Merge remote-tracking branch 'origin/master' into worktree/web-multimodal-image-input
# Conflicts: # apps/cli/README.md # apps/cli/src/web.ts # apps/web/tests/smoke-fixture.e2e.ts # docs/architecture.i18n.yaml # docs/module-graph.md # examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/stdout.expected.jsonl # packages/client/connection/src/client/api.ts # packages/client/connection/src/client/fixture.ts # packages/client/runtime/README.md # packages/client/runtime/src/client/index.ts # packages/client/runtime/src/client/sessions/conversation.ts # packages/client/runtime/src/client/sessions/service.ts # packages/client/runtime/src/client/sessions/session.ts # packages/client/ui-conversation/src/client/apply.ts # packages/client/ui-conversation/src/client/contract/slots.ts # packages/client/ui-conversation/src/client/index.ts # packages/client/ui-conversation/src/client/service.ts # packages/client/ui-conversation/src/client/skeleton/ConversationRoot.tsx # packages/client/ui-conversation/src/client/skeleton/EmptyState.tsx # packages/client/ui-conversation/src/client/skeleton/InputBar.tsx # packages/client/ui-conversation/src/client/stores.ts # packages/client/ui-conversation/tests/apply-inject.spec.tsx # packages/client/ui-conversation/tests/service-orchestration.spec.ts # packages/client/ui-conversation/tests/skeleton-branches.spec.tsx # packages/client/ui-conversation/tests/skeleton.spec.tsx # packages/cordis/tool-cordis/src/api-catalog.ts # packages/host/apiproxy/package.json # packages/host/apiproxy/src/api-proxy.ts # packages/host/apiproxy/src/api/sessions.schema.ts # packages/host/runtime/package.json # packages/host/runtime/src/boot.ts # packages/host/runtime/tests/host-runtime.spec.ts # packages/host/runtime/tsconfig.json # packages/host/webserver/README.md # packages/host/webserver/src/index.ts # packages/host/webserver/tests/webserver.spec.ts # packages/llm/llm-pi-ai/tests/convert.spec.ts # packages/ui/acp/src/codec.ts # packages/ui/acp/tests/codec.spec.ts # pnpm-lock.yaml
This commit is contained in:
Yichen Jiang
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@@ -0,0 +1,981 @@
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/**
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* Host-side ApiProxy implementation. Signature discipline: unary takes the
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* narrow RpcRequest<P> and echoes request.rpcId on the RpcResponse<T>.
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*/
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import { randomUUID } from 'node:crypto'
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import { mkdir, stat } from 'node:fs/promises'
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import { join } from 'node:path'
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import type { Context } from 'cordis'
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import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent'
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import { AttachmentError } from '@deepseek-ai/dsh-attachment-local'
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import type { ImageAttachmentRef } from '@deepseek-ai/dsh-attachment-local'
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import type { ContentBlock, MessageSource } from '@deepseek-ai/dsh-llm'
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import type { JsonValue, Session, SessionEvent, SessionHeader, SessionId } from '@deepseek-ai/dsh-session'
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import type { SessionPersistence } from '@deepseek-ai/dsh-session-persistence'
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import { foldSessionTitle } from '@deepseek-ai/dsh-session-title'
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import type { Workspace, WorkspaceRecord } from '@deepseek-ai/dsh-workspace'
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import {
|
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workspaceDomainState, workspaceRecord, WorkspaceId as brandWorkspaceId, WorkspaceNameConflictError,
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} from '@deepseek-ai/dsh-workspace'
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// Type-only: brings the `ctx.tools` Context merge into this program (viewFor reads presenters).
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import type {} from '@deepseek-ai/dsh-tools'
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import type {
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ApiProxy, HistoryEntry, HostFrame, MuxFrame, PromptContentPart, QuestionResponsePayload, SessionSummary, ToolEventView,
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WorkspaceId, WorkspaceView,
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} from './api/index.ts'
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import { questionResponsePayloadSchema } from './api/questions.schema.ts'
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import type { ClientResponse, RpcError, RpcReceipt, RpcRequest, RpcResponse } from './api/rpc.ts'
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import { RpcId } from './api/rpc.ts'
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import type {
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AskUserQuestionAnswer, AskUserQuestionItem, AskUserQuestionRequest,
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} from '@deepseek-ai/dsh-user-interaction'
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import { UserInteractionError } from '@deepseek-ai/dsh-user-interaction'
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/** Page size when history is called without maxMessages. */
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const DEFAULT_MAX_MESSAGES = 50
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/** Surface message event types (the pagination counting unit). */
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const MESSAGE_TYPES = new Set(['user/message', 'assistant/message', 'steering/message'])
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function decodeBase64(data: string): Uint8Array {
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if (data.length === 0 || data.length % 4 !== 0 || !/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/.test(data)) {
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throw new AttachmentError('Image upload is not canonical base64.', 'INVALID_IMAGE_BASE64')
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}
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const decoded = Buffer.from(data, 'base64')
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if (decoded.toString('base64') !== data) {
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throw new AttachmentError('Image upload is not canonical base64.', 'INVALID_IMAGE_BASE64')
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}
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return new Uint8Array(decoded)
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}
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async function durablePromptContent(ctx: Context, content: readonly PromptContentPart[]): Promise<ContentBlock[]> {
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const limits = ctx.attachments.imageLimits
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const prepared = content.map(part => part.type === 'text'
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? part
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: { part, data: decodeBase64(part.data) })
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const images = prepared.filter((part): part is Extract<typeof part, { data: Uint8Array }> => 'data' in part)
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if (images.length > limits.maxImagesPerMessage) {
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throw new AttachmentError('Prompt exceeds the configured image-count limit.', 'TOO_MANY_IMAGES')
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}
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const totalBytes = images.reduce((sum, image) => sum + image.data.byteLength, 0)
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if (totalBytes > limits.maxMessageImageBytes) {
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throw new AttachmentError('Prompt exceeds the configured aggregate image-byte limit.', 'IMAGES_TOO_LARGE')
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}
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// Validate the complete batch before persisting any member: the store has no
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// garbage collection, so one malformed image must not leave the batch's
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// valid members as published objects no message event will ever reference.
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for (const image of images) {
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ctx.attachments.validateImage({
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data: image.data,
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mediaType: image.part.mediaType,
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...image.part.name === undefined ? {} : { name: image.part.name },
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})
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}
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return Promise.all(prepared.map(async (item): Promise<ContentBlock> => {
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if (!('data' in item)) return { type: 'text', text: item.text }
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const attachment = await ctx.attachments.saveImage({
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data: item.data,
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mediaType: item.part.mediaType,
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...item.part.name === undefined ? {} : { name: item.part.name },
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})
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return { type: 'image', attachment }
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}))
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}
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function imageInContent(content: unknown, attachmentId: string): ImageAttachmentRef | undefined {
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if (!Array.isArray(content)) return undefined
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for (const value of content) {
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if (typeof value !== 'object' || value === null || Array.isArray(value)) continue
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const block = value as { type?: unknown; attachment?: unknown; content?: unknown }
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if (block.type === 'image' && typeof block.attachment === 'object' && block.attachment !== null) {
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const ref = block.attachment as ImageAttachmentRef
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if (String(ref.attachmentId) === attachmentId) return ref
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}
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if (block.type === 'tool-result') {
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const nested = imageInContent(block.content, attachmentId)
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if (nested !== undefined) return nested
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}
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}
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return undefined
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}
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function referencedImage(events: readonly SessionEvent[], attachmentId: string): ImageAttachmentRef | undefined {
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for (const event of events) {
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const data = event.data as { content?: unknown; chunk?: { type?: unknown; block?: unknown } }
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const direct = imageInContent(data.content, attachmentId)
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if (direct !== undefined) return direct
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if (event.type === 'assistant/chunk' && data.chunk?.type === 'block-end') {
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const streamed = imageInContent([data.chunk.block], attachmentId)
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if (streamed !== undefined) return streamed
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}
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}
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return undefined
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}
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/**
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* Message-boundary pagination: count maxMessages surface messages backwards from
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* the window tail; the cut is the starting seq of the oldest message group
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* (chunks group via sourceEventSeqs — never cut mid-message). The tail page
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* naturally includes the in-progress partial.
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*/
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function paginate(
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events: readonly SessionEvent[],
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beforeSeq: number | undefined,
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maxMessages: number,
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): { events: SessionEvent[]; hasMore: boolean } {
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const window = beforeSeq === undefined ? [...events] : events.filter(event => event.seq < beforeSeq)
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let count = 0
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let cut = 0
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for (let i = window.length - 1; i >= 0; i--) {
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const event = window[i] as SessionEvent
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if (!MESSAGE_TYPES.has(event.type)) continue
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count++
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const sources = (event as { sourceEventSeqs?: number[] }).sourceEventSeqs
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const groupStart = sources !== undefined && sources.length > 0 ? Math.min(event.seq, ...sources) : event.seq
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if (count >= maxMessages) {
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cut = groupStart
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break
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}
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}
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const page = window.filter(event => event.seq >= cut)
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return { events: page, hasMore: cut > 0 }
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}
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/** Wrap an ok result echoing the request's rpcId. */
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function ok<T>(request: RpcRequest<unknown>, value: T): RpcResponse<T> {
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return { rpcId: request.rpcId, result: { ok: true, value } }
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}
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||||
|
||||
/** Wrap an error result echoing the request's rpcId. */
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function err<T>(request: RpcRequest<unknown>, error: RpcError): RpcResponse<T> {
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return { rpcId: request.rpcId, result: { ok: false, error } }
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}
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||||
|
||||
/** Simple async queue: core callbacks push, the AsyncIterable pulls; abort/return cleans up. */
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class FrameQueue<F> {
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private buffer: F[] = []
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private waiter: (() => void) | undefined
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private done = false
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|
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push(item: F): void {
|
||||
if (this.done) return
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||||
this.buffer.push(item)
|
||||
this.waiter?.()
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||||
}
|
||||
|
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end(): void {
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this.done = true
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this.waiter?.()
|
||||
}
|
||||
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||||
async *iterate(signal: AbortSignal, cleanup: () => void): AsyncGenerator<F> {
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const onAbort = (): void => { this.end() }
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signal.addEventListener('abort', onAbort, { once: true })
|
||||
try {
|
||||
while (true) {
|
||||
while (this.buffer.length > 0) yield this.buffer.shift() as F
|
||||
if (this.done || signal.aborted) return
|
||||
await new Promise<void>((resolve) => { this.waiter = resolve })
|
||||
this.waiter = undefined
|
||||
}
|
||||
} finally {
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||||
signal.removeEventListener('abort', onAbort)
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||||
cleanup()
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||||
}
|
||||
}
|
||||
}
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||||
|
||||
/**
|
||||
* Server-side frame mint: pure pushes get a fresh rpcId per frame (stable ids
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* for answerable frames belong to the approval/question registry, absent in
|
||||
* this minimal version).
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||||
*/
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||||
function frame<F>(payload: F): RpcRequest<F> {
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||||
return { rpcId: RpcId(randomUUID()), payload }
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||||
}
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||||
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||||
type SessionTitleFrame = Extract<MuxFrame, { type: 'session/title' }>
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||||
|
||||
/** Project the latest durable title without exposing title-generation policy. */
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function titleFrame(session: Session): SessionTitleFrame | undefined {
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const title = foldSessionTitle(session.events)
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||||
if (title === undefined) return undefined
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||||
return {
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||||
type: 'session/title',
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||||
sessionId: session.id,
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||||
title: title.title,
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||||
eventSeq: title.eventSeq,
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||||
updatedAt: title.updatedAt,
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||||
}
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||||
}
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||||
|
||||
/** Queue the subscription baseline followed by its optional title snapshot. */
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function subscribeSession(queue: FrameQueue<RpcRequest<MuxFrame>>, session: Session): void {
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queue.push(frame({ type: 'session/subscribed', sessionId: session.id, lastSeq: session.seq - 1 }))
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const title = titleFrame(session)
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if (title !== undefined) queue.push(frame(title))
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||||
}
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|
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/** SessionSummary projection for attached (in-memory) sessions. */
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function summarize(session: Session, running: boolean): SessionSummary {
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return {
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sessionId: session.id,
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updatedAt: session.events.at(-1)?.time ?? session.header.createdAt,
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running,
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...session.header.parentSession === undefined ? {} : { parentSessionId: session.header.parentSession },
|
||||
...session.header.cwd === undefined ? {} : { cwd: session.header.cwd },
|
||||
}
|
||||
}
|
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|
||||
/**
|
||||
* SessionSummary projection for cold (persisted, unattached) sessions.
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* updatedAt is the log file's mtime; backends without a per-session file
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* (locate() undefined) fall back to the header's createdAt.
|
||||
*/
|
||||
async function summarizeCold(persistence: SessionPersistence, meta: SessionHeader): Promise<SessionSummary> {
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||||
let updatedAt = meta.createdAt
|
||||
const location = persistence.locate(meta)
|
||||
if (location !== undefined) {
|
||||
try {
|
||||
updatedAt = (await stat(location.path)).mtimeMs
|
||||
} catch {
|
||||
// The log vanished between list() and stat() (concurrent cleanup); createdAt stands in.
|
||||
}
|
||||
}
|
||||
return {
|
||||
sessionId: meta.id,
|
||||
updatedAt,
|
||||
running: false,
|
||||
...meta.parentSession === undefined ? {} : { parentSessionId: meta.parentSession },
|
||||
/* v8 ignore next -- the empty arm needs a cwd-less meta, but list()
|
||||
filters those out (legacy logs are not served); the conditional mirrors
|
||||
summarize() shape. */
|
||||
...meta.cwd === undefined ? {} : { cwd: meta.cwd },
|
||||
}
|
||||
}
|
||||
|
||||
/** Resolved Host routing and project-directory defaults consumed by the API implementation. */
|
||||
export interface ApiProxyDefaults {
|
||||
provider: string
|
||||
model: string
|
||||
/** Default project directory for new sessions whose create request carries no cwd. */
|
||||
cwd: string
|
||||
/** Parent directory for name-created workspaces. */
|
||||
workspaceRoot: string
|
||||
}
|
||||
|
||||
/** The tool/call payload fields the presenter path reads. */
|
||||
interface ToolCallData { callId: string; name: string; arguments: string }
|
||||
/** The tool/result payload fields the presenter path reads. */
|
||||
interface ToolResultData { callId: string; content: ContentBlock[]; isError: boolean; meta?: JsonValue }
|
||||
|
||||
/** One host-owned question wait, addressed by the stable server-request id. */
|
||||
interface PendingQuestion {
|
||||
rpcId: RpcId
|
||||
sessionId: SessionId
|
||||
questions: AskUserQuestionItem[]
|
||||
resolve: (answer: AskUserQuestionAnswer) => void
|
||||
reject: (error: UserInteractionError) => void
|
||||
signal?: AbortSignal
|
||||
onAbort?: () => void
|
||||
}
|
||||
|
||||
/** Validate one answer batch against the exact question request it resolves. */
|
||||
function matchesQuestions(payload: QuestionResponsePayload, pending: PendingQuestion): boolean {
|
||||
if (payload.sessionId !== pending.sessionId) return false
|
||||
const answers = payload.answer.answers
|
||||
if (answers.length !== pending.questions.length) return false
|
||||
return answers.every((answer, index) => {
|
||||
const question = pending.questions[index] as AskUserQuestionItem
|
||||
if (answer.id !== question.id) return false
|
||||
if (new Set(answer.selected).size !== answer.selected.length) return false
|
||||
const custom = answer.custom?.trim()
|
||||
if (custom !== undefined && custom === '') return false
|
||||
if (custom !== undefined && answer.selected.length > 0) return false
|
||||
if (question.multiSelect !== true && answer.selected.length > 1) return false
|
||||
const labels = new Set(question.options?.map(option => option.label) ?? [])
|
||||
return answer.selected.every(label => labels.has(label))
|
||||
})
|
||||
}
|
||||
|
||||
/**
|
||||
* Compute the render intent for a tool/call or tool/result event through the
|
||||
* presenters registered at this moment; every other event type gets none. A
|
||||
* result's presenter needs its call's parsed args — `argsFor` supplies them
|
||||
* (live: the per-session call table; history: an in-page backscan), returning
|
||||
* undefined when the pairing is unavailable (e.g. the call fell off the page),
|
||||
* which soft-falls to no view. Presenter or JSON.parse throws also soft-fall:
|
||||
* the client's documented default (generic JSON card) covers every miss.
|
||||
*/
|
||||
function viewFor(ctx: Context, event: SessionEvent, argsFor: (callId: string) => unknown): ToolEventView | undefined {
|
||||
try {
|
||||
if (event.type === 'tool/call') {
|
||||
const { name, arguments: raw } = event.data as ToolCallData
|
||||
const view = ctx.tools.get(name)?.presentCall?.(JSON.parse(raw))
|
||||
return view === undefined ? undefined : { for: 'call', view }
|
||||
}
|
||||
if (event.type === 'tool/result') {
|
||||
const { callId, content, isError, meta } = event.data as ToolResultData
|
||||
const call = argsFor(callId) as { name: string; args: unknown } | undefined
|
||||
if (call === undefined) return undefined
|
||||
const view = ctx.tools.get(call.name)?.presentResult?.(call.args, { content, isError, ...meta === undefined ? {} : { meta } })
|
||||
return view === undefined ? undefined : { for: 'result', view }
|
||||
}
|
||||
} catch (error: unknown) {
|
||||
// A throwing presenter (or unparseable arguments) must not break delivery;
|
||||
// the event still ships, just without a view.
|
||||
console.error(`api-proxy: presenter failed for ${event.type}, falling back to generic: ${String(error)}`)
|
||||
}
|
||||
return undefined
|
||||
}
|
||||
|
||||
/**
|
||||
* Resolve a tool/result's call pairing by scanning a window of events backwards
|
||||
* for the matching tool/call. Used by the history path (the page is the
|
||||
* window — a cross-page pairing soft-falls to no view) and by live-path table
|
||||
* misses after a reconnect-eviction.
|
||||
*/
|
||||
function backscanArgs(events: readonly SessionEvent[], callId: string): { name: string; args: unknown } | undefined {
|
||||
for (let i = events.length - 1; i >= 0; i--) {
|
||||
const event = events[i] as SessionEvent
|
||||
if (event.type !== 'tool/call') continue
|
||||
const data = event.data as ToolCallData
|
||||
if (data.callId !== callId) continue
|
||||
try {
|
||||
return { name: data.name, args: JSON.parse(data.arguments) }
|
||||
} catch {
|
||||
// Unparseable stored arguments: same soft-fall as a live parse failure.
|
||||
return undefined
|
||||
}
|
||||
}
|
||||
return undefined
|
||||
}
|
||||
|
||||
/**
|
||||
* Thrown by the cold-resume path when the id names no servable session
|
||||
* (absent from the store, or a pre-project legacy log without a cwd).
|
||||
*/
|
||||
class SessionNotFound extends Error {}
|
||||
|
||||
/** Requested identity already belongs to a session with another project cwd. */
|
||||
class SessionCwdConflict extends Error {
|
||||
constructor(
|
||||
readonly sessionId: SessionId,
|
||||
readonly requestedCwd: string,
|
||||
readonly existingCwd: string | undefined,
|
||||
) {
|
||||
super(
|
||||
`session "${sessionId}" already exists with cwd ${JSON.stringify(existingCwd)}; `
|
||||
+ `requested ${JSON.stringify(requestedCwd)}`,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
/** Host failed before the registry could adopt a name-created directory. */
|
||||
class WorkspaceDirectoryCreationError extends Error {}
|
||||
|
||||
/** Wire projection of one workspace entity (the workspace.* value row). */
|
||||
function workspaceView(workspace: Workspace): WorkspaceView {
|
||||
return {
|
||||
workspaceId: workspace.id,
|
||||
path: workspace.path,
|
||||
title: workspace.title,
|
||||
sessionIds: [...workspace.sessionIds],
|
||||
createdAt: workspace.createdAt,
|
||||
updatedAt: workspace.updatedAt,
|
||||
}
|
||||
}
|
||||
|
||||
/** Wire projection of the durable record carried by `domain/changed`. */
|
||||
function changedWorkspaceView(workspaceId: string, value: unknown): WorkspaceView {
|
||||
const record: WorkspaceRecord = workspaceRecord.parse(value)
|
||||
return {
|
||||
workspaceId: workspaceId as WorkspaceId,
|
||||
path: record.path,
|
||||
title: record.title,
|
||||
sessionIds: [...record.sessionIds],
|
||||
createdAt: record.createdAt,
|
||||
updatedAt: record.updatedAt,
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Implement ApiProxy over a composed host context.
|
||||
* @param ctx - a context with the Host spine and Workspace registry mounted.
|
||||
* @param defaults - host routing and project-directory defaults.
|
||||
* @returns the ApiProxy implementation.
|
||||
*/
|
||||
export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiProxy {
|
||||
const agentOptions = { provider: defaults.provider, model: defaults.model }
|
||||
/** Implicit resume of cold sessions, deduplicating concurrent calls (follows the jsonrpc sessionCreations precedent). */
|
||||
const resumes = new Map<SessionId, Promise<Agent>>()
|
||||
/** Client-chosen identity creation/resume, deduplicated across concurrent retries. */
|
||||
const sessionCreations = new Map<SessionId, Promise<Agent>>()
|
||||
/** Serializes path ownership checks with record creation across spellings. */
|
||||
let workspaceCreationChain = Promise.resolve()
|
||||
const pendingQuestions = new Map<RpcId, PendingQuestion>()
|
||||
const muxQueues = new Set<FrameQueue<RpcRequest<MuxFrame>>>()
|
||||
|
||||
/** Send one transient frame to every connected mux consumer. */
|
||||
function broadcast(payload: MuxFrame): void {
|
||||
const envelope = frame(payload)
|
||||
for (const queue of muxQueues) queue.push(envelope)
|
||||
}
|
||||
|
||||
/** Remove a wait before settling it: synchronous deletion makes the first claimant win. */
|
||||
function claimQuestion(pending: PendingQuestion, outcome: 'answered' | 'cancelled'): void {
|
||||
pendingQuestions.delete(pending.rpcId)
|
||||
if (pending.signal !== undefined && pending.onAbort !== undefined) {
|
||||
pending.signal.removeEventListener('abort', pending.onAbort)
|
||||
}
|
||||
broadcast({
|
||||
type: 'question/resolved', sessionId: pending.sessionId,
|
||||
questionRpcId: pending.rpcId, outcome,
|
||||
})
|
||||
}
|
||||
|
||||
const disposeProvider = ctx.userInteraction.registerProvider({
|
||||
ask(request: AskUserQuestionRequest): Promise<AskUserQuestionAnswer> {
|
||||
const sessionId = request.agent?.id
|
||||
if (sessionId === undefined) {
|
||||
return Promise.reject(new UserInteractionError(
|
||||
'web user interaction requires an agent-owned session', 'ASK_MISSING_AGENT'))
|
||||
}
|
||||
return new Promise<AskUserQuestionAnswer>((resolve, reject) => {
|
||||
const rpcId = RpcId(randomUUID())
|
||||
const pending: PendingQuestion = {
|
||||
rpcId, sessionId, questions: request.questions, resolve, reject,
|
||||
...(request.signal === undefined ? {} : { signal: request.signal }),
|
||||
}
|
||||
const onAbort = (): void => {
|
||||
claimQuestion(pending, 'cancelled')
|
||||
reject(new UserInteractionError(
|
||||
'ask_user_question was aborted before the user answered', 'ASK_ABORTED'))
|
||||
}
|
||||
pending.onAbort = onAbort
|
||||
pendingQuestions.set(rpcId, pending)
|
||||
request.signal?.addEventListener('abort', onAbort, { once: true })
|
||||
const envelope: RpcRequest<MuxFrame> = {
|
||||
rpcId,
|
||||
payload: { type: 'question/requested', sessionId, questions: request.questions },
|
||||
}
|
||||
for (const queue of muxQueues) queue.push(envelope)
|
||||
})
|
||||
},
|
||||
})
|
||||
ctx.effect(() => () => {
|
||||
disposeProvider()
|
||||
for (const pending of [...pendingQuestions.values()]) {
|
||||
claimQuestion(pending, 'cancelled')
|
||||
pending.reject(new UserInteractionError(
|
||||
'web user-interaction provider was disposed', 'ASK_ABORTED'))
|
||||
}
|
||||
}, 'api-proxy: user-interaction provider')
|
||||
|
||||
/**
|
||||
* Gate the cold path on the store: an id absent from it, or naming a legacy
|
||||
* log without a cwd (pre-release stance: not served, no compatibility), is
|
||||
* not-found before any resume is attempted. With the gate passed, a later
|
||||
* resume failure is genuinely internal. No persistence configured skips the
|
||||
* gate — resume itself then fails loud with its own diagnostic.
|
||||
*/
|
||||
async function assertServable(sessionId: SessionId): Promise<void> {
|
||||
const persistence = ctx.get('sessionPersistence')
|
||||
if (persistence === undefined) return
|
||||
const meta = (await persistence.list()).find(m => m.id === sessionId)
|
||||
if (meta === undefined || meta.cwd === undefined) throw new SessionNotFound(`session "${sessionId}" not found`)
|
||||
}
|
||||
|
||||
async function agentFor(sessionId: SessionId): Promise<{ agent: Agent } | { error: RpcError }> {
|
||||
const live = ctx.agents.get(sessionId)
|
||||
if (live !== undefined) return { agent: live }
|
||||
let resume = resumes.get(sessionId)
|
||||
if (resume === undefined) {
|
||||
resume = (async () => {
|
||||
try {
|
||||
await assertServable(sessionId)
|
||||
const handle = await ctx.agents.resume({ resumeSessionId: sessionId, agentOptions })
|
||||
return handle.agent
|
||||
} finally {
|
||||
resumes.delete(sessionId)
|
||||
}
|
||||
})()
|
||||
resumes.set(sessionId, resume)
|
||||
}
|
||||
try {
|
||||
return { agent: await resume }
|
||||
} catch (error: unknown) {
|
||||
if (error instanceof SessionNotFound) {
|
||||
return { error: { code: 'session-not-found', message: error.message, details: { sessionId } } }
|
||||
}
|
||||
// The internal details slot is contractually {}; the reason rides the message.
|
||||
return { error: { code: 'internal', message: `resume failed for session "${sessionId}": ${String(error)}`, details: {} } }
|
||||
}
|
||||
}
|
||||
|
||||
/** Resolve one requested identity to a live agent, creating or resuming it once. */
|
||||
async function ensureSession(sessionId: SessionId, cwd: string, checkPersistedIdentity: boolean): Promise<Agent> {
|
||||
let creation = sessionCreations.get(sessionId)
|
||||
if (creation === undefined) {
|
||||
creation = (async () => {
|
||||
const live = ctx.agents.get(sessionId)
|
||||
if (live !== undefined) return live
|
||||
|
||||
const persistence = checkPersistedIdentity ? ctx.get('sessionPersistence') : undefined
|
||||
const stored = persistence === undefined
|
||||
? undefined
|
||||
: (await persistence.list()).find(header => header.id === sessionId)
|
||||
if (stored !== undefined) {
|
||||
if (stored.cwd !== cwd) {
|
||||
throw new SessionCwdConflict(sessionId, cwd, stored.cwd)
|
||||
}
|
||||
return (await ctx.agents.resume({ resumeSessionId: sessionId, agentOptions })).agent
|
||||
}
|
||||
|
||||
try {
|
||||
await mkdir(cwd, { recursive: true })
|
||||
} catch (error: unknown) {
|
||||
throw new Error(`failed to ensure project directory "${cwd}": ${String(error)}`, { cause: error })
|
||||
}
|
||||
return (await ctx.agents.create({ sessionId, agentOptions, meta: { cwd } })).agent
|
||||
})().catch((error: unknown) => {
|
||||
// Another Host entry path may have published the same identity while
|
||||
// this operation crossed an asynchronous persistence/filesystem step.
|
||||
const live = ctx.agents.get(sessionId)
|
||||
if (live !== undefined) return live
|
||||
throw error
|
||||
}).finally(() => {
|
||||
sessionCreations.delete(sessionId)
|
||||
})
|
||||
sessionCreations.set(sessionId, creation)
|
||||
}
|
||||
const agent = await creation
|
||||
if (agent.session.header.cwd !== cwd) {
|
||||
throw new SessionCwdConflict(sessionId, cwd, agent.session.header.cwd)
|
||||
}
|
||||
return agent
|
||||
}
|
||||
|
||||
/** Resolve or create one path while holding the Host's workspace-create chain. */
|
||||
function ensureWorkspace(
|
||||
path: string,
|
||||
title: string | undefined,
|
||||
rejectExistingName = false,
|
||||
createDirectory = false,
|
||||
): Promise<{ workspace: Workspace; created: boolean }> {
|
||||
const operation = workspaceCreationChain.then(async () => {
|
||||
if (rejectExistingName && title !== undefined
|
||||
&& ctx.workspace.list().some(workspace => workspace.title === title)) {
|
||||
throw new WorkspaceNameConflictError(title)
|
||||
}
|
||||
if (createDirectory) {
|
||||
try {
|
||||
await mkdir(path, { recursive: true })
|
||||
} catch (error: unknown) {
|
||||
throw new WorkspaceDirectoryCreationError(
|
||||
`failed to create workspace directory "${path}": ${String(error)}`,
|
||||
)
|
||||
}
|
||||
}
|
||||
const existing = await ctx.workspace.resolveByPath(path)
|
||||
if (existing !== undefined) return { workspace: existing, created: false }
|
||||
return { workspace: await ctx.workspace.create(path, title), created: true }
|
||||
})
|
||||
workspaceCreationChain = operation.then(() => undefined, () => undefined)
|
||||
return operation
|
||||
}
|
||||
|
||||
return {
|
||||
sessions: {
|
||||
// Attached sessions summarize from memory; persisted-but-unattached (cold)
|
||||
// sessions merge in from the persistence store so history survives restarts.
|
||||
// Legacy logs without a cwd (pre-project stance) are not served — every
|
||||
// session now records its project at create time.
|
||||
async list(request) {
|
||||
const items = ctx.sessions.list().map((session) => {
|
||||
const agent = ctx.agents.get(session.id)
|
||||
return summarize(session, agent?.status === 'running')
|
||||
})
|
||||
const attached = new Set(items.map(item => item.sessionId))
|
||||
const persistence = ctx.get('sessionPersistence')
|
||||
if (persistence !== undefined) {
|
||||
const cold = (await persistence.list()).filter(meta => !attached.has(meta.id) && meta.cwd !== undefined)
|
||||
items.push(...await Promise.all(cold.map(meta => summarizeCold(persistence, meta))))
|
||||
}
|
||||
items.sort((a, b) => b.updatedAt - a.updatedAt)
|
||||
return ok(request, { items })
|
||||
},
|
||||
|
||||
async create(request) {
|
||||
const sessionId = request.payload.sessionId ?? `session-${randomUUID()}` as SessionId
|
||||
let workspace: Workspace | undefined
|
||||
if (request.payload.workspaceId !== undefined) {
|
||||
workspace = ctx.workspace.get(brandWorkspaceId(request.payload.workspaceId))
|
||||
if (workspace === undefined) {
|
||||
return err(request, {
|
||||
code: 'workspace-not-found',
|
||||
message: `workspace "${request.payload.workspaceId}" not found`,
|
||||
details: { workspaceId: request.payload.workspaceId },
|
||||
})
|
||||
}
|
||||
}
|
||||
const cwd = workspace?.path ?? request.payload.cwd ?? defaults.cwd
|
||||
try {
|
||||
await ensureSession(sessionId, cwd, request.payload.sessionId !== undefined)
|
||||
} catch (error: unknown) {
|
||||
if (error instanceof SessionCwdConflict) {
|
||||
return err(request, {
|
||||
code: 'session-conflict',
|
||||
message: error.message,
|
||||
details: {
|
||||
sessionId: error.sessionId,
|
||||
requestedCwd: error.requestedCwd,
|
||||
...error.existingCwd === undefined ? {} : { existingCwd: error.existingCwd },
|
||||
},
|
||||
})
|
||||
}
|
||||
return err(request, {
|
||||
code: 'internal',
|
||||
message: `failed to create session "${sessionId}": ${String(error)}`,
|
||||
details: {},
|
||||
})
|
||||
}
|
||||
if (workspace !== undefined) {
|
||||
try {
|
||||
await workspace.attachSession(sessionId)
|
||||
} catch (error: unknown) {
|
||||
return err(request, {
|
||||
code: 'workspace-attach-failed',
|
||||
message: `session "${sessionId}" was created but could not attach to workspace "${workspace.id}": ${String(error)}`,
|
||||
details: { sessionId, workspaceId: workspace.id },
|
||||
})
|
||||
}
|
||||
}
|
||||
return ok(request, { sessionId })
|
||||
},
|
||||
|
||||
async history(request) {
|
||||
const { sessionId, beforeSeq, maxMessages } = request.payload
|
||||
const found = await agentFor(sessionId)
|
||||
if ('error' in found) return err(request, found.error)
|
||||
const page = paginate(found.agent.session.events, beforeSeq, maxMessages ?? DEFAULT_MAX_MESSAGES)
|
||||
// Views are computed against the registry at pagination time; result
|
||||
// pairing scans within the page only (message-boundary pagination keeps
|
||||
// a call and its result on one page — a cross-page miss soft-falls).
|
||||
const entries: HistoryEntry[] = page.events.map((event) => {
|
||||
const view = viewFor(ctx, event, callId => backscanArgs(page.events, callId))
|
||||
return { event, ...view === undefined ? {} : { view } }
|
||||
})
|
||||
return ok(request, { events: entries, hasMore: page.hasMore })
|
||||
},
|
||||
|
||||
async prompt(request) {
|
||||
const { sessionId, mode, content } = request.payload
|
||||
const found = await agentFor(sessionId)
|
||||
if ('error' in found) return err(request, found.error)
|
||||
const agent = found.agent
|
||||
// The rpcId rides MessageSource into user/message (merge declaration in api/sessions.ts; provisional correlation).
|
||||
const source: MessageSource = { kind: 'user', rpcId: request.rpcId }
|
||||
try {
|
||||
if (content.some(part => part.type === 'image')) {
|
||||
const routed = agent.session.requestHeader()?.config
|
||||
const provider = routed?.provider ?? agent.options.provider ?? defaults.provider
|
||||
const model = routed?.model ?? agent.options.model ?? defaults.model
|
||||
const activeModel = (await ctx.llm.listModels(provider)).find(candidate => candidate.id === model)
|
||||
if (activeModel?.inputModalities !== undefined && !activeModel.inputModalities.includes('image')) {
|
||||
return err(request, {
|
||||
code: 'attachment-error',
|
||||
message: `Model "${model}" does not support image input.`,
|
||||
details: { reason: 'MODEL_DOES_NOT_SUPPORT_IMAGES' },
|
||||
})
|
||||
}
|
||||
}
|
||||
const durable = await durablePromptContent(ctx, content)
|
||||
if (mode === 'steer') agent.steer(durable, { source })
|
||||
else agent.followup(durable, { source })
|
||||
} catch (error: unknown) {
|
||||
if (error instanceof AttachmentError) {
|
||||
return err(request, {
|
||||
code: 'attachment-error',
|
||||
message: error.message,
|
||||
details: { reason: error.code },
|
||||
})
|
||||
}
|
||||
// A synchronous throw from send/steer means disposed or invalid input; surface as agent-busy with the reason attached.
|
||||
return err(request, { code: 'agent-busy', message: 'prompt rejected', details: { reason: String(error) } })
|
||||
}
|
||||
return ok(request, { accepted: true as const })
|
||||
},
|
||||
|
||||
async attachment(request) {
|
||||
const { sessionId, attachmentId } = request.payload
|
||||
const found = await agentFor(sessionId)
|
||||
if ('error' in found) return err(request, found.error)
|
||||
const ref = referencedImage(found.agent.session.events, String(attachmentId))
|
||||
if (ref === undefined) {
|
||||
return err(request, {
|
||||
code: 'attachment-error',
|
||||
message: 'Image is not referenced by this session.',
|
||||
details: { reason: 'ATTACHMENT_NOT_REFERENCED' },
|
||||
})
|
||||
}
|
||||
try {
|
||||
const stored = await ctx.attachments.readImage(ref)
|
||||
return ok(request, {
|
||||
attachment: stored.ref,
|
||||
data: Buffer.from(stored.data).toString('base64'),
|
||||
})
|
||||
} catch (error: unknown) {
|
||||
if (error instanceof AttachmentError) {
|
||||
return err(request, {
|
||||
code: 'attachment-error',
|
||||
message: error.message,
|
||||
details: { reason: error.code },
|
||||
})
|
||||
}
|
||||
return err(request, {
|
||||
code: 'internal',
|
||||
message: 'Unable to read image attachment.',
|
||||
details: {},
|
||||
})
|
||||
}
|
||||
},
|
||||
|
||||
cancel(request) {
|
||||
const { sessionId } = request.payload
|
||||
const agent = ctx.agents.get(sessionId)
|
||||
if (agent === undefined) {
|
||||
return Promise.resolve(err(request, {
|
||||
code: 'session-not-found',
|
||||
message: `session "${sessionId}" not found (not attached)`,
|
||||
details: { sessionId },
|
||||
}))
|
||||
}
|
||||
agent.cancel()
|
||||
return Promise.resolve(ok(request, { accepted: true as const }))
|
||||
},
|
||||
},
|
||||
|
||||
workspace: {
|
||||
list(request) {
|
||||
return Promise.resolve(ok(request, { items: ctx.workspace.list().map(workspaceView) }))
|
||||
},
|
||||
|
||||
// Exactly one of path/name arrives (schema refine). Existing-folder
|
||||
// adoption reuses its canonical path; create-by-name rejects a name
|
||||
// already present in the registry.
|
||||
async create(request) {
|
||||
const { payload } = request
|
||||
let path: string
|
||||
if (payload.name !== undefined) {
|
||||
const name = payload.name.trim()
|
||||
if (name === '' || name === '.' || name === '..' || /[/\\]/.test(name)) {
|
||||
return err(request, {
|
||||
code: 'workspace-invalid-path',
|
||||
message: `workspace name must be one non-empty path segment, got "${payload.name}"`,
|
||||
details: { path: payload.name },
|
||||
})
|
||||
}
|
||||
path = join(defaults.workspaceRoot, name)
|
||||
} else {
|
||||
path = payload.path as string
|
||||
}
|
||||
try {
|
||||
const name = payload.name?.trim()
|
||||
const { workspace, created } = await ensureWorkspace(
|
||||
path,
|
||||
name,
|
||||
name !== undefined,
|
||||
name !== undefined,
|
||||
)
|
||||
return ok(request, { workspace: workspaceView(workspace), created })
|
||||
} catch (error: unknown) {
|
||||
if (error instanceof WorkspaceNameConflictError) {
|
||||
return err(request, {
|
||||
code: 'workspace-name-conflict',
|
||||
message: error.message,
|
||||
details: { name: error.workspaceName },
|
||||
})
|
||||
}
|
||||
if (error instanceof WorkspaceDirectoryCreationError) {
|
||||
return err(request, { code: 'internal', message: error.message, details: {} })
|
||||
}
|
||||
// The registry rejects a path that does not resolve to an existing
|
||||
// directory (realpath ENOENT / not-a-directory) — the business
|
||||
// error of the typed-path flow, surfaced as a validation failure.
|
||||
return err(request, {
|
||||
code: 'workspace-invalid-path',
|
||||
message: `cannot create a workspace at "${path}": ${error instanceof Error ? error.message : String(error)}`,
|
||||
details: { path },
|
||||
})
|
||||
}
|
||||
},
|
||||
|
||||
},
|
||||
|
||||
host: {
|
||||
async describe(request) {
|
||||
const activeModel = (await ctx.llm.listModels(defaults.provider))
|
||||
.find(model => model.id === defaults.model)
|
||||
// TODO(step2): version should read apps/cli's package.json; placeholder for now.
|
||||
return ok(request, {
|
||||
version: '0.0.1',
|
||||
// Same source as session.create's fallback: the UI's default project
|
||||
// must match where an unspecified-cwd session actually lands.
|
||||
cwd: defaults.cwd,
|
||||
provider: defaults.provider,
|
||||
model: defaults.model,
|
||||
...activeModel === undefined ? {} : { activeModel },
|
||||
imageLimits: {
|
||||
...ctx.attachments.imageLimits,
|
||||
mediaTypes: [...ctx.attachments.imageLimits.mediaTypes],
|
||||
},
|
||||
attachedSessions: ctx.agents.list().length,
|
||||
})
|
||||
},
|
||||
},
|
||||
|
||||
events: {
|
||||
mux(_request, signal) {
|
||||
const queue = new FrameQueue<RpcRequest<MuxFrame>>()
|
||||
muxQueues.add(queue)
|
||||
for (const session of ctx.sessions.list()) {
|
||||
subscribeSession(queue, session)
|
||||
}
|
||||
for (const pending of pendingQuestions.values()) {
|
||||
queue.push({
|
||||
rpcId: pending.rpcId,
|
||||
payload: {
|
||||
type: 'question/requested', sessionId: pending.sessionId,
|
||||
questions: pending.questions,
|
||||
},
|
||||
})
|
||||
}
|
||||
// Per-session open-call table for result-view pairing. Bounded by the
|
||||
// per-turn call count: entries clear on turn/end; a table miss (stream
|
||||
// opened mid-turn) backscans the session's in-memory events instead.
|
||||
const openCalls = new Map<SessionId, Map<string, { name: string; args: unknown }>>()
|
||||
const disposers = [
|
||||
ctx.on('session/event', (session: Session, event: SessionEvent) => {
|
||||
if (event.type === 'tool/call') {
|
||||
const data = event.data as ToolCallData
|
||||
try {
|
||||
let table = openCalls.get(session.id)
|
||||
if (table === undefined) openCalls.set(session.id, table = new Map<string, { name: string; args: unknown }>())
|
||||
table.set(data.callId, { name: data.name, args: JSON.parse(data.arguments) })
|
||||
} catch {
|
||||
// Unparseable model arguments: leave the table unset; the result view soft-falls.
|
||||
}
|
||||
} else if (event.type === 'turn/end') {
|
||||
openCalls.delete(session.id)
|
||||
}
|
||||
const view = viewFor(ctx, event, callId =>
|
||||
openCalls.get(session.id)?.get(callId) ?? backscanArgs(session.events, callId))
|
||||
queue.push(frame({ type: 'session/event', sessionId: session.id, event, ...view === undefined ? {} : { view } }))
|
||||
if (event.type === 'session/title') {
|
||||
// The accepted raw event is already in session.events, so the fold must find it.
|
||||
queue.push(frame(titleFrame(session) as SessionTitleFrame))
|
||||
}
|
||||
}),
|
||||
ctx.on('session/created', (session: Session) => {
|
||||
subscribeSession(queue, session)
|
||||
}),
|
||||
ctx.on('session/disposed', (session: Session) => {
|
||||
openCalls.delete(session.id)
|
||||
}),
|
||||
]
|
||||
return queue.iterate(signal, () => {
|
||||
muxQueues.delete(queue)
|
||||
for (const dispose of disposers) dispose()
|
||||
})
|
||||
},
|
||||
|
||||
host(_request, signal) {
|
||||
const queue = new FrameQueue<RpcRequest<HostFrame>>()
|
||||
const committedWorkspaceIds = new Set(
|
||||
ctx.workspace.list().map(workspace => String(workspace.id)),
|
||||
)
|
||||
const disposers = [
|
||||
ctx.on('session/created', (session: Session) => {
|
||||
queue.push(frame({
|
||||
type: 'host/session-added',
|
||||
sessionId: session.id,
|
||||
...session.header.parentSession === undefined ? {} : { parentSessionId: session.header.parentSession },
|
||||
// cwd rides the frame so the client list needs no refresh to group the new session.
|
||||
...session.header.cwd === undefined ? {} : { cwd: session.header.cwd },
|
||||
}))
|
||||
}),
|
||||
ctx.on('session/disposed', (session: Session) => {
|
||||
queue.push(frame({ type: 'host/session-removed', sessionId: session.id }))
|
||||
}),
|
||||
ctx.on('agent/status', (agent: Agent, status: AgentStatus) => {
|
||||
if (status === 'disposed') return
|
||||
queue.push(frame({ type: 'host/session-status', sessionId: agent.id, running: status === 'running' }))
|
||||
}),
|
||||
ctx.on('agent/error', (agent: Agent, _turn: number, _step: number, error: Error) => {
|
||||
queue.push(frame({ type: 'host/agent-error', sessionId: agent.id, message: String(error) }))
|
||||
}),
|
||||
ctx.on('domain/changed', (change) => {
|
||||
if (change.domain !== 'workspace' || change.operation !== 'put') return
|
||||
if (change.table === '') {
|
||||
const state = workspaceDomainState.parse(change.value)
|
||||
for (const workspaceId of state.workspaceIds) {
|
||||
if (committedWorkspaceIds.has(workspaceId)) continue
|
||||
const workspace = ctx.workspace.get(workspaceId)
|
||||
if (workspace === undefined) {
|
||||
throw new Error(`committed workspace registry references missing workspace "${workspaceId}"`)
|
||||
}
|
||||
committedWorkspaceIds.add(workspaceId)
|
||||
queue.push(frame({ type: 'host/workspace-changed', workspace: workspaceView(workspace) }))
|
||||
}
|
||||
return
|
||||
}
|
||||
if (change.table !== 'workspaces' || !committedWorkspaceIds.has(change.key)) return
|
||||
// Existing-entity table writes are complete attach/touch commits.
|
||||
// A new entity's first put waits for the global registry write above.
|
||||
queue.push(frame({
|
||||
type: 'host/workspace-changed',
|
||||
workspace: changedWorkspaceView(change.key, change.value),
|
||||
}))
|
||||
}),
|
||||
]
|
||||
return queue.iterate(signal, () => { for (const dispose of disposers) dispose() })
|
||||
},
|
||||
},
|
||||
|
||||
respond(message: ClientResponse): Promise<RpcReceipt> {
|
||||
const pending = pendingQuestions.get(message.rpcId)
|
||||
if (pending === undefined) return Promise.resolve({ accepted: false, reason: 'not-pending' })
|
||||
if (!message.result.ok) {
|
||||
if (message.result.error.code !== 'cancelled') {
|
||||
return Promise.resolve({ accepted: false, reason: 'bad-response' })
|
||||
}
|
||||
claimQuestion(pending, 'cancelled')
|
||||
pending.reject(new UserInteractionError(
|
||||
'the user cancelled ask_user_question', 'ASK_CANCELLED'))
|
||||
return Promise.resolve({ accepted: true })
|
||||
}
|
||||
const parsed = questionResponsePayloadSchema.safeParse(message.result.value)
|
||||
if (!parsed.success) {
|
||||
return Promise.resolve({ accepted: false, reason: 'bad-response' })
|
||||
}
|
||||
const payload: QuestionResponsePayload = {
|
||||
sessionId: parsed.data.sessionId,
|
||||
answer: {
|
||||
answers: parsed.data.answer.answers.map(answer => ({
|
||||
id: answer.id,
|
||||
selected: answer.selected,
|
||||
...(answer.custom === undefined ? {} : { custom: answer.custom }),
|
||||
})),
|
||||
},
|
||||
}
|
||||
if (!matchesQuestions(payload, pending)) {
|
||||
return Promise.resolve({ accepted: false, reason: 'bad-response' })
|
||||
}
|
||||
claimQuestion(pending, 'answered')
|
||||
pending.resolve(payload.answer)
|
||||
return Promise.resolve({ accepted: true })
|
||||
},
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user