SECTION 01 / OPENING
Notes on harness engineering
Where reliable AI agent capability actually comes from — and how to build it.
In engineering, AI capability does not live in the model alone. It is distributed across tools, verifiers, control flow, and the design of the operating environment. The Harness is a working notebook on that problem — writing from the intersection of agentic AI and architecture, engineering, and construction.
SECTION 02 / TOPICS
Harness Engineering
The tools, verifiers, orchestration, and process design that make agentic work reliable. Not the model — the system around it.
13 articles 02Agent Evaluation
Benchmarking agents on real engineering tasks. What to measure, how to measure it, and why most evals miss what matters.
7 articles 03AI in AEC
Applying agentic AI to architecture, engineering, and construction — where the work is instance-bound, constraint-heavy, and intolerant of generic answers.
10 articlesSECTION 04 / RECENT
- open-endedness Broad Creation, Narrow Authority An open-ended approach to AI-enabled software: let practitioners explore, embed controls in the platform, and govern the moment an experiment acquires organisational consequence.
- agent-security The Attacker Moves Second. So Did I. My benchmark optimiser found the same seam an adversary would: it rewrote the world its own grader consumed. A design note on provenance ledgers—agent memory where authority comes from evidence, not persuasion.
- task-worlds Fluent, But Unsafe How 150 supposedly finished tasks and perfect model scores hid a weak engineering benchmark—and how auditable reviews exposed what the numbers missed.
- data-engineering Mediation, Not Intermediation Why the 'fix your foundations before AI' message has it backwards: agentic workflows are the way out of legacy data, and governance worth having is co-designed from practice, not committees.
- ai-evaluation Task Worlds and Meta-Harnesses How task worlds, Badiou, Plasticity, and the AEC-Bench meta-harness turn task prose, evidence, review, governance, and repair into runnable machinery.