A running log of what I've built, what I've tried and dropped, and what I've looked at and decided not to touch. As much for me as for anyone else. Filter by topic, or search inline.
I replaced a 69,000-line code tool with 4,090 lines of Rust in a day, because a stale code graph is worse than none.
Most run-phase chains optimise cost. One enforces a hard gate, because getting it wrong would ship a UI bug nobody saw.
Most jobs in a planning pipeline do not need a frontier model. Picking the right one per role saves an order of magnitude. One job earns the splurge.
Porting Retrospective Harness Optimisation into a harness with real gate outcomes. What the label-free recipe buys you, and what to swap.
Eight techniques from Cloudflare's multi-agent code reviewer, ported into the integration-verify gate of my custom agent harness. What transferred and what I had to write down myself.