docs(subagent): document explicit product provider opt-in

packages/subagent/subagent-codex/README.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 packages/subagent/subagent-codex/README.md
-README.md: 271130f41a8d4c9f22c5dfb030f60c3addea51c7
-README.zh.md: 48fa219dcf2c9f55359d5b65d9a9eddb5320753a
+README.md: d2cce430c4bc80378b77240ce2dd7c6c07fea986
+README.zh.md: 92986e3d3d6c9ff786db968004ce2f533949a5f9

packages/subagent/subagent-codex/README.md

@@ -27,7 +27,9 @@ The provider advertises no optional start-time capabilities and reports `inherit
 
 Production resolves `codex` from `PATH` and uses the host's native Codex configuration and authentication. The plugin does not install Codex, select a model, create `CODEX_HOME`, log in, or probe a version. Credential-shaped ambient variables are removed by the subprocess seam, so an API key intended for the child must be supplied explicitly in `env`; ordinary ambient values such as `PATH` and `HOME` remain available unless overridden.
 
-Shipped profiles load this provider once on the host and start no Codex process until a tool call. Full Agent Presets carry the tool row below with `disabled: true`; copy a preset and remove that field to expose `subagent_codex` only to agents composed from the copy. Its `one-shot` policy keeps omitted or `false` `run_in_background` calls in the foreground, while explicit `true` returns a parent-owned Job id for `job_output` or `job_kill`. Shipped full profiles already provide the job registry and controls; a custom composition must load the same generic job provider and consumer when it enables this background route.
+Production `dsh` does not install or mount this optional provider. A Profile that opts in must install `@deepseek-ai/dsh-subagent-codex` and mount it once on the host plane; loading the provider starts no Codex process until a tool call. Full Agent Presets carry the tool row below with `disabled: true`; copy a preset and remove that field to expose `subagent_codex` only to agents composed from the copy. Its `one-shot` policy keeps omitted or `false` `run_in_background` calls in the foreground, while explicit `true` returns a parent-owned Job id for `job_output` or `job_kill`. The base host and full presets already provide the generic Job registry and controls.
+
+The standalone composition below shows the complete explicit capability. A Profile based on `@deepseek-ai/dsh-base` keeps its existing Job rows, adds the product provider row, and enables the preset tool row instead of mounting duplicate Job services.
 
 ```yaml
 - id: subagent-codex

packages/subagent/subagent-codex/README.zh.md

@@ -27,7 +27,9 @@
 
 生产环境会从 `PATH` 中解析 `codex`，并使用宿主机原生的 Codex 配置与身份验证。本插件不安装 Codex、不选择模型、不创建 `CODEX_HOME`、不执行登录，也不探测版本。子进程 seam 会移除具有凭证特征的环境变量，因此供子进程使用的 API 密钥必须在 `env` 中显式提供；除非被覆盖，`PATH` 和 `HOME` 等普通环境变量值仍然可用。
 
-随附 profile 会在宿主上加载一次该提供方，而且在工具被调用前不会启动 Codex 进程。完整 Agent Preset 携带下列工具行并设置 `disabled: true`；复制一个 preset 后删除该字段，即可只向由该副本组装的 agent 暴露 `subagent_codex`。其 `one-shot` 策略会让省略 `run_in_background` 或传入 `false` 的调用继续在前台等待，而显式传入 `true` 会返回由父 agent 拥有的 Job ID，供 `job_output` 或 `job_kill` 使用。随附完整 profile 已提供作业注册表和控制工具；自定义组装若启用该后台路径，也必须加载同一通用作业提供方与消费方。
+生产 `dsh` 不会安装或挂载这个可选提供方。选择启用它的 Profile 必须安装 `@deepseek-ai/dsh-subagent-codex`，并在 host plane（宿主平面）挂载一次；加载提供方本身不会在工具调用前启动 Codex 进程。完整 Agent Preset 携带下列工具行并设置 `disabled: true`；复制一个 preset 后删除该字段，即可只向由该副本组装的 agent 暴露 `subagent_codex`。其 `one-shot` 策略会让省略 `run_in_background` 或传入 `false` 的调用继续在前台等待，而显式传入 `true` 会返回由父 agent 拥有的 Job ID，供 `job_output` 或 `job_kill` 使用。base host（基础宿主）与完整 preset 已提供通用作业注册表和控制工具。
+
+下列独立组装展示完整的显式能力。基于 `@deepseek-ai/dsh-base` 的 Profile 保留已有 Job 行，只新增产品提供方行并启用 preset 工具行，禁止重复挂载 Job 服务。
 
 ```yaml
 - id: subagent-codex