WRITING

Short notes and evals on code agents, benchmarks and RL environments. 2026-11-03 I gave Opus a cheap coder to save money. Accuracy dropped and the bill went up [eval] 2026-10-14 Turn your agent sessions into evals. Mine found a 2× cheaper setup [eval] 2026-09-27 Same score, different agents [eval] 2026-09-26 My mini-benchmark for coding agents [eval]