Craig Walls

Software Engineer · Author · Speaker · Spring AI Explorer

Exploring Spring AI, intelligent applications, and modern Spring development.

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Focused on practical, real-world agentic systems with Spring AI.

Foundations Agents Tools Human-in-the-Loop Skills A2A MCP Workflows Memory Security RAG Voice Embabel Guardrails Graph

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NEW Better RAG Results with Reranking

Better RAG Results with Reranking

Retrieving relevant documents is only half the battle in RAG. What matters is which ones ultimately make it into the prompt. With reranking, you can give those results a second look and keep only the documents most relevant to the user's question.

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NEW Better RAG Results with Hybrid Search

Better RAG Results with Hybrid Search

Vector search is great at understanding what you mean, while lexical search excels at finding exactly what you said. Combine the two with hybrid search, and your RAG application can get the best of both worlds.

rag
NEW Better RAG Results with HyDE

Better RAG Results with HyDE

Sometimes RAG misses the best answer not because the answer isn’t there, but because the question uses the wrong words to find it. HyDE bridges that gap by imagining an answer first, then using it to retrieve the documents that actually matter.

rag

Latest Updates

  • Aug 27 Better RAG Results with Reranking
  • Aug 24 Better RAG Results with Hybrid Search
  • Aug 20 Better RAG Results with HyDE
  • Aug 17 Reasoning and Acting (ReAct)

New ideas, recipes, and experiments as I build with Spring AI.

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Author of Spring in Action and other books for Java developers.

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Spring AI in Action

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Conference talks and keynotes on Spring, AI, and software development.

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Projects

Open source projects, experiments, and tools I'm building and exploring.

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