44 lines
1.6 KiB
TypeScript
44 lines
1.6 KiB
TypeScript
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/**
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* Loader fixture that holds the parent's second step until settlement delivery.
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* @module subagent-settlement-fence
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*/
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import type { Context } from '@deepseek-ai/cordis'
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import type {} from '@deepseek-ai/dsh-agent-loop'
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import type {} from '@deepseek-ai/dsh-subagent'
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/** Fixture plugin name. */
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export const name = 'subagent-settlement-fence'
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/**
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* Fence the parent's post-spawn request behind admission of the manager notice.
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*
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* This pins content order, not step placement: the held pre-step runs after its
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* own `Inbox.claim()`, so the notice lands after step 2's claim and is claimed at
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* step 3 because the child's settlement pipeline is strictly longer than the
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* parent's claim path, not because a barrier forces it.
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* @param ctx - assembled headless-agent context.
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*/
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export function apply(ctx: Context): void {
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const delivered = Promise.withResolvers<undefined>()
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let hasDelivered = false
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ctx.effect(() => {
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const disposeInbox = ctx.root.on('agent/inbox/inserted', ({ agent, message }) => {
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if (agent.session.header.parentSession !== undefined || message.source.kind !== 'subagent-settled') return
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hasDelivered = true
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delivered.resolve(undefined)
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})
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const disposeStep = ctx.root.on('agent/pre-step', async ({ agent, turn, step }, next) => {
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if (agent.session.header.parentSession === undefined && turn === 1 && step === 2 && !hasDelivered) {
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await delivered.promise
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}
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return next()
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})
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return () => {
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disposeStep()
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disposeInbox()
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}
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}, 'subagent-settlement-fence.listeners')
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}
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