AI Agent Architecture : Memory & Knowledge: State, RAG, and Knowledge Graphs by Design - Context Assembly, Episodic and Semantic Stores, a Measured Retrieval Pipeline, Write-Back Gates, Retention, .
Language: English
Published by Independently Published Sep 2026, 2026
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Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
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- Title
- AI Agent Architecture : Memory & Knowledge: State, RAG, and Knowledge Graphs by Design - Context Assembly, Episodic and Semantic Stores, a Measured Retrieval Pipeline, Write-Back Gates, Retention, .
- Author
- Vu Tri Cong Mobiluck - Code247. Ai
- Publisher
- Independently Published Sep 2026
- Publication year
- 2026
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- English
- ISBN 13
- 9798173882387
- Item weight
- 315 grams
- Dimensions
- 229x152x12 mm
- Series
- Book 3 of 7: The AI Agent Architecture Series
The context window is a cache, not a store — and an agent that keeps its history in the prompt has confused the two.
Atlas, Meridian Supply Co.'s customer-operations agent, learned to take many steps safely in Book 2. It still began every run empty. When Kestrel Labs asked any news on my earlier request?, Atlas answered a request it had no way of knowing about; when Lena put the previous replies in the prompt to fix it, Northgate Tooling's history overflowed the window in the second week — and before it overflowed, the model had quietly lost the one fact in the middle that the customer cared about. This book builds the memory subsystem that a many-step agent needs, one store at a time, each justified by an incident and proved by 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:
Every chapter carries a research lineage (Atkinson–Shiffrin and Tulving, Lost in the Middle, case-based reasoning, BM25, RAG and the Cranfield tradition, GraphRAG, consolidation, data-protection retention, optimistic concurrency), a five-item failure catalog, an applied deep-dive, and exercises in three tiers. Ten figures, a hundred and thirty-three tests, twenty-six decision records, one running system that grew from Book 2's graph without removing a node of it.
Who it's for: engineers designing what agents remember and know — anyone who has bolted a vector database onto a prompt and wants to know what should go in it, what should never, how to measure whether it helps, and how to forget on purpose. Assumes Book 2 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 3, Memory & Knowledge — what the agent remembers, designed and measured.
- Draw the memory map — working, episodic, profile, semantic, procedural — from the run states Atlas actually produces, and measure the day the prompt overflows
- Treat the context window as a budgeted cache with priorities, relevance, an order that survives to the prompt, and an eviction log — and draw the budget curve to its knee
- Hand-build a vector store — tokens, vectors, cosine, three chunkers — and show with a table that how a document is cut matters more than how it is searched
- Rebuild RAG as a pipeline with a metric at every stage and a grounding contract that refuses an invented sentence by name — and learn exactly what the contract cannot catch
- Add a knowledge graph over the systems of record for the questions that are paths, not passages — and see the failure of graphs built from prose
- Gate every write-back by source: episodes, stated preferences, and human verdicts kept; tool results and model prose refused — then remove the gate and watch the index grow sixteenfold
- Reproduce a lost update a hundred times and fix it with compare-and-set: one integer, one comparison, one loop, zero lost
"Synopsis" may belong to another edition of this title.
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