diff --git a/.specify/memory/constitution.md b/.specify/memory/constitution.md
index a83f4cd6..384af66b 100644
--- a/.specify/memory/constitution.md
+++ b/.specify/memory/constitution.md
@@ -1,34 +1,54 @@
 <!--
-Sync Impact Report - Feature 022 Review
-Review Date: 2025-10-08
-Version: 1.0.1 (no changes)
-Reviewed For: Feature 022 - User Avatar Upload
-
-Constitutional Alignment:
-  ✅ I. Component Structure Compliance - AvatarUpload/AvatarDisplay follow 5-file pattern
-  ✅ II. Test-First Development - Tasks include TDD workflow (tests before implementation)
-  ✅ III. PRP Methodology - Feature using /specify → /plan → /tasks → /implement workflow
-  ✅ IV. Docker-First Development - All development in Docker containers
-  ✅ V. Progressive Enhancement - Client-side crop, progressive upload, offline capable
-  ✅ VI. Privacy & Compliance First - RLS policies, user consent, GDPR compliance
+Sync Impact Report - v1.0.2 Amendment (Wireframe Gate Hardening)
+Review Date: 2026-05-06
+Version: 1.0.1 → 1.0.2 (MINOR amendment — Principle III hardening)
+Reviewed For: Issue #73 — promote wireframe step to a hard gate
+
+Amendment Summary:
+  Principle III ("PRP Methodology") was previously silent on the wireframe
+  step, treating wireframe authoring as an optional hook absorbed into the
+  Developer/UIDesigner roles. The 2026-05-02 strategy session (operator
+  decision; see ~/.claude/plans/trying-to-decide-on-gleaming-kitten.md)
+  promoted wireframes to a hard gate between /speckit.clarify and
+  /speckit.plan for all web/RN/KDG/Drupal tracks. Unity remains exempt
+  (game scenes are mocked in-Editor, not via SVG).
+
+  This amendment bakes that decision into the constitution as the
+  source-of-truth so the rest of the GrimGlow IP family (RN ScriptHammer,
+  KDG-stack, Headless Drupal templates) inherits the hardened gate when
+  each track's v1.0.0 ratifies.
+
+Constitutional Alignment (re-checked at v1.0.2):
+  ✅ I. Component Structure Compliance — unchanged
+  ✅ II. Test-First Development — unchanged
+  ⬆ III. PRP Methodology — HARDENED. Cascade now mandates the wireframe
+      gate; pure-infra PRPs ship a "no UI" stub rather than skipping.
+  ✅ IV. Docker-First Development — unchanged
+  ✅ V. Progressive Enhancement — unchanged
+  ✅ VI. Privacy & Compliance First — unchanged
 
 Template Consistency:
-  ✅ .specify/templates/plan-template.md - Constitution Check section present (lines 30-34)
-  ✅ .specify/templates/spec-template.md - User story/requirements structure aligns
-  ✅ .specify/templates/tasks-template.md - PRP workflow and phase organization present
-  ✅ .specify/templates/commands/*.md - No command templates found (expected)
-
-Action Items:
-  ⚠️  specs/022-on-the-account/plan.md:43 - Incorrectly states "(template only - no project-specific constitution)"
-      Should read: "ScriptHammer Constitution v1.0.1 (6 core principles)"
-
-Version Decision: No version bump required
-  - No principles modified, added, or removed
+  ☐ .specify/templates/plan-template.md — review for cascade reference
+  ☐ .specify/templates/spec-template.md — review for cascade reference
+  ☐ .specify/templates/tasks-template.md — review for cascade reference
+  ☐ .specify/templates/commands/*.md — verify no command file references
+      the old "wireframes optional" framing
+
+Family Propagation (informational):
+  - GrimGlow Phase 1 constitution v1.0.1 — already shipped
+    (TortoiseWolfe/GrimGlow_planning commit 2466343)
+  - Unity GrimGlow constitution — EXEMPT (Unity track stays at v1.0.1
+    on this dimension; in-Editor mocking is the wireframe equivalent)
+  - RN ScriptHammer / KDG-stack / Headless Drupal — inherit the v1.0.2
+    cascade when each track's v1.0.0 ratifies
+
+Version Decision: MINOR bump to v1.0.2
+  - Principle III text changed; cascade newly enumerated
+  - No principles added or removed
   - No governance changes
-  - Review confirms existing constitution fully covers Feature 022 requirements
-  - Constitution v1.0.1 remains current (ratified 2025-09-20, last amended 2025-09-25)
-
-Follow-up: None - constitution is complete and aligned
+  - Workspace ~/repos/CLAUDE.md cite updated v1.0.1 → v1.0.2
+  - Strategy plan ~/.claude/plans/trying-to-decide-on-gleaming-kitten.md
+    cite updated v1.0.1 → v1.0.2
 -->
 
 # ScriptHammer Constitution
@@ -51,12 +71,37 @@ comprehensive test suites. E2E tests via Playwright for user workflows.
 Accessibility tests using Pa11y for WCAG compliance. Tests run on pre-push
 via Husky hooks.
 
-### III. PRP Methodology (Product Requirements Prompts)
-
-Features are implemented using the PRP workflow: define requirements in a PRP
-document, execute /plan command for technical planning, execute /tasks for
-task generation, then implement. Each PRP tracks from inception to completion
-with clear success criteria. PRPs supersede ad-hoc feature development.
+### III. PRP Methodology with Mandatory Wireframe Gate
+
+Features are implemented using the PRP workflow as a hard, ordered cascade.
+The wireframe authoring + review step is a **mandatory gate** between
+clarification and planning — it is NOT an optional hook absorbed into a
+role. Pure-infrastructure PRPs (no UI surface, no API visualization) ship a
+"no UI" wireframe stub for explicitness rather than skipping the step.
+
+The cascade is:
+
+```
+PRP → /speckit.specify → /speckit.clarify
+    → /speckit.wireframe.generate → /speckit.wireframe.review     [HARD GATE]
+    → /speckit.plan → /speckit.checklist → /speckit.tasks
+    → /speckit.analyze → /speckit.implement
+    → /speckit.wireframe.screenshots                              [post-implement regression]
+```
+
+**Why a hard gate:** the 2026-05-02 strategy session confirmed (via
+operator practice on the Unity track without mockups) that the discipline
+matters even where the step has been treated as optional. Promoting the
+gate to mandatory eliminates the "I'll skip wireframes for this one"
+exception that erodes the discipline over time. Each PRP tracks from
+inception to completion with clear success criteria. PRPs supersede ad-hoc
+feature development.
+
+**Track exemption:** Unity tracks are exempt from this gate. Unity's
+in-Editor scene mocking serves the same purpose as SVG wireframes for web
+work; the SVG validator does not apply to Unity prefabs/scenes. All
+non-Unity tracks (web/RN/KDG/Drupal) inherit this hardened gate when their
+constitution ratifies at v1.0.0.
 
 ### IV. Docker-First Development
 
@@ -194,4 +239,46 @@ The constitution supersedes all other practices. Violations must be justified
 with documented rationale. Temporary exceptions require sprint constitution.
 Use CLAUDE.md for runtime development guidance specific to AI assistance.
 
-**Version**: 1.0.1 | **Ratified**: 2025-09-20 | **Last Amended**: 2025-09-25
+**Version**: 1.0.2 | **Ratified**: 2025-09-20 (v1.0.1) | **Last Amended**: 2026-05-06 (v1.0.2)
+
+## Amendment Log
+
+### v1.0.2 — 2026-05-06 — Wireframe Gate Hardening
+
+**Scope:** Principle III (PRP Methodology).
+
+**Change:** Promoted the wireframe authoring + review step from an
+implicit role-absorbed hook to an explicit mandatory gate between
+`/speckit.clarify` and `/speckit.plan`. Enumerated the full cascade in
+Principle III. Added explicit handling for pure-infrastructure PRPs ("no
+UI" stub instead of skipping) and an explicit Unity track exemption.
+
+**Rationale:** Per the 2026-05-02 strategy session
+(`~/.claude/plans/trying-to-decide-on-gleaming-kitten.md`), operator
+practice on the Unity track without mockups confirmed the discipline
+matters even where it had been treated as optional. The
+`.specify/extensions/wireframe/` toolchain (6 skills, validator, viewer)
+already exists and is in use; the constitution was lagging the practice.
+This amendment closes that gap and propagates the hardened gate to the
+rest of the GrimGlow IP family (RN ScriptHammer, KDG-stack, Headless
+Drupal) when each track's v1.0.0 ratifies.
+
+**Impact:** No code changes required. Existing PRPs already follow this
+cascade in practice (see `features/CLAUDE.md` workflow documentation).
+This amendment is the source-of-truth alignment.
+
+**Family propagation:**
+
+- GrimGlow Phase 1 constitution v1.0.1 — already shipped
+  (TortoiseWolfe/GrimGlow_planning commit 2466343)
+- Unity GrimGlow constitution — exempt; stays at v1.0.1 on this dimension
+- RN ScriptHammer / KDG-stack / Headless Drupal — inherit when each
+  track's v1.0.0 ratifies
+
+### v1.0.1 — 2025-09-25
+
+(Pre-amendment-log baseline; no scope recorded in this format.)
+
+### v1.0.0 — 2025-09-20
+
+Constitution ratified.