Guards

SDD capability 03: the sole phase/prompt interceptor and human approval gate before a Spec-Kit phase runs.

SDD capability 04: semantic Analyze findings, read-only run guard (best effort), Analyze result state. Execution is delegated through the Review Gate.

SDD capability 05: canonical Spec-Kit artifact inventory, hashes and the single staleness model.

SDD capability 08: evidence-based convergence state, regressions and recorded exceptions. Requests re-analysis through the Review Gate.