Guards

Jev Gate in one plugin: the orchestration gate, the extractive compactor, the Vitest log folder, the Jev effort and model router and the jev_evidence tool. Every part is on by default; each has its own on/off option.

Folds runs of identical consecutive lines in a passing Vitest log the host saved to a file, so the model reads the whole run with exact counts instead of a 2 KB preview; on by default.