/validate — Canonical Validator Skill

Loop position: move 6 (prove acceptance) of the operating loop — the driving adapter for the validate_acceptance port: every Given/When/Then must map to a passing test before a bead closes.

Role: validator. Input = artifact (plan, spec, code, PR, fitness gate). Output = verdict.v1 (PASS / WARN / FAIL with rationale + findings).

Status (2026-05-08): introduced ADDITIVE in Phase 1 (m6v5.D.1 / soc-78s2v). Existing validators (councilvibe/pre-mortem/red-team/review/eval-outcomes plus retired pr-validate and validation lanes) stayed until Phase 2 shim conversion (m6v5.D.2). Fix-C smoke (soc-wb2aa) gates Phase 2.

/validate is a driving adapter for the validate_acceptance port in the Intent-to-Loop Hexagon. When the artifact contains a hexagon: block, preserve the bounded context, context packet, guard adapters, and done state in the verdict. When the artifact claims DONE/closed/green, apply the Completion-Claim Kernel before returning PASS.