·TypeScript
·4 min read
Sparra
A long-running, adversarial build harness. It builds software one work item at a time, each negotiated into a checkable "done" contract, implemented by a generator, then graded by an adversarial evaluator that actually runs the result, with cross-model judging so one model builds while another judges. Drive it by hand from a Claude Code session, or hand it off and let it run unattended.