Instructions for lisachenko/z-engine, covering working on z-engine, the one rule that is non-negotiable: version matching, branch model, generated engine definitions — never hand-edit and regenerating without docker (native mode).
Instructions for lisachenko/native-php-matrix, covering working on native-php-matrix, running tests, quality gates (all enforced in ci), anatomy of a .phpt test and repository map.
Claude Code instructions for sourcenetwork/defradb.rs, covering development principles, 0. the north star: 1.0 release, what "parity" means, 1. information hygiene and 2. temporal boundaries.