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deepseek-harness/packages/host/apiproxy/src/api/sessions.ts

98 lines
4.3 KiB
TypeScript

/**
* sessions domain contract. Method signatures are the source of truth:
* unary methods take the RpcRequest<P> narrow form and the impl echoes rpcId; everything
* else references RequestPayload<'session.*'> / ResponseValue<'session.*'>.
*/
import type { ContentBlock } from '@deepseek-ai/dsh-llm/types'
import type { SessionEvent, SessionId } from '@deepseek-ai/dsh-session/types'
import type { RpcId, RpcRequest, RpcResponse } from './rpc.ts'
import type { ToolEventView } from './events.ts'
declare module '@deepseek-ai/dsh-llm' {
interface MessageSourceMap {
/**
* The prompt's rpcId is passed through MessageSource into the `user/message` event
* (the client uses it to reconcile the optimistically
* echoed provisional message with the event stream). kind stays `'user'` — the model face
* carries no transport vocabulary; rpcId is an extra durable-JSON field passed back to the client with the event.
*/
'user-rpc': { kind: 'user'; rpcId: RpcId }
}
}
/**
* One history page entry: the raw event plus the optional host-computed render
* intent (same semantics as the mux frame's `view` slot — a pagination-time
* derivation, never persisted).
*/
export interface HistoryEntry {
event: SessionEvent
view?: ToolEventView
}
/** Session list entry (v1 builds no index: list does readdir+stat). */
export interface SessionSummary {
sessionId: SessionId
/** Persisted file mtime. */
updatedAt: number
/** Status of the attached agent; always false for cold (unattached) sessions. */
running: boolean
/** fork/spawn lineage (session.header.parentSession passthrough); absent for root sessions. */
parentSessionId?: SessionId
/** Session working directory (header.cwd passthrough); absent when unrecorded. */
cwd?: string
}
/**
* Plan collaboration state exposed to clients. `active` is the logged state
* shaping the current request; `pending`, when present, is the user's
* next-boundary selection and differs from `active`.
*/
export interface PlanModeState {
active: boolean
pending?: boolean
}
/** Session-domain unary methods (the map keys session.* of RpcMethodMap). */
export interface SessionsApi {
/** Lists persisted sessions (updatedAt descending). v1 returns everything; cursor is a reserved seat, unimplemented. */
list(request: RpcRequest<{ cursor?: string }>): Promise<RpcResponse<{ items: SessionSummary[] }>>
/** Creates a new session (and its agent, idle and standing by). */
create(request: RpcRequest<{ cwd?: string }>): Promise<RpcResponse<{ sessionId: SessionId }>>
/**
* Reads a window of history events; page boundaries align to message boundaries: one page =
* all raw events owned by a whole number of messages (including their chunk / tool events),
* never cut mid-message. The tail page (beforeSeq absent) additionally carries the in-flight
* partial — chunk events already emitted for the last unfinalized message.
* Each entry pairs the raw SessionEvent with the host-computed view (tool events whose
* presenter produced one, evaluated against the registry at pagination time); the client
* rebuilds the surface from the events with the shared fold.
*/
history(request: RpcRequest<{ sessionId: SessionId; beforeSeq?: number; maxMessages?: number }>):
Promise<RpcResponse<{ events: HistoryEntry[]; hasMore: boolean }>>
/** Sends a message. content is core's ContentBlock[] verbatim; mode maps 1:1 — queue→send, steer→steer. */
prompt(request: RpcRequest<{ sessionId: SessionId; mode: 'queue' | 'steer'; content: ContentBlock[] }>):
Promise<RpcResponse<{ accepted: true }>>
/** Stops: clears both FIFOs + aborts the current step (1:1 with agent.cancel). */
cancel(request: RpcRequest<{ sessionId: SessionId }>): Promise<RpcResponse<{ accepted: true }>>
/**
* Reads plan collaboration state. `null` means the host did not compose the
* optional plan-mode service; it is distinct from inactive state.
*/
planMode(request: RpcRequest<{ sessionId: SessionId }>): Promise<RpcResponse<PlanModeState | null>>
/**
* Selects plan collaboration state for the next model-request boundary.
* The returned state exposes the still-committed value and pending target;
* `null` means plan mode is unavailable on this host.
*/
setPlanMode(request: RpcRequest<{ sessionId: SessionId; active: boolean }>):
Promise<RpcResponse<PlanModeState | null>>
}