0be9bf312a
The frame carried `agentPreset` for surfaces that label the session, but nothing consumed it: `noteAgentPreset` ran only in the switching tab's RPC callback, so a second connected client refetched its catalogs while its session row — the header label's source, and the hero chip's no-op input — kept the composition the session had replaced. `SessionManager.handleHostEnvelope` now folds the frame like the other session frames. Re-applying the switching tab's own frame is a no-op: the merge lowers `blank` only and keeps the row's `updatedAt`.
@deepseek-ai/dsh-client-ui-command
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Client command surface (ctx.command): the session-keyed command-directory cache, the / command source with matchSpace/matchEnter adjudication hooks, three-kind dispatch (execute / popupSelect / leadingInput), and the popupSelect registration face for business packages. Contract: the web command surfaces Agent Note.
src/client/contract.ts is the frozen business face: CommandServiceContract.register(name, spec) and decorate(name, spec) are everything a business package consumes; CommandUiSpec{options, onSelect} keeps popup data self-served — the shell component is this package's and business never sees it. A contribution is a client-owned command (a host-name collision fails loud); a decoration hangs a bare-invocation popup on an EXISTING host command — the host keeps its catalog row, argument claim (space / argued enter), and lifecycle logging, and a decorated name with no host row in the session's directory simply never fires. Command kinds derive per dispatch, never per registration: a host descriptor with input is leadingInput, a registered CommandUiSpec is popupSelect, everything else is execute.
CommandDirectory (src/client/directory.ts) is the one wire-derived cache, keyed by session. Ordinary sessions fetch through command.list({sessionId}), and the source's scope-birth warm hook prewarms the session's entry. Catalog-addressed continuable children resolve an empty command directory locally: command.list is Agent-bound, so prewarming it would activate a child merely to view persisted history. Entries are soft-invalidated by the commands/changed typed event (old snapshot serves while the repull flies) and by session/preset-changed for that one session (recomposing an agent registers nothing, so the registry-wide signal never fires for it), hard-invalidated by connection/reset, epoch-guarded so a superseded pull can never overwrite a newer one. matchSpace answers synchronously from this cache only; matchEnter strong-waits it on the SubmitAttempt signal and rejects on warmup failure — a / line is never silently downgraded to a plain prompt.
Menu queries fuzzy-match ordered, case-insensitive subsequences of command names. Prefixes rank first; separator boundaries, adjacent characters, and shorter gaps rank the remaining matches, with directory and contribution order breaking ties. This affects discovery only: space and Enter still require an exact command name. Rationale: Web slash-command fuzzy discovery.
PopupSelectController (src/client/popup.ts) is the headless shell state: PopupSelectView self-registers into conversation.input.overlay (the SlotMap key is ui-conversation's; this package pulls the declaration in with a type-only import — no runtime edge). The shell is a transient layer holding focus while open; token-segment consumption after onSelect runs both branches through consumeTokenSegment (menu-path span CAS, enter-path bare-token equality) against the draft face the wiring layer binds via bindDraft.
The /client export surface is the plugin body (apply/inject), CommandService, the directory and popup classes with their state types, and the frozen contract types; the shell component itself is internal to the overlay registration.
Model Experience
Indirectly, through the host command.execute RPC this package's dispatch and claim.submit paths trigger: a matched command's handler mutates host domain state that other packages project into the next request (the /plan handler flips plan mode, whose owning package injects its plan:policy system-prompt section), while the command line itself, the detached result, and every menu/notice rendering stay client-side and never enter the session log.
KV Cache effect
None directly; this package neither assembles nor sends a provider request. Command handlers it triggers may change what the owning host packages contribute to the next request's system prompt (a section appearing or disappearing replaces earlier request tokens and invalidates the provider prefix from that point), but that effect is owned and documented by each command's host package.
Known Limitations and Deferred Work
- Detached-result notices fall back to the console off-session — the fire-and-forget paths route results to the triggering session's composer via
SessionInput.notify; after session teardown the console line is the only remaining surface.