0.68.0-alpha · core 2026-09-20

Structured criteria: blocks on all Completeness contracts. Every playbook mirrors its prose minima as machine-readable {id, kind, text} items (presence | count | semantic) beside the contract — the host routes deterministic kinds to its validators and translates each semantic criterion into one atomic Score question.
Examples, Edge Cases, and When-to-Use sections on 21 skills. Validator-clean (0 failures): routing triggers, failure handling, and activation test cases where they were missing.
Host patterns: veto-only routers and golden calibration. The blueprint documents model-veto discipline (cancel cleared actions only, never authorize) and the golden-set loop (Cohen's kappa keep ≥ 0.6 / repair / drop) behind artifact quality.

README ToC anchor. "Host Installation Guide" pointed nowhere; retargeted to the existing Installation Guide section.