diff --git a/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.i18n.yaml b/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.i18n.yaml
index 1d7dfa653a..d437141cd1 100644
--- a/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.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
-2026-07-24-dsh-commander-argument-adapter.md: 1da81a1bdfc64fb6b7565c4881a7be25fb619fd4
-2026-07-24-dsh-commander-argument-adapter.zh.md: 5835d859ea8abf321a3d57bda3218f76569f8c7a
+2026-07-24-dsh-commander-argument-adapter.md: c304cac5870af838794df85a18be63ca85ce06eb
+2026-07-24-dsh-commander-argument-adapter.zh.md: fb16f89c84c27d42f7aa638c5b019c52ce51068e
diff --git a/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.md b/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.md
index 1da81a1bdf..c304cac587 100644
--- a/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.md
+++ b/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.md
@@ -12,7 +12,7 @@ The `dsh` CLI entry (`apps/cli`) parsed argv in three hand-rolled idioms that di
 
 Argv is parsed once, in `apps/cli/src/args.ts`, through a Commander adapter (the same parser the SDK bins — `create-sdk`, `dsh-scripts` — already standardize on). `parseDshArgs(argv, version)` returns a discriminated `DshInvocation` union of the three real modes: `{ mode: 'tui', config?, resume? }`, `{ mode: 'headless', prompt }`, or `{ mode: 'web', host?, port?, dev }`. It does **not** model help/version/errors as data: Commander owns those, printing usage or the diagnostic and exiting at the point of failure. `exitOverride()` turns each into a thrown `CommanderError` carrying the intended code (0 for help/version, 1 for a parse or domain error), which one `try/catch` in `parseDshArgs` turns into `process.exit`.
 
-`bin.ts` calls the adapter once and switches on `mode` (closed union, `satisfies never` default), dynamic-importing only the chosen mode's module; only a valid, non-help invocation reaches the switch, so it has no help/version/error cases. Each mode module consumes already-parsed values: `runTui(config, resume)`, `runHeadless(task)`, `runWeb(host, port, dev)` — none re-reads argv. It is **one Commander program**: the default surface (no subcommand) carries option-only flags — `--config <path>`, `-p/--prompt <task>`, `--resume <id>` — and `web` is a real `program.command('web')` subcommand. The default surface takes no positional argument, which is what lets `web` be a real subcommand without a positional collision, so `dsh --help` lists `web` natively (no hand-pasted command text). The default action and the `web` action set the resolved mode, then bail via `command.error(...)` (print + exit 1) on the domain checks Commander cannot express: `--prompt` selects headless and rejects an empty task or a `--config`/`--resume` alongside it rather than silently dropping a TUI input; an empty `--resume=` id fails loud (agent-loop treats `''` as no-resume). `dsh web`'s `--host`/`--port` are unvalidated pass-through overrides: the adapter assigns no default and does no validation, only `Number`-coercing the port string (the schema wants a number). The `dsh-host-webserver` schemastery `Config` (`host` a `127.0.0.1`/`0.0.0.0` literal union, `port` a natural ≤ 65535) is the single source of both the default (the shipped `apps/cli/cordis.yml` `webserver` row stands when a flag is absent) and validity — `AppCLIEntry` patches an explicit flag straight into that row, so a bad host/port fails loud at the schema on boot, not at parse. `--dev` mounts the client HMR driver and bundle watch. A repeated `--resume`, or a following flag captured as a `--resume`/`--prompt` value, is Commander's standard behavior (last-wins / next-token) and is left alone; a bad id fails loud downstream when the session cannot load. `--version` reads this app's `package.json`.
+`bin.ts` calls the adapter once and switches on `mode` (closed union, `satisfies never` default), dynamic-importing only the chosen mode's module; only a valid, non-help invocation reaches the switch, so it has no help/version/error cases. Each mode module consumes already-parsed values: `runTui(config, resume)`, `runHeadless(task)`, `runWeb(host, port, dev)` — none re-reads argv. It is **one Commander program**: the default surface (no subcommand) carries option-only flags — `--config <path>`, `-p/--prompt <task>`, `--resume <id>` — and `web` is a real `program.command('web')` subcommand. The default surface takes no positional argument, which is what lets `web` be a real subcommand without a positional collision, so `dsh --help` lists `web` natively (no hand-pasted command text). The default action and the `web` action set the resolved mode, then bail via `command.error(...)` (print + exit 1) on the domain checks Commander cannot express: `--prompt` selects headless and rejects an empty task or a `--config`/`--resume` alongside it rather than silently dropping a TUI input; an empty `--resume=` id fails loud (agent-loop treats `''` as no-resume). Commander parses the default-surface options on either side of the `web` token into `program.opts()`; since `web` shares none of them, the `web` action rejects a leaked `--config`/`-p`/`--resume` (`dsh web -p x`, `dsh --config c.yml web`) rather than silently serving and dropping it. `dsh web`'s `--host`/`--port` are unvalidated pass-through overrides: the adapter assigns no default and does no validation, only `Number`-coercing the port string (the schema wants a number). The `dsh-host-webserver` schemastery `Config` (`host` a `127.0.0.1`/`0.0.0.0` literal union, `port` a natural ≤ 65535) is the single source of both the default (the shipped `apps/cli/cordis.yml` `webserver` row stands when a flag is absent) and validity — `AppCLIEntry` patches an explicit flag straight into that row, so a bad host/port fails loud at the schema on boot, not at parse. `--dev` mounts the client HMR driver and bundle watch. A repeated `--resume`, or a following flag captured as a `--resume`/`--prompt` value, is Commander's standard behavior (last-wins / next-token) and is left alone; a bad id fails loud downstream when the session cannot load. `--version` reads this app's `package.json`.
 
 `dsh` takes no positional argument. `--config <path>` names an alternate cordis tree to boot instead of the shipped default; it exists only so the demo/test call sites (`demo:cordis`, `demo:code-mode`, the keyless PTY smokes) can point the shipped bin at an example tree. A bare `dsh` boots the shipped tree plus the `~/.dsh/config.yaml` personal overlay; a real user never passes `--config`.
 
diff --git a/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.zh.md b/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.zh.md
index 5835d859ea..fb16f89c84 100644
--- a/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.zh.md
+++ b/.agents/notes/implemented/architecture/2026-07-24-dsh-commander-argument-adapter.zh.md
@@ -12,7 +12,7 @@ Status: implemented
 
 argv 只在 `apps/cli/src/args.ts` 中解析一次，并使用 Commander 适配器（SDK bin `create-sdk`、`dsh-scripts` 已经统一采用的同一解析器）。`parseDshArgs(argv, version)` 返回仅包含三种实际模式的判别式 `DshInvocation` 联合类型：`{ mode: 'tui', config?, resume? }`、`{ mode: 'headless', prompt }` 或 `{ mode: 'web', host?, port?, dev }`。它**不会**将帮助、版本信息或错误建模为数据：这些情况由 Commander 处理，在触发处打印用法或诊断信息并退出。`exitOverride()` 会将每种情况转为抛出的 `CommanderError`，并携带预期退出码（帮助或版本为 0，解析错误或领域错误为 1）；唯一一处 `try/catch` 位于 `parseDshArgs` 中，捕获错误后调用 `process.exit`。
 
-`bin.ts` 只调用适配器一次，并对 `mode` 做分支切换（封闭联合类型，默认分支为 `satisfies never`），仅动态导入所选模式对应的模块；只有合法的非帮助请求才会进入这段分支逻辑，因此其中没有帮助、版本或错误分支。每个模式模块只消费已解析好的值：`runTui(config, resume)`、`runHeadless(task)`、`runWeb(host, port, dev)`，都不会再次读取 argv。整个 CLI 由**单个 Commander 程序**实现：默认接口（不使用子命令时）只包含选项标志——`--config <path>`、`-p/--prompt <task>`、`--resume <id>`——而 `web` 是通过 `program.command('web')` 定义的真正子命令。默认接口不接受位置参数，因此 `web` 可以成为真正的子命令且不会发生位置参数冲突，`dsh --help` 也会原生列出 `web`，无需手工拼接命令文本。默认命令和 `web` 子命令的处理函数会设置解析得到的模式，随后对 Commander 无法表达的领域校验调用 `command.error(...)` 立即终止（打印信息并以退出码 1 退出）：`--prompt` 选择 headless 模式；如果任务为空，或调用中还包含 `--config` 或 `--resume`，它会拒绝调用，而不会静默丢弃 TUI 输入；空的 `--resume=` id 会显式失败（agent-loop 把 `''` 视为不恢复）。`dsh web` 的 `--host`/`--port` 是未经校验、直接透传的覆盖值：适配器既不设置默认值，也不执行校验，只使用 `Number` 将端口字符串转换为数字（schema 要求该值为数字）。`dsh-host-webserver` 的 schemastery `Config`（`host` 是 `127.0.0.1`/`0.0.0.0` 字面量联合类型，`port` 是不大于 65535 的自然数）是默认值与有效性的唯一真源：未提供标志时，随产品提供的 `apps/cli/cordis.yml` 中 `webserver` 配置项保持原值；`AppCLIEntry` 将显式标志的值直接写入该配置项，因此无效的 host/port 会在启动时触发 schema 校验并显式失败，而不是在参数解析阶段失败。`--dev` 会挂载客户端 HMR（热模块替换）驱动，并启用构建产物监视。重复提供 `--resume`，或后续标志被捕获为 `--resume` 或 `--prompt` 的值，都是 Commander 的标准行为（最后一次取值生效／将下一 token 作为值），本适配器不作干预；无效 id 会在下游无法加载会话时显式失败。`--version` 读取本应用的 `package.json`。
+`bin.ts` 只调用适配器一次，并对 `mode` 做分支切换（封闭联合类型，默认分支为 `satisfies never`），仅动态导入所选模式对应的模块；只有合法的非帮助请求才会进入这段分支逻辑，因此其中没有帮助、版本或错误分支。每个模式模块只消费已解析好的值：`runTui(config, resume)`、`runHeadless(task)`、`runWeb(host, port, dev)`，都不会再次读取 argv。整个 CLI 由**单个 Commander 程序**实现：默认接口（不使用子命令时）只包含选项标志——`--config <path>`、`-p/--prompt <task>`、`--resume <id>`——而 `web` 是通过 `program.command('web')` 定义的真正子命令。默认接口不接受位置参数，因此 `web` 可以成为真正的子命令且不会发生位置参数冲突，`dsh --help` 也会原生列出 `web`，无需手工拼接命令文本。默认命令和 `web` 子命令的处理函数会设置解析得到的模式，随后对 Commander 无法表达的领域校验调用 `command.error(...)` 立即终止（打印信息并以退出码 1 退出）：`--prompt` 选择 headless 模式；如果任务为空，或调用中还包含 `--config` 或 `--resume`，它会拒绝调用，而不会静默丢弃 TUI 输入；空的 `--resume=` id 会显式失败（agent-loop 把 `''` 视为不恢复）。Commander 会将 `web` token 前后的默认接口选项都解析进 `program.opts()`；由于 `web` 不与默认接口共用任何选项，`web` 子命令的处理函数会拒绝误入的 `--config`/`-p`/`--resume`（`dsh web -p x`、`dsh --config c.yml web`），而不是静默启动服务并丢弃这些选项。`dsh web` 的 `--host`/`--port` 是未经校验、直接透传的覆盖值：适配器既不设置默认值，也不执行校验，只使用 `Number` 将端口字符串转换为数字（schema 要求该值为数字）。`dsh-host-webserver` 的 schemastery `Config`（`host` 是 `127.0.0.1`/`0.0.0.0` 字面量联合类型，`port` 是不大于 65535 的自然数）是默认值与有效性的唯一真源：未提供标志时，随产品提供的 `apps/cli/cordis.yml` 中 `webserver` 配置项保持原值；`AppCLIEntry` 将显式标志的值直接写入该配置项，因此无效的 host/port 会在启动时触发 schema 校验并显式失败，而不是在参数解析阶段失败。`--dev` 会挂载客户端 HMR（热模块替换）驱动，并启用构建产物监视。重复提供 `--resume`，或后续标志被捕获为 `--resume` 或 `--prompt` 的值，都是 Commander 的标准行为（最后一次取值生效／将下一 token 作为值），本适配器不作干预；无效 id 会在下游无法加载会话时显式失败。`--version` 读取本应用的 `package.json`。
 
 `dsh` 不接受位置参数。`--config <path>` 指定一份替代 Cordis 配置树，系统启动该配置树而不是随产品提供的默认配置树；该标志仅用于让演示和测试调用点（`demo:cordis`、`demo:code-mode`、无密钥 PTY 冒烟测试）通过随产品提供的 bin 启动一份示例树。直接运行 `dsh` 会启动随产品提供的配置树，并叠加 `~/.dsh/config.yaml` 个人覆盖；实际用户从不传入 `--config`。
 
diff --git a/apps/cli/src/args.ts b/apps/cli/src/args.ts
index 8a0fd5f326..87cca9ce19 100644
--- a/apps/cli/src/args.ts
+++ b/apps/cli/src/args.ts
@@ -112,7 +112,17 @@ export function parseDshArgs(argv: readonly string[], version: string): DshInvoc
     .option('--host <host>', 'override the config bind host (127.0.0.1 or 0.0.0.0)')
     .option('--port <port>', 'override the config listen port (0 requests an OS-assigned port)')
     .option('--dev', 'mount the client HMR driver and watch plugin bundles for rebuilds')
-    .action((options: WebOptions) => { resolved = resolveWeb(options) })
+    .action((options: WebOptions) => {
+      // Commander parses the parent (default-surface) options on either side of
+      // the subcommand into `program.opts()`. `web` shares none of them, so a
+      // leaked `--config`/`-p`/`--resume` is a mistyped invocation that must
+      // fail loud rather than silently start the web server and drop it.
+      const parent = program.opts<{ config?: string; prompt?: string; resume?: string }>()
+      if (parent.config !== undefined || parent.prompt !== undefined || parent.resume !== undefined) {
+        program.error('error: web takes none of --config, -p/--prompt, or --resume')
+      }
+      resolved = resolveWeb(options)
+    })
 
   try {
     program.parse(argv, { from: 'user' })
diff --git a/apps/cli/tests/args.spec.ts b/apps/cli/tests/args.spec.ts
index f186cafca7..a591b80f6a 100644
--- a/apps/cli/tests/args.spec.ts
+++ b/apps/cli/tests/args.spec.ts
@@ -47,6 +47,11 @@ describe('parseDshArgs', () => {
     expect(exitCode(['-p', 'x', '--resume', 's'])).toBe(1)
     expect(exitCode(['--bogus'])).toBe(1)
     expect(exitCode(['bogus-positional'])).toBe(1)
+    // A default-surface flag on either side of `web` leaks into program.opts()
+    // but the web subcommand shares none of them: reject rather than serve.
+    expect(exitCode(['web', '-p', 'task'])).toBe(1)
+    expect(exitCode(['web', '--resume', 's'])).toBe(1)
+    expect(exitCode(['--config', 'c.yml', 'web'])).toBe(1)
   })
 
   it('exits 0 for --help (disclosing web) and --version', () => {
diff --git a/packages/examples/tui-demo/README.md b/packages/examples/tui-demo/README.md
index b6c80687a4..6af2addb8f 100644
--- a/packages/examples/tui-demo/README.md
+++ b/packages/examples/tui-demo/README.md
@@ -49,7 +49,7 @@ Fresh runs mint a `main-session-<uuid>` session id and pass it to both the TUI a
 
 ## Front door
 
-This package ships no bin. The [`dsh`](../../../apps/cli/README.md) CLI is the terminal front door: `dsh [path-to-cordis.yml]` boots a leaf config that mounts this bundle (defaulting to the shipped `examples/tui-agent/cordis.yml`), loads the optional cwd `.env`, drives the Cordis Loader, and waits for the full plugin tree. The repository installs Loader's optional native helper, so bare package specifiers resolve under plain Node.
+This package ships no bin. The [`dsh`](../../../apps/cli/README.md) CLI is the terminal front door: bare `dsh` boots the shipped `examples/tui-agent/cordis.yml` (which mounts this bundle), and `dsh --config <path-to-cordis.yml>` boots an alternate leaf config that mounts it. It loads the optional cwd `.env`, drives the Cordis Loader, and waits for the full plugin tree. The repository installs Loader's optional native helper, so bare package specifiers resolve under plain Node.
 
 ## Example leaf