AIInference Foundrymodern AI systems fieldbook Open fieldbook ↗

Spring AI 2.0 · OpenAI · Gemini · Ollama

Evidence enters.
Action is earned.

Build AI systems that retrieve the right evidence, choose bounded tools, validate every action, and survive real production failure.

Start the fieldbook ↗Explore 145 concepts

INTENT → RETRIEVAL → EVIDENCE → MODEL → TOOL → VALIDATION → ACTION → EVAL

Modern AI system execution graph A query retrieves evidence, invokes a model and bounded tools, then validates a grounded response. MODEL ROLEREASON HYBRIDRETRIEVE GROUNDEDEVIDENCE MCP / APITOOLS POLICYVALIDATE 8 SOURCES RANKED2 TOOLS BOUNDEDCLAIMS GROUNDED
Complete production path
24 detailed chapters
145 concepts
48 decision drills
78 scored questions

From token to production

Follow one decision through the whole system.

Connect Spring AI, models, embeddings, retrieval, tools, agents, tuning, evaluation, security, and operations.
  1. 01UnderstandModels, tokens, Spring AI 2, prompts, outputs, and provider routingCh 00–04
  2. 02ConnectOpenAI, Gemini, Ollama, embeddings, semantic search, and vector storesCh 05–10
  3. 03GroundIngestion, basic and advanced RAG, memory, tools, and MCPCh 11–15
  4. 04ControlAgents, approvals, fine-tuning, local adapters, evaluation, and securityCh 16–21
  5. 05OperateProduction architecture and the complete ClaimsPilot implementationCh 22–23

One answer, fully understood

Evidence enters.
Action must be earned.

Trace the grounded path →
  1. 01Intent is scopedidentity and authority are known
  2. 02Evidence retrieveshybrid search finds sources
  3. 03Model proposesreasoning stays inside boundaries
  4. 04Tools are checkedserver policy authorizes calls
  5. 05Evaluation provesclaims, cost, latency, and safety pass

Real-life AI architecture

ClaimsPilot

Help insurance adjusters review evidence without allowing a model to decide or pay a claim.

Design multimodal ingestion, hybrid retrieval, policy-date filters, citations, provider routing, read-only tools, structured drafts, human approval, evaluations, security, canaries, and rollback.

Open the complete scenario ↗
PACKETRETRIEVALMODELAPPROVALparse · authorize · retrieve · reason · validate · approve

Recall, decide, explain

Build judgment—not framework trivia.

Systems labSearch 145 concepts and rehearse 48 production decisions.Open workspace ↗ Engineer assessmentTake 78 original questions across thirteen application domains.Begin assessment ↗ Printable fieldbookRead the complete modern AI systems guide offline.Download PDF ↓

A framework is a set of ownership rules.

Know what changes, who owns it, and how you prove it.

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