Replace plan-phase.md §5.6 (a 6-branch inline UI gate) with a capability-driven
loop.render-hooks plan:pre dispatch — the FIRST gate dispatch in any workflow.
A step (ui-phase, when:workflow.ui_phase) + a new blocking gate
(when:workflow.ui_safety_gate). New ui.plan-gate check verb returns
{frontend, hasUiSpec, block}; the dispatch runs it unconditionally then fires
the active step (pipeline) or halts on the active blocking gate (manual). The
gate-handling (run check.query; halt if blocking+block) is the reusable
phase-6 template for blocking-gate cutovers.
Config semantics fixed per #1022 + maintainer call: ui_phase gates plan-time
UI-SPEC generation, ui_safety_gate gates the planning block. Common case + all
ui_phase=false cases are equivalence-preserving; the one intended change is
{ui_phase:true, ui_safety_gate:false} now auto-generating in pipelines.
Review found it broken twice (non-generic dispatch, phase-lookup divergence,
then the step-only check nested in a gate loop) — fixed; final Codex pass
verified all 8 (ui_phase,ui_safety_gate)x{pipeline,manual} cases correct.
gsd-ui-phase skill + autonomous §3a.5 untouched (§3a.5 deferred).
getRoadmapPhaseWithFallback mirrors cmdRoadmapGetPhase for lookup parity.
Closes#1026
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