diff --git a/docs/README.md b/docs/README.md
index 5161ea5..96da327 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -11,7 +11,6 @@
 | Showcase quality backlog | [showcase-quality-backlog.md](/home/hartmut/Documents/Copilot/capakraken/docs/showcase-quality-backlog.md) | Consolidated working backlog for the current quality and maintainability north star |
 | Parallel worktree hygiene | [parallel-worktree-hygiene.md](/home/hartmut/Documents/Copilot/capakraken/docs/parallel-worktree-hygiene.md) | Keep parallel worker slices isolated and the worktree reviewable |
 | Target CI/CD architecture | [cicd-target-architecture.md](/home/hartmut/Documents/Copilot/capakraken/docs/cicd-target-architecture.md) | Canonical image-based build, deploy, and rollback flow |
-| Parallel worktree hygiene | [parallel-worktree-hygiene.md](/home/hartmut/Documents/Copilot/capakraken/docs/parallel-worktree-hygiene.md) | Lightweight guardrail for shared dirty worktrees and parallel worker scopes |
 | Active roadmap and open gaps | [product-roadmap.md](/home/hartmut/Documents/Copilot/capakraken/docs/product-roadmap.md) | Primary backlog and current delivery order |
 | Estimating system design | [estimating-extension-design.md](/home/hartmut/Documents/Copilot/capakraken/docs/estimating-extension-design.md) | Workbook analysis, field mapping, and implementation plan |
 | Dispo import implementation | [dispo-import-implementation.md](/home/hartmut/Documents/Copilot/capakraken/docs/dispo-import-implementation.md) | Clean-slate Dispo v2 import design, mapping rules, staging flow, and commit policy |
diff --git a/docs/parallel-worktree-hygiene.md b/docs/parallel-worktree-hygiene.md
index 51954ca..134e63b 100644
--- a/docs/parallel-worktree-hygiene.md
+++ b/docs/parallel-worktree-hygiene.md
@@ -50,6 +50,14 @@ pnpm worktree:hygiene -- --fail-on-dirty
 
 Use `--json` when another tool or agent should consume the output programmatically.
 
+The helper is also covered by the repo-level script test suite:
+
+```bash
+pnpm test:scripts
+```
+
+That suite runs in CI before the architecture and import/export guardrails so hygiene regressions fail early.
+
 ## Parallel-Worker Rules
 
 1. Pick an explicit ownership scope before editing files.
diff --git a/docs/showcase-quality-backlog.md b/docs/showcase-quality-backlog.md
index 8060166..5ada784 100644
--- a/docs/showcase-quality-backlog.md
+++ b/docs/showcase-quality-backlog.md
@@ -36,6 +36,8 @@ This backlog consolidates the still-relevant work from:
 Already materially improved:
 
 - SSE audience scoping is under CI guardrails.
+- repo script guardrails are now test-backed in CI
+- critical narrow ownership surfaces now have explicit `maxLines` architecture checks
 - runtime secret handling is environment-first
 - assistant-tool and several router monoliths were decomposed
 - image-based CI/CD and deploy flow exists