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Thor Henning Hetland

Software architect. AI development pioneer. Community builder.

30 years building software, communities, and organizations. Co-founder of JavaZone and founder of eXOReaction. Java Champion since 2005. Based in Oslo.

These days I'm focused on what happens when experienced architects work with AI -- not just alongside it.

Start here Read the blog About me

Thor Henning Hetland


Recent writing

  • The Other AI in the Conversation


    Someone finally did what I keep asking people to do — pointed their AI agent at this blog and had it read the whole thing chronologically. The agent wrote back. What it said is the best argument I have for reading a corpus as a connected argument rather than a pile of retrievable facts, and it demonstrated the thesis of the series on the series itself.

    September 4, 2026

  • Write the tool once


    A thought experiment: that the agentic web -- a direction, not yet a standard -- may be the cheaper, more testable, better-incentivised route to accessibility, and a hypothesis about who gets to build the tools.

    September 4, 2026

  • Fan-Out: What the Literature Already Knew About the Third Schedule


    The Third Schedule claimed, from one measured practice, that builder time has become parallelizable. This post takes that claim outside: to the four writers who already attempted the maker's-schedule update, to the interruption science that seems to forbid it, and to a twenty-year-old supervisory-control literature that quietly formalized the whole problem — then uses the one hard dataset we have to set the limit the broader conversation keeps failing to state.

    August 25, 2026

All posts


What I'm working on

  • Skill-Driven Development


    A methodology for structured AI collaboration that compounds daily. Six pillars. Proven 25--66x productivity gains across manufacturing, finance, energy, and security.

    About eXOReaction

  • Synthesis · v1.42.0


    Local-first knowledge infrastructure platform. 76 CLI commands, 52 MCP tools, 4,700+ tests. Indexes workspaces, builds multi-layer knowledge graphs, exposes episodic memory and Notion integration to AI agents.

    Knowledge Infrastructure · Open Source

  • Knowledge Context Protocol


    A YAML standard that makes knowledge navigable by AI agents. Topology, intent, freshness, audience targeting. Submitted to the Linux Foundation's Agentic AI Foundation alongside MCP and AGENTS.md.

    Knowledge Infrastructure

  • lib-pcb


    A complete PCB design file processing library in Java. 8 format parsers, 28 validators, 17 auto-fixers, manufacturing-ready Gerber output. The project that proved SDD at scale -- 197,831 lines in 11 days.

    Open Source

  • Xorcery AAA


    Temporal analytics and DevSecOps intelligence platform built on the Xorcery reactive framework. Tracks vulnerability lifecycles, answers "why did this break?", and automates compliance -- without cloud lock-in.

    Open Source

  • Quadim


    A competence management SaaS platform. Helps organisations map, develop, and visualise the skills of their people. Built with the same AI-augmented methodology as lib-pcb.

    quadim.ai

  • Workshops & Training


    Hands-on SDD workshops for development teams. From full-day intensives to multi-week mentoring programs. Real code, real methodology, real results.

    Get in touch

  • JavaZone & Community


    Co-founded JavaZone in 2001 -- now Scandinavia's largest developer conference with ~3,000 attendees. Communities are where real knowledge transfer happens.

    Organizations


The proof

In January 2026, I built lib-pcb -- a complete PCB design library in Java.

197,831 lines of Java
7,461 tests (99.8% pass)
11 days total build time
10--18 months industry standard

8 format parsers. 28 validators. 17 auto-fixers. Manufacturing-ready Gerber output. Zero AI-induced production bugs.

This was not magic. It was methodology -- Skill-Driven Development applied systematically with Claude Code. The kind of thing I write about and teach in workshops.


Speaking

Conference talks on architecture, productivity, and development methodology. JavaZone, JavaOne, NDC, and more.

All presentations