Merge latest master into subagent policy inheritance

This commit is contained in:
Tianyi Cui
2026-07-29 00:40:25 +08:00
167 changed files with 6507 additions and 953 deletions

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# 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
2026-06-14-session-persistence.md: 75e13b860f621ed407849b3b4c62ff7287ab4812
2026-06-14-session-persistence.zh.md: a6bd400a053779c742940236737447d1687622de
# pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-06-14-session-persistence.md
2026-06-14-session-persistence.md: 137b2b01126214629952812f3dd3b71985a3acda
2026-06-14-session-persistence.zh.md: 2846ee92349c297fb3a173ba9dd3e2ff3cd9ee1a

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Each key choice above records its rejected alternative where the choice is stated: a **chunk-filtered canonical log** (Codex's `policy.rs` shape) — breaks the contiguous-seq contract; **truncating a crashed turn** — silently destroys a long autonomous run's real work; an **in-log `session/meta` event as line 0** — metadata is not replayable state; **finite fractional `createdAt` values** — have no producer and diverge from integer Unix-millisecond storage and query columns; **adopting a non-pristine unversioned SQLite file** — can overwrite unrelated objects or identity; **hard-injecting `sessionPersistence` into the loop** — would pend non-persistent demos forever.
Format versioning: the header carries a `version`; `load` rejects any non-current version (no migration — the pre-release session format is pinned at `SESSION_FORMAT_VERSION = 0` and absorbs shape churn, per the AGENTS.md pre-release stance). Stated honestly: append-only + flush is robust to partial trailing writes (tolerated on load) but not to fsync-less power loss mid-line; a DB/WAL backend is the stronger option later.
Format versioning: the header carries a `version`; `load` rejects any non-current version. The pre-release session format stays pinned at `SESSION_FORMAT_VERSION = 0` and carries no broad compatibility promise, while the coordinator may own an explicit narrow import upgrade when persisted user data requires it ([pre-identity message recovery](../bug-fix/2026-07-28-load-pre-identity-session-messages.md)). Stated honestly: append-only + flush is robust to partial trailing writes (tolerated on load) but not to fsync-less power loss mid-line; a DB/WAL backend is the stronger option later.
## Consequences

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上述每个关键选择都在陈述处记录了被否决的替代方案:**过滤分片的规范日志**Codex 的 `policy.rs` 形式)破坏连续 seq 契约;**截断崩溃的轮次**会静默销毁长时间自主运行中的真实工作;**日志内 `session/meta` 事件作为第 0 行**——元数据不是可回放状态;**有限的非整数 `createdAt` 值**没有生产方,且与整数 Unix 毫秒存储及查询列不一致;**接受非全新的未版本化 SQLite 文件**可能覆盖无关对象或应用标识;**将 `sessionPersistence` 硬注入循环**会让非持久化的演示永远挂起。
格式版本控制header 携带一个 `version``load` 拒绝任何非当前版本(不做迁移——预发布阶段的会话格式固定为 `SESSION_FORMAT_VERSION = 0` 并吸收形状变动,遵循 AGENTS.md 的预发布立场)。坦率地说:仅追加 + 刷写对部分尾部写入是健壮的(加载时容忍),但对行写入中途的无 fsync 断电不健壮;数据库/WAL 后端是后续更强的选项。
格式版本控制header 携带一个 `version``load` 拒绝任何非当前版本预发布阶段的会话格式固定为 `SESSION_FORMAT_VERSION = 0`,不承诺广泛兼容;当持久化用户数据确有需要时,协调器可以负责显式且范围受限的导入升级([消息标识机制引入前的消息恢复](../bug-fix/2026-07-28-load-pre-identity-session-messages.md))。坦率地说:仅追加 + 刷写对部分尾部写入是健壮的(加载时容忍),但对行写入中途的无 fsync 断电不健壮;数据库/WAL 后端是后续更强的选项。
## 后果

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# 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/2026-07-28-dsh-native-typescript-source-launch.md
2026-07-28-dsh-native-typescript-source-launch.md: 019389f3e5e9229f4359bbd58c95dbb2f14eb24b
2026-07-28-dsh-native-typescript-source-launch.zh.md: 2cfff25d228e67ac85a9bc9087fa09ddb64213a0

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# Agent Note: Native TypeScript source launch for dsh
Status: implemented
English | [中文](2026-07-28-dsh-native-typescript-source-launch.zh.md)
## Problem
The `dsh` source entry point originally used `tsx` to run `apps/cli/src/bin.ts`, with the same third-party loader implicitly handling both TypeScript transformation and the root tsconfig's `paths` resolution. With Node handling TypeScript natively, it does not apply tsconfig path mappings; resolving through package exports would instead mix potentially stale or nonexistent `lib/` artifacts into the source launch.
Node's transform also does not perform type analysis. A type imported through an ordinary value import remains a runtime ESM request, and TypeScript's `export =` becomes a CommonJS assignment rather than an ESM default export. The source graph therefore has to use explicit type-only imports and native ESM exports; a resolve hook cannot repair incompatible source syntax.
Cordis configuration introduces a separate resolution boundary. Bare plugins in `cordis.yml` do not pass through TypeScript import analysis, so their resolver manifest may omit the required dependencies. The Cordis Loader logs plugin import errors and leaves an entry without a fiber, but does not fail startup itself; a typo in the configuration can therefore produce an incomplete application with exit code 0.
## Decision
The `dsh` TUI, Web, and headless source launches use `node --experimental-transform-types`; Node performs TypeScript transformation without loading `tsx` or esbuild. `bin/dsh`, the root-level `dsh`/TUI/Web demos, and Code Mode TUI enter the same `apps/cli/src/bin.ts` launch chain. Test and E2E launchers retain their existing strategies, and the built `lib/bin.js` continues to run under ordinary Node.
`scripts/tspath-loader.ts` registers only a module resolve hook. It uses `TSX_TSCONFIG_PATH` when set (resolving relative values from the invoking cwd) and otherwise reads the root `tsconfig.json`; `TsconfigPathsResolver` follows that config's `extends` chain through the repository's existing TypeScript development tool, selects exact or wildcard `paths` entries according to tsconfig rules, and maps matching workspace bare specifiers to `.ts`/`.mts`/`.cts` source files or directory index files. Node remains solely responsible for code transformation. The source-only loader is not part of the built CLI and `apps/cli` does not declare `typescript` as a runtime dependency.
Source imports are redirected only when the target package is either the nearest package manifest's own name or one of that manifest's declared runtime dependencies. The Cordis Loader uses the configuration directory URL as the import parent; the resolver then searches upward for the workspace manifest that declares the plugin, so dependency ownership for `examples/tui-agent/cordis.yml` lies with `examples/package.json`, and dependency ownership for `apps/cli/cordis.yml` lies with `apps/cli/package.json`. Specifiers that do not match tsconfig paths, refer to undeclared dependencies, or are not bare all fall back to Node's default resolution.
`verify-cordis-config` performs a one-way completeness check on both resolver manifests: every bare plugin package in a configuration must appear in the corresponding manifest's `dependencies`, while the manifest may contain extra dependencies not referenced by that configuration. The root `AGENTS.md` makes updating the configuration and dependencies together a standing rule.
After the Loader settles, the shared `dsh-app-boot` checks every enabled entry that has no fiber and rejects startup with `plugin(s) failed to load: ...; Cordis startup failed because these plugin(s) could not be resolved`, listing all failed plugins. This diagnostic lives at the app layer and does not change the vendored Loader's startup behavior.
Node-compatible TypeScript is part of this source-launch contract. Vendored Cordis, Loader, Include, HMR, and Schemastery mark erased imports with `import type`. Schemastery uses a native ESM default export and declares `type: module`; its `.mjs` and `.cjs` build outputs retain the existing ESM-default and callable-`require()` behavior. These divergences are recorded in `vendor/README.md`; no runtime behavior is added to the vendored frameworks.
## Alternatives considered
**Continue using `tsx`.** Rejected because `tsx`/esbuild would continue to own TypeScript transformation, so this launch chain could not prove that Node's native transformation works.
**Load the built `lib/` through package exports from the source entry point.** Rejected because this would mix the source plane with the artifact plane; a zero-build development launch could read stale artifacts or fail outright.
**Apply the root tsconfig `paths` unconditionally.** Rejected because this would allow undeclared cross-package imports and Cordis plugins to keep resolving, hiding mismatches between the manifest and the actual runtime graph.
**Transform imports inside the custom loader.** Rejected because type-aware source rewriting would reintroduce a compiler-style transform and make the loader, rather than Node, responsible for TypeScript execution. Making the checked-in source Node-compatible keeps the launch boundary explicit.
## Consequences
- TUI/headless retain a zero-build source loop, while Web still builds its frontend artifacts before starting the CLI source entry. TypeScript syntax passes only through Node's native transform; the URL-only loader uses the checkout's root development dependencies and adds no CLI runtime dependency.
- Workspace package imports and Cordis configuration dependencies must both be declared explicitly in the resolver manifest; the static gate prevents configuration from landing before its dependencies, while extra dependencies are not errors.
- Plugin import failures no longer leave an incomplete application with exit code 0; the final error identifies both the Cordis startup failure and the specific plugin names, while the Loader's original error remains earlier in the logs.
- Vendored source in the CLI graph must remain compatible with Node's transform-types module semantics; the local-modification log makes the upstream sync obligation explicit.
- CI's `lib` mode, test/E2E launchers, and other example launchers retain their existing strategies; this native source loader covers only the `dsh` CLI application chain.

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# Agent Note: dsh 原生 TypeScript 源码启动
Status: implemented
[English](2026-07-28-dsh-native-typescript-source-launch.md) | 中文
## 问题
`dsh` 源码入口原本使用 `tsx` 运行 `apps/cli/src/bin.ts`TypeScript 转换和根 tsconfig 的 `paths` 解析都由同一个第三方 loader 隐式处理。改由 Node 原生处理 TypeScript 后Node 不会应用 tsconfig 路径映射;如果改为通过包导出解析,源码启动会混入可能陈旧或不存在的 `lib/` 产物。
Node 的转换也不执行类型分析。通过普通值 import 导入的类型会保留为运行时 ESM 请求,而 TypeScript 的 `export =` 会变成 CommonJS 赋值,而不是 ESM default export。因此源码图必须显式使用仅类型导入和原生 ESM 导出resolve hook 无法修复不兼容的源码语法。
Cordis 配置还引入了另一条解析边界。`cordis.yml` 中的 bare plugin 不经过 TypeScript import 分析,其解析方 manifest 可能漏掉所需依赖。Cordis Loader 会记录插件 import 错误,并留下没有 fiber 的 entry但不会让启动本身失败配置中的拼写错误因此可能得到退出码为 0 的残缺应用。
## 决策
`dsh` 的 TUI、Web 和无头源码启动使用 `node --experimental-transform-types`,由 Node 完成 TypeScript 转换,不加载 `tsx` 或 esbuild。`bin/dsh`、根级 `dsh`/TUI/Web demo 以及 Code Mode TUI 都进入同一条 `apps/cli/src/bin.ts` 启动链路。测试与 e2e 启动器保留各自现有策略,构建后的 `lib/bin.js` 继续由普通 Node 运行。
`scripts/tspath-loader.ts` 只注册一个模块 resolve hook。设置 `TSX_TSCONFIG_PATH` 时,它会使用该路径(相对路径从调用方的 cwd 解析),否则读取根 `tsconfig.json``TsconfigPathsResolver` 使用仓库已有的 TypeScript 开发工具沿该配置的 `extends` 链解析,按 tsconfig 规则选择精确或 wildcard `paths` 条目,并将命中的 workspace bare specifier 映射到 `.ts`/`.mts`/`.cts` 源文件或目录 index 文件。代码转换始终只由 Node 负责。该源码专用 loader 不属于构建后的 CLI`apps/cli` 也不会把 `typescript` 声明为运行时依赖。
只有当目标包是最近 package manifest 的自身名称或其已声明的运行时依赖时,源码 import 才会重定向。Cordis Loader 使用配置目录 URL 作为 import parent此时 resolver 会向上查找声明该插件的 workspace manifest。因此`examples/tui-agent/cordis.yml` 的依赖由 `examples/package.json` 持有,`apps/cli/cordis.yml` 的依赖由 `apps/cli/package.json` 持有。未命中 tsconfig paths、引用未声明依赖或不是 bare specifier 的说明符全部交回 Node 默认解析。
`verify-cordis-config` 对这两个解析方 manifest 执行单向完整性检查:配置中的每个 bare plugin package 都必须出现在对应 manifest 的 `dependencies`manifest 可以包含该配置未引用的额外依赖。根 `AGENTS.md` 将同步更新配置和依赖定为常驻规则。
Loader 完成结算后,共享的 `dsh-app-boot` 会检查每个已启用但没有 fiber 的 entry并以 `plugin(s) failed to load: ...; Cordis startup failed because these plugin(s) could not be resolved` 拒绝启动,同时列出全部加载失败的插件。该诊断位于应用层,不改变 vendor 中 Loader 的启动行为。
Node-compatible TypeScript 是这项源码启动契约的一部分。vendor 中的 Cordis、Loader、Include、HMR热模块替换和 Schemastery 使用 `import type` 标记会被擦除的导入。Schemastery 使用原生 ESM default export 并声明 `type: module`;其 `.mjs``.cjs` 构建产物分别保留现有的 ESM default export 行为和 `require()` 返回可调用值的行为。这些差异记录在 `vendor/README.md` 中;没有为 vendor 中的框架新增运行时行为。
## 曾考虑的替代方案
**继续使用 `tsx`。** 不采用,因为 `tsx`/esbuild 会继续负责 TypeScript 转换,本启动链路无法因此证明 Node 原生转换可用。
**让源码入口通过包导出加载构建后的 `lib/`。** 不采用,因为这会混合 source plane 与 artifact plane零构建开发启动可能读取陈旧产物或直接失败。
**无条件应用根 tsconfig `paths`。** 不采用,因为这会让未声明的跨包 import 和 Cordis 插件继续成功解析,从而掩盖 manifest 与实际运行图之间的不一致。
**在自定义 loader 内转换 import。** 不采用,因为感知类型的源码改写会重新引入编译器式转换,并让 loader 而非 Node 负责执行 TypeScript。使签入仓库的源码兼容 Node可以让启动边界保持显式。
## 后果
- TUI无头界面保留零构建源码回路Web 仍会在启动 CLI 源码入口前构建前端产物。TypeScript 语法只经过 Node 原生转换;仅处理 URL 的 loader 使用 checkout 根目录的开发依赖,不增加 CLI 运行时依赖。
- workspace package import 和 Cordis 配置依赖都必须在解析方 manifest 中明确声明;静态门禁防止配置先于依赖落地,额外依赖不构成错误。
- 插件 import 失败不再留下退出码为 0 的残缺应用;最终错误同时说明 Cordis 启动失败及具体插件名Loader 的原始错误仍会保留在更早的日志中。
- CLI 源码图中的 vendor 源码必须与 Node 的 transform-types 模块语义兼容;本地修改记录明确了上游同步义务。
- CI 的 `lib` 模式、测试e2e 启动器和其他示例启动器保留各自现有策略;该原生源码 loader 只覆盖 `dsh` CLI 应用链路。

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# 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/bug-fix/2026-07-28-load-pre-identity-session-messages.md
2026-07-28-load-pre-identity-session-messages.md: 2901527658421b37576bdf5b49e66829104a3b41
2026-07-28-load-pre-identity-session-messages.zh.md: 61d57ac9f3318299b63faa659b6d155e8e89fae3

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# Agent Note: Load sessions persisted before message identity
Status: implemented
English | [中文](2026-07-28-load-pre-identity-session-messages.zh.md)
## Problem
The identified immutable message change replaced four durable event payloads with complete message values. Existing v0 JSONL and SQLite sessions still held the immediately preceding shapes: direct `content`/`source` on user and steering events, `content`/`provenance` on assistant events, and `callId`/`content`/`isError` on tool results. Their headers still matched `SESSION_FORMAT_VERSION`, but current-shape validation rejected them before resume could construct a live `Session`.
Changing the message representation without a version bump made those logs indistinguishable at the header level from current v0 logs. The runtime needs a narrow import rule that restores data created by the supported first-party backends without weakening validation for unrelated obsolete or malformed events.
## Decision
`PersistenceCoordinator` normalizes the four exact pre-identity message payloads after backend decoding and before current message validation. It wraps their existing semantic fields in the current role-specific message shape and assigns `legacy-message:<session-id>:<event-seq>` as the deterministic imported `MessageId`. A legacy `tool/result` content replacement inherits the imported id of its replacement target, preserving the current content-only rewrite invariant.
The same normalization runs for `load`, `inspect`, an ownerless loaded state claiming its live session, and HMR prefix adoption. Prefix comparisons therefore compare the live current-shape seed with the same normalized stored view. Current-looking wrappers with missing or invalid fields are not repaired, and unsupported event vocabulary, request headers, versions, and surface relations retain their existing rejection paths.
The upgrade is read-only. Stored legacy records remain unchanged; a resumed session appends only current-shape events after them. Deterministic identities make repeated loads and a mixed legacy/current log reproduce the same message ids without a backend-specific rewrite transaction.
## Alternatives considered
**Reject the logs under the pre-release compatibility stance.** This is the default for unrelated v0 churn, but it strands real first-party sessions even though every old field maps unambiguously to the current message representation.
**Rewrite the complete stored log in place.** This would canonicalize the artifact but violate the append-only storage contract, require separate atomic replacement mechanisms for JSONL and SQLite, and expand a read compatibility fix into a migration system.
**Mint random ids on each load.** The messages would satisfy the type shape but lose stable identity across inspect, resume, restart, and mixed legacy/current appends.
## Consequences
Pre-identity JSONL and SQLite sessions resume with their original message content, sources, provider provenance, tool correlation, errors, metadata, and surface replacements. The returned events are otherwise indistinguishable from current imported message snapshots and remain deeply frozen.
This is one explicit same-version import exception, not a general v0 compatibility layer. Adding another exception requires another complete, unambiguous mapping at the persistence boundary; malformed current data continues to fail rather than being guessed into validity. The shared coordinator contract exercises the upgrade against the in-memory reference, JSONL, and SQLite backends, including deterministic reload and tool-result replacement identity.
## Related
- [Create every message as an identified immutable value](../architecture/2026-07-28-identified-immutable-message-values.md) — owns the current message identity and immutability contract.
- [Session persistence as an abstract service](../architecture/2026-06-14-session-persistence.md) — owns the append-only backend and resume boundary.

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# Agent Note: 加载消息标识机制引入前持久化的会话
Status: implemented
[English](2026-07-28-load-pre-identity-session-messages.md) | 中文
## 问题
带标识的不可变消息变更将四种持久事件载荷替换为完整消息值。现有的 v0 JSONL 和 SQLite 会话仍保留紧邻该变更之前的形状:用户事件和 steering中途引导事件直接携带 `content`/`source`assistant 事件携带 `content`/`provenance`,工具结果则携带 `callId`/`content`/`isError`。这些会话的 header 仍与 `SESSION_FORMAT_VERSION` 匹配,但当前形状验证会拒绝它们,导致恢复流程无法构造实时 `Session`
消息表示改变时没有提升版本,导致这些日志无法仅凭 header 与当前的 v0 日志区分。运行时需要一条范围受限的导入规则,既能恢复受支持的第一方后端所创建的数据,又不削弱对无关过时事件或格式错误事件的验证。
## 决策
`PersistenceCoordinator` 会在后端解码之后、当前消息验证之前,规范化消息标识机制引入前的四种特定消息载荷。它将载荷现有的语义字段包装进当前按角色区分的消息形状,并为其分配确定性的导入 `MessageId``legacy-message:<session-id>:<event-seq>`。旧版 `tool/result` 的内容替换会继承替换目标导入后的 id从而保持当前仅改写内容的不变量。
同一项规范化也用于 `load``inspect`、无 owner 的已加载状态认领其实时会话,以及 HMR热模块替换前缀接管。因此前缀比较会将实时的当前形状 seed 与同一份规范化存储视图进行比较。看似当前形状、但字段缺失或无效的包装层不会被修复;不受支持的事件词汇、请求 header、版本和 surface 关系仍沿用现有拒绝路径。
这项升级只发生在读取时。存储中的旧版记录保持不变;会话恢复后,只会在其后追加当前形状的事件。确定性标识使重复加载以及新旧形状混合的日志无需执行后端专用的重写事务,也能复现相同的消息 id。
## 考虑过的替代方案
**按照预发布兼容性立场拒绝这些日志。** 这是处理其他 v0 形状变动的默认方式,但即使每个旧字段都能明确映射到当前消息表示,它仍会导致真实的第一方会话无法恢复。
**就地重写完整的存储日志。** 这会使产物规范化,但违反仅追加存储契约,还需要为 JSONL 和 SQLite 分别实现原子替换机制,并将一次读取兼容性修复扩大为迁移系统。
**每次加载时随机生成 id。** 这些消息会满足类型形状,却无法在检查、恢复、重启以及新旧形状混合追加之间保持稳定标识。
## 后果
消息标识机制引入前的 JSONL 和 SQLite 会话可以恢复,并保留原始的消息内容、来源、提供方溯源信息、工具关联、错误、元数据和 surface 替换。除此之外,返回事件与当前导入的消息快照无法区分,并且仍然经过深度冻结。
这是一个显式的同版本导入例外,而非通用的 v0 兼容层。若要增加另一个例外必须在持久化边界提供另一套完整且无歧义的映射当前数据若格式错误系统仍会拒绝而不会猜测如何将其变成有效数据。共享协调器契约会针对内存参考实现、JSONL 和 SQLite 后端验证这项升级,包括重新加载时的确定性,以及工具结果替换时的标识继承。
## 相关
- [将每条消息创建为带标识的不可变值](../architecture/2026-07-28-identified-immutable-message-values.md):该记录负责当前的消息标识与不可变性契约。
- [会话持久化作为抽象服务](../architecture/2026-06-14-session-persistence.md):该记录负责仅追加后端与恢复边界。

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@@ -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
2026-07-20-dsh-cli-personal-config.md: 9525aa811d792a918f03a52c21bc273e92fb8be7
2026-07-20-dsh-cli-personal-config.zh.md: f21d4b1f22b3a3807b6b4155969282343f6048f5
# pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-20-dsh-cli-personal-config.md
2026-07-20-dsh-cli-personal-config.md: cc965438214b68078647596af5a28fd666e7bd95
2026-07-20-dsh-cli-personal-config.zh.md: 02f9c578061e1c25044c377c3ec8f80594275ae7

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@@ -12,7 +12,7 @@ A developer's own preferences — which provider and model the TUI uses, persona
Two coupled pieces, aligned with the `apps/` assembly tier proposed by the `dsh web` PR (#443):
**The `dsh` CLI (`apps/cli`, npm name `@deepseek-ai/dsh`).** `apps/*` joins the workspaces as the product-assembly tier over `packages/*` libraries. The bin's dispatch reserves `web` and `-p`/`--prompt` for PR #443 (they exit with a pointer) so the two branches merge as a near-union; everything else runs the default surface: the interactive TUI, booting the shipped `examples/tui-agent/cordis.yml` (or an explicit config argument) with the invoking directory as the workspace. The committed `bin/dsh` launcher resolves the checkout through its own real path and runs the bin **from source** via the repo's tsx, so `ln -sf "$(pwd)/bin/dsh" ~/.local/bin/dsh` installs a command that always executes the current working tree. `pnpm run demo:tui` runs the same entry.
**The `dsh` CLI (`apps/cli`, npm name `@deepseek-ai/dsh`).** `apps/*` joins the workspaces as the product-assembly tier over `packages/*` libraries. The bin's dispatch reserves `web` and `-p`/`--prompt` for PR #443 (they exit with a pointer) so the two branches merge as a near-union; everything else runs the default surface: the interactive TUI, booting the shipped `examples/tui-agent/cordis.yml` (or an explicit config argument) with the invoking directory as the workspace. The committed `bin/dsh` launcher resolves the checkout through its own real path and runs the bin **from source** through Node's native TypeScript transform plus the app-owned tsconfig-paths loader, so `ln -sf "$(pwd)/bin/dsh" ~/.local/bin/dsh` installs a command that always executes the current working tree. `pnpm run demo:tui` runs the same entry.
**Personal config (`dsh-app-boot`).** The personal overlay lives in the Harness home — `$DSH_HOME`, else `~/.dsh` — resolved by the shared [`resolveDshHome`](../architecture/2026-07-24-single-harness-home-resolver.md) (`@deepseek-ai/dsh-paths`), the same single root skills and AGENTS.md resolve against. The dsh TUI surface consumes its two optional files; the demo bins boot their committed trees verbatim:

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@@ -12,7 +12,7 @@ Status: implemented
两个耦合的部分,与 `dsh web` PR#443)提出的 `apps/` 装配层对齐:
**`dsh` CLI`apps/cli`npm 名 `@deepseek-ai/dsh`)。** `apps/*` 作为 `packages/*` 库之上的产品装配层加入 workspaces。bin 的分发把 `web``-p`/`--prompt` 保留给 PR #443(它们以指引退出),使两个分支能以接近并集的方式合并;其余一切都运行默认表面:交互式 TUI加载随仓库提供的 `examples/tui-agent/cordis.yml`(或显式的配置参数),并以调用目录为工作区。已提交的 `bin/dsh` 启动器通过自身真实路径解析 checkout用仓库的 tsx **从源码**运行该 bin因此 `ln -sf "$(pwd)/bin/dsh" ~/.local/bin/dsh` 安装的命令永远执行当前工作树。`pnpm run demo:tui` 运行同一入口。
**`dsh` CLI`apps/cli`npm 名 `@deepseek-ai/dsh`)。** `apps/*` 作为 `packages/*` 库之上的产品装配层加入 workspaces。bin 的分发把 `web``-p`/`--prompt` 保留给 PR #443(它们以指引退出),使两个分支能以接近并集的方式合并;其余一切都运行默认表面:交互式 TUI加载随仓库提供的 `examples/tui-agent/cordis.yml`(或显式的配置参数),并以调用目录为工作区。已提交的 `bin/dsh` 启动器通过自身真实路径解析 checkout通过 Node 的原生 TypeScript 转换和应用自身持有的 tsconfig-paths loader **从源码**运行该 bin因此 `ln -sf "$(pwd)/bin/dsh" ~/.local/bin/dsh` 安装的命令永远执行当前工作树。`pnpm run demo:tui` 运行同一入口。
**个人配置(`dsh-app-boot`)。** 个人 overlay 存放在 Harness home——`$DSH_HOME`,否则 `~/.dsh`——由共享的 [`resolveDshHome`](../architecture/2026-07-24-single-harness-home-resolver.md)`@deepseek-ai/dsh-paths`)解析,与 skills、AGENTS.md 解析所依据的单一根目录相同。dsh 的 TUI 表面消费其中两个可选文件;各示例 bin 仍然逐字节按已提交的配置树启动:

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@@ -2,5 +2,5 @@
# side as of the last confirmed-consistent state. Both languages carry equal authority;
# after editing either side, bring the other along and re-record with:
# pnpm run verify-translation-pairing --write .agents/notes/implemented/process/2026-06-16-pnpm-over-yarn.md
2026-06-16-pnpm-over-yarn.md: 918da1d056dfec73f78d849e08ad06d397e654c0
2026-06-16-pnpm-over-yarn.zh.md: 4fbb357f689b4a960d0662cbefa5bec30f79bcc1
2026-06-16-pnpm-over-yarn.md: 30b34c65fdea94b20dec4d627a0fca40de760fd1
2026-06-16-pnpm-over-yarn.zh.md: eb13890b7e7051301874b9273966771328b065a3

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@@ -8,7 +8,7 @@ English | [中文](2026-06-16-pnpm-over-yarn.zh.md)
The repo shipped on **Yarn 4** with the `node-modules` linker — a deliberately conservative choice that behaves like npm's flat layout while giving us Yarn's workspaces and `yarn constraints`. It worked. But Yarn 4's Plug'n'Play heritage makes the `node-modules` linker the off-the-beaten-path mode, and the broader JS ecosystem — tooling defaults, CI actions, Corepack examples, contributor familiarity — increasingly centers on pnpm. For a repo that is built primarily by agents and read by occasional human contributors, "the package manager most tools and people expect" has real value: fewer surprises, better-trodden failure paths, more copy-pasteable answers.
The switching cost is at its lowest right now. Nothing publishes from this repo yet (every package is `private: true`); dev/test/demo all run **unbuilt** via tsx, so the package manager only has to (a) resolve and link `node_modules`, (b) run the workspace scripts, and (c) enforce the workspace constraints. The one Yarn-specific asset is `yarn.config.cjs` (the `@yarnpkg/types` constraints engine), which is small and mechanical to re-express. This mirrors the reasoning in [the tsdown decision](../../archived/process/2026-06-11-tsdown-over-dumble.md): swap a load-bearing tool for the healthier-ecosystem option while the blast radius is still small.
The switching cost is at its lowest right now. Nothing publishes from this repo yet (every package is `private: true`); development, tests, and source-mode demos run through their declared TypeScript launchers, while artifact checks build explicitly. The package manager therefore only has to (a) resolve and link `node_modules`, (b) run the workspace scripts, and (c) enforce the workspace constraints. The one Yarn-specific asset is `yarn.config.cjs` (the `@yarnpkg/types` constraints engine), which is small and mechanical to re-express. This mirrors the reasoning in [the tsdown decision](../../archived/process/2026-06-11-tsdown-over-dumble.md): swap a load-bearing tool for the healthier-ecosystem option while the blast radius is still small.
## Decision

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@@ -8,7 +8,7 @@ Status: implemented
本仓库最初使用 **Yarn 4** 搭配 `node-modules` 链接器启动。这是一个刻意保守的选择:行为类似 npm 的扁平布局,同时享有 Yarn 的 workspaces 和 `yarn constraints`。它能正常工作。但 Yarn 4 源自 Plug'n'Play 的血统,使得 `node-modules` 链接器成为非主流模式;而更广泛的 JS 生态——工具默认值、CI action、Corepack 示例、贡献者的熟悉度——正日益以 pnpm 为中心。对于一个主要由 agent智能体构建、偶尔有人类贡献者阅读的仓库而言「大多数工具和人所期望的包管理器」具有实际价值更少的意外、更成熟的故障路径、更多可直接复用的解答。
切换成本目前处于最低点。本仓库尚无任何包package发布每个包都是 `private: true`);开发/测试/演示全部通过 tsx **未构建**运行,因此包管理器只需做到a解析并链接 `node_modules`b运行 workspace 脚本c强制执行 workspace 约束。唯一的 Yarn 特有资产是 `yarn.config.cjs``@yarnpkg/types` 约束引擎),体量小且可机械地重新表达。这与 [tsdown 决策](../../archived/process/2026-06-11-tsdown-over-dumble.md)的逻辑一致:在爆炸半径尚小时,将承重工具换为生态更健康的选项。
切换成本目前处于最低点。本仓库尚无任何包package发布每个包都是 `private: true`);开发流程、测试和源码模式 demo 都通过各自声明的 TypeScript 启动器运行,产物检查则会显式构建。因此包管理器只需做到a解析并链接 `node_modules`b运行 workspace 脚本c强制执行 workspace 约束。唯一的 Yarn 特有资产是 `yarn.config.cjs``@yarnpkg/types` 约束引擎),体量小且可机械地重新表达。这与 [tsdown 决策](../../archived/process/2026-06-11-tsdown-over-dumble.md)的逻辑一致:在爆炸半径尚小时,将承重工具换为生态更健康的选项。
## 决策

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@@ -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
2026-06-17-ts-build-config.md: 5bdfc5e170f12cd95a68f443ab8d02b16db554f3
2026-06-17-ts-build-config.zh.md: 9f74fb6be9c8e00a070e27a609edf8421a2b5ca6
# pnpm run verify-translation-pairing --write .agents/notes/implemented/process/2026-06-17-ts-build-config.md
2026-06-17-ts-build-config.md: 20dd3d8d0a11e01397c36388903cd112a170f0bf
2026-06-17-ts-build-config.zh.md: 196ed3f2921a4be6f65cd56fc496993b7121f484

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@@ -62,7 +62,7 @@ pnpm run clean:
tsx scripts/clean.ts
```
`pnpm run demo:*` still runs `src` directly through tsx and root paths, without a compile step.
The source-mode demos run through their declared TypeScript launchers and the root paths map. The `dsh` TUI chain uses Node's native transform plus its app-owned paths loader, the Web demo builds its required artifacts before entering that same CLI source chain, and the other source demos continue to use tsx.
## Alternatives considered
@@ -75,7 +75,7 @@ tsx scripts/clean.ts
Build responsibilities are clearer:
- Each module under `packages/<group>/<pkg>` and `vendor/*` has one local tsconfig for build, typecheck, and tools that run source directly, such as `tsx` and `vitest`.
- Each module under `packages/<group>/<pkg>` and `vendor/*` has one local tsconfig for build, typecheck, and tools that run source directly, such as the `dsh` source loader, `tsx`, and `vitest`.
- The `build` command drives the root solution graph. `tsc -b` owns the publishable per-module `.js` and `.d.ts` output, and the bundler owns only `lib/index.*`.
- `lib/types/*.d.ts` and `.d.ts.map` are the publish declaration output.
- `lib/types/*.d.ts` uses explicit `.ts` relative specifiers, which TypeScript's NodeNext/Node16 resolver maps to sibling `.d.ts` files.

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@@ -62,7 +62,7 @@ pnpm run clean:
tsx scripts/clean.ts
```
`pnpm run demo:*` 仍通过 tsx 和根路径直接运行 `src`,无需编译步骤
源码模式 demo 通过各自声明的 TypeScript 启动器和根路径映射运行`dsh` TUI 链使用 Node 原生转换及应用自有的路径 loaderWeb demo 在进入同一条 CLI 源码链路前先构建所需产物,其他源码 demo 继续使用 tsx
## 曾考虑的替代方案
@@ -75,7 +75,7 @@ tsx scripts/clean.ts
构建职责更加清晰:
- `packages/<group>/<pkg>``vendor/*` 下的每个模块有一份本地 tsconfig同时服务于构建、类型检查和直接运行源码的工具`tsx``vitest`)。
- `packages/<group>/<pkg>``vendor/*` 下的每个模块有一份本地 tsconfig同时服务于构建、类型检查和直接运行源码的工具`dsh` 源码 loader、`tsx``vitest`)。
- `build` 命令驱动根 solution 图。`tsc -b` 负责可发布的逐模块 `.js``.d.ts` 输出,打包器仅负责 `lib/index.*`
- `lib/types/*.d.ts``.d.ts.map` 是发布用的声明输出。
- `lib/types/*.d.ts` 使用显式 `.ts` 相对说明符TypeScript 的 NodeNext/Node16 解析器会将其映射到同级的 `.d.ts` 文件。

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@@ -2,5 +2,5 @@
# side as of the last confirmed-consistent state. Both languages carry equal authority;
# after editing either side, bring the other along and re-record with:
# pnpm run verify-translation-pairing --write .agents/notes/proposed/architecture/2026-07-27-session-projection-and-command-log.md
2026-07-27-session-projection-and-command-log.md: 51cc60208ecafd55738c12f1887056c7b0427117
2026-07-27-session-projection-and-command-log.zh.md: 71f6f6ea944c7c1bdd7e560ec8f0dc2528522fc1
2026-07-27-session-projection-and-command-log.md: 6a073c956c27bbfc65cff2d4f44ca12023df0cd5
2026-07-27-session-projection-and-command-log.zh.md: 500f07968db049e4a174ff3b7a075bfe095283db

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@@ -51,7 +51,7 @@ declare module 'cordis' {
- Values are wire JSON payloads; the same map typed end to end (host unit, wire block, React hook) via `import type` — no second DTO table, no separate client-side "views" map. How a value is *rendered* is the slot system's business, never the projection layer's.
- **The host is the only place a projection is computed.** The framework drives every registered unit forward eagerly: each committed session event passes through `apply`; a unit uninterested in an event returns the same state reference, and an unchanged reference (`Object.is`) produces no downstream work. Clients never fold domain events — they receive finished values (baseline block + push frame below). This removes the double-implementation trap (plan's two-event fold written once, on the host) and any client-side domain code.
- **State is always computed, never logged.** The log holds events only; the unit's state lives in the framework's per-session watermark cache (`{state, observedSeq}` per unit) and, in a later phase, in a **persisted projection cache** on the domain-KV storage seam: rows of `(sessionId, key, stateVersion, observedSeq, stateJson)`. A row is never wrong, only possibly stale — `observedSeq` says exactly how stale. The one read recipe, cold and live alike: take the cached state (or `init()`), forward-apply only the events past its watermark, `view` the result. Cold listings (every session's title across all workspaces) become an index read plus, at worst, a short tail replay; the session-persistence seam grows a read-from-seq primitive for that tail in the same later phase. Write policy: throttled (count/interval, configurable) plus two mandatory points — `turn/end` and detach (the live-to-cold moment). A crash between writes costs a longer tail replay, never a wrong value.
- **State is always computed, never logged.** The log holds events only; the unit's state lives in the framework's per-session watermark cache (`{state, observedSeq}` per unit) and, in a later phase, in a **persisted projection cache** on the domain-KV storage seam: rows of `(sessionId, key, ver, seq, val)` (`ver` = the unit's `stateVersion`, `seq` = the watermark, `val` = the state JSON). A row is never wrong, only possibly stale — its `seq` says exactly how stale. The one read recipe, cold and live alike: take the cached state (or `init()`), forward-apply only the events past its watermark, `view` the result. Cold listings (every session's title across all workspaces) become an index read plus, at worst, a short tail replay; the session-persistence seam grows a read-from-seq primitive for that tail in the same later phase. Write policy: throttled (count/interval, configurable) plus two mandatory points — `turn/end` and detach (the live-to-cold moment). A crash between writes costs a longer tail replay, never a wrong value.
- A domain's input event set is its own choice: todos folds `todo/write` alone; plan folds `plan/mode` plus its own `/plan` `command/run` records (see the plan section); goal folds `goal/change` metadata; session title folds its title events (retiring the bespoke `session/title` frame and the client's title-snapshot map — the fourth hand-rolled projection this seam absorbs).
- Registration is an effect (disposer with the fiber): an unloaded plugin's key disappears from subsequent responses and the client reads it as capability absence — HMR semantics for free. Duplicate keys throw. Domain plugins register under `ctx.inject(['sessionProjections'], …)` so headless assemblies without the registry stay unaffected.
- The package owns `./invariant` (every served key has a live registration).
@@ -133,7 +133,7 @@ Infrastructure first; the three in-flight PRs are left untouched and re-target a
2. **Client base**: the generic value store + `useProjection` seat; retire the per-domain cell machinery and, with title's unit registered, the `session/title` frame and title-snapshot map. Depends on 1 for the frame shape (fixtures feed synthetic frames meanwhile).
3. **Command channel**: the two events, executor logging, generic node + keyed slot, notice retirement, `{matched, commandId?}` admission. Parallel with 1.
4. **Domain re-targets** (after 1+2): todo (unit in `tool-todo`, drop the rider field), then plan (two-event unit, RPCs retired, toggle → `/plan`), then goal (`goal/change` unit, drop `goals.get`, move the six `Session` methods into the domain plugin's inject).
5. **Persisted projection cache** (later phase, after the domain-KV storage seam): the `(sessionId, key, stateVersion, observedSeq, state)` rows, throttled writes with turn/end + detach mandatory points, and the persistence read-from-seq primitive for cold tail replay.
5. **Persisted projection cache** (later phase, after the domain-KV storage seam): the `(sessionId, key, ver, seq, val)` rows, throttled writes with turn/end + detach mandatory points, and the persistence read-from-seq primitive for cold tail replay.
## Alternatives considered

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@@ -51,7 +51,7 @@ declare module 'cordis' {
- 值就是协议层的 JSON 载荷;同一张类型表经 `import type` 端到端贯通host 侧单元、协议块、React 钩子)——没有第二张 DTO 表也没有独立的客户端「views」表。值如何*渲染*是 slot 体系的事,永远不归投影层管。
- **host 是投影唯一的计算地点。** 框架正向驱动eager drive每个已注册的单元每个已提交的会话事件都经过 `apply`;对某事件不感兴趣的单元返回同一个状态引用,而引用未变(`Object.is`)就不产生任何下游工作。客户端从不折叠领域事件——它们收到的是成品值(基线块 + 下文的推送帧。这消除了双重实现陷阱plan 的双事件折叠只在 host 写一遍),也消除了一切客户端侧领域代码。
- **状态永远靠计算得出,绝不入日志。** 日志只存事件;单元的状态住在框架的按会话水位线缓存里(每单元一份 `{state, observedSeq}`),并在后续阶段进入 domain-KV 存储 seam 上的**持久投影缓存persisted projection cache**:形如 `(sessionId, key, stateVersion, observedSeq, stateJson)` 的行。一行永远不会是错的,至多是陈旧的——`observedSeq` 精确说明陈旧到哪。冷读与活读共用同一套读取配方:取缓存状态(或 `init()`),只对超出其水位线的事件做正向 `apply`,再对结果做 `view`。冷列表(跨全部 workspace 列出每个会话的标题变成一次索引读至多外加一小段尾部回放session-persistence seam 在同一后续阶段为这段尾部补一个按 seq 起读的原语。写入策略:节流(次数/间隔,可配置)外加两个强制点——`turn/end` 与 detach由活转冷的时刻。两次写入之间崩溃的代价是尾部回放更长一些绝不会是值出错。
- **状态永远靠计算得出,绝不入日志。** 日志只存事件;单元的状态住在框架的按会话水位线缓存里(每单元一份 `{state, observedSeq}`),并在后续阶段进入 domain-KV 存储 seam 上的**持久投影缓存persisted projection cache**:形如 `(sessionId, key, ver, seq, val)` 的行(`ver` = 单元的 `stateVersion``seq` = 水位线,`val` = 状态 JSON。一行永远不会是错的,至多是陈旧的——其 `seq` 精确说明陈旧到哪。冷读与活读共用同一套读取配方:取缓存状态(或 `init()`),只对超出其水位线的事件做正向 `apply`,再对结果做 `view`。冷列表(跨全部 workspace 列出每个会话的标题变成一次索引读至多外加一小段尾部回放session-persistence seam 在同一后续阶段为这段尾部补一个按 seq 起读的原语。写入策略:节流(次数/间隔,可配置)外加两个强制点——`turn/end` 与 detach由活转冷的时刻。两次写入之间崩溃的代价是尾部回放更长一些绝不会是值出错。
- 领域的输入事件集由领域自己选择todos 只折叠 `todo/write`plan 折叠 `plan/mode` 外加它自己的 `/plan` `command/run` 记录(见 plan 一节goal 折叠 `goal/change` 元数据;会话标题折叠其标题事件(顺带下线专设的 `session/title` 帧与客户端的标题快照表——这是该 seam 收编的第四个手工投影)。
- 注册是 effectdisposer 随 fiber 走):插件卸载后其 key 从后续响应中消失客户端将其读作能力缺失——HMR热模块替换语义随之自动成立。key 重复直接 throw。领域插件在 `ctx.inject(['sessionProjections'], …)` 下注册,因此不带注册表的 headless 组装完全不受影响。
- 该包拥有 `./invariant`(每个被服务的 key 都有一条存活的注册)。
@@ -133,7 +133,7 @@ host 侧命令执行器(`packages/ui/commands`)在调用处理器前追加 `
2. **客户端基座**:通用值仓 + `useProjection` 席位;下线按领域的 cell 机制,并在标题单元注册后一并下线 `session/title` 帧与标题快照表。帧的形状依赖 1在此之前 fixture测试前置数据喂合成帧
3. **命令通道**:两个事件、执行器落日志、通用节点 + keyed slot、通知通道下线、`{matched, commandId?}` 准入。与 1 并行。
4. **领域重新对接**(在 1+2 之后):先 todo单元进 `tool-todo`,删掉搭载字段),再 plan双事件单元、RPC 下线、开关改发 `/plan`),最后 goal`goal/change` 单元,删掉 `goals.get`,把六个 `Session` 方法移入领域插件的 inject
5. **持久投影缓存**(后续阶段,待 domain-KV 存储 seam 就绪后):`(sessionId, key, stateVersion, observedSeq, state)` 行、带 turn/end 与 detach 强制点的节流写入,以及持久化侧供冷尾部回放用的按 seq 起读原语。
5. **持久投影缓存**(后续阶段,待 domain-KV 存储 seam 就绪后):`(sessionId, key, ver, seq, val)` 行、带 turn/end 与 detach 强制点的节流写入,以及持久化侧供冷尾部回放用的按 seq 起读原语。
## Alternatives considered

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# 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/proposed/architecture/2026-07-28-storage-root-and-derived-medium-recovery.md
2026-07-28-storage-root-and-derived-medium-recovery.md: 06fa98b10dc5ac3164d8905e7005a42d9e99ae92
2026-07-28-storage-root-and-derived-medium-recovery.zh.md: b7bd18ffdbfaf412d9a91940cf1770e273f5b847

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@@ -0,0 +1,57 @@
# Agent Note: Storage root placement and derived-medium recovery
Status: proposed
English | [中文](2026-07-28-storage-root-and-derived-medium-recovery.zh.md)
## Problem
The persisted projection cache ([RFC](2026-07-27-session-projection-and-command-log.md), shipped as `dsh-session-projection-cache`) surfaced two gaps in the storage substrate it landed on. Both are properties of the domain-KV stack ([design](2026-07-24-domain-kv-storage-and-workspace.md)), not of the cache itself, and both bite the cache first because it is the first *derived* medium on that stack.
**Where the files actually live.** The shipped composition gives the json backend a relative root — `root: './.storages'` (apps/cli/cordis.yml) — and `AppCLIEntry.composePatches` patches only the session store's root to the global harness home (`$DSH_HOME/sessions`, default `~/.dsh/sessions`, profile-overridable via `persistenceRoot`); no equivalent patch or profile key exists for `storage-json`. `JsonStorageBackend` never resolves its root either — each unit open joins the still-relative path against whatever `process.cwd()` is at that moment (packages/storage/storage-json/src/index.ts) — the exact hazard the JSONL session backend resolves-once to prevent ("later process.cwd() changes cannot split one backend across roots", packages/session-persistence/session-persistence-jsonl/src/index.ts). Net effect: session logs are global across launch directories, but `workspace.json` and `session_projcache.json` land under `<launch dir>/.storages/`. Two launches from different directories share their sessions yet see different workspace registries and different projection caches — and the cache exists precisely to serve the cross-session cold listing, which now misses for every session last cached under another launch directory.
**How recovery works today.** Inside a healthy medium the cache is fully self-healing by design: a `stateVersion`-mismatched row is discarded and refolded, a log shrunk below a row's watermark is detected by the anchored restore floor and answered with one full re-read, and every background write is fail-soft. But at the *medium* level there is no recovery at all: a truncated, hand-edited, or version-bumped `session_projcache.json` fails `openJsonUnit` with `malformed-medium`/`version-mismatch` (packages/storage/storage-json/src/format.ts), a schema-drifted record fails domain open with `invalid-record` (packages/storage/storage-domain/src/index.ts), the rejection propagates through `SessionProjectionCache[Service.init]`, and under the CLI's fail-loud boot the assembly refuses to start. A file whose entire content is rebuildable from session logs can brick boot. This contradicts the cache package's own stated stance ("a stale or unreadable cache costs a longer tail replay, never a wrong value") and the cache domain spec's JSDoc ("version bumps discard the whole medium"), which today describes an aspiration, not the implementation. The same fail-loud path is *correct* for `workspace.json` — workspace records are authoritative, not derivable — so the missing concept is a per-domain declaration of authority, not a global behavior change.
## Proposal
Two independent changes, one per gap.
### One global storage root, resolved once
- `AppCLIEntry.composePatches` Source 0 additionally patches `storage-json.root` to `join(resolveDshHome(), 'storages')``~/.dsh/storages` by default, beside `~/.dsh/sessions` — and `PROFILE_MAPPINGS` gains `storageRoot` → (`storage-json`, `root`), mirroring `persistenceRoot` exactly. The yml keeps `./.storages` as the raw-composition engineering default (tests and bare Loader boots are unaffected), same layering as the session root today.
- `JsonStorageBackend` resolves its configured root once at construction (`resolve(config.root)`), adopting the JSONL backend's recorded rationale verbatim: a later `process.cwd()` change must not split one backend across roots. The SQLite storage backend already resolves its path.
- Pre-release stance applies: no migration shim. A deployment that cached under `<cwd>/.storages` re-derives everything (workspace re-bootstraps from the header index; the projection cache refolds lazily) or moves the two json files by hand once.
### Declared derived media: reset instead of reject
- `DomainSpec` gains `recovery?: 'reject' | 'reset'` (default `'reject'`). The spec object is already the single source of a domain's identity and layout; whether its medium is authoritative or derived is the same kind of fact and lives in the same place. `session_projcache` declares `'reset'`; `workspace` stays on the default.
- `KvFacet` gains one primitive: `destroy(descriptor): Promise<void>` — remove the unit's medium entirely (json: delete the file; sqlite: drop the unit's tables). Like `open`, it is a backend storage primitive, not policy.
- `DomainFacility.open`, when a spec declares `'reset'` and the open fails with exactly a damage-class error — `StorageError('version-mismatch' | 'malformed-medium')` or `DomainError('invalid-record')` — logs one warning naming the domain and the discarded medium, calls `destroy`, and opens again empty. Every other failure (`backend-not-found`, `facet-unsupported`, `already-open`, I/O errors) stays loud regardless of the declaration: misconfiguration and environmental faults are not medium damage. The retry is single-shot — a second failure propagates, so a persistently failing medium cannot loop.
- With this in place the cache domain spec's version field gains its intended meaning: bumping `version` (or letting zod reject drifted rows) genuinely discards the whole medium and the cache rebuilds through its normal write points and cold reads — the recovery ladder's outermost rung, matching the row-level rungs already shipped.
## Alternatives considered
**Keep per-launch-directory `.storages` (status quo)** — rejected: sessions are global, so every derived-from-sessions medium splits against its own source of truth; the cache's motivating scenario (one listing over all sessions) structurally misses rows, and the workspace registry indexes sessions it cannot see from another launch directory.
**Patch only the projection cache's route to a global root, leave `workspace.json` per-cwd** — rejected: the workspace registry has the identical global-vs-cwd mismatch, and the user decision that shaped the cache placed it deliberately beside `workspace.json` — one hub root keeps the media co-located and the mental model single.
**Cache-plugin-local recovery (catch damage errors in `SessionProjectionCache[Service.init]`, delete the file, reopen)** — rejected: the plugin cannot name the medium path without reaching around the backend abstraction, and every future derived domain would re-implement the same catch; the facility is the one place that already classifies open failures.
**Fall back to an ephemeral in-memory domain on damage** — rejected: it silently degrades to memory-only for the life of the process and the damaged file never heals; the next boot fails the same way.
**Rename the damaged medium aside (`<unit>.json.corrupt-<ts>`) instead of deleting** — not chosen: a derived medium's damaged bytes have no recovery value (the logs are the source of truth) and the litter accumulates unbounded; delete is the honest operation. Rename-aside remains the right choice if a future *authoritative* domain ever wants reset semantics — which is exactly why `recovery` is per-spec.
**A blanket auto-reset for every domain (no spec field)** — rejected outright: `workspace.json` is authoritative user data; silently resetting it on a version bump would destroy workspaces. Authority is a property of the domain and must be declared by its owner.
## Acceptance criteria
- `dsh` launched from any directory reads and writes the same `$DSH_HOME/storages/*.json` (default `~/.dsh/storages`); the profile key `storageRoot` overrides it; a raw Loader boot of the yml still lands in `./.storages` relative to the boot cwd, resolved once at backend construction.
- With a truncated, version-bumped, or schema-drifted `session_projcache.json`, the assembly boots clean: one warning names the discarded medium, the file is gone, the cache rebuilds through normal operation, and the cold listing column reappears as sessions are re-checkpointed.
- The same damage to `workspace.json` still fails boot loudly.
- Facility tests cover: each damage class resets a `'reset'` domain exactly once; non-damage failures stay loud on a `'reset'` domain; a `'reject'` domain propagates every failure; `destroy` removes the medium on both shipped backends.
## Risks
- **Auto-delete on a misclassified error destroys a healthy file.** Mitigated by the closed damage-class list: reset fires only on the three deterministic parse-time codes; ENOENT is already "empty unit", and every I/O error (EACCES, EIO) propagates loudly. The single-shot retry bounds the blast radius to one delete per open.
- **Root relocation changes where existing checkouts look.** Accepted under the pre-release stance (backends reject old formats, no external consumers); the note above records the one-time manual move for anyone who cares about a per-cwd `workspace.json`'s content.
- **`destroy` is a new destructive primitive on the storage seam.** Its only caller is the facility's declared-reset path; the backend contract documents it as facility-owned, and nothing model-facing or user-facing can reach it.

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# Agent Note存储根目录落点与派生介质恢复
Status: proposed
[English](2026-07-28-storage-root-and-derived-medium-recovery.md) | 中文
## Problem
持久投影缓存([RFC](2026-07-27-session-projection-and-command-log.md),已作为 `dsh-session-projection-cache` 落地)暴露了它所依托的存储基座的两个缺口。二者都是 domain-KV 栈([设计](2026-07-24-domain-kv-storage-and-workspace.md))的属性而非缓存自身的问题,且都首先咬到缓存——因为它是这条栈上第一个*派生*介质。
**文件到底存在哪。** 出厂组合给 json 后端的是相对根目录——`root: './.storages'`apps/cli/cordis.yml——而 `AppCLIEntry.composePatches` 只把会话存储的根 patch 到全局 harness home`$DSH_HOME/sessions`,默认 `~/.dsh/sessions`,可经 profile 键 `persistenceRoot` 覆盖);`storage-json` 没有对应的 patch 也没有 profile 键。`JsonStorageBackend` 自己也从不 resolve 根——每次打开 unit 都把仍然相对的路径 join 到当时的 `process.cwd()`packages/storage/storage-json/src/index.ts——这正是 JSONL 会话后端用「构造时 resolve 一次」防住的那个隐患("later process.cwd() changes cannot split one backend across roots"packages/session-persistence/session-persistence-jsonl/src/index.ts。净效果会话日志跨启动目录全局共享`workspace.json``session_projcache.json` 落在 `<启动目录>/.storages/` 下。从两个不同目录启动,会话相同,工作区注册表和投影缓存却各是一份——而缓存存在的意义恰恰是跨会话冷列表,如今凡是上次在别的启动目录下缓存过的会话全部 miss。
**现在是怎么恢复的。** 在健康介质内部,缓存按设计完全自愈:`stateVersion` 不匹配的行被丢弃重折,日志缩短到行水位以下由带锚的 restore floor 检出并以一次全量重读回答,每次后台写都是 fail-soft。但在*介质*层面完全没有恢复:被截断、被手改或版本被 bump 的 `session_projcache.json` 会让 `openJsonUnit``malformed-medium`/`version-mismatch` 失败packages/storage/storage-json/src/format.tsschema 漂移的记录让域 open 以 `invalid-record` 失败packages/storage/storage-domain/src/index.ts拒绝一路穿过 `SessionProjectionCache[Service.init]`,在 CLI 的 fail-loud 启动下整个组装拒绝启动。一个内容完全可从会话日志重建的文件能把启动搞死。这与缓存包自己声明的立场("a stale or unreadable cache costs a longer tail replay, never a wrong value")和缓存域 spec 的 JSDoc"version bumps discard the whole medium")相矛盾——后者今天描述的是愿望而非实现。同一条 fail-loud 路径对 `workspace.json` 却是*正确*的——工作区记录是权威数据,不可派生——所以缺的概念是按域声明权威性,而不是全局改行为。
## Proposal
两个独立改动,一个缺口一个。
### 全局唯一存储根,构造时 resolve 一次
- `AppCLIEntry.composePatches` 的 Source 0 追加把 `storage-json.root` patch 到 `join(resolveDshHome(), 'storages')`——默认 `~/.dsh/storages`,与 `~/.dsh/sessions` 并肩——并且 `PROFILE_MAPPINGS` 增加 `storageRoot` →(`storage-json``root`),与 `persistenceRoot` 完全镜像。yml 保留 `./.storages` 作为裸组合的工程默认(测试和裸 Loader 启动不受影响),分层方式与今天的会话根相同。
- `JsonStorageBackend` 在构造时对配置根 `resolve` 一次,原样采纳 JSONL 后端已记录的理由:后续 `process.cwd()` 变化不得把一个后端劈到多个根下。SQLite 存储后端已经 resolve 其路径。
- 适用 pre-release 立场:不做迁移垫片。曾在 `<cwd>/.storages` 下缓存过的部署要么全部重新派生(工作区从 header 索引重新 bootstrap投影缓存惰性重折要么手动把两个 json 文件挪一次。
### 声明派生介质:损坏时重置而非拒绝
- `DomainSpec` 增加 `recovery?: 'reject' | 'reset'`(默认 `'reject'`。spec 对象已经是一个域的身份与布局的单一来源;其介质是权威还是派生属于同类事实,落在同一处。`session_projcache` 声明 `'reset'``workspace` 保持默认。
- `KvFacet` 增加一个原语:`destroy(descriptor): Promise<void>`——整体移除该 unit 的介质json删文件sqlitedrop 该 unit 的表)。与 `open` 一样,它是后端存储原语,不是策略。
- `DomainFacility.open` 在 spec 声明 `'reset'` 且 open 恰以损坏类错误失败时——`StorageError('version-mismatch' | 'malformed-medium')``DomainError('invalid-record')`——记一条命名该域和被丢弃介质的警告,调用 `destroy`,再空开一次。其余一切失败(`backend-not-found``facet-unsupported``already-open`、I/O 错误)无论声明与否都保持大声:配置错误和环境故障不是介质损坏。重试单发——第二次失败原样传播,持续失败的介质不会成环。
- 有了这个,缓存域 spec 的 version 字段才获得其本意bump `version`(或让 zod 拒绝漂移行)真正丢弃整个介质,缓存经正常写点和冷读重建——恢复阶梯的最外一档,与已落地的行级各档对齐。
## Alternatives considered
**保持按启动目录的 `.storages`(现状)**——拒绝:会话是全局的,所以每个从会话派生的介质都与自己的真源劈叉;缓存的动机场景(一次列出全部会话)结构性丢行,工作区注册表索引着从另一个启动目录看不见的会话。
**只把投影缓存的 route 指到全局根,`workspace.json` 留在 per-cwd**——拒绝:工作区注册表有一模一样的全局 vs per-cwd 错位,而且塑造缓存的用户决策就是刻意把它放在 `workspace.json` 旁边——一个 hub 根让介质同址、心智模型单一。
**缓存插件本地恢复(在 `SessionProjectionCache[Service.init]` 捕获损坏错误、删文件、重开)**——拒绝:插件不越过后端抽象就叫不出介质路径,且未来每个派生域都要重抄同一段 catchfacility 是唯一已经在分类 open 失败的地方。
**损坏时退到内存态临时域**——拒绝:进程余生静默降级为仅内存,损坏文件永不自愈;下次启动照样失败。
**把损坏介质改名旁置(`<unit>.json.corrupt-<ts>`)而非删除**——未选:派生介质的损坏字节没有恢复价值(日志才是真源),残骸无界累积;删除才是诚实的操作。若未来某个*权威*域想要重置语义,旁置改名才是对的——这正是 `recovery` 按 spec 声明的理由。
**所有域一律自动重置(不加 spec 字段)**——断然拒绝:`workspace.json` 是权威用户数据;版本 bump 时静默重置会毁掉工作区。权威性是域的属性,必须由其所有者声明。
## Acceptance criteria
- 从任意目录启动 `dsh` 都读写同一份 `$DSH_HOME/storages/*.json`(默认 `~/.dsh/storages`profile 键 `storageRoot` 可覆盖;裸 Loader 启动 yml 仍落在相对启动 cwd 的 `./.storages`,并在后端构造时 resolve 一次。
- `session_projcache.json` 被截断、版本 bump 或 schema 漂移时,组装干净启动:一条警告命名被丢弃的介质,文件消失,缓存经正常运转重建,冷列表列随会话重新 checkpoint 逐步回归。
- 同样的损坏发生在 `workspace.json` 上仍大声拒绝启动。
- facility 测试覆盖:每个损坏类恰好重置一次 `'reset'` 域;非损坏失败在 `'reset'` 域上保持大声;`'reject'` 域传播一切失败;`destroy` 在两个出厂后端上都移除介质。
## Risks
- **错误分类失误导致自动删除健康文件。** 由封闭的损坏类清单缓解重置只在三个确定性解析期代码上触发ENOENT 本来就是「空 unit」,一切 I/O 错误EACCES、EIO大声传播。单发重试把爆炸半径限定为每次 open 至多一删。
- **根迁移改变既有 checkout 的查找位置。** 在 pre-release 立场下接受(后端拒绝旧格式、无外部消费者);上文为在乎 per-cwd `workspace.json` 内容的人记录了一次性手动搬移。
- **`destroy` 是存储 seam 上新增的破坏性原语。** 唯一调用方是 facility 的声明重置路径;后端契约将其记档为 facility 专属,任何面向模型或面向用户的路径都触不到它。