95a8e3f949
- While a picking flow is open (native chooser pending, browse dialog up) or its pick is being adopted, every other menu action disables: a late outcome must not race a concurrent selection or creation (ds-review-bot warning). - ctx.directoryPicker joins the architecture Capability Services map (both languages); neighboring rows condensed to keep the doc inside its ceiling. - directory-picker-browse documents that its client half lands in the next stacked PR: a -browse composition today hides the picking affordance (the documented empty-hole default) rather than misbehaving (ds-review-bot critical; the dialog itself ships in #821).
23 lines
2.8 KiB
Markdown
23 lines
2.8 KiB
Markdown
# @deepseek-ai/dsh-host-directory-picker-browse
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English | [中文](README.zh.md)
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The **in-app browsing backend** of the [directory-picker seam](../directory-picker/README.md): `BrowseDirectoryPicker` registers `ctx.directoryPicker` with the `browse` capability — one-level directory listing and child-directory creation over Node's stdlib, which already carries the per-OS adaptation. Nothing renders on the host display, so this backend serves remote clients the native backend cannot.
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Behavior facts: listings return **directories only**, name-sorted, with symlinks-to-directories followed (broken/cyclic links skipped — the probe `stat` failing means "not enterable") and a host-owned `hidden` flag (POSIX dot convention) left for the client to act on; `crumbs` is the root-to-target ancestor chain, the root crumb labeled by its full path (`/`, `C:\`); an absent `list` path means the host account's home directory. `createDirectory` is non-recursive (a missing parent is a real failure, not a level to invent) and validates the name as a single non-blank segment even when called directly, mirroring the wire schema's fence. Both primitives reject an explicit path that is not fully qualified — relative forms, and on Windows the rooted drive-less forms (`\foo`, `/foo`) and incomplete UNC prefixes (`\\`, `\\server`) that `isAbsolute` accepts — with `directory-unreadable`/`directory-create-failed`, instead of letting `resolve` rebase it under the host process cwd or current drive. Failures throw the seam's typed `DirectoryPickerError`. Policy rationale: [the directory-picker capability seam Agent Note](../../../.agents/notes/implemented/architecture/2026-07-28-directory-picker-capability-seam.md).
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## Model Experience
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None, as the backend serves the GUI host's directory selection; nothing here reaches a model request.
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#### KV Cache effect
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None; this package neither assembles nor sends a provider request.
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## Known Limitations and Deferred Work
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- **No client half yet** — the in-app browsing dialog that consumes these primitives lands in the next PR of this stack; until then a `-browse` composition hides the picking affordance entirely (ui-workspace's documented empty-hole default) and the listing/creation RPCs go unconsumed.
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- **Windows hidden attribute is not read** — Node dirents do not expose `FILE_ATTRIBUTE_HIDDEN`, so `hidden` means dot-prefixed on every platform until a native probe is worth its cost.
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- **No drive-root enumeration** — on Windows the ancestry stops at the drive root; crossing drives waits for the browser UI's path-entry affordance rather than an enumeration primitive here.
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- **Whole-filesystem scope** — no per-deployment browse-root restriction; `workspace.create` accepts arbitrary paths today, so a root here would be UX scoping, not a boundary — deferred until a deployment needs it.
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