Files
deepseek-harness/packages/client
Yichen Jiang d099a24cb1 fix(web): resume the preset the log records, and serialize the switch
Six review findings on the select surface, all reachable from the wire:

**Resume read the header, not the log.** The switch was recorded as
`agent-preset/selected` and every projection resolved from it, but `agentFor`
still composed from `inspected.meta.agentPreset` — the value written once at
creation. A blank session that switched and then ran turns came back after a
restart under the ORIGINAL preset, restoring that history under the tool set it
was not produced with, which is the mismatch this feature exists to prevent.
`inspected` already carries the events.

**Cold summaries dropped the preset entirely.** `summarizeCold` hand-copied
three header fields and omitted the fourth, so a restored session reported no
preset and the picker showed the deployment default. It now uses the same
projection the attached path does.

**`select` had no gate.** Two concurrent selects both passed the blank check;
the second `unmountPresetFor` then found no record, because the first had
already removed it, and both mounts installed into one agent layer. Selects on
one session now queue, and the blank check is re-read inside the queue. This is
not turn admission — a `session.prompt` racing a switch is the agent loop's to
reserve — but it closes the select-versus-select tear-down.

**A same-id restore was skipped.** The roster is a live directory, so "the same
inputs that worked a moment ago" does not hold: a changed file is exactly how a
same-id reselect fails, and skipping the restore left the agent with no
composition at all.

**`writable` was dead state**, initialized true and never set, so the row could
never disable. It now carries `settings.describe`'s bit — a browser that may
not write settings sees the current default and no control, rather than one
whose write answers `settings-not-exposed`.

**`list` was documented as id-ordered.** It is root-precedence order with each
root's own presets sorted, first root to supply an id winning.
2026-08-07 11:45:10 +08:00
..
2026-08-06 21:14:59 +08:00

client/ — web-GUI browser half

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The browser side of the dsh web GUI: shell boot, browser-host communication, shared UI services, and feature plugins. Authoring rules live in AGENTS.md; the host half is host/. All except test-runtime are product packages named @deepseek-ai/dsh-client-<name>.

Package Purpose
web/ Boots the browser shell from the client entry graph.
modules/ Loads browser-side client modules.
web-react/ Connects the shell runtime to React rendering.
connection/ Maintains browser-host RPC communication and event delivery.
runtime/ Provides shared client services for sessions, workspaces, and UI composition.
hmr/ Refreshes client plugins during development.
locale/ Provides localization preferences and message dictionaries.
schema-form/ Provides schema-backed draft handling for settings editors.
test-runtime/ Provides shared repository test support for client feature packages.
ui-slots/ Defines how UI features register and compose extension slots.
ui-theme/ Applies the selected color theme.
ui-primitives/ Provides shared React controls, icons, and content renderers.
ui-layout/ Arranges the main application regions.
ui-sidebar/ Presents workspace and session navigation.
ui-workspace/ Provides workspace selection and creation surfaces.
ui-conversation/ Presents the active conversation and its input surface.
ui-goal/ Presents and manages the current goal.
ui-trajectory/ Presents alternate views of agent activity.
ui-command/ Provides session-aware command discovery and dispatch.
ui-slash/ Coordinates inline command and reference suggestions.
ui-skill/ Adds skill references to inline suggestions.
ui-subagent/ Provides subagent navigation, child transcript states, and inline references.
ui-model/ Provides model selection in conversation surfaces.
ui-permission/ Configures default permissions and switches the current session's access.
ui-plan/ Presents active plan-mode status and its exit control.
ui-question/ Presents interactive questions requested by the agent.
ui-settings/ Hosts the settings interface and its extension areas.
ui-settings-general/ Provides the general settings section.
ui-models/ Provides model-provider configuration and DeepSeek onboarding.

Each child reference owns its contract and detailed behavior. The slot system standard and web client architecture note own the cross-package composition and loading decisions.