Feature packages now reach these domains through interface types only:
ISession/SessionFace (identity + prompt/cancel/loadOlder + the useSession
snapshot source), ISessions, IWorkspaces, ILayout, IConversation, and the
existing SlashServiceContract now actually mounted on Context.slash. The
concrete services implement their face; wire-pump and assembly entry
points stay on the classes. The provide-channel materialization and
current-projection logic moves into SessionProvideChannel so the
production service and the client test runtime share one implementation.
The workspaces service consumes sessions through the narrow SessionsPort.
The summary blank bit switches from log emptiness to the absence of any
turn/start: standalone plugin events — command lifecycle records,
plan/mode, session titles, goal metadata — no longer surface a fresh
session in lists or steal the New Session view. Running /plan (or /goal)
on a blank session keeps it blank and reusable; the first accepted
prompt's turn clears it. Both carriers share one predicate (summarize +
the host/session-added frame); the cold path keeps its constant false
with the index-read rationale; the client mirror already flips only on
prompt acceptance and needed no change.
Review finding (PR #791): the column carried bare values (no seq), so the
client could not seed its value store without risking a stale list block
outranking newer push frames — and nothing consumed the column at all,
leaving cold titles absent after a restart. SessionSummary.projections is
now the same SessionProjectionsBlock as the history tail (values +
asOfSeq; attached rows cut the live registry, cold rows serve the cache's
identity-checked cachedSnapshot whose asOfSeq is the lowest served-row
watermark). SessionManager.refreshList seeds each row's block into the
per-session projection store via per-key apply — partial-baseline
semantics: an absent key never clears, and higher-seq-wins keeps stale
list blocks beneath push frames and tail baselines — so cold titles
surface in the sidebar without opening a session.
Review follow-ups: the three new notify loops (currentProvideInfo
subscribers, ui-skill lexicon listeners, late-registration controller
setup) now contain per-callback failures so one faulty consumer cannot
starve the rest, abort the list projection pass, or poison the source
roster with no disposer; controller lexicon polling drops a throwing
source with a console record like the candidate path. The ui-slash
README (both languages) now states the late-registration warm and the
subscribeLexicon contract, and the scenario suite drives a typed /name
token gaining its decoration when the roll settles with no further
input.
provideInfo(id)/maybeProvideInfo(id) lost their last external caller
when the renderer host switched to the currentProvideInfo observable;
both become private (tests assert through the public projection). The
reprojection method's name now says what it does — re-derive and
publish on change — and matches the field family it maintains.
A provider roster change under a stable current id rematerialized every
scope's bundle but nothing notified React: SessionProvider resolved the
bundle from a current-id subscription only, so mounted entries kept the
obsolete hook/prop schema until an unrelated re-render. The sessions
service now owns an atomic currentProvide observable fed by both current
writes and roster changes; the renderer host exposes it as
sessions.provide, replacing the current/provideInfo/maybeProvideInfo
trio, and both providers subscribe to it.
Lint: eslint --fix over the merge-crossed projection/command files (arrow
parens, trailing commas, unnecessary assertions), Extract<> replaces the
keyof-map & string intersections no-redundant-type-constituents rejects,
the fold-adapter's merge loop drops its non-null assertions for a
bounds-carrying cursor, one JSDoc line wrapped under max-len (api-catalog
regenerated). Snapshots: the four TUI goldens re-recorded for the merged
event-count shift (the durable command lifecycle adds one event to the
seeded diagnostics log). The headless advanced-toolchain snapshot passes
on CI and fails locally in this sandbox both with and without these
changes (30s child timeout — environment-bound, tracked in the ledger).
commandId crosses three boundaries (session log, wire admission response,
client flow pairing), so per the branded-id rule it becomes
Branded<'CommandId'>, declared in a new pure @deepseek-ai/dsh-commands/brand
outlet (the dsh-llm/brand shape: type + constructor, no Context merges, so
wire and client programs can name it without loading the host plugin). The
event payloads, CommandExecution, and the executor mint carry the brand; the
wire schema gains commandIdSchema as the domain's single brand-cast point
(the approvals precedent); CommandNode and the fixture's fabrication cast
follow type-only.
The consumer-side restated declare-merges retire (user ruling: one home per
projection key): TodoPanel imports the todos merge and TodoItem through
@deepseek-ai/dsh-tool-todo/client, and the manager takes the title merge
through @deepseek-ai/dsh-session-title/client — both pure-type outlets
re-exporting the domain's single-source types.ts, so no host value import or
Context merge enters the client program (type-only edges, exempt from the
plugin value-import ban). Workspace deps and tsconfig references added.
Also aligns the fixture's empty-log tail block with the host convention
(asOfSeq -1 with empty values, block always present on tail requests).
The manager's titleSnapshots Map and its session/title frame consumption
dissolve into resident per-session ProjectionValueStores (create-on-demand,
outliving instantiation — the same role the snapshot map played): a
session/projection frame lands whether or not the Session exists, list rows
read the store's 'title' key, subscribed baselines truncate phantom rows, and
session-removed drops the store. The fixture converts to the host parallel:
a projections block on the tail page (title + todos units), push frames on
unit-advancing events, and a post-subscribe projection baseline replacing the
bespoke title control frame.
TodoDock reads useProjection('todos') (whole list or null pre-first-write;
absent renders nothing) and declare-merges the todos key through the pure-type
outlet — the identical member the tool-todo host unit owns, drift rejected by
any program holding both. The core Session's todos field, its todo/write case,
and the snapshot member retire; the client folds nothing. Session specs for
the retired client fold move to the value-store spec's seq coverage; snapshot
literals across component specs drop the field.
Client-side domain folding is gone (RFC final: the host is the only
computation site): ProjectionCellSpec/fromEvent, ProjectionCellSet, the
SessionsService cell roster, and the Session event-dispatch projection hooks
all delete; Session.projections becomes the generic value store (manager-owned
via SessionOptions so frames landing before instantiation and the history
baseline converge on one row set), and installWindow only seeds the store from
a carried block. The cell specs retire with the machinery — the value store's
own spec owns the seq semantics now.
The push-model client base (session-projection RFC final): ProjectionValueStore
holds key → {value, seq} per session, seeded by the tail page's projections
block and updated by session/projection frames under one rule — higher seq
wins on both paths (stale baseline cannot overwrite a newer frame; replayed
frames cannot regress; an omitting fresh baseline clears = capability absent);
truncate() drops phantom rows past a subscribed durable baseline. Per-key
identity-stable faces (always defined; absence is an undefined snapshot) feed
useProjection; the renderer contract's projections member becomes faceOf.
12 store specs cover both seq directions, absence, truncation, and batching.
The line field is deleted (pre-release, no shim): name and args are
parseCommand's own split — name plus verbatim rawInput with its separator
whitespace — so a consumer (a projection unit folding its own command
records, a rich command card) never re-parses a line. CommandNode mirrors
the split (name/args, both null on a run-less cross-window node); the
generic card rebuilds its display line as /name + args. The connection
fixture logs the same structured payload.
The FoldAdapter folds the log-only command/run + command/done pair (paired
by commandId) into a CommandNode outside the surface fold and merges the
nodes into the flow by seq; cross-window cuts soft-fall like tool pairs (a
done-only window builds the node from the done, a run with no done renders
as still executing). ChatView renders command nodes through the new keyed
'conversation.chat.commandview' hole (key = command name) with
GenericCommandCard — a stripped-down GenericToolCard showing the command
line and outcome text — as the render-site fallback, so any slash command
renders durably with zero registration and survives refresh, other tabs,
and resume via the mux-broadcast events.
The wire type now carries projections?: SessionProjectionsBlock (host-base
landed), so the structural projectionsOf narrowing and its TODO(gui) go away —
Session reads result.value.projections directly at all three installWindow
sites. ProjectionsBaseline stays as the cell framework's structural twin
(React-free layer keeps depending on the type table only) with values typed
Partial<SessionProjectionMap>; the erased walk moves inside resetBaseline
where per-key typing is re-established by schema.parse.
Swap the client runtime's parallel-construction placeholder for
import type from @deepseek-ai/dsh-session-projection/types — the zero-import
outlet, never the package root, whose dsh-agent → dsh-session chain would drag
the host Context.sessions merge into the client program. One type table end to
end (host provider, wire block, client cell, React hook); the spec's test key
now declare-merges the real module. Adds the workspace dep and the tsconfig
project reference.
React half of the session-projection client base: the renderer contract gains
an open-key projections face on SessionMaybeProvideInfo (cellOf(key), distinct
from the static hooks roster), web-react mints projectionHook (per-bundle cache;
per-cell uSES binding via the shared observableHook cache; unresolved keys read
undefined through the absent source so hook order stays constant), standardKit
delivers kit.useProjection, and the runtime merges UseProjection into
SessionStandardProps/SessionMaybeStandardProps (overloads mirror useSession).
3 jsdom specs (kit delivery + live re-render, selector over undefined, faceless
bundle = all absent); existing direct-prop-feed specs gain the one-line stub the
new required seat mandates.
Object layer of the session-projection RFC client base: ProjectionCellSpec/
ProjectionCell/ProjectionCellSet with the single seq-watermark rule (live and
window-replace events share one filter; baseline reset re-seeds value+watermark
unless a newer commit applied; absent key = capability absent), Session
dispatch at appendLive/installWindow (projections block read structurally,
TODO(gui) switch to the interface package), SessionsService.registerProjectionCell
roster (live scopes now + future scopes at mint; disposer sweeps every session),
and the provideInfo projections face (key-addressed bare cell sources).
15 object-layer specs: watermark no-rollback, late-baseline seq rule,
capability absence, schema-failure degrade, duplicate-key throw, resync e2e.
_Kerman
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ZiyaZhang