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feat: subagent list use preparation + projection

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This commit is contained in:
imccyu
2026-08-06 18:45:03 +08:00
parent 949d406086
commit a328fd34d5
22 changed files with 696 additions and 504 deletions
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41
packages/host/apiproxy/src/api-proxy.ts
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@@ -567,6 +567,15 @@ function subagentPromptError(
return err(request, { code: 'internal', message: 'subagent prompt failed', details: {} })
}
/** Stable RPC face of the missing projections capability, shared by every catalog read path. */
function projectionsUnavailableError(): RpcError {
return {
code: 'internal',
message: 'subagent listing is unavailable: this deployment does not mount the sessionProjections registry (load @deepseek-ai/dsh-session-projection)',
details: {},
}
}
/** Verify one address and mode against the complete direct-child catalog. */
async function catalogChild(
ctx: Context,
@@ -605,6 +614,9 @@ async function catalogChild(
|| (error instanceof SessionQueryError && error.code === 'SESSION_QUERY_ABORTED')) {
return { error: { code: 'cancelled', message: 'subagent catalog read was cancelled', details: {} } }
}
if (error instanceof SubagentError && error.code === 'SUBAGENT_CONTROL_PROJECTIONS_UNAVAILABLE') {
return { error: projectionsUnavailableError() }
}
if (error instanceof SessionQueryError && error.code === 'SESSION_QUERY_SESSION_NOT_FOUND') {
return {
error: {
@@ -925,28 +937,16 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
})
}
/** Whether the session's own suffix carries the durable subagent discriminator. */
function hasSubagentDescriptor(session: Pick<Session, 'events' | 'header'>): boolean {
const events = session.events
// Indexed scan from the own-suffix start: slicing copies the whole suffix
// on every Agent-bound RPC, including each `session.prompt` on long
// transcripts.
for (let index = session.header.seedLength ?? 0; index < events.length; index += 1) {
if (events[index]?.type === 'subagent/descriptor') return true
}
return false
}
/**
* Generic Host interaction cannot claim a durably classified subagent or an
* Agent created through its live parent. The runtime-owner arm also covers
* descriptor-less child publication windows and older stored headers.
* Generic Host interaction cannot claim a durably classified subagent
* (`origin: 'subagent'` in the header) or an Agent runtime-owned by its
* live parent.
*/
function hasSubagentOwner(
session: Pick<Session, 'events' | 'header'>,
session: Pick<Session, 'header'>,
agent: Agent | undefined,
): boolean {
if (session.header.origin === 'subagent' || hasSubagentDescriptor(session)) return true
if (session.header.origin === 'subagent') return true
const parentId = session.header.parentSession
if (parentId === undefined || agent === undefined) return false
const parent = ctx.agents.get(parentId)
@@ -1002,7 +1002,7 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
resume = (async () => {
try {
const inspected = await inspectServable(sessionId)
if (hasSubagentOwner({ header: inspected.meta, events: inspected.events }, undefined)) {
if (hasSubagentOwner({ header: inspected.meta }, undefined)) {
throw new SubagentSessionOwnership(sessionId)
}
const publishedSession = ctx.sessions.get(sessionId)
@@ -1121,7 +1121,7 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
// Ownership first: explicit-id adoption of a session-backed
// subagent must answer `agent-busy` regardless of the requested
// cwd (the api/commands.ts contract), not a cwd conflict.
if (hasSubagentOwner({ header: inspected.meta, events: inspected.events }, undefined)) {
if (hasSubagentOwner({ header: inspected.meta }, undefined)) {
throw new SubagentSessionOwnership(sessionId)
}
if (inspected.meta.cwd !== cwd) {
@@ -1912,6 +1912,9 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
details: {},
})
}
if (error instanceof SubagentError && error.code === 'SUBAGENT_CONTROL_PROJECTIONS_UNAVAILABLE') {
return err(request, projectionsUnavailableError())
}
return err(request, {
code: 'internal',
message: 'subagent catalog read failed',