dsh web` = Host + webserver + the built `dsh-frontend` dist; `dsh run` = [a direct core Agent/Session front door](2026-08-09-headless-direct-core-front-door.md), with zero Host, HTTP, or browser layer.
    - A future Electron shape reuses the same web client packages over an IPC fetch carrier.

 ```
@@ -79,7 +79,7 @@ Packages under `packages/host/*` and `packages/client/*` **must carry the direct
 2. **Write an assembly module under `apps/`**: `startHost()` + a client subclass + the shape's private signal/print/exit semantics; a mixture never becomes a package — assembly is written in the app.
 3. **Import `dsh-host-webserver` only if you need HTTP carriage**, otherwise zero ports.

-The two existing shapes are the template: `apps/cli/src/web.ts` (startHost + dist location + startWebServer + signal shutdown) and `headless.ts` (startHost + InProcessApiClient isomorphic direct calls, zero HTTP zero ports). ACP-class protocol bridges do not follow this checklist: they expose core to the external ecosystem, mount via `ctx.plugin(front-door plugin)` directly, and wear no fetch.
+The two existing shapes preserve the boundary: the Web shape mounts Host, carrier, and browser composition, while `dsh run` mounts a direct core runner with zero Host, HTTP, or ports. ACP-class protocol bridges do not follow the client-carrier checklist: they expose core to the external ecosystem, mount via `ctx.plugin(front-door plugin)` directly, and wear no fetch.

 ## Message protocol

@@ -215,7 +215,7 @@ All four quadrant full forms pass through `onEnvelope`; the base implementation

 | Subclass | Package | doFetch | Purpose |
 |---|---|---|---|
-| `InProcessApiClient` | apiproxy itself | the injected `{ fetch }` handler | **The isomorphic point**: `new InProcessApiClient(toFetchHandler(api))` never touches the network yet runs the real wire serialization/zod/SSE framing — `dsh run` headless is the protocol's second real consumer |
+| `InProcessApiClient` | apiproxy itself | the injected `{ fetch }` handler | **The isomorphic point**: `new InProcessApiClient(toFetchHandler(api))` never touches the network yet runs the real wire serialization/zod/SSE framing; carrier tests and callers can exercise the protocol without opening a port, while product `dsh run` drives core directly |
 | `WebApiClient` | dsh-client-connection | `globalThis.fetch` uplink + one same-origin WebSocket downlink per logical stream | the browser shape; physical boundary in the [WebSocket downlink carrier](2026-08-04-websocket-downlink-carrier.md) |
 | `FixtureApiClient` | dsh-client-connection | unused (protocol-layer override) | serverless UI development (`?fixture`): overrides the `callUnary`/`openMux`/`openHost`/`respond` virtuals and is itself the fake server (frame rpcIds minted by it, semantics self-consistent) |
 | (future) IPC bridge subclass | apps/electron | IPC serialization round trip | swaps only doFetch; contract and base class unchanged |
@@ -242,7 +242,7 @@ Every client shape consumes one contract: adding a unary method is a five-step m
 |---|---|
 | Packaging by "product shape" (a web family, an electron family) | What shapes share is host/client capability, not the shape itself; capability-provider layering means a new shape needs zero new packages |
 | A package per mixture (e.g. a standalone headless package) | A mixture has exactly one consumer (its own app); packaging it is ownerless abstraction, while assembly in the app is readable and disposable |
-| Consuming clients connecting to ctx directly (skipping the apiproxy layer) | A second command plane bypasses the contract, losing wire validation/observability/multi-client consistency; ctx keeps exactly two formal uses — front doors and headless event subscription |
+| Consuming clients connecting to ctx directly (skipping the apiproxy layer) | Client shapes require wire validation, observability, and multi-client consistency. Direct headless is a local front door with no client boundary and uses the public Agent/Session seams rather than a client command plane |
 | webserver depending on runtime (saving the handler injection) | Structural-typing injection keeps webserver reusable by sidecars/tests with zero workspace deps; a package dependency would drag assembly knowledge into the carrier layer |
 | Package names without the group prefix (continuing dsh-<tail>) | `dsh-runtime`/`dsh-web-ui` lose their belonging in the flat npm namespace; the cost is one explicit paths entry per package |
 | Reusing the in-repo JSON-RPC 2.0 (dsh-jsonrpc) | Numeric error codes degrade to a single fallback code, contracts get aligned by hand in two copies, and naming drifts without a convention |
--- a/.agents/notes/implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.zh.md
+++ b/.agents/notes/implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.zh.md
@@ -29,7 +29,7 @@ Status: implemented
    - **fetch 到达插件包**（`ui-layout`、`ui-sidebar`、`ui-conversation`、`ui-trajectory`）：双入口——根入口是 node 半边（空 `apply`，其存在是为了让 host Loader 管辖生命周期、让 web 插件注册表发现 package.json 的 `dshClient` 声明）；实现住在 `src/client/` 下，经 `./client` 子路径发布（tsdown 闭包工厂 bundle）。跨插件消费 `/client` 只限类型；值层面的协作走 cordis 服务。
 - `apps/` 作为对外导出的应用形态入口，可以由 Client / Host 混合组装。
    - `apps/web`（`dsh-frontend`）是 vite 应用：`dsh-client-web` 导出的壳表面之上的一层薄 `main.ts`。
-    - `apps/cli`（`@deepseek-ai/dsh`）做形态分发：`dsh web` = startHost + webserver + 构建出的 `dsh-frontend` dist；`dsh run` = headless 进程内直调，零 HTTP。
+    - `apps/cli`（`@deepseek-ai/dsh`）做形态分发：`dsh web` = Host + webserver + 构建出的 `dsh-frontend` dist；`dsh run` = [直接使用核心 Agent／Session 的前门](2026-08-09-headless-direct-core-front-door.md)，不含 Host、HTTP 或浏览器层。
    - 将来的 Electron 形态经由 IPC fetch 载体复用同一套 web client 包。

 ```
@@ -77,7 +77,7 @@ TypeScript 以 solution 根引用的**两个聚合 program** 检查（`tsconfig.
 2. **在 `apps/` 下写拼装模块**：`startHost()` + 客户端子类 + 该形态私有的信号/打印/退出语义；混合体不建包，拼装写在 app 里。
 3. **需要 HTTP 承载才 import `dsh-host-webserver`**，否则零端口。

-现有两形态即模板：`apps/cli/src/web.ts`（startHost + dist 定位 + startWebServer + 信号停机）与 `headless.ts`（startHost + InProcessApiClient 同构直调，零 HTTP 零端口）。ACP 类协议桥不走本清单：它把 core 暴露给外部生态，直接 `ctx.plugin(前门插件)` 挂载、不套 fetch。
+现有两种形态保持这一边界：Web 形态挂载 Host、载体与浏览器组合，而 `dsh run` 挂载直接使用核心服务的 runner，不包含 Host、HTTP 或端口。ACP 类协议桥不遵循 client 载体清单：它把 core 暴露给外部生态，直接通过 `ctx.plugin(前门插件)` 挂载，不套 fetch。

 ## 消息协议

@@ -213,7 +213,7 @@ export type ResponseValue<K> =

 | 子类 | 所在包 | doFetch | 用途 |
 |---|---|---|---|
-| `InProcessApiClient` | apiproxy 本包 | 注入的 `{ fetch }` handler | **同构点**：`new InProcessApiClient(toFetchHandler(api))` 全程不过网络但真跑 wire 序列化/zod/SSE 帧——`dsh run` headless 即协议第二真实消费者 |
+| `InProcessApiClient` | apiproxy 本包 | 注入的 `{ fetch }` handler | **同构点**：`new InProcessApiClient(toFetchHandler(api))` 全程不过网络但真跑 wire 序列化/zod/SSE 帧；载体测试与调用方可以在不打开端口的情况下运行这套协议，而产品 `dsh run` 直接驱动 core |
 | `WebApiClient` | dsh-client-connection | `globalThis.fetch` 上行 + 每逻辑流一条同源 WebSocket 下行 | 浏览器形态；物理边界见 [WebSocket 下行载体](2026-08-04-websocket-downlink-carrier.md) |
 | `FixtureApiClient` | dsh-client-connection | 不用（协议层覆写） | 无 server 的 UI 开发（`?fixture`）：覆写 `callUnary`/`openMux`/`openHost`/`respond` 虚方法，自己就是假 server（帧 rpcId 由它 mint，语义自洽） |
 | （将来）IPC 桥子类 | apps/electron | IPC 序列化往返 | 仅换 doFetch，约定/基类零改 |
@@ -240,7 +240,7 @@ export type ResponseValue<K> =
 |---|---|
 | 按「产品形态」分包（web 一族、electron 一族） | 形态间共享的是 host/client 两侧能力而非形态本身；能力支持方分层让新形态零新包 |
 | 混合体建包（如 headless 独立包） | 混合体只有一个消费者（它自己的 app），建包是无主抽象；拼装写在 app 里可读可弃 |
-| 消费型 client 直连 ctx（省 apiproxy 一层） | 第二命令面绕开约定，wire 校验/观测/多端一致性全失；ctx 只留给前门与 headless 事件订阅两个正式用途 |
+| 消费型 client 直连 ctx（省 apiproxy 一层） | client 形态需要 wire 校验、观测与多 client 一致性。直接 headless 是没有 client 边界的本地前门，使用公开的 Agent／Session seam，而不是 client 命令面 |
 | webserver 依赖 runtime（省 handler 注入） | 结构 typing 注入让 webserver 可被 sidecar/测试复用且零 workspace 依赖；包依赖会把装配知识拖进承载层 |
 | 包名不带组前缀（沿用 dsh-<尾段>） | `dsh-runtime`/`dsh-web-ui` 在扁平 npm 命名空间里失去归属信息；代价只是每包一条显式 paths |
 | 复用仓内 JSON-RPC 2.0（dsh-jsonrpc） | 数字错误码退化成单码兜底、约定双份人肉对齐、命名无 convention 自然漂移 |
--- a/.agents/notes/implemented/architecture/2026-07-24-web-config-tree-boot-and-transport-layering.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-07-24-web-config-tree-boot-and-transport-layering.i18n.yaml
@@ -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/architecture/2026-07-24-web-config-tree-boot-and-transport-layering.md
-2026-07-24-web-config-tree-boot-and-transport-layering.md: 88f94b1f58ae7a3451c7772f4a9ff7d6564254c0
-2026-07-24-web-config-tree-boot-and-transport-layering.zh.md: 5f03dfbb8e5eaeeb52076584721e70ea66a292df
+2026-07-24-web-config-tree-boot-and-transport-layering.md: 496499a691dbca012e5e953cbb6eb1d0bf25b635
+2026-07-24-web-config-tree-boot-and-transport-layering.zh.md: 4a83db6f797ad2a0b048ef996d10dbc5ea0a33dd
--- a/.agents/notes/implemented/architecture/2026-07-24-web-config-tree-boot-and-transport-layering.md
+++ b/.agents/notes/implemented/architecture/2026-07-24-web-config-tree-boot-and-transport-layering.md
@@ -16,23 +16,23 @@ English | [中文](2026-07-24-web-config-tree-boot-and-transport-layering.zh.md)

 **Boot glue is a class pair.** `AppCLIEntry` (apps/cli) and `AppWebEntry` (the shell kernel) hold only what must exist independently of cordis: argv facts, the composed patch set, the parsed boot manifest, the module system instance, loading-page handles — everything else lives in plugins. `AppCLIEntry.run()` is three stages: layered env (ambient > cwd `.env` > `$DSH_HOME/.env`, closing the defect above) → patch composition → Loader include boot plus the activation audit. `AppWebEntry.run()` mirrors it browser-side: parse `window.__DSH_BOOT__` into a `BootManifest` (two views: npm-package rows for the module table, cordis-plugin rows for entry composition; malformed wire throws), build the module system, render the loading page, prefetch the `immediately` tier in parallel with Context/Loader setup, **await the prefetch before creating entries** (materialization is `tree.import`'s synchronous require, unprotected by fiber inject waiting; cross-package require edges such as i18n → runtime/client need every immediately-tier factory registered first — an empirically found 10–25% boot race otherwise), adopt the modules entry, create the graph rows, settle, sweep.

-**Config sources have one declaration place each.** yml static values are engineering defaults; the profile json (`./.dsh-tmp-profile/config.json`, read-only, never created, cwd-anchored until the `$DSH_HOME` migration) is user config mapped through a static `PROFILE_MAPPINGS` table onto target rows (`provider`/`model` → the `api-gateway` row, `persistenceRoot` → the jsonl row); CLI flags map onto the `webserver` row with a field set disjoint from the json's; env values enter through yml `!!js` expressions, never through the mapping table. Patches replace a row's config wholesale, so the entry class re-reads the yml row's static values (bypass parse) and merges overrides on top. An unmapped json key fails loud. The resolved frontend `distIndex` rides the same patch channel — an assembly fact, not user config.
+**Config sources have one declaration place each.** Bundle yml values are engineering defaults, Settings sections are writable user preferences, CLI flags address their owning launcher rows, and env values enter through yml `!!js` expressions. Patches replace a row's config wholesale. The resolved frontend `distIndex` uses that patch channel as an assembly fact. The transport-independent provider/model default belongs to `ctx.agentDefaultModel`; the [direct headless front door](2026-08-09-headless-direct-core-front-door.md) and the Web gateway consume the same state.

-**The transport splits five ways.** `dsh-host-apiproxy` upgraded to the gateway plugin (`api-gateway` row): default-exports `ApiProxyService`, config `{provider, model}`, provides `ctx.apiProxy`, transport-agnostic and registers no routes — `createApiProxy` moved here from the retired runtime package. `dsh-host-webserver` shrank to a plain route-registration plugin: `HttpServerService` provides `ctx.httpServer` (`register(route) → disposer` with duplicate-pattern throw, `tapIndex` transforms applied in registration order, `port`), listens on activation, per-request failures answer 400 and log without exiting, and knows no harness concepts. The connection node half owns the binding: it injects both services and registers `toFetchHandler(ctx.apiProxy)` under the `/api` prefix — future IPC carriers swap connection's transport while the gateway stays untouched. The modules node half (`ClientModuleHostService`, providing `ctx.clientModuleHost`) owns the graph: incremental per-package scanning (no full-rescan code path — `internal/plugin` marks the fiber's entry name dirty, a flush reconciles each name against live entries, package metadata including negative verdicts is cached forever, re-hashing is reachable only through `rebuilt(id)`), the bundle route, the index tap, and `onRebuilt`/`onGraphChanged` notification. The hmr node half owns dev reload: `fs.watchFile` stat-polling driven by `onGraphChanged` membership, and the `/plugins/events` SSE route.
+**The transport splits five ways.** `dsh-host-apiproxy` is the gateway plugin (`api-gateway` row): it default-exports `ApiProxyService`, configures only `{workspaceRoot?}`, consumes the base layer's front-door-neutral `ctx.agentDefaultModel`, provides `ctx.apiProxy`, remains transport-agnostic, and registers no routes. `dsh-host-webserver` is a plain route-registration plugin: `HttpServerService` provides `ctx.httpServer` (`register(route) → disposer` with duplicate-pattern throw, `tapIndex` transforms applied in registration order, `port`), listens on activation, answers per-request failures with 400 and logging, and knows no harness concepts. The connection node half owns the `/api` binding from `ctx.apiProxy` through `toFetchHandler`. The modules node half (`ClientModuleHostService`, providing `ctx.clientModuleHost`) owns incremental package scanning, the bundle route, the index tap, and `onRebuilt`/`onGraphChanged` notification. The hmr node half owns dev reload through `fs.watchFile` membership and the `/plugins/events` SSE route.

 **Package export discipline.** The modules package exposes exactly `.` (node half) and `./client` (the complete browser half: `ClientModuleSystem`, `parseBootManifest`, the adoption plugin face) — no bespoke subpaths; wire types re-export through the root for host-side consumers. The adoption handshake: the kernel writes the constructed instance to `window.__DSH_MODULES__` before cordis exists; the `./client` apply reads the slot (missing = loud throw) and provides `ctx.modules`.

 ## Consequences

 - Recomposing a web deployment is a yml/patch edit; the retired pieces (`mountWebPlugins`, `CLIENT_PACKAGES`, `createHostWebPluginRegistry`, `startWebServer`, the webserver's graph/SSE/api knowledge) are deleted.
- Headless boots the same composition through the same entry (landed in the stacked follow-up): port 0 is its only surface difference, the model face gains `ask_user_question`/workspace context/model titles per the unification ruling, and `bootHost`/`startHost` retired with the `dsh-host-runtime` package. The profile write path, the `$DSH_HOME` profile relocation, and IPC carriers remain recorded deferrals.
+- [Headless is a direct core front door](2026-08-09-headless-direct-core-front-door.md): its shipped profile contains the shared base Agent capabilities and omits Host, HTTP, Web, and browser layers. The transport split in this note is the browser surface's contract.
 - A TypeScript pitfall worth remembering: a `declare module 'cordis'` augmentation in a file with **no cordis import** is demoted to a standalone module declaration and silently shatters the program-wide `Context` merge (`ctx.on`/`ctx.effect` vanish across the program). Anchor with `import type {} from 'cordis'`.

 ## Alternatives considered

 | Rejected | One-line reason |
 |---|---|
-| Dedicated `dsh-host-profile` receiver package | The profile json is consumed at patch time; the only runtime consumer of `{provider, model}` is the gateway itself — its config is the receiver |
+| Dedicated `dsh-host-profile` receiver package | User model state belongs to the Settings-backed `ctx.agentDefaultModel`; an extra Host receiver would duplicate ownership and exclude direct front doors |
 | Runtime `assembly` shim plugin providing an `apiHandler` service | Existed only because `createApiProxy` lived in runtime; moving it into apiproxy made the gateway self-hosting, and `toFetchHandler` is a pure function the binding side calls |
 | Full-rescan + incremental scan coexisting | Two implementations, two semantics; the single per-package path covers the activation pass too |
 | A bespoke `./impl` export on the modules package | Non-uniform export surface; the standard `./client` carries the whole browser half |
--- a/.agents/notes/implemented/architecture/2026-07-24-web-config-tree-boot-and-transport-layering.zh.md
+++ b/.agents/notes/implemented/architecture/2026-07-24-web-config-tree-boot-and-transport-layering.zh.md
@@ -16,23 +16,23 @@ Status: implemented

 **boot 胶水由两个类组成。** `AppCLIEntry`（apps/cli）与 `AppWebEntry`（壳内核）只持有那些必须独立于 cordis、提前存在的东西：argv 事实、合成的 patch 集、解析出的 boot manifest（元数据清单）、模块系统实例、loading 页句柄——其余一律进插件。`AppCLIEntry.run()` 三段：分层 env（ambient > cwd `.env` > `$DSH_HOME/.env`，顺手关掉上述缺陷）→ patch 合成 → Loader include boot 加 activation audit。`AppWebEntry.run()` 在浏览器侧镜像它：把 `window.__DSH_BOOT__` 解析成 `BootManifest`（双视角：npm 包行给模块表、cordis 插件行给 entry 组合；畸形 wire 大声抛）、建模块系统、渲染 loading 页、immediately 层预取与 Context/Loader 准备并行、**create entry 之前等预取齐**（物化是 `tree.import` 的同步 require，不受 fiber inject 等待保护；i18n → runtime/client 这类跨包 require 边要求 immediately 层工厂全部注册完——否则有实测 10–25% 的 boot 竞态）、收编 modules entry、逐一创建图行、settle、sweep。

-**每个配置源有唯一声明位置。** yml 静态值是工程默认；profile json（`./.dsh-tmp-profile/config.json`，只读、绝不创建、暂锚 cwd 直至 `$DSH_HOME` 迁移）是用户配置，经静态 `PROFILE_MAPPINGS` 表映射到目标行（`provider`/`model` → `api-gateway` 行，`persistenceRoot` → jsonl 行）；CLI（命令行界面）flags 映射到 `webserver` 行、字段集与 json 不相交；env 值经 yml `!!js` 表达式进入，绝不进映射表。patch 整体替换行 config，故 entry 类旁路 parse 重读 yml 行静态值再叠加覆盖。未映射的 json 键 fail loud。解析出的前端 `distIndex` 走同一 patch 通道——装配事实，不是用户配置。
+**每个配置源有唯一声明位置。** 组合包 yml 值是工程默认，Settings 分节是可写的用户偏好，CLI（命令行界面）flags 面向其归属的启动器配置行，env 值则通过 yml `!!js` 表达式进入。patch 会整体替换一行的 config。解析后的前端 `distIndex` 通过同一条 patch 通道作为组装事实传递。与传输无关的提供方／模型默认值归 `ctx.agentDefaultModel` 所有；[直接 headless 前门](2026-08-09-headless-direct-core-front-door.md)与 Web 网关消费同一份状态。

-**传输五分。** `dsh-host-apiproxy` 升格网关插件（`api-gateway` 行）：默认导出 `ApiProxyService`，config `{provider, model}`，provide `ctx.apiProxy`，传输无关、不注册路由——`createApiProxy` 从已退役的运行时包迁入。`dsh-host-webserver` 缩成朴素路由注册插件：`HttpServerService` provide `ctx.httpServer`（`register(route) → disposer`、重复 pattern 即抛、`tapIndex` 按注册序应用、`port`），激活即 listen，单请求失败答 400 并记日志，不退出进程，不认识任何 harness 概念。connection node 半拥有绑定：inject 两个服务，把 `toFetchHandler(ctx.apiProxy)` 注册在 `/api` 前缀下——将来 IPC 载体只换 connection 的传输，网关零改动。modules node 半（`ClientModuleHostService`，provide `ctx.clientModuleHost`）拥有图：单包增量扫描（无全量重扫路径——`internal/plugin` 把 fiber 的 entry 名标脏，flush 逐名对账 live entries，包括否定结论在内的包元数据会永久缓存，重哈希唯一入口 `rebuilt(id)`）、bundle 路由、index tap、`onRebuilt`/`onGraphChanged` 通知。HMR node 半拥有开发期重载：`fs.watchFile` stat 轮询、watch 集合跟随 `onGraphChanged`、`/plugins/events` SSE 路由。
+**传输五分。** `dsh-host-apiproxy` 是网关插件（`api-gateway` 行）：默认导出 `ApiProxyService`，只配置 `{workspaceRoot?}`，消费 base 层不偏向特定前门的 `ctx.agentDefaultModel`，provide `ctx.apiProxy`，保持传输无关且不注册路由。`dsh-host-webserver` 是朴素的路由注册插件：`HttpServerService` provide `ctx.httpServer`（`register(route) → disposer`、重复 pattern 即抛、`tapIndex` 按注册序应用、`port`），激活即 listen，单请求失败时答 400 并记日志，且不认识任何 harness 概念。connection node 半拥有从 `ctx.apiProxy` 经 `toFetchHandler` 绑定到 `/api` 的逻辑。modules node 半（`ClientModuleHostService`，provide `ctx.clientModuleHost`）拥有单包增量扫描、bundle 路由、index tap 与 `onRebuilt`/`onGraphChanged` 通知。HMR node 半通过 `fs.watchFile` membership 与 `/plugins/events` SSE 路由拥有开发期重载。

 **包出口纪律。** modules 包只暴露 `.`（node 半）与 `./client`（完整浏览器半：`ClientModuleSystem`、`parseBootManifest`、收编插件面）——不设专用子路径；wire 类型经根出口 re-export 给 host 侧消费方。收编握手：内核在 cordis 之前把建好的实例写入 `window.__DSH_MODULES__`；`./client` 的 apply 读取该槽位（缺少时显式抛错）并 provide `ctx.modules`。

 ## 后果

 - 重组一个 web 部署 = 改 yml/patch；退役件（`mountWebPlugins`、`CLIENT_PACKAGES`、`createHostWebPluginRegistry`、`startWebServer`、webserver 的图/SSE/api 知识）全部删除。
- headless 已在 stacked 后续轮迁入同一组合同一入口：唯一面差异是 port 0，模型面按统一裁决获得 `ask_user_question`/workspace context/模型标题，`bootHost`/`startHost` 随 `dsh-host-runtime` 包退役。profile 写入路径、profile 迁 `$DSH_HOME`、IPC 载体仍为挂账项。
+- [Headless 是直接 core 前门](2026-08-09-headless-direct-core-front-door.md)：其随附 profile 包含共享的 base Agent 能力，并省去 Host、HTTP、Web 与浏览器层。本笔记的传输划分是浏览器 surface 的契约。
 - 一个值得记住的 TypeScript 坑：`declare module 'cordis'` augmentation 所在文件若**没有任何 cordis import**，会被降级成独立 module declaration，无声打散全程序的 `Context` merge（`ctx.on`/`ctx.effect` 全程序消失）。用 `import type {} from 'cordis'` 锚定。

 ## 考虑过的替代方案

 | 弃案 | 一行理由 |
 |---|---|
-| 专门的 `dsh-host-profile` 受体包 | profile json 在 patch 阶段消费完；`{provider, model}` 的唯一运行时消费方是网关自己——受体即网关 config |
+| 专门的 `dsh-host-profile` 受体包 | 用户模型状态归 Settings 支撑的 `ctx.agentDefaultModel` 所有；额外的 Host 受体会重复归属，并排除直接前门 |
 | 运行时里的 `assembly` 垫层插件（provide `apiHandler`） | 它的存在只因 `createApiProxy` 住运行时；本体迁入 apiproxy 后网关自持插件身份，且 `toFetchHandler` 是绑定方自己调的纯函数 |
 | 全量重扫与增量扫描并存 | 两条实现两份语义；单包路径足以覆盖激活初扫 |
 | modules 包特设 `./impl` 出口 | 出口面不统一；标准 `./client` 承载完整浏览器半 |
--- a/.agents/notes/implemented/architecture/2026-08-05-profile-plugin-bundles.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-08-05-profile-plugin-bundles.i18n.yaml
@@ -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/architecture/2026-08-05-profile-plugin-bundles.md
-2026-08-05-profile-plugin-bundles.md: 8613e600ad633818abb4319e614230340c3b3876
-2026-08-05-profile-plugin-bundles.zh.md: 3a35f944e115371b5f4702bbe81ec9bc3c314ef0
+2026-08-05-profile-plugin-bundles.md: f183fc5ff5f3c8d850e913d9a9b836f075da7a3b
+2026-08-05-profile-plugin-bundles.zh.md: 294082249c2d3244321cb7efabf0eb286d11ef46
--- a/.agents/notes/implemented/architecture/2026-08-05-profile-plugin-bundles.md
+++ b/.agents/notes/implemented/architecture/2026-08-05-profile-plugin-bundles.md
@@ -12,7 +12,7 @@ The `dsh` launcher hardcoded its compositions: `base.cordis.yml` + `web.cordis.y

 Everything becomes a **profile**: a directory `$DSH_HOME/profiles/<name>` with a `package.json` (pnpm-managed out-of-tree plugin `dependencies` plus the profile manifest `dsh.profile` with its ordered `bundles` layer list) and a user `cordis.patch.yml`. A **bundle** is an npm package declaring `"dsh": { "bundle": { "patch": "./cordis.patch.yml" } }`; the two manifest kinds live under distinct `dsh.profile` / `dsh.bundle` keys so a package.json states which role it plays. The tree composes over an empty root by applying each bundle's patch in `dsh.profile.bundles` order, then the user layer, then `--patch` overlays, then flag patches — one `applyEntryPatches` call, identical for boot, flag derivation, and `--dump-config`.

-The shipped compositions became bundles: `@deepseek-ai/dsh-base` (the former base rows as one insert), `@deepseek-ai/dsh-web-app` (the former web overlay plus a runtime glue plugin that owns what used to be launcher code — frontend-dist resolution, the web-surface prompt section, bash runtime variables, the URL line), and `@deepseek-ai/dsh-headless` (a one-shot runner plugin over base + web-app). `dsh web` stays as an alias for `--profile web` carrying the Web flag family; `dsh run [--profile <name>] "task"` owns one-shot execution and defaults to the headless profile, while generic `dsh --profile <name>` boots without a task; `dsh --config` is removed (its uses migrate to `--patch`). `dsh plugin --profile <name> <args...>` is a thin pnpm forwarder that initializes the profile and reconciles `dsh.profile.bundles` after `add`/`remove` (a bundle-less package warns and stays a plain dependency).
+The shipped bundles are `@deepseek-ai/dsh-base` (shared core rows), `@deepseek-ai/dsh-web-app` (browser Host rows and Web runtime glue), and `@deepseek-ai/dsh-headless` (a direct one-shot runner over base, without web-app). `dsh web` is the Web-flag alias for `--profile web`; `dsh run [--profile <name>] "task"` owns one-shot execution and defaults to the headless profile; generic `dsh --profile <name>` boots without a task. Patch overlays use `--patch`. `dsh plugin --profile <name> <args...>` is a thin pnpm forwarder that initializes the profile and reconciles `dsh.profile.bundles` with installed bundle declarations; a package without a bundle declaration remains a plain dependency. [Headless as a direct core front door](2026-08-09-headless-direct-core-front-door.md) owns the headless composition contract.

 The [`dsh run` command decision](../feature/2026-08-08-dsh-run-headless-command.md) owns the one-shot grammar; this note owns the profile composition it selects.

--- a/.agents/notes/implemented/architecture/2026-08-05-profile-plugin-bundles.zh.md
+++ b/.agents/notes/implemented/architecture/2026-08-05-profile-plugin-bundles.zh.md
@@ -12,7 +12,7 @@ Status: implemented

 一切都变成 **profile**：即目录 `$DSH_HOME/profiles/<name>`，其中包含一个 `package.json`（pnpm 管理的树外插件 `dependencies`，加上 profile manifest（元数据清单）`dsh.profile` 及其有序的 `bundles` 层列表）和一份用户 `cordis.patch.yml`。**组合包**（bundle）是声明了 `"dsh": { "bundle": { "patch": "./cordis.patch.yml" } }` 的 npm 包；两种 manifest 分别位于互不相同的 `dsh.profile` / `dsh.bundle` 键下，因此一份 package.json 能说明自己扮演哪种角色。配置树在空的根之上组合：按 `dsh.profile.bundles` 顺序应用每个组合包的 patch，然后是用户层，然后是 `--patch` overlay，最后是 flag patch——全部收敛为一次 `applyEntryPatches` 调用，启动、flag 派生与 `--dump-config` 使用完全相同的路径。

-已交付的组合改造成了组合包：`@deepseek-ai/dsh-base`（原有基础行合并为一次插入）、`@deepseek-ai/dsh-web-app`（原 web overlay，外加一个接管原启动器代码的运行时粘合插件——前端 dist 解析、web 表层提示词段落、bash 运行时变量、URL 行）、`@deepseek-ai/dsh-headless`（叠加在 base + web-app 之上的一次性 runner 插件）。`dsh web` 保留为携带 Web flag 家族的 `--profile web` 别名；`dsh run [--profile <name>] "task"` 负责一次性执行，默认使用 headless profile，而通用的 `dsh --profile <name>` 只启动 profile，不携带任务；`dsh --config` 被移除（其用途迁移到 `--patch`）。`dsh plugin --profile <name> <args...>` 是一层薄薄的 pnpm 转发器，负责初始化 profile，并在 `add`／`remove` 后调和 `dsh.profile.bundles`（没有组合包声明的包会给出警告，保持为普通依赖）。
+随附的组合包是 `@deepseek-ai/dsh-base`（共享核心配置行）、`@deepseek-ai/dsh-web-app`（浏览器 Host 配置行与 Web 运行时粘合层）和 `@deepseek-ai/dsh-headless`（直接叠加在 base 上且不含 web-app 的一次性 runner）。`dsh web` 是携带 Web flag 家族的 `--profile web` 别名；`dsh run [--profile <name>] "task"` 负责一次性执行，默认使用 headless profile；通用的 `dsh --profile <name>` 启动 profile 而不携带任务。patch overlay 使用 `--patch`。`dsh plugin --profile <name> <args...>` 是一层薄薄的 pnpm 转发器，负责初始化 profile，并依据已安装包的组合包声明调和 `dsh.profile.bundles`；没有组合包声明的包保持为普通依赖。[Headless 作为直接 core 前门](2026-08-09-headless-direct-core-front-door.md)负责 headless 组合契约。

 [`dsh run` 命令决策](../feature/2026-08-08-dsh-run-headless-command.md)负责一次性语法；本 Agent Note 负责该语法所选择的 profile 组合。

--- a/.agents/notes/implemented/architecture/2026-08-09-headless-direct-core-front-door.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-08-09-headless-direct-core-front-door.i18n.yaml
@@ -0,0 +1,6 @@
+# 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 .agents/notes/implemented/architecture/2026-08-09-headless-direct-core-front-door.md
+2026-08-09-headless-direct-core-front-door.md: 875939b424059907949e350d50d88ded331f3dc9
+2026-08-09-headless-direct-core-front-door.zh.md: 7de5efbe172c0c43c03d55724d27e32d08c11e9f
--- a/.agents/notes/implemented/architecture/2026-08-09-headless-direct-core-front-door.md
+++ b/.agents/notes/implemented/architecture/2026-08-09-headless-direct-core-front-door.md
@@ -0,0 +1,44 @@
+# Agent Note: headless is a direct core front door
+
+Status: implemented
+
+English | [中文](2026-08-09-headless-direct-core-front-door.zh.md)
+
+## Problem
+
+The `headless` product contract is one local task with final assistant text on stdout, a success-sensitive exit code, empty stderr on success, and no listening port. A composition containing Workspace Host services, ApiProxy, HTTP, the Web runtime, or browser plugins contradicts that contract and makes local completion depend on an unrelated transport tree.
+
+The direct front door still needs the same deployment model state as Web-created Agents. A separate provider/model default would give one deployment two answers, while deriving completion before the Agent and Session persistence are quiescent permits stdout and the exit code to observe incomplete state.
+
+## Decision
+
+The shipped `headless` profile contains `dsh-base` and `dsh-headless`. The headless bundle supplies its persona and tool mode, disables HMR, mounts the Code Mode worker explicitly, and inserts `headless-runner`. Its tree contains no `@deepseek-ai/dsh-host-*` package, ApiProxy, HTTP server, Web runtime, or browser client. Code Mode and Session persistence are one-shot Agent capabilities independent of Web presentation.
+
+`headless-runner` is a direct core front door. After Loader settlement, it reads `ctx.agentDefaultModel.currentSelection()`, creates a fresh persisted Agent through `ctx.agents.create`, installs that `ModelSelection` in the Agent scope, waits for startup quiescence, anchors the Session sequence, submits one ordinary user message, and waits for quiescence again. It awaits `ctx.sessions.flush`, folds its durable event interval for the last non-empty assistant text and final `turn/end` reason, writes the text plus one newline to stdout, and requests bounded launcher shutdown with exit 0 exactly when the reason is `completed`. A terminal `error` reason writes its durable code and message to stderr; unexpected driver failures also use stderr and exit 1.
+
+`@deepseek-ai/dsh-agent-default-model` owns the transport-independent default used for an Agent without a session-local selection. `AgentDefaultModelService` provides `ctx.agentDefaultModel` and registers the `agent-default-model` Settings section. Composition config supplies `{provider, model}`; user settings may also supply `reasoningEffort`. `currentSelection()` returns the live complete selection and `saveSelection()` writes it as a complete section, so a selection without an effort clears any stored effort. `dsh-base` supplies the composition entry. Direct and ApiProxy front doors consume this service; ApiProxy alone owns session-local precedence, model validation, and persistence of accepted Web selections.
+
+`loadProfile` recognizes the exact installation-owned headless tuple (`dsh-base`, `dsh-web-app`, `dsh-headless`) and normalizes it to the shipped headless template while preserving every other manifest field. Extra, missing, or reordered bundle lists are user-owned and remain untouched.
+
+This note owns the headless transport and completion contracts. [`dsh run` owns one-shot headless execution](../feature/2026-08-08-dsh-run-headless-command.md) owns the command grammar, [GUI layering and RPC protocol](2026-07-19-gui-layering-and-rpc-protocol.md) owns browser gateway boundaries, [web config-tree boot and transport layering](2026-07-24-web-config-tree-boot-and-transport-layering.md) owns the Web tree, and [the default model follows the picker](../feature/2026-08-07-default-model-follows-the-picker.md) owns persistence of the shared Agent default.
+
+## Verification
+
+Package tests use the real Session store and Agent registry around a scripted Agent factory to pin idle-to-idle aggregation, late asynchronous completion, terminal model diagnostics, other non-completed exits, direct failures, Loader-time disposal, and flush-before-exit ordering. The keyless assembled snapshots drive `dsh run` through a replayed tool round trip, record direct user-message provenance, and expose a terminal model failure on stderr. Built-bin acceptance reaches a mock provider through the published entry and requires final text on stdout, exit 0, and empty stderr. Config-dump acceptance excludes every Host, Web, and Client package from the shipped headless tree; PTY shutdown coverage requires no observation line and bounded disposal.
+
+## Alternatives considered
+
+| Alternative | Contract mismatch |
+|---|---|
+| Keep `dsh-web-app` but suppress its observation line | The process still opens a port and carries the Host, Web, and browser trees. |
+| Build a Host-only one-shot bundle around ApiProxy | ApiProxy is a client protocol gateway; a local one-shot front door has no client boundary. |
+| Use `InProcessApiClient` for product-level protocol coverage | Product execution would depend on an unrelated protocol solely to exercise that protocol. |
+| Give headless a separate provider/model config | Direct and Web creation would have independent defaults and persistence. |
+| Omit Code Mode and Session persistence | Both capabilities belong to one-shot Agent execution rather than Web presentation. |
+| Normalize every tuple containing Web and headless bundles | Bundle lists are an extension surface; only the exact installation-owned tuple is safe to classify. |
+
+## Consequences
+
+`dsh run` provides a local Agent task rather than browser observation, Host APIs, or HTTP. Users who need those capabilities choose `dsh web`. Successful stderr is empty, completion follows durable flush, and the persisted Session remains available to later tooling. Its initial user message has direct user provenance and therefore carries no ApiProxy `rpcId`.
+
+ApiProxy carrier coverage stays in the ApiProxy package. Custom one-shot profiles may include Host or Web bundles explicitly, while the shipped profile and the recognized installation-owned tuple are Web-free.
--- a/.agents/notes/implemented/architecture/2026-08-09-headless-direct-core-front-door.zh.md
+++ b/.agents/notes/implemented/architecture/2026-08-09-headless-direct-core-front-door.zh.md
@@ -0,0 +1,44 @@
+# Agent Note: headless 是直接使用核心服务的入口
+
+Status: implemented
+
+[English](2026-08-09-headless-direct-core-front-door.md) | 中文
+
+## 问题
+
+`headless` 的产品契约是一个本地任务：最终 assistant 文本写入 stdout，退出状态反映成功与否，成功时 stderr 为空，并且不打开监听端口。包含 Workspace Host 服务、ApiProxy、HTTP、Web 运行时或浏览器插件的组合违背这一契约，也使本地完成状态依赖无关的传输树。
+
+直接前门仍需要与 Web 所创建 Agent 相同的部署模型状态。独立的提供方／模型默认值会让同一部署产生两种答案，而在 Agent 与会话持久化完全停稳之前推导完成状态，会让 stdout 与退出状态观察到不完整状态。
+
+## 决策
+
+随附的 `headless` profile 包含 `dsh-base` 与 `dsh-headless`。headless 组合包提供自身的 persona 与工具模式、禁用 HMR（热模块替换）、显式挂载 Code Mode worker，并插入 `headless-runner`。其插件树不包含任何 `@deepseek-ai/dsh-host-*` 包、ApiProxy、HTTP server、Web 运行时或浏览器客户端。Code Mode 与会话持久化均为独立于 Web 呈现的一次性 Agent 能力。
+
+`headless-runner` 是直接使用核心服务的入口。Loader 完全加载后，它读取 `ctx.agentDefaultModel.currentSelection()`，通过 `ctx.agents.create` 创建一个新的持久化 Agent，在 Agent 作用域中安装该 `ModelSelection`，等待启动工作完全停稳，锚定会话事件序号，提交一条普通用户消息，再次等待完全停稳。随后，它等待 `ctx.sessions.flush`，折叠自身持有的持久事件区间，以取得最后一条非空 assistant 文本和最终 `turn/end` 结束原因，将文本连同一个换行写入 stdout，并且仅在结束原因为 `completed` 时请求启动器以退出状态 0 有界关闭。结束原因为 `error` 时，其持久化错误码与消息写入 stderr；驱动器的意外失败也写入 stderr 并以 1 退出。
+
+`@deepseek-ai/dsh-agent-default-model` 拥有与传输无关的默认值，供没有会话级选择的 Agent 使用。`AgentDefaultModelService` 提供 `ctx.agentDefaultModel` 并注册 `agent-default-model` Settings 分节。组合配置提供 `{provider, model}`，用户设置还可以提供 `reasoningEffort`。`currentSelection()` 返回当前的完整选择，`saveSelection()` 则写入完整分节，因此不含强度的选择会清除已存强度。`dsh-base` 提供组合条目。直接前门与 ApiProxy 前门均消费该服务；只有 ApiProxy 负责会话级优先级、模型校验与已接受 Web 选择的持久化。
+
+`loadProfile` 识别安装过程拥有的精确 headless 元组（`dsh-base`、`dsh-web-app`、`dsh-headless`），将其规范化为随附的 headless 模板，并保留 manifest（元数据清单）的其他所有字段。带额外项、缺少项或顺序不同的组合包列表归用户所有，保持不变。
+
+本 Agent Note 负责 headless 的传输与完成契约。[`dsh run` 负责一次性 headless 执行](../feature/2026-08-08-dsh-run-headless-command.md)负责命令语法，[GUI 分层与 RPC 协议](2026-07-19-gui-layering-and-rpc-protocol.md)负责浏览器网关边界，[Web 配置树启动与传输分层](2026-07-24-web-config-tree-boot-and-transport-layering.md)负责 Web 插件树，[默认模型跟随选择器](../feature/2026-08-07-default-model-follows-the-picker.md)负责共享 Agent 默认值的持久化。
+
+## 验证
+
+包测试围绕脚本化 Agent 工厂使用真实的会话存储与 Agent 注册表，固定空闲态到空闲态的聚合、延迟异步完成、终止态模型诊断、其他未完成退出、直接失败、Loader 加载期间的 dispose（资源释放），以及退出前 flush 的顺序。组装后的无密钥快照通过回放的工具往返驱动 `dsh run`，记录直接用户消息的来源，并在 stderr 暴露终止态模型失败。构建后二进制验收通过已发布入口访问 mock 提供方，并要求最终文本出现在 stdout、退出状态为 0 且 stderr 为空。配置转储验收排除随附 headless 树中的所有 Host、Web 与 Client 包；PTY 关闭覆盖要求不出现观察行，并在有界时间内完成 dispose。
+
+## 考虑过的替代方案
+
+| 替代方案 | 契约不匹配之处 |
+|---|---|
+| 保留 `dsh-web-app`，但隐藏观察行 | 进程仍会打开端口并携带 Host、Web 与浏览器插件树。 |
+| 围绕 ApiProxy 构建纯 Host 一次性组合包 | ApiProxy 是客户端协议网关，而本地一次性前门没有客户端边界。 |
+| 使用 `InProcessApiClient` 实现产品级协议覆盖 | 产品执行会仅为测试无关协议而依赖该协议。 |
+| 为 headless 单独提供提供方／模型配置 | 直接创建与 Web 创建会拥有彼此独立的默认值和持久化。 |
+| 省略 Code Mode 与会话持久化 | 两项能力都属于一次性 Agent 执行，而不是 Web 呈现。 |
+| 规范化所有包含 Web 与 headless 组合包的元组 | 组合包列表是扩展面；只有精确的安装过程所属元组可以安全分类。 |
+
+## 后果
+
+`dsh run` 提供本地 Agent 任务，而不是浏览器观察、Host API 或 HTTP。需要这些能力的用户选择 `dsh web`。成功时 stderr 为空，完成结果在持久化 flush 后推导，持久化会话仍可供后续工具使用。初始用户消息直接来自用户，因此不携带 ApiProxy `rpcId`。
+
+ApiProxy 载体覆盖保留在 ApiProxy 包中。自定义一次性 profile 可以显式包含 Host 或 Web 组合包；随附 profile 与可识别的安装过程所属元组均不含 Web。