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fix(fs): address review — rename to dsh-fs-policy, fs/*-intent events, RFC currency, ENOTDIR

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Rename per review naming decisions:
- package dsh-file-context → dsh-fs-policy (dir, package name, plugin name,
  tsconfig refs, importers, type-equiv manifest, generated catalog + module-graph)
- events fs/write-expectation → fs/write-intent, fs/edit-expectation → fs/edit-intent
  (fs/observed unchanged); type FsWriteExpectation → FsWriteIntent, "expectation"
  wording → "intent" throughout
- exported FileContextExec → FsPolicyExec

Make the implemented RFCs describe what shipped, not the superseded designs:
the 2026-06-17 capability-seam + tool-schemas RFCs no longer place policy on
ctx.fs or use full/partial-view authorization, and the fsspec RFC's ctx.fileContext
service prose is rewritten to the fs/* event-gate reality (freshness-based auth).
Sharpen docs/rfc/implemented/AGENTS.md: a rename is a fact to fix IN PLACE — the
"new RFC" escape hatch is for macro decision reversals only, not renames.

Code fixes from review:
- fsio.ts resolveLocalTarget/probe translate ENOTDIR (a parent path segment is a
  file) into the structured FsError taxonomy instead of leaking a raw Node error;
  resolve reports FS_NOT_FOUND, probe reports absent. Regression tests proven to
  fail on the unfixed code.
- tool-fs HMR test now asserts prompt sections (not just tool schemas) are
  withdrawn on disposal.
- fs/observed is a plain (unguarded) ctx.emit: correct the fs-policy comment,
  filesystem.md, and tool-fs module doc that wrongly claimed the tool "contains"
  a throwing listener; a throw surfaces as the tool's isError result.
- drop the false "loaded by the default product config" claim (no config wires
  the fs tools yet), the duplicate ctx.bash service-map row, the stale
  FileReadRequest catalog link-map entry, and the fs/fs README EOF blank line;
  correct the dsh-fs package.json description.
This commit is contained in:
Tianyi Cui
2026-07-02 03:12:38 +08:00
parent e4b4eaaf38
commit 30c1863755
42 changed files with 360 additions and 323 deletions
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22
docs/cordis-catalog/events-and-services.md
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@@ -199,12 +199,12 @@ Source: [`packages/core/agent/src/types.ts:163`](../../packages/core/agent/src/t
### `fs/*`
#### `fs/edit-expectation` — waterfall
#### `fs/edit-intent` — waterfall
Single-slot decision: produce the optional version guard for the next FileSystem.editText. The tool dispatches this as an unbound waterfall and supplies a default thunk returning `undefined` (unconditional edit of the current content — the bare provider; no `stat`). The `@deepseek-ai/dsh-file-context` policy listener returns `{ version: vObserved }`, or throws `FS_NOT_OBSERVED` if the actor is unset or has not observed the target. Does NOT call `next()`: one decision, first-wins (see Events.'fs/write-expectation').
Single-slot decision: produce the optional version guard for the next FileSystem.editText. The tool dispatches this as an unbound waterfall and supplies a default thunk returning `undefined` (unconditional edit of the current content — the bare provider; no `stat`). The `@deepseek-ai/dsh-fs-policy` policy listener returns `{ version: vObserved }`, or throws `FS_NOT_OBSERVED` if the actor is unset or has not observed the target. Does NOT call `next()`: one decision, first-wins (see Events.'fs/write-intent').
```ts cordis-catalog
'fs/edit-expectation'(target: FsTarget, actor: object | undefined, next: () => { version: FsVersion } | undefined | Promise<{ version: FsVersion } | undefined>): Promise<{ version: FsVersion } | undefined>
'fs/edit-intent'(target: FsTarget, actor: object | undefined, next: () => { version: FsVersion } | undefined | Promise<{ version: FsVersion } | undefined>): Promise<{ version: FsVersion } | undefined>
```
Types: [FsTarget](../core-data-structures/filesystem.md) · [FsVersion](../core-data-structures/filesystem.md)
@@ -213,7 +213,7 @@ Source: [`packages/fs/fs/src/index.ts:117`](../../packages/fs/fs/src/index.ts)
#### `fs/observed` — emit
Record that an actor observed a target at a version, after a successful read/write/edit. Fire-and-forget (plain `emit`). A listener MUST be a synchronous, side-effect-only recorder (`@deepseek-ai/dsh-file-context`'s is a `WeakMap.set`): the tool does not guard the emit, so a listener that throws surfaces as the tool's `isError` result, and cordis `emit` does not await listener promises — async or fallible audit/telemetry does not belong here. No listener ⇒ nothing recorded. `actor` is the opaque tool-execution context.
Record that an actor observed a target at a version, after a successful read/write/edit. Fire-and-forget (plain `emit`). A listener MUST be a synchronous, side-effect-only recorder (`@deepseek-ai/dsh-fs-policy`'s is a `WeakMap.set`): the tool does not guard the emit, so a listener that throws surfaces as the tool's `isError` result, and cordis `emit` does not await listener promises — async or fallible audit/telemetry does not belong here. No listener ⇒ nothing recorded. `actor` is the opaque tool-execution context.
```ts cordis-catalog
'fs/observed'(target: FsTarget, version: FsVersion, actor: object | undefined): void
@@ -223,15 +223,15 @@ Types: [FsTarget](../core-data-structures/filesystem.md) · [FsVersion](../core-
Source: [`packages/fs/fs/src/index.ts:129`](../../packages/fs/fs/src/index.ts)
#### `fs/write-expectation` — waterfall
#### `fs/write-intent` — waterfall
Single-slot decision: produce the write expectation for the next FileSystem.writeText. The tool dispatches this as an unbound waterfall (no `this`) and supplies a default thunk returning `undefined` (unconditional create-or-overwrite — the bare provider). The `@deepseek-ai/dsh-file-context` policy listener returns `createIfAbsent` (unobserved actor) or `{ kind: 'replaceIfVersion', version: vObserved }` (observed) and does NOT call `next()` — one decision, not a composable chain. The slot is first-wins: the first non-`next()` decider (registration order, or `prepend`) occupies it; a second decider is a misconfiguration, not layering. `actor` is the opaque tool-execution context, never read here.
Single-slot decision: produce the write intent for the next FileSystem.writeText. The tool dispatches this as an unbound waterfall (no `this`) and supplies a default thunk returning `undefined` (unconditional create-or-overwrite — the bare provider). The `@deepseek-ai/dsh-fs-policy` policy listener returns `createIfAbsent` (unobserved actor) or `{ kind: 'replaceIfVersion', version: vObserved }` (observed) and does NOT call `next()` — one decision, not a composable chain. The slot is first-wins: the first non-`next()` decider (registration order, or `prepend`) occupies it; a second decider is a misconfiguration, not layering. `actor` is the opaque tool-execution context, never read here.
```ts cordis-catalog
'fs/write-expectation'(target: FsTarget, actor: object | undefined, next: () => FsWriteExpectation | undefined | Promise<FsWriteExpectation | undefined>): Promise<FsWriteExpectation | undefined>
'fs/write-intent'(target: FsTarget, actor: object | undefined, next: () => FsWriteIntent | undefined | Promise<FsWriteIntent | undefined>): Promise<FsWriteIntent | undefined>
```
Types: [FsTarget](../core-data-structures/filesystem.md) · [FsWriteExpectation](../core-data-structures/filesystem.md)
Types: [FsTarget](../core-data-structures/filesystem.md) · [FsWriteIntent](../core-data-structures/filesystem.md)
Source: [`packages/fs/fs/src/index.ts:105`](../../packages/fs/fs/src/index.ts)
@@ -440,7 +440,7 @@ Semantics every backend must honor:
- resolve returns a stable FsTarget; the same underlying file reached by different input paths must yield the same `targetKey` so stale guards and target lookup agree across paths (e.g. through symlinks).
- stat returns FsInfo metadata (never content) or `undefined` when the target is absent.
- readText/streamText read the whole regular text file (the stream for large files); both own regular-file checks, UTF-8 decoding, binary/NUL rejection, and `FS_NOT_TEXT`.
- writeText is atomic temp-file + rename. `expected` is OPTIONAL: omit it for an unconditional create-or-overwrite (the bare-provider default), or supply a FsWriteExpectation to guard the write.
- writeText is atomic temp-file + rename. `expected` is OPTIONAL: omit it for an unconditional create-or-overwrite (the bare-provider default), or supply a FsWriteIntent to guard the write.
- editText verifies `expected.version` BEFORE literal matching (so a stale edit reports `FS_STALE_VERSION`, not `FS_EDIT_NOT_FOUND`/ `FS_AMBIGUOUS_EDIT` against newer content), then applies literal replacement and writes atomically — all inside one mutation critical section. `expected` is OPTIONAL: omit it for an unconditional edit of the current content (a missing target still reports `FS_STALE_VERSION`).
```ts cordis-catalog
@@ -448,11 +448,11 @@ abstract resolve(path: string): Promise<FsTarget>
abstract stat(target: FsTarget, signal?: AbortSignal): Promise<FsInfo | undefined>
abstract readText(target: FsTarget, signal?: AbortSignal): Promise<string>
abstract streamText(target: FsTarget, signal?: AbortSignal): Promise<AsyncIterable<string>>
abstract writeText(target: FsTarget, content: string, expected?: FsWriteExpectation, signal?: AbortSignal): Promise<FsWriteOutcome>
abstract writeText(target: FsTarget, content: string, expected?: FsWriteIntent, signal?: AbortSignal): Promise<FsWriteOutcome>
abstract editText(target: FsTarget, edit: FsEditRequest, expected?: { version: FsVersion }, signal?: AbortSignal): Promise<FsEditOutcome>
```
Types: [FsEditOutcome](../core-data-structures/filesystem.md) · [FsEditRequest](../core-data-structures/filesystem.md) · [FsInfo](../core-data-structures/filesystem.md) · [FsTarget](../core-data-structures/filesystem.md) · [FsVersion](../core-data-structures/filesystem.md) · [FsWriteExpectation](../core-data-structures/filesystem.md) · [FsWriteOutcome](../core-data-structures/filesystem.md)
Types: [FsEditOutcome](../core-data-structures/filesystem.md) · [FsEditRequest](../core-data-structures/filesystem.md) · [FsInfo](../core-data-structures/filesystem.md) · [FsTarget](../core-data-structures/filesystem.md) · [FsVersion](../core-data-structures/filesystem.md) · [FsWriteIntent](../core-data-structures/filesystem.md) · [FsWriteOutcome](../core-data-structures/filesystem.md)
Source: [`packages/fs/fs/src/index.ts:158`](../../packages/fs/fs/src/index.ts)