
"Persist state: It needs a robust job queue and state machine to track that a task is in_progress for the next 72 hours. Handle asynchrony: It must be a durable, server-side process that can gracefully handle restarts, manage webhook ingestion and resume workflows right where they left off. Manage failure: It needs complex retry logic (with exponential backoff), idempotency keys (so a failed call that gets retried doesn't accidentally buy a campaign twice) and circuit breakers for when a partner's server inevitably goes down."
"You're budgeting for a new integration. You should be budgeting for a new distributed system. The "hard mode" of action protocols But the response you get back isn't . It's status: submitted . That buy now sits in a pending_approval state for hours, or even days, until a human on the other end clicks a button and the server (eventually) sends your system a webhook. Your agent just became a server."
Ad Context Protocol (AdCP) adoption introduces significant engineering complexity beyond a simple API integration. Implementations must be treated as full distributed systems requiring orchestration engines. Core capabilities include persistent job queues and state machines to track long-running tasks, durable server-side processes to handle asynchrony and webhook ingestion, and comprehensive failure management with exponential backoff, idempotency keys, and circuit breakers. A central hub becomes necessary for businesses that operate with many partners and walled gardens to enable shared budget control and unified analytics across multiple connections.
 Read at AdExchanger
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