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

Featured Spring AI Recipes

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NEW Defining Claude-Style Subagents

Defining Claude-Style Subagents

Large language models are good at many things, but sometimes it’s better to delegate specialized work to an expert. In this recipe, you’ll learn how to define Claude-style subagents in Markdown and let Spring AI automatically invoke them when they’re the right tool for the job.

agents
NEW Making RAG Conversation-Aware

Making RAG Conversation-Aware

RAG works best when it understands the conversation, not just the latest question. In this recipe, you'll teach Spring AI to fold relevant chat history into vector store queries so follow-up questions retrieve the right context every time.

ragmemory
NEW RAG Without a Separate Vector Database

RAG Without a Separate Vector Database

RAG doesn’t have to mean deploying and maintaining a separate vector database. In this recipe, you’ll learn how to build a fully functional Spring AI RAG application using an in-JVM vector store that keeps everything inside your application.

rag

Latest Updates

  • Aug 06 Defining Claude-Style Subagents
  • Aug 03 Making RAG Conversation-Aware
  • Jul 30 RAG Without a Separate Vector Database
  • Jul 27 Visualizing Spring AI Alibaba Graph Workflows

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

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Books

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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$ spring init agent
> Building...
> Adding tools
> Done.

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