https://rabauer.dev/blog/ Live coding sessions and engineering craft. en © 2026 Johannes Rabauer https://rabauer.dev/blog/vise-coding-in-practice/ https://rabauer.dev/blog/vise-coding-in-practice/ This live session walked through five levels of AI coding autonomy in Java, but the real takeaway was simpler: sustainable AI development depends on small reviewable steps, explicit specs, and deterministic quality gates. Fri, 03 Apr 2026 00:00:00 GMT vise-coding ai-agents java github-copilot tdd spec-driven-development https://rabauer.dev/blog/neo4j-graphrag-live-refactor/ https://rabauer.dev/blog/neo4j-graphrag-live-refactor/ A two-hour live refactor that moved a file search app from PostgreSQL to Neo4j using GraphRAG and LangChain4j. The session didn't land, but four lessons made it worth the attempt. Thu, 26 Mar 2026 00:00:00 GMT neo4j graphrag java quarkus langchain4j live-coding knowledge-graphs rag https://rabauer.dev/blog/ai-openrewrite-recipes/ https://rabauer.dev/blog/ai-openrewrite-recipes/ What I took away from this session with Tim te Beek: OpenRewrite becomes especially powerful when AI is used to help build deterministic, testable recipes instead of making uncontrolled code changes. Thu, 19 Mar 2026 00:00:00 GMT openrewrite java modernization github-copilot live-coding https://rabauer.dev/blog/vibe-coding-battle/ https://rabauer.dev/blog/vibe-coding-battle/ Two predefined prompts, one shared Java app, and strict CI gates: the one-shot version started but failed when retrieving results, while the split-prompt workflow produced the more stable app and better quality metrics. Thu, 05 Mar 2026 00:00:00 GMT vibe-coding java github-copilot spring-boot spring-ai vaadin live-coding prompt-engineering https://rabauer.dev/blog/guided-coding/ https://rabauer.dev/blog/guided-coding/ This live session made a strong case for using AI as a disciplined implementation engine: define constraints first, separate planning from coding, and review output against architecture instead of accepting it at face value. Thu, 26 Feb 2026 00:00:00 GMT guided-coding java github-copilot vscode ai-agents live-coding