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 Building a Graph-Based Agentic Workflow with LangGraph4j

Building a Graph-Based Agentic Workflow with LangGraph4j

Graph-based workflows give you explicit control over how an agent moves from one task to the next. With LangGraph4j, you can bring that model to Spring AI while keeping the graph itself independent of any particular AI framework.

agentsgraphworkflows
NEW Filtering RAG Results with Metadata

Filtering RAG Results with Metadata

Vector similarity can find what’s relevant, but sometimes relevance alone isn’t enough. Add metadata filtering to RAG and you can narrow the search before irrelevant context ever reaches the LLM.

rag
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

Latest Updates

  • Aug 13 Building a Graph-Based Agentic Workflow with LangGraph4j
  • Aug 11 Filtering RAG Results with Metadata
  • Aug 06 Defining Claude-Style Subagents
  • Aug 03 Making RAG Conversation-Aware

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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Talks, interviews, demos, and video walkthroughs from conferences and events.

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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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