Writing from the practice of Possibility Space Engineering. Long-form essays on the craft, field notes from inside specific engagements, primers on the substrates we compose with, and the Scout Log — our observations on where the frontier is moving. Read at the altitude the argument is operating at.
Context engineering operates at one altitude of field engineering — the middle altitude where context shapes which features the model's identity activates. Field engineering names the discipline that operates across identity, context, and task simultaneously. The two practices compose; understanding the full discipline reveals what gets missed when attention stays at the middle layer.
Read the piece →All WritingThe Sequoia thesis named exemplar firms across 9 verticals; every one a vertical specialist. The horizontal AI-native boutique slot was unfilled when the category-forming thesis-pieces published. The slot exists structurally — it answers demand for cross-domain pattern recognition and meta-craft fluency at boutique scale. The studio that crystallizes it during the 2026 window owns the vocabulary that defines it.
Essay
Apr 26, 2026
A Natural Language Agent Application is a persistent, evolving human-AI partnership environment composed of four architectural layers — identity (CLAUDE.md), skills (pattern generators), knowledge (accumulating context), and tools (orchestrated through natural language). NLAAs are a distinct application class, structurally different from chatbots, automation scripts, and agent harnesses. The substrate that makes the pattern citation-anchorable.
Essay
Apr 26, 2026
Systems left alone drift as the substrate around them evolves. The human navigator in the loop turns drift into compound capability. The deeper AI gets, the more the navigator matters.
Essay
Apr 25, 2026
Companies have friction topologies, not friction points. Each visible friction has a structural source; the structural sources connect to each other. Mapping the topology is the first move of every Possibility Space Engineering engagement.
Essay
Apr 25, 2026
A persistent natural-language workspace where a human and AI partner work together over time IS an application — its substrate is the field configuration, its accumulated layers become the product, and it gets more capable the longer it is used.
Essay
Apr 25, 2026
When the question gets asked at a fundamentally different altitude than the question the field is asking, a century of downstream work compresses into a single moment. Most AI questions today are wired questions; the photon question is available.
Essay
Apr 25, 2026
There is a position on the rising wave of AI capability that gets stronger as the wave gets larger. Not in spite of the wave — because of it. A long look at the role of the human Possibility Space Engineer in an era of rising AI capability.
Essay
Apr 21, 2026
The discipline of modulating the probability fields from which AI outputs emerge — what prompt engineering and context engineering point at, from one layer above.
Philosophy
Mar 21, 2026
Seven claims about how prompts shape AI behavior, validated against peer-reviewed research from ICLR, Anthropic, and the frontier of AI interpretability.
Field Engineering
Mar 21, 2026
What happens when two possibility space engineers navigate a probability field together for twelve hours. A real-time account of how MainThread Studio came into existence.
Build in Public
Mar 21, 2026
Most relevant roles are posted on company career pages you'll never visit. Here's how scanning 6,000+ companies reveals the jobs that job boards miss.
Market Intelligence
Mar 19, 2026