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

Featured Spring AI Recipes

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NEW Persisting Chat Memory with JDBC

Persisting Chat Memory with JDBC

Your users expect your AI to remember previous conversations. But what happens when the application restarts? In this recipe, you’ll replace Spring AI’s in-memory chat memory with a JDBC-backed repository so conversations survive restarts and can be shared across multiple application instances.

memory
NEW Invoking an Embabel Agent in Java

Invoking an Embabel Agent in Java

Embabel agents aren’t limited to the interactive shell or MCP. In this recipe, you’ll learn how to invoke an Embabel agent directly from Java code, making it easy to integrate intelligent, goal-oriented behavior into any Spring application.

foundationsembabel
NEW Applying Semantic Guardrails

Applying Semantic Guardrails

Keyword filtering is fast, but it’s also easy to fool. In this recipe, you’ll build a semantic guardrail for Spring AI that uses an LLM to recognize forbidden topics, even when they’re mentioned indirectly or without using any forbidden words.

foundationssecurityguardrails

Latest Updates

  • Jul 20 Persisting Chat Memory with JDBC
  • Jul 16 Invoking an Embabel Agent in Java
  • Jul 13 Applying Semantic Guardrails
  • Jul 09 Safeguarding LLM Output

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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