Human-in-the-Loop Architecture: Pre-Execution vs. Post-Execution Approval Gates

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import { AgentRein, ApprovalRejectedError, ApprovalTimeoutError } from 'agentrein'
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import Stripe from 'stripe'
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const agentrein = new AgentRein({ apiKey: process.env.AGENTREIN_API_KEY! })
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const session = await agentrein.newSession({ agentId: 'procurement-agent' })
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const agentStripe = agentrein.wrap(new Stripe(process.env.STRIPE_KEY!), session, {
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  connector: 'stripe',
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  requiresApproval: ['subscriptions.cancel', 'customers.del'],
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  pollIntervalMs: 2000, // Poll every 2 seconds
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  timeoutMs: 300000,    // Wait up to 5 minutes for reviewer
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})
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try {
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  // SDK pauses local execution and polls until approved or rejected
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  await agentStripe.subscriptions.cancel({ id: 'sub_999' })
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  console.log('Action approved and executed.')
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} catch (err) {
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  if (err instanceof ApprovalRejectedError) {
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    console.error(`Approval rejected by reviewer: ${err.reason}`)
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    // Session actions have already been automatically rolled back
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  } else if (err instanceof ApprovalTimeoutError) {
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    console.error('Approval timed out without reviewer response')
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  }
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}