AI Agent Architecture: Multi-Agent Systems: Topologies, Protocols, and Shared State — Agents Behind Contracts, Versioned Messages, a Blackboard over an Event Log, a Deterministic Supervisor, and Human - Couverture souple

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Couverture souple

ISBN 13 : 9798173886170

Editeur : Independently published, 2026

Synopsis

The workers may guess. The supervisor may not.

Atlas, Meridian Supply Co.'s customer-operations agent, acted through one door by Book 4. Then a reorganisation drew a line through it, and the split that took a day paged the other team at 07:40 with a KeyError in code nobody had changed. This book is what a team of agents needs that a single agent does not — and it builds each piece from an incident, prices it in a table, and proves it with a test.

Every chapter is a lab on the companion repository — one dependency, fully offline with a scripted mock, every listing printed from a verified line range, every command paired with its expected output. Five moves per chapter: Run the demo, Read the listing, Break it with the chapter's planted failure, Fix it with the design move, Prove it with a test that turns green. You will:

• Split Atlas into agents on a wire and read the bill — same answers, same model cost, plus hops, kilobytes, and latency — then put a contract on the seam so a rename is refused by name
• Run the same four agents as a pipeline, under a supervisor, and as a network, and choose the shape from a table with the column pictures hide: how many places must be asked to find a ticket
• Give every message a typed, versioned schema; diff a proposed version and read which peers it breaks; adapt and negotiate between versions
• Fold a blackboard from an append-only event log, replay it to the digest, travel to event forty-nine, and catch the write that went behind the log
• Make the supervisor deterministic code and measure it: the same inbox routed a thousand times, one trace — against a model in the routing seat, a thousand
• Route by a capability registry the agents write; add a specialist with zero orchestrator edits, and prove the zero with a digest
• Reproduce a double claim and a lost update with a deterministic scheduler, and cure them with an atomic claim and a three-way merge
• Instrument the team, catch a ping-pong loop at hop six, and stop a retry storm with a circuit breaker — and measure why retries in two layers multiply
• Put people in the topology as nodes with queues, checks, authority, and SLAs; simulate three rosters on the team's worst week and read the breaches
• Assemble Atlas v0.5 and prove it on outcomes in the world — mail, CRM, refund — with an org chart that is the architecture diagram

Every chapter carries a research lineage (Conway and microservices, Contract Net and Wooldridge, FIPA-ACL and A2A, Hearsay-II and event sourcing, workflow determinism, service discovery and Team Topologies, two-phase locking and CRDTs, Perrow and the flash crash, mixed-initiative and queueing), a five-item failure catalog, an applied deep-dive, and exercises in three tiers. Ten figures, 246 tests, forty-four decision records

Who it's for: engineers scaling from one agent to a cooperating team — anyone who has drawn boxes and arrows for agents and wants to know what each arrow costs, who decides where a message goes, and how to prove afterwards what the team did. Assumes Books 2–4 or the equivalent; basic Python; no framework, no GPU.

The AI Agent Architecture Series is the architect's track: one architectural layer per book, on one running system the reader refactors and grows by hand. This is Book 5, Multi-Agent Systems — the team, designed and proved.

Détails de l'édition

• Éditeur: Independently published
• Date d'édition: 2026
• Langue: anglais
• ISBN 13: 9798173886170
• Reliure: Broché
• Nombre de pages: 224
• Coordonnées du fabricant: Printed by Amazon on behalf of the author; https://www.amazon.fr/hz/contact-us; ; c/o Amazon Media EU S.à.r.l., 38 Avenue John F. Kennedy; Luxembourg; L-1855; Luxembourg