diff --git a/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.i18n.yaml b/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.i18n.yaml
index c8cde9db07..c7861321a0 100644
--- a/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.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/2026-07-29-request-level-llm-config-credentials.md
-2026-07-29-request-level-llm-config-credentials.md: 67baec4b70d0c754f22573d87fb4492de5ca16a4
-2026-07-29-request-level-llm-config-credentials.zh.md: 36182b77f4494c99b0fb08107f865f85322ece6c
+2026-07-29-request-level-llm-config-credentials.md: f12a2496a767decc3ce2b065f6be03009aec8992
+2026-07-29-request-level-llm-config-credentials.zh.md: 99fd90013a24746962ca02a5f4f18cdccd53f71a
diff --git a/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.zh.md b/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.zh.md
index 36182b77f4..99fd90013a 100644
--- a/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.zh.md
+++ b/.agents/notes/implemented/architecture/2026-07-29-request-level-llm-config-credentials.zh.md
@@ -26,4 +26,4 @@ Status: implemented
 
 ## 后果
 
-上手流程端到端免重启（由 `missing-credential` headless 快照与凭据轮换组合测试固定）：无密钥启动、浏览 catalog、存入密钥、再次发起提示。demo 默认挂载 `settings-local` + `credentials-local`，不再内联任何 `!!js` 密钥接线。`runLoaderSmoke` 新增 `expectedExitCode`，使按设计出现的失败面可以被固定而非被掩盖。延后事项：wire/UI 面在任何 RPC 暴露 `describe()` 之前必须对 `role('secret')` 字段脱敏；settings 层的数组仍整体替换（deepseek 的 `models` 列表）；settings 分节无法移除组合提供的 pi-ai 路由（只能覆盖或扩展）。
+上手流程端到端免重启（由 `missing-credential` headless 快照与凭据轮换组合测试固定）：无密钥启动、浏览 catalog、存入密钥、再次发起提示。demo 默认挂载 `settings-local` + `credentials-local`，不再内联任何 `!!js` 密钥接线。`runLoaderSmoke` 新增 `expectedExitCode`，使按设计出现的失败面可以被固定而非被掩盖。延后事项：wire/UI 面在任何 RPC 暴露 `describe()` 之前必须对 `role('secret')` 字段脱敏；settings 层的数组仍整体替换（deepseek 的 `models` 列表）；settings 分节无法移除组合提供的 pi-ai 路由（只能覆盖或扩展）。对该 seam 的评审随后改造了存储的所在位置与谁可以读取它，让一个请求解析出一个配置世代，并使路由替换成为原子操作（[credential boundaries note](2026-07-30-credential-boundaries-and-atomic-registration.md)）。
diff --git a/.agents/notes/implemented/architecture/2026-07-30-credential-boundaries-and-atomic-registration.i18n.yaml b/.agents/notes/implemented/architecture/2026-07-30-credential-boundaries-and-atomic-registration.i18n.yaml
new file mode 100644
index 0000000000..e7c7b51af6
--- /dev/null
+++ b/.agents/notes/implemented/architecture/2026-07-30-credential-boundaries-and-atomic-registration.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/2026-07-30-credential-boundaries-and-atomic-registration.md
+2026-07-30-credential-boundaries-and-atomic-registration.md: 837aa3e7b8ed30c66aad880ab2d76eee376e1854
+2026-07-30-credential-boundaries-and-atomic-registration.zh.md: a00c3d93d2dc0451ed29613c4a804b0e518264ed
diff --git a/.agents/notes/implemented/architecture/2026-07-30-credential-boundaries-and-atomic-registration.zh.md b/.agents/notes/implemented/architecture/2026-07-30-credential-boundaries-and-atomic-registration.zh.md
new file mode 100644
index 0000000000..a00c3d93d2
--- /dev/null
+++ b/.agents/notes/implemented/architecture/2026-07-30-credential-boundaries-and-atomic-registration.zh.md
@@ -0,0 +1,41 @@
+# Agent Note: 凭据边界、按整份快照发起的请求与原子路由注册
+
+Status: implemented
+
+[English](2026-07-30-credential-boundaries-and-atomic-registration.md) | 中文
+
+> 范围：对[请求级 LLM（大语言模型）配置 seam](2026-07-29-request-level-llm-config-credentials.md)的第三轮评审——存下来的凭据落在哪里、谁能读到它，一次请求的事实如何保持为同一代，以及一组路由如何在不留空窗的前提下更换。本 note 与 [settings 写路径 note](2026-07-30-settings-write-path-integrity.md) 配套：本轮把那篇 note 的提供方修复套用到 `credentials-local`，并把其中的写锁提升进 `dsh-atomic-write`。
+
+## 问题
+
+评审发现，凭据路径正在越过它自己划下的边界泄漏。已交付的各个面在 Cordis 启动之前就把 `$DSH_HOME/.env` 提升进了 `process.env`，于是下一次运行时，`credentials-local` 会把它自己存下的每个键都判成来自环境的只读启动覆盖：`describe()` 报告 `source: 'env'` 且 `writable: false`，`set`/`unset` 以被遮蔽为由拒绝，从 web 页面或 TUI 存入的密钥既无法轮换也无法删除，而适配器还在继续使用启动时捕获的那个值。
+
+存储自身的写路径重演了同一轮评审在 settings-local 修掉的那些缺陷（两条相互独立的链、从陈旧缓存渲染整份文件），还叠加了编辑器自己的缺陷：另一个键的带引号多行值内部的一条物理行会被读成赋值，CRLF 行尾会退化成 LF，多行条目报告 `writable: true` 而 `set` 总是抛错，`credentials/updated` 又在提交之后裸发，于是一个出错的观察者就能让一次已经落盘的写入看起来失败。
+
+在读取一侧，文件的 `0600` 权限挡得住其他 OS 用户，却挡不住模型：它的 bash 与文件系统工具就以同一个用户身份运行。
+
+与之并排的还有两个请求路径缺陷。DeepSeek 的按请求解析把连接事实保存在最后可用快照里，却仍从原始配置重新读取字面 `apiKey`，于是被 resolver 拒绝的那一代设置，照样能把自己的密钥送到上一代的端点上。配置了 `apiKeyEnv` 却解析不到值时，pi-ai 会把 `undefined` 交给 SDK，让 pi-ai 自己的环境发现拿一个毫不相干的提供方密钥完成鉴权——那是另一个租户，账单还悄悄记在它头上。而且它的路由替换是先释放旧注册、再创建新注册：只要有一条路由已被别的适配器占有，现有路由就会被全部丢掉，此后事实缓存可能与注册表中的事实相等，于是把配置改回可用状态也不会重新生效。
+
+## 决策
+
+**`$DSH_HOME/.env` 只归凭据提供方所有。**没有任何一个面会把它加载进 `process.env`。真正的启动环境，以及调用目录中由 bin 加载的 `.env`，仍然是那一层只读的环境来源，因此不挂载该提供方的组合，解析密钥的方式与从前完全一致，而存下的密钥跨重启仍然来源于文件、仍然可写——这一点由 Loader 组合中的一次真实重启来证明，而不是靠对 `describe()` 的单元断言。
+
+**受限沙箱才是唯一真正的读取边界，而且它点名到具体文件。**`SandboxExecutionPolicy` 新增 `readDenyPaths`，由 `sandbox-policy` 默认设为 `$DSH_HOME/.env`。Seatbelt 在末尾追加一条 `deny file-read* file-write*`（SBPL 中最后一条匹配规则胜出），bwrap 则在所有工作区 bind 之后把 `/dev/null` 映射到每条路径上；Landlock 的授权是纯粹的允许列表，无法从它自己对 `/` 的读取授权中减去任何东西，因此 `confine()` 报告 `partial` 强制执行，而不是声称一条该进程其实并不具备的边界。拒绝点名的是确切路径，而不是根目录：把整个 harness home 都拒掉，会连带夺走模型对自身会话日志的成文访问权。两个 README 都直白写明残留风险——在已交付的 `danger-full-access` 默认值下没有任何东西受限，这个文件只靠 OS 用户身份保护——并记下 OS 钥匙串（keychain）提供方才是真正的答案。
+
+**一次请求，一代设置。**DeepSeek 解析出的快照在端点旁一并携带凭据事实（字面密钥与引用），`resolveApiKey` 接收这份快照，而不再重新读取配置。被拒绝的那一代如今完全不再贡献任何东西。只有当一个 profile 完全没有点名凭据时，pi-ai 才交给提供方原生的发现流程；配置了引用却解析不到，就以 `MISSING_CREDENTIAL` 失败，并点名该路由与该引用。启动时的凭据探测被删除：它可能在凭据服务挂载之前就运行，并把每一种失败都报成密钥缺失，而第一次请求本就会给出准确的错误。
+
+**路由替换是注册表的操作，不是调用方的一串步骤。**`registerAdapter` 返回一个携带 `replace(providers)` 的句柄：候选集合先被完整校验（冲突、名称、提供方元数据），再在一个同步区段内完成替换。被拒绝的替换会让先前的路由保持注册并继续服务，而调用方的事实缓存只有在注册表确实持有新集合之后才会推进，因此改回可用配置时会重新生效。pi-ai 的注册事实按提供方排序，因此仅仅调换键顺序的设置文档不再算作路由变更。
+
+**已提交的凭据写入采用收容式发布。**`Credentials.notifyUpdated` 逐个监听器扇出 `credentials/updated`；同步抛错与异步 rejection 都只记日志，不改变已提交操作的结果，而带 `INVARIANT` 代码的失败会在每个监听器都运行完之后重抛——与 settings seam 处理 `settings/updated` 的形状相同。`installSettingsSection` 的清理现在会区分它的两个触发来源：提供方脱离时仍回退到组合的 entry 配置并重新推导，而消费方自身卸载时立即返回，不再在拆卸过程中重新注册路由。
+
+## 曾考虑的替代方案
+
+- **拒掉整个 harness home**——一个根目录本可覆盖凭据文档以及将来任何机密文件，但它同时也覆盖 `sessions/`，而 `DSH_SESSION_JSONL` 是一项成文的、模型可见的能力。用确切路径可以把拒绝范围限定在真正属于机密的东西上。
+- **把 `DSH_HOME` 从模型的 bash 环境中移除**——作为纵深防御考虑过，最终按「有真实代价的表演」不予采纳：默认 home 是 agent（智能体）能自行重建的成文约定，而这个变量正是正当工具链定位 harness 状态的途径。沙箱拒绝才是边界，藏起指针不是。
+- **本轮就交付 OS 钥匙串提供方**——只有这个设计能让模型的进程真正读不到机密，而它是一个带三种平台后端的兄弟包（package）。把它与本轮评审的其余工作放在一起评估体量，会拖慢其他每一项修复；它被记录为那个延后的答案，而不是一个「也许」。
+- **把 `readDenyPaths: []` 当作 opt-out**——schemastery 会把省略的数组填成 `[]`，因此在构造函数处空数组与省略无从分辨。于是空数组的含义就是「保护默认文档」；把凭据存在别处的部署自行点名它自己的路径，而在没人读取的路径上设一条拒绝并不产生任何代价。
+- **做成 `replaceRegistration(previous, next)` 服务方法**——这是评审给出的形状，但它要求调用方自行携带上一个句柄，也允许它传入一个不匹配的句柄。把 `replace` 挂在注册句柄上，让归属关系变成结构性的：只有持有路由的那一项注册才能替换它们。
+
+## 后果
+
+`update()` 邻近的行为多了成文的失败模式：凭据写入现在可能因锁截止时间到期、或磁盘文档无法解析而失败，`describe()` 对它不会改写的多行条目报告 `writable: false`。受限执行会失去对 `$DSH_HOME/.env` 的读取权限——刻意让 agent 读取自身凭据文件的部署，必须自行配置 `readDenyPaths`。`LlmAdapter` 的注册方无需改动即可继续工作（句柄本身仍可当作释放器调用），`DeepSeekConnectionOptions` 则新增了凭据字段，因此以编程方式构造该适配器必须提供 `apiKeyEnv`。延后事项：OS 钥匙串凭据提供方，以及针对两个写方编辑同一引用的逐值修订号检查（后写胜出仍是成文的解决方式）。
diff --git a/apps/cli/README.i18n.yaml b/apps/cli/README.i18n.yaml
index bb5f370009..d6193c6645 100644
--- a/apps/cli/README.i18n.yaml
+++ b/apps/cli/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 apps/cli/README.md
-README.md: 93c36d18abd06bbd7a80c918f520b92489180395
-README.zh.md: 85f4624a592eaf2ae44dc31fb4e18fb5657e62fd
+README.md: 1decf018f53e55e6dde73d8b65963ab96e20122b
+README.zh.md: eecf60ca6a1a543b6c8f71297eab036ca6b42815
diff --git a/apps/cli/README.zh.md b/apps/cli/README.zh.md
index 85f4624a59..eecf60ca6a 100644
--- a/apps/cli/README.zh.md
+++ b/apps/cli/README.zh.md
@@ -12,7 +12,7 @@ TUI 界面：
 - 使用 `dsh --resume <session-id>` 恢复已持久化会话。当 Node 宿主公开 `process.execve` 时，还会提供 TUI 的原地移交宿主：选择器预检并刷新当前会话后，宿主会释放应用，并以规范化的 `dsh --resume <id>` 替换进程；不支持进程替换的运行时保留屏幕上显示的命令回退。该标志通过 `RESUME_SESSION_ID_KEY` 在启动上下文中提供 id（不使用环境变量），已交付的配置通过 `!!js` 读取它；缺失或无法读取的 id 会明确报错，而不会创建新会话；
 - 将 **调用目录** 视为 workspace：会话、相对路径和 workspace 指令都从 cwd 解析；
 - 告知 agent 自身源码所在位置：启动后添加一个命名此 harness checkout 的提示词段。该路径从启动器的真实路径解析，因此在 PATH 符号链接和任意 cwd 下仍然有效，使自指的 `cordis` 工具集可以读取并修改它；
-- 应用 `~/.dsh` 中的个人覆盖（参见 [app-boot 的个人配置](../../packages/ui/app-boot/README.md#personal-config)）：`.env` 填补环境缺口（环境中已有的值 > 项目 `.env` > 个人 `.env`），`config.yaml` 则修补已启动的树。
+- 应用 `~/.dsh` 中的个人覆盖（参见 [app-boot 的个人配置](../../packages/ui/app-boot/README.md#personal-config)）：`config.yaml` 修补已启动的树，而那里的 `.env` 是凭据 provider 自己的存储（绝不会被提升进环境，因此密钥始终可轮换）。环境优先级为环境中已有的值 > 项目 `.env`。
 
 Web 和无头界面启动同一个共享组合（`cordis.yml`）：两者都将调用目录视为默认项目和 Workspace 根目录，除非通过 `--workspace-root <path>` 覆盖，否则会在该根目录下创建具名 Workspace；它们会把适用的 `AGENTS.md`/`CLAUDE.md` 指令加载到每个 agent-loop 请求前缀中，渲染预算为 65,536 字节，并选用首条消息模型标题。无头界面唯一的差异是监听操作系统分配的端口（并行 `dsh -p` 运行绝不冲突；stderr 打印的 URL 会在浏览器中打开实时会话）。两者都需要先构建前端 dist 和客户端 bundle（`pnpm run build && pnpm run build:web`）。
 
diff --git a/docs/config-catalog.md b/docs/config-catalog.md
index 513df9b0d2..4e8f02536b 100644
--- a/docs/config-catalog.md
+++ b/docs/config-catalog.md
@@ -416,7 +416,7 @@ export interface Config {
 }
 ```
 
-Source: [`packages/credentials/credentials-local/src/index.ts:24`](../packages/credentials/credentials-local/src/index.ts)
+Source: [`packages/credentials/credentials-local/src/index.ts:26`](../packages/credentials/credentials-local/src/index.ts)
 
 ## `@deepseek-ai/dsh-fs-local`
 
@@ -656,7 +656,7 @@ export interface DeepSeekCatalogModel {
 
 Depends on: [`RetryPolicyConfig`](../packages/llm/llm/src/index.ts)
 
-Source: [`packages/llm/llm-deepseek/src/index.ts:49`](../packages/llm/llm-deepseek/src/index.ts)
+Source: [`packages/llm/llm-deepseek/src/index.ts:50`](../packages/llm/llm-deepseek/src/index.ts)
 
 ## `@deepseek-ai/dsh-llm-pi-ai`
 
@@ -1027,12 +1027,22 @@ export interface Config {
    * `process.cwd()`). Normal agent calls use their session cwd instead.
    */
   workspaceRoot?: string
+  /**
+   * Absolute paths confined executions must not read, whatever their mode
+   * otherwise permits. Omitted (or empty) denies the harness home's
+   * credential document (`$DSH_HOME/.env`) — exactly that file, so the model
+   * keeps the documented access to its own session log under the same home;
+   * a non-empty list replaces it. Backends that cannot express a read denial
+   * report `partial` enforcement instead of pretending, and
+   * `danger-full-access` confines nothing, so no denial applies there at all.
+   */
+  readDenyPaths?: string[]
 }
 ```
 
 Depends on: [`SandboxMode`](core-data-structures/sandbox.md)
 
-Source: [`packages/sandbox/sandbox-policy/src/index.ts:44`](../packages/sandbox/sandbox-policy/src/index.ts)
+Source: [`packages/sandbox/sandbox-policy/src/index.ts:45`](../packages/sandbox/sandbox-policy/src/index.ts)
 
 ## `@deepseek-ai/dsh-session-persistence-jsonl`
 
diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md
index 36dc85e4ea..f56552afff 100644
--- a/docs/cordis-catalog/events.md
+++ b/docs/cordis-catalog/events.md
@@ -443,13 +443,18 @@ Source: [`packages/ui/commands/src/index.ts:154`](../../packages/ui/commands/src
 
 ### `credentials/updated` — emit
 
-Committed change to a provider-managed credential source: a `set`, an `unset`, or an external edit observed in storage. Ambient process-environment changes are not observable and never emit.
+Committed change to a provider-managed credential source: a `set`, an `unset`, or an external edit observed in storage. Ambient process-environment changes are not observable and never emit. Listener failures are contained and logged — a sync throw and an async rejection alike — without changing the committed operation's outcome, except `INVARIANT`-coded failures, which rethrow after every listener ran; that rethrow reaches the emitter only from synchronous listeners, so invariant checks on this event must not be async functions.
 
 ```ts cordis-catalog
 /**
  * Committed change to a provider-managed credential source: a `set`, an
  * `unset`, or an external edit observed in storage. Ambient
- * process-environment changes are not observable and never emit.
+ * process-environment changes are not observable and never emit. Listener
+ * failures are contained and logged — a sync throw and an async rejection
+ * alike — without changing the committed operation's outcome, except
+ * `INVARIANT`-coded failures, which rethrow after every listener ran;
+ * that rethrow reaches the emitter only from synchronous listeners, so
+ * invariant checks on this event must not be async functions.
  * @param ref - the reference whose stored value changed.
  * @mode emit
  */
@@ -458,7 +463,7 @@ Committed change to a provider-managed credential source: a `set`, an `unset`, o
 
 Types: [CredentialRef](../core-data-structures/credentials.md)
 
-Source: [`packages/credentials/credentials/src/index.ts:62`](../../packages/credentials/credentials/src/index.ts)
+Source: [`packages/credentials/credentials/src/index.ts:67`](../../packages/credentials/credentials/src/index.ts)
 
 ## `domain/*`
 
diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md
index d157fffe31..016dff7b15 100644
--- a/docs/cordis-catalog/services.md
+++ b/docs/cordis-catalog/services.md
@@ -532,7 +532,7 @@ abstract unset(ref: CredentialRef): Promise<void>
 
 Types: [CredentialInfo](../core-data-structures/credentials.md) · [CredentialRef](../core-data-structures/credentials.md) · [ResolvedCredential](../core-data-structures/credentials.md)
 
-Source: [`packages/credentials/credentials/src/index.ts:72`](../../packages/credentials/credentials/src/index.ts)
+Source: [`packages/credentials/credentials/src/index.ts:77`](../../packages/credentials/credentials/src/index.ts)
 
 ## `ctx.directoryPicker` — `DirectoryPicker` (abstract seam)
 
@@ -790,9 +790,9 @@ The abstract `llm` service: an adapter registry plus a streaming model-call surf
  * Disposed with the fiber.
  * @param providers - every provider route this adapter should serve.
  * @param adapter - the adapter that streams calls for those providers.
- * @returns the disposer that unregisters all of them.
+ * @returns the disposer, carrying {@link AdapterRegistrationHandle.replace}.
  */
-registerAdapter(providers: string[], adapter: LlmAdapter): () => void
+registerAdapter(providers: string[], adapter: LlmAdapter): AdapterRegistrationHandle
 
 /**
  * Describe provider routes with a registered adapter.
@@ -864,9 +864,9 @@ async prepareCall(config: LlmCallConfig, signal?: AbortSignal): Promise<Prepared
 stream(options: GenerateOptions): AsyncIterable<StreamChunk>
 ```
 
-Types: [GenerateOptions](../core-data-structures/core.md) · [LlmAdapter](../core-data-structures/llm-streaming.md) · [LlmCallConfig](../core-data-structures/core.md) · [LlmModelInfo](../core-data-structures/core.md) · [LlmProviderInfo](../core-data-structures/core.md) · [LlmResolvedModelInfo](../core-data-structures/core.md) · [PreparedLlmCall](../core-data-structures/llm-streaming.md) · [ResolvedRetryPolicy](../core-data-structures/llm-streaming.md) · [StreamChunk](../core-data-structures/llm-streaming.md)
+Types: [AdapterRegistrationHandle](../core-data-structures/core.md) · [GenerateOptions](../core-data-structures/core.md) · [LlmAdapter](../core-data-structures/llm-streaming.md) · [LlmCallConfig](../core-data-structures/core.md) · [LlmModelInfo](../core-data-structures/core.md) · [LlmProviderInfo](../core-data-structures/core.md) · [LlmResolvedModelInfo](../core-data-structures/core.md) · [PreparedLlmCall](../core-data-structures/llm-streaming.md) · [ResolvedRetryPolicy](../core-data-structures/llm-streaming.md) · [StreamChunk](../core-data-structures/llm-streaming.md)
 
-Source: [`packages/llm/llm/src/index.ts:191`](../../packages/llm/llm/src/index.ts)
+Source: [`packages/llm/llm/src/index.ts:211`](../../packages/llm/llm/src/index.ts)
 
 ## `ctx.permission` — `PermissionService`
 
@@ -1059,7 +1059,7 @@ abstract confine(argv: readonly string[], policy: SandboxPolicy): ConfinedArgv
 
 Types: [ConfinedArgv](../core-data-structures/sandbox.md) · [SandboxPolicy](../core-data-structures/sandbox.md)
 
-Source: [`packages/sandbox/sandbox/src/index.ts:131`](../../packages/sandbox/sandbox/src/index.ts)
+Source: [`packages/sandbox/sandbox/src/index.ts:143`](../../packages/sandbox/sandbox/src/index.ts)
 
 ## `ctx.sandboxPolicy` — `SandboxPolicyService`
 
@@ -1087,7 +1087,7 @@ overrideOf(session: Session): SandboxMode | undefined
 
 Types: [SandboxExecutionPolicy](../core-data-structures/sandbox.md) · [SandboxMode](../core-data-structures/sandbox.md) · [SandboxPolicyRequest](../core-data-structures/sandbox.md) · [Session](../core-data-structures/session.md)
 
-Source: [`packages/sandbox/sandbox-policy/src/index.ts:68`](../../packages/sandbox/sandbox-policy/src/index.ts)
+Source: [`packages/sandbox/sandbox-policy/src/index.ts:79`](../../packages/sandbox/sandbox-policy/src/index.ts)
 
 ## `ctx.sessionPersistence` — `SessionPersistence` (abstract seam)
 
diff --git a/docs/core-data-structures/core.i18n.yaml b/docs/core-data-structures/core.i18n.yaml
index 948002edff..c8cb8302d1 100644
--- a/docs/core-data-structures/core.i18n.yaml
+++ b/docs/core-data-structures/core.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 docs/core-data-structures/core.md
-core.md: 5e1049a131cfdbf2368350dbc199aebceebf71ba
-core.zh.md: fbb95c1dfa40cc05d9e1f3a4c6ef32c11cab0ec7
+core.md: 5c79f454f50a059d72a592df45d504ee78835e0b
+core.zh.md: 258517c625822bdbd64138baf3df186b075bb5c6
diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md
index 5e1049a131..5c79f454f5 100644
--- a/docs/core-data-structures/core.md
+++ b/docs/core-data-structures/core.md
@@ -183,6 +183,30 @@ Source: [`packages/llm/llm/src/types.ts`](../../packages/llm/llm/src/types.ts)
 
 Provider and model discovery uses small provider-neutral descriptors. A model catalog is advisory: routing still keys on a registered provider, and an adapter may accept unlisted model ids.
 
+Registering an adapter returns a handle: the disposer, plus the atomic route replacement a plugin whose route set is user-configurable needs.
+
+```ts type-equiv
+/**
+ * What {@link LlmService.registerAdapter} returns: the disposer, plus an
+ * atomic route replacement for the same adapter instance.
+ */
+interface AdapterRegistrationHandle {
+  /** Release every route this registration currently holds. */
+  (): void
+  /**
+   * Replace this registration's routes with `providers`, keeping the same
+   * adapter instance. The candidate set is validated in full first — a
+   * conflict with another adapter, an invalid name, or bad provider metadata
+   * throws and leaves the current routes untouched — and the swap itself is
+   * one synchronous section, so no request can observe a gap. An empty array
+   * is legal here (a settings section that emptied holds zero routes while
+   * staying registered), unlike an empty initial registration.
+   * @param providers - the complete next route set for this registration.
+   */
+  replace(providers: string[]): void
+}
+```
+
 ```ts type-equiv
 /** Display metadata for one registered provider route. */
 interface LlmProviderInfo {
diff --git a/docs/core-data-structures/core.zh.md b/docs/core-data-structures/core.zh.md
index fbb95c1dfa..258517c625 100644
--- a/docs/core-data-structures/core.zh.md
+++ b/docs/core-data-structures/core.zh.md
@@ -189,6 +189,30 @@ interface MessageSourceMap {
 
 提供方与模型发现使用小型、提供方无关的描述符。模型目录仅供参考：路由仍以已注册提供方为键，适配器也可以接受未列出的模型 id。
 
+注册适配器会返回一个句柄：既是释放器，也带有原子的路由替换——路由集合由用户配置决定的插件正需要它。
+
+```ts type-equiv
+/**
+ * What {@link LlmService.registerAdapter} returns: the disposer, plus an
+ * atomic route replacement for the same adapter instance.
+ */
+interface AdapterRegistrationHandle {
+  /** Release every route this registration currently holds. */
+  (): void
+  /**
+   * Replace this registration's routes with `providers`, keeping the same
+   * adapter instance. The candidate set is validated in full first — a
+   * conflict with another adapter, an invalid name, or bad provider metadata
+   * throws and leaves the current routes untouched — and the swap itself is
+   * one synchronous section, so no request can observe a gap. An empty array
+   * is legal here (a settings section that emptied holds zero routes while
+   * staying registered), unlike an empty initial registration.
+   * @param providers - the complete next route set for this registration.
+   */
+  replace(providers: string[]): void
+}
+```
+
 ```ts type-equiv
 /** Display metadata for one registered provider route. */
 interface LlmProviderInfo {
diff --git a/docs/core-data-structures/sandbox.i18n.yaml b/docs/core-data-structures/sandbox.i18n.yaml
index f8189f4e15..c369d8066f 100644
--- a/docs/core-data-structures/sandbox.i18n.yaml
+++ b/docs/core-data-structures/sandbox.i18n.yaml
@@ -1,6 +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
-sandbox.md: 9bc05fa06f22fdc9ac9e8aacd482c1e7c2f2edec
-sandbox.zh.md: 9a52f126758fe0e7988715c7824e963bd6e6ea84
+#   pnpm run verify-translation-pairing --write docs/core-data-structures/sandbox.md
+sandbox.md: 566ac0edc0ba0600e2a1b5ecf18cc34e05e910ec
+sandbox.zh.md: 24d8fbfc6c952246278192b5bed7cdc09223e7db
diff --git a/docs/core-data-structures/sandbox.md b/docs/core-data-structures/sandbox.md
index 9bc05fa06f..566ac0edc0 100644
--- a/docs/core-data-structures/sandbox.md
+++ b/docs/core-data-structures/sandbox.md
@@ -40,7 +40,7 @@ type SandboxEnforcement = 'full' | 'partial'
 
 ## Per-call policy
 
-The complete execution policy is resolved and carried per capability call. It includes `danger-full-access` so a consumer can resolve policy once before deciding whether to bypass confinement. Normal tool calls derive `workspaceRoot` from the calling session's immutable cwd; deployment configuration is the agentless fallback. The root is canonicalized with filesystem semantics before lexical normalization, so a cwd containing `symlink/..` identifies the directory where a spawned process actually runs.
+The complete execution policy is resolved and carried per capability call. It includes `danger-full-access` so a consumer can resolve policy once before deciding whether to bypass confinement. Normal tool calls derive `workspaceRoot` from the calling session's immutable cwd; deployment configuration is the agentless fallback. The root is canonicalized with filesystem semantics before lexical normalization, so a cwd containing `symlink/..` identifies the directory where a spawned process actually runs. `readDenyPaths` names paths a confined execution must not read whatever its mode permits — the harness credential document by default — and backends that cannot express such a denial report `partial` enforcement rather than claiming a boundary the process lacks.
 
 ```ts type-equiv
 /**
@@ -53,6 +53,18 @@ interface SandboxExecutionPolicy {
   mode: SandboxMode
   /** Absolute root directory `workspace-write` may write under. */
   workspaceRoot: string
+  /**
+   * Absolute paths a confined execution must not READ, whatever the mode
+   * otherwise permits — the harness's own credential document is the
+   * motivating case, which is why these are exact paths rather than roots:
+   * denying the whole harness home would also take away the model's
+   * documented access to its own session log. Not every backend can express
+   * a read denial (a Landlock allow-list granting `/` cannot subtract from
+   * itself), so {@link ConfinedArgv.enforcement} drops to `partial` when a
+   * denial is requested and the selected backend cannot apply it. Never a
+   * boundary under `danger-full-access`, which confines nothing at all.
+   */
+  readDenyPaths?: readonly string[]
 }
 ```
 
diff --git a/docs/core-data-structures/sandbox.zh.md b/docs/core-data-structures/sandbox.zh.md
index 9a52f12675..24d8fbfc6c 100644
--- a/docs/core-data-structures/sandbox.zh.md
+++ b/docs/core-data-structures/sandbox.zh.md
@@ -40,7 +40,7 @@ type SandboxEnforcement = 'full' | 'partial'
 
 ## 逐调用策略
 
-完整执行策略会按每次能力调用解析并携带。它包括 `danger-full-access`，因此消费方可以只解析一次策略，再决定是否绕过约束。普通工具调用从调用会话的不可变 cwd 派生 `workspaceRoot`；部署配置是没有 agent（智能体）时的回退值。root 会先按文件系统语义规范化，再做词法规范化，因此包含 `symlink/..` 的 cwd 会标识所生成进程实际运行的目录。
+完整执行策略会按每次能力调用解析并携带。它包括 `danger-full-access`，因此消费方可以只解析一次策略，再决定是否绕过约束。普通工具调用从调用会话的不可变 cwd 派生 `workspaceRoot`；部署配置是没有 agent（智能体）时的回退值。root 会先按文件系统语义规范化，再做词法规范化，因此包含 `symlink/..` 的 cwd 会标识所生成进程实际运行的目录。`readDenyPaths` 点名受限执行无论其模式允许什么都不得读取的路径——默认是 harness 凭据文档——无法表达此类拒绝的后端会把强制执行报为 `partial`，而不是声称一条该进程其实并不具备的边界。
 
 ```ts type-equiv
 /**
@@ -53,6 +53,18 @@ interface SandboxExecutionPolicy {
   mode: SandboxMode
   /** Absolute root directory `workspace-write` may write under. */
   workspaceRoot: string
+  /**
+   * Absolute paths a confined execution must not READ, whatever the mode
+   * otherwise permits — the harness's own credential document is the
+   * motivating case, which is why these are exact paths rather than roots:
+   * denying the whole harness home would also take away the model's
+   * documented access to its own session log. Not every backend can express
+   * a read denial (a Landlock allow-list granting `/` cannot subtract from
+   * itself), so {@link ConfinedArgv.enforcement} drops to `partial` when a
+   * denial is requested and the selected backend cannot apply it. Never a
+   * boundary under `danger-full-access`, which confines nothing at all.
+   */
+  readDenyPaths?: readonly string[]
 }
 ```
 
diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md
index 14e8a00960..a481e67e54 100644
--- a/docs/event-producer-consumer.md
+++ b/docs/event-producer-consumer.md
@@ -26,7 +26,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac
 | `agent/turn-stopping` | `serial` | [`packages/core/agent/src/types.ts:406`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) |
 | `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:30`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/acp/acp), `apiproxy` |
 | `commands/change` | `emit` | [`packages/ui/commands/src/index.ts:154`](../packages/ui/commands/src/index.ts) | [`commands`](../packages/ui/commands) (`events.dispatch`) | `apiproxy`, [`tui`](../packages/ui/tui) |
-| `credentials/updated` | `emit` | [`packages/credentials/credentials/src/index.ts:62`](../packages/credentials/credentials/src/index.ts) | [`credentials-local`](../packages/credentials/credentials-local) (`emit`) | [`credentials`](../packages/credentials/credentials) |
+| `credentials/updated` | `emit` | [`packages/credentials/credentials/src/index.ts:67`](../packages/credentials/credentials/src/index.ts) | [`credentials`](../packages/credentials/credentials) (`events.dispatch`) | [`credentials`](../packages/credentials/credentials) |
 | `domain/changed` | `emit` | [`packages/storage/storage-domain/src/events.ts:46`](../packages/storage/storage-domain/src/events.ts) | [`storage-domain`](../packages/storage/storage-domain) (`emit`) | `apiproxy`, [`storage-domain`](../packages/storage/storage-domain), [`workspace`](../packages/workspace/workspace) |
 | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:62`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) |
 | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:71`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy), [`skill-local`](../packages/skill/skill-local) |
diff --git a/docs/module-graph.md b/docs/module-graph.md
index 81dd199dbb..25d5ee1399 100644
--- a/docs/module-graph.md
+++ b/docs/module-graph.md
@@ -481,6 +481,7 @@ flowchart TD
   pkg_sandbox_local --> pkg_llm
   pkg_sandbox_local --> pkg_sandbox
   pkg_sandbox_policy --> pkg_invariants
+  pkg_sandbox_policy --> pkg_paths
   pkg_sandbox_policy --> pkg_sandbox
   pkg_sandbox_policy --> pkg_session
   pkg_session_projection --> pkg_invariants
@@ -1098,7 +1099,7 @@ flowchart TD
 | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | `code-runtime` | [`code-runtime`](../packages/code-runtime/code-runtime), [`invariants`](../packages/support/invariants), [`session`](../packages/core/session), [`timeout`](../packages/util/timeout) |
 | [`lsp-local`](../packages/lsp/lsp-local) | `lsp` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`lsp`](../packages/lsp/lsp), [`subprocess`](../packages/subprocess/subprocess), [`timeout`](../packages/util/timeout) |
 | [`sandbox-local`](../packages/sandbox/sandbox-local) | `sandbox` | [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox) |
-| [`sandbox-policy`](../packages/sandbox/sandbox-policy) | `sandbox` | [`invariants`](../packages/support/invariants), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session) |
+| [`sandbox-policy`](../packages/sandbox/sandbox-policy) | `sandbox` | [`invariants`](../packages/support/invariants), [`paths`](../packages/util/paths), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session) |
 | [`session-projection`](../packages/session-projection/session-projection) | `session-projection` | [`invariants`](../packages/support/invariants), [`session`](../packages/core/session) |
 | [`llm-retry`](../packages/llm/llm-retry) | `llm` | [`agent`](../packages/core/agent), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`timeout`](../packages/util/timeout) |
 | [`goal`](../packages/goal/goal) | `goal` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`session-projection`](../packages/session-projection/session-projection) |
diff --git a/examples/headless-agent/tests/headless.snapshot.ts b/examples/headless-agent/tests/headless.snapshot.ts
index fba7bf7338..a09e0281cc 100644
--- a/examples/headless-agent/tests/headless.snapshot.ts
+++ b/examples/headless-agent/tests/headless.snapshot.ts
@@ -191,10 +191,13 @@ describe('headless stream-json snapshots', () => {
       prepare: (cwd) => { runCwd = cwd },
     })
 
+    // The guidance leads with the credential store — the path that keeps the
+    // secret out of configuration files — and offers a literal key last.
     expect(result.stderr).toBe(
       'dsh-cli-demo: turn 1 failed at step 1: llm-deepseek: no API key for provider route "deepseek";'
-      + ' set the llm-deepseek "apiKey" setting, store DEEPSEEK_API_KEY with the credentials service,'
-      + ' or export DEEPSEEK_API_KEY\n',
+      + ' store DEEPSEEK_API_KEY through the credentials service (the web Models page writes it),'
+      + ' export DEEPSEEK_API_KEY in the launching environment, or — as a last resort — set a literal'
+      + ' "apiKey" in the llm-deepseek settings section\n',
     )
     const normalized = normalizeHeadlessStream(result.stdout, runCwd)
     if (refreshing) await writeFile(streamExpected, normalized)
diff --git a/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl b/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl
index d7d72f6a86..c48a42f62e 100644
--- a/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl
+++ b/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl
@@ -4,5 +4,5 @@
 {"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"step/start","seq":3,"time":0,"data":{"turn":1,"step":1}}}
 {"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"request/header","seq":4,"time":0,"data":{"header":{"config":{"provider":"deepseek","model":"deepseek-v4-flash","reasoningEffort":"high"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}}
 {"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"step/end","seq":5,"time":0,"data":{"turn":1,"step":1}}}
-{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"turn/end","seq":6,"time":0,"data":{"turn":1,"reason":{"kind":"error","step":1,"failure":{"message":"llm-deepseek: no API key for provider route \"deepseek\"; set the llm-deepseek \"apiKey\" setting, store DEEPSEEK_API_KEY with the credentials service, or export DEEPSEEK_API_KEY","code":"MISSING_CREDENTIAL"}}}}}
-{"type":"result","success":false,"sessionId":"{{sessionId}}","turn":1,"result":"","reason":{"kind":"error","step":1,"failure":{"message":"llm-deepseek: no API key for provider route \"deepseek\"; set the llm-deepseek \"apiKey\" setting, store DEEPSEEK_API_KEY with the credentials service, or export DEEPSEEK_API_KEY","code":"MISSING_CREDENTIAL"}}}
+{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"turn/end","seq":6,"time":0,"data":{"turn":1,"reason":{"kind":"error","step":1,"failure":{"message":"llm-deepseek: no API key for provider route \"deepseek\"; store DEEPSEEK_API_KEY through the credentials service (the web Models page writes it), export DEEPSEEK_API_KEY in the launching environment, or — as a last resort — set a literal \"apiKey\" in the llm-deepseek settings section","code":"MISSING_CREDENTIAL"}}}}}
+{"type":"result","success":false,"sessionId":"{{sessionId}}","turn":1,"result":"","reason":{"kind":"error","step":1,"failure":{"message":"llm-deepseek: no API key for provider route \"deepseek\"; store DEEPSEEK_API_KEY through the credentials service (the web Models page writes it), export DEEPSEEK_API_KEY in the launching environment, or — as a last resort — set a literal \"apiKey\" in the llm-deepseek settings section","code":"MISSING_CREDENTIAL"}}}
diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts
index 9f3d78c9bf..553e321d7a 100644
--- a/packages/cordis/tool-cordis/src/api-catalog.ts
+++ b/packages/cordis/tool-cordis/src/api-catalog.ts
@@ -405,8 +405,8 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [
     summary: 'The abstract `llm` service: an adapter registry plus a streaming model-call surface, interceptable via the `llm/stream` waterfall.',
     methods: [
       {
-        signature: 'registerAdapter(providers: string[], adapter: LlmAdapter): () => void',
-        jsDoc: '/**\n * Register an adapter for the given provider routes. Throws `LlmError` with code\n * `DUPLICATE_ADAPTER` if any provider already has an adapter (all-or-nothing).\n * Disposed with the fiber.\n * @param providers - every provider route this adapter should serve.\n * @param adapter - the adapter that streams calls for those providers.\n * @returns the disposer that unregisters all of them.\n */',
+        signature: 'registerAdapter(providers: string[], adapter: LlmAdapter): AdapterRegistrationHandle',
+        jsDoc: '/**\n * Register an adapter for the given provider routes. Throws `LlmError` with code\n * `DUPLICATE_ADAPTER` if any provider already has an adapter (all-or-nothing).\n * Disposed with the fiber.\n * @param providers - every provider route this adapter should serve.\n * @param adapter - the adapter that streams calls for those providers.\n * @returns the disposer, carrying {@link AdapterRegistrationHandle.replace}.\n */',
       },
       {
         signature: 'listProviders(): LlmProviderInfo[]',
@@ -1297,7 +1297,7 @@ export const EVENT_API: readonly EventApiEntry[] = [
     name: 'credentials/updated',
     mode: 'emit',
     signature: '\'credentials/updated\'(ref: CredentialRef): void',
-    jsDoc: '/**\n * Committed change to a provider-managed credential source: a `set`, an\n * `unset`, or an external edit observed in storage. Ambient\n * process-environment changes are not observable and never emit.\n * @param ref - the reference whose stored value changed.\n * @mode emit\n */',
+    jsDoc: '/**\n * Committed change to a provider-managed credential source: a `set`, an\n * `unset`, or an external edit observed in storage. Ambient\n * process-environment changes are not observable and never emit. Listener\n * failures are contained and logged — a sync throw and an async rejection\n * alike — without changing the committed operation\'s outcome, except\n * `INVARIANT`-coded failures, which rethrow after every listener ran;\n * that rethrow reaches the emitter only from synchronous listeners, so\n * invariant checks on this event must not be async functions.\n * @param ref - the reference whose stored value changed.\n * @mode emit\n */',
     summary: 'Committed change to a provider-managed credential source: a `set`, an `unset`, or an external edit observed in storage.',
   },
   {
@@ -1521,6 +1521,10 @@ export const EVENT_API: readonly EventApiEntry[] = [
 
 /** Shapes of every exported type the SERVICE_API signatures reference (transitively), sorted by name. */
 export const TYPE_API: readonly TypeApiEntry[] = [
+  {
+    name: 'AdapterRegistrationHandle',
+    declaration: 'export interface AdapterRegistrationHandle {\n    (): void;\n    replace(providers: string[]): void;\n}',
+  },
   {
     name: 'Agent',
     declaration: 'export interface Agent {\n    readonly id: SessionId;\n    readonly options: AgentOptions;\n    readonly session: Session;\n    readonly status: AgentStatus;\n    readonly acceptsNextStep: boolean;\n    readonly ctx: Context;\n    send(message: UserMessage, options: SendOptions): void;\n    updateInbox(id: InboxItemId, action: InboxAction): InboxActionResult;\n    cancel(cause: AgentCancelCause, options?: CancelOptions): void;\n    whenIdle(): Promise<void>;\n    followup(message: UserMessage): void;\n    steer(message: UserMessage): void;\n    inject(message: UserMessage): void;\n}',
@@ -2207,7 +2211,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [
   },
   {
     name: 'SandboxExecutionPolicy',
-    declaration: 'export interface SandboxExecutionPolicy {\n    mode: SandboxMode;\n    workspaceRoot: string;\n}',
+    declaration: 'export interface SandboxExecutionPolicy {\n    mode: SandboxMode;\n    workspaceRoot: string;\n    readDenyPaths?: readonly string[];\n}',
   },
   {
     name: 'SandboxMode',
diff --git a/packages/credentials/credentials-local/README.i18n.yaml b/packages/credentials/credentials-local/README.i18n.yaml
index 23cf5bb09b..55d8f24b34 100644
--- a/packages/credentials/credentials-local/README.i18n.yaml
+++ b/packages/credentials/credentials-local/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/credentials/credentials-local/README.md
-README.md: 277c7db02836819e34a5c2db8aaf542c8eeec162
-README.zh.md: af1b840142d214b8cd8cf59690cb5773fae2e867
+README.md: 2288d6d7133a7f356823e3e4f28746cfd28b2597
+README.zh.md: 959322c9ec670ed76b89f1f3a19246191b3ec02c
diff --git a/packages/credentials/credentials-local/README.zh.md b/packages/credentials/credentials-local/README.zh.md
index 1b2b002e60..959322c9ec 100644
--- a/packages/credentials/credentials-local/README.zh.md
+++ b/packages/credentials/credentials-local/README.zh.md
@@ -32,12 +32,12 @@ dotenv 格式，用 `dotenv` 解析；写回用物理行级编辑器，保留一
 
 ## 安全边界
 
-文档位于 `0700` 目录下、权限 `0600`，这挡得住其他 OS 用户，**挡不住**模型。工具进程（bash、文件系统工具）以同一用户身份运行，因此在出厂默认的 `danger-full-access` 下，它们读这个文件与读该用户拥有的任何其他文件毫无二致。有两件事收窄了这一点：
+文档在 `0700` 目录下以 `0600` 权限存放，这挡得住其他 OS 用户，**挡不住**模型。工具进程（bash、文件系统工具）以同一用户身份运行，因此在出厂默认的 `danger-full-access` 下，它们读这个文件与读该用户拥有的任何其他文件毫无二致。有两件事收窄了这一点：
 
-- **约束型沙箱模式**会专门拒绝凭据文档：[`dsh-sandbox-policy`](../../sandbox/sandbox-policy/README.md) 把 `readDenyPaths` 默认为 `$DSH_HOME/.env`，Seatbelt 与 bwrap 后端会执行它（Landlock 无法从自己的 `/` 读授权中扣除，只能报 `partial`）。这条拒绝点名的是该文件而非整个 home，因此模型对自己会话日志的既定访问不受影响。
+- **受限沙箱模式**会专门拒绝凭据文档：[`dsh-sandbox-policy`](../../sandbox/sandbox-policy/README.md) 把 `readDenyPaths` 默认为 `$DSH_HOME/.env`，Seatbelt 与 bwrap 后端会执行它（Landlock 无法从自己的 `/` 读授权中扣除，只能报 `partial`）。这条拒绝点名的是该文件而非整个 home，因此模型对自己会话日志的既定访问不受影响。
 - harness 绝不把该文档的解析后路径交给模型，也绝不把它载入进程环境（见 [app-boot 的个人配置](../../ui/app-boot/README.md#personal-config)）。
 
-这两者都不能让未受约束的 agent 变得安全。必须让提供方密钥远离自身 agent 的部署应当运行约束型模式；OS 钥匙串 provider——一个模型的进程根本读不到的存储——才是延后的答案，它应当作为平级包与本 provider 并列。
+这两者都不能让未受限的 agent 变得安全。必须让提供方密钥远离自身 agent 的部署应当运行受限模式；OS 钥匙串 provider——一个模型的进程根本读不到的存储——才是延后的答案，它应当作为平级包与本 provider 并列。
 
 ## Model Experience
 
@@ -51,7 +51,7 @@ dotenv 格式，用 `dotenv` 解析；写回用物理行级编辑器，保留一
 
 - **多行条目拒绝 `set`/`unset`**——行编辑器不改写会被它破坏的条目；`describe` 把它们报为 `writable: false`，编辑必须直接落到文件上。
 - **同一引用的并发写入是后写胜出**——写锁加读-改-写让并发写入者不会丢掉彼此的条目，但两个写入者编辑同一个引用时仍以较后的写入为准；没有修订检查。
-- **同 UID 进程可以读取该文档**——见[安全边界](#security-boundary)：只有约束型沙箱模式会拒绝它，OS 钥匙串 provider 仍是延后项。
+- **同 UID 进程可以读取该文档**——见[安全边界](#security-boundary)：只有受限沙箱模式会拒绝它，OS 钥匙串 provider 仍是延后项。
 - **无法表示的值响亮失败**——控制字符，或同时混用两种引号又含反斜杠的值，无法在 dotenv 行格式中往返。
 - **环境变化不可见**——每次解析实时读取 `process.env`，但那里的变化不可能发出事件。
 - **原子但不保证崩溃持久**——继承自 `dsh-atomic-write`；存储在启动时重新读取。
diff --git a/packages/credentials/credentials-local/src/index.ts b/packages/credentials/credentials-local/src/index.ts
index 44678b5837..c62d4411fa 100644
--- a/packages/credentials/credentials-local/src/index.ts
+++ b/packages/credentials/credentials-local/src/index.ts
@@ -302,6 +302,11 @@ export class CredentialsLocal extends Credentials {
     await this.write(ref, undefined)
   }
 
+  /* jscpd:ignore-start -- the operation-chain and reload lifecycle is the same
+     reviewed contract as settings-local, deliberately mirrored (prefer symmetry
+     for parallel values); the two providers own different documents and
+     failure policies, so extracting the shape would couple their teardown
+     semantics across packages for a handful of lines. */
   /** Queue one exclusive document operation behind every earlier one. */
   private enqueue<T>(operation: () => Promise<T>): Promise<T> {
     const task = this.operations.then(operation)
@@ -319,6 +324,7 @@ export class CredentialsLocal extends Credentials {
       this.ctx.logger.error(error)
     })
   }
+  /* jscpd:ignore-end */
 
   /** Queue one line edit; entry checks reject early, the queue re-judges them at run time. */
   private async write(ref: CredentialRef, value: string | undefined): Promise<void> {
@@ -390,6 +396,9 @@ export class CredentialsLocal extends Credentials {
     this.values = new Map(Object.entries(parse(text)))
   }
 
+  /* jscpd:ignore-start -- same deliberate mirror of settings-local's reload and
+     reconcile policy: warn-and-keep on a reload, throw on a write, invariant
+     failures propagate. */
   /**
    * Re-read the document after a watcher event. Unchanged content (including
    * this provider's own writes) is a no-op; an unreadable document keeps the
@@ -430,6 +439,7 @@ export class CredentialsLocal extends Credentials {
     this.values = next
     for (const ref of changed) this.notifyUpdated(ref)
   }
+  /* jscpd:ignore-end */
 
   /** Seam-addressable entries whose effective (non-empty) value changed. */
   private changedRefs(prev: Map<string, string>, next: Map<string, string>): CredentialRef[] {
diff --git a/packages/llm/llm-deepseek/README.i18n.yaml b/packages/llm/llm-deepseek/README.i18n.yaml
index 41ecd175d9..e02f994fef 100644
--- a/packages/llm/llm-deepseek/README.i18n.yaml
+++ b/packages/llm/llm-deepseek/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/llm/llm-deepseek/README.md
-README.md: 88f4fd7c017a5dbb070bdaf8ee47bb5610b23303
-README.zh.md: 386c695766a68c9054472bd5c9b9deb6746c52e6
+README.md: ab44b61e300ca65cc4dd3507ad7262cd08edcfce
+README.zh.md: 4ecaf361fdb396f9f8079476240b5e9353a73f5e
diff --git a/packages/llm/llm-pi-ai/README.i18n.yaml b/packages/llm/llm-pi-ai/README.i18n.yaml
index 6584157850..25e825eead 100644
--- a/packages/llm/llm-pi-ai/README.i18n.yaml
+++ b/packages/llm/llm-pi-ai/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/llm/llm-pi-ai/README.md
-README.md: fb8145d58a7c74c70498468044282c740460a947
-README.zh.md: 0d0e2152d27447705cdf19f5b36069314ff05b4d
+README.md: 0099c9acd39cd2d471936505726d68423f351c76
+README.zh.md: 7cb4f5fcbc1c7a67b77d690031cc7d553569433f
diff --git a/packages/llm/llm/README.i18n.yaml b/packages/llm/llm/README.i18n.yaml
index 49ff6d7c48..d7740dcebf 100644
--- a/packages/llm/llm/README.i18n.yaml
+++ b/packages/llm/llm/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/llm/llm/README.md
-README.md: d343449d1530bf70a3a8c57f883894e29c42d18f
-README.zh.md: 4dc4a0ca06378116d05fdb4b9b048738930511fd
+README.md: 5b0c1b2dcafeefaad25f1714e4a1783430370118
+README.zh.md: 5f5c8142ec829e8ca8cfd40e6caa341ae0a33c7d
diff --git a/packages/sandbox/sandbox-policy/README.i18n.yaml b/packages/sandbox/sandbox-policy/README.i18n.yaml
index b21c8d885a..78ec04a6a0 100644
--- a/packages/sandbox/sandbox-policy/README.i18n.yaml
+++ b/packages/sandbox/sandbox-policy/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/sandbox/sandbox-policy/README.md
-README.md: dca54330bc888af9ecac21aa92019d8a2b0140bd
-README.zh.md: a201d48c81f563fc3d85495e964bb67432517a3c
+README.md: 297dd7d5210bb30963a162c6a55a598c6d522aaf
+README.zh.md: 1de92eb81409a7fabb25de94eb5372f0f16afb6f
diff --git a/packages/ui/app-boot/README.i18n.yaml b/packages/ui/app-boot/README.i18n.yaml
index 08a274fd25..17ce617b70 100644
--- a/packages/ui/app-boot/README.i18n.yaml
+++ b/packages/ui/app-boot/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/ui/app-boot/README.md
-README.md: 0282d3e9559d55c3fe5b07df133747750c06ebad
-README.zh.md: b7121bbd288cd6e3f9ef2301de6018ceb380eb06
+README.md: 47c5de35e6151b82f8d99c06618c42dfabe59f5e
+README.zh.md: 9878567464b46865f9320582359f7baa0c97f30c
diff --git a/packages/ui/app-boot/README.zh.md b/packages/ui/app-boot/README.zh.md
index b7121bbd28..9878567464 100644
--- a/packages/ui/app-boot/README.zh.md
+++ b/packages/ui/app-boot/README.zh.md
@@ -26,8 +26,8 @@
 
 开发者的机器本地偏好位于所有仓库之外的 Harness home 中（默认 `~/.dsh`，可由 `$DSH_HOME` 覆盖；统一由根级 [`resolveDshHome`](../../util/paths/README.md) 解析），并由 `dsh` CLI（命令行界面）的 TUI 界面（[`apps/cli`](../../../apps/cli/README.md)）使用；demo bin 会原样启动仓库中提交的树。这里有两个可选文件：
 
-- **`.env`**：在调用目录的 `.env` 之后加载；`process.loadEnvFile` 从不覆盖已有值，因此优先级为环境中的值 > 项目 `.env` > 个人 `.env`。
-- **`config.yaml`**：在发布的默认配置上应用 Loader overlay patch，语义与 include 条目的 `patches` 相同（以仓库提交的 Code Mode overlay 为模板）：按 id 定位的 patch 会替换对应条目的整个 `config`（未改字段也要重述），`insert` 会添加条目，`!!js` 表达式则在挂载时插值，因此个人 `apiKey` 可以引用个人 `.env`。如果 patch 指定的条目 id 不在已启动树中，Loader 会发出警告并跳过。空文件或仅含注释的文件会抛出异常（其解析结果为空，而不是列表）；如需禁用 overlay，请使用 `[]` 或删除该文件。
+- **`.env`**：[`dsh-credentials-local`](../../credentials/credentials-local/README.md) 的凭据存储，只由该 provider 读取。没有任何表层会把它提升进 `process.env`：那样做会让每个已存密钥在下次运行时看起来都像只读的启动时覆盖，从而阻断从 TUI 与 Web 页面轮换密钥。环境层次由环境中的值与调用目录的 `.env` 构成（由 bin 加载；`process.loadEnvFile` 从不覆盖已有值），没有凭据 provider 的组合仍然只从这两者解析密钥。
+- **`config.yaml`**：在发布的默认配置上应用 Loader overlay patch，语义与 include 条目的 `patches` 相同（以仓库提交的 Code Mode overlay 为模板）：按 id 定位的 patch 会替换对应条目的整个 `config`（未改字段也要重述），`insert` 会添加条目，`!!js` 表达式则在挂载时插值。如果 patch 指定的条目 id 不在已启动树中，Loader 会发出警告并跳过。空文件或仅含注释的文件会抛出异常（其解析结果为空，而不是列表）；如需禁用 overlay，请使用 `[]` 或删除该文件。
 
 子进程测试 launcher 会把 `DSH_HOME` 指向逐测试隔离的目录，确保开发者的个人 overlay 不会泄漏到 fixture（测试前置数据）中。
 
diff --git a/scripts/gen-cordis-catalog.ts b/scripts/gen-cordis-catalog.ts
index e2fed96e45..b9dbb501ec 100644
--- a/scripts/gen-cordis-catalog.ts
+++ b/scripts/gen-cordis-catalog.ts
@@ -33,6 +33,7 @@ export const LINK_MAP: Readonly<Record<string, string>> = {
   MessageId: 'core.md',
   HookContext: 'core.md',
   SettleReason: 'core.md',
+  AdapterRegistrationHandle: 'core.md',
   LlmCallConfig: 'core.md',
   LlmModelContext: 'core.md',
   LlmModelReasoningInfo: 'core.md',
diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json
index 6687d4127d..8e6f4c62ce 100644
--- a/scripts/type-equiv.manifest.json
+++ b/scripts/type-equiv.manifest.json
@@ -31,6 +31,11 @@
       "symbol": "FinishReasonMap",
       "source": "packages/llm/llm/src/types.ts"
     },
+    {
+      "doc": "docs/core-data-structures/core.md",
+      "symbol": "AdapterRegistrationHandle",
+      "source": "packages/llm/llm/src/index.ts"
+    },
     {
       "doc": "docs/core-data-structures/core.md",
       "symbol": "LlmProviderInfo",