diff --git a/docs/superpowers/plans/2026-06-10-adr-structure.md b/docs/superpowers/plans/2026-06-10-adr-structure.md
index f057a73..ea83f2b 100644
--- a/docs/superpowers/plans/2026-06-10-adr-structure.md
+++ b/docs/superpowers/plans/2026-06-10-adr-structure.md
@@ -230,24 +230,23 @@ Accepted (YYYY-MM-DD)
 
 <!-- Results, trade-offs explicitly accepted, follow-on work. -->
 
-<!-- OPTIONAL SECTIONS — uncomment any that genuinely apply; never pad.
-## Scope
-<!-- Explicit in / out-of-scope boundaries. -->
+<!-- Optional sections — uncomment any that genuinely apply; never pad:
 
-## Guardrails
-<!-- How the decision is mechanically enforced (lint, CI, hooks). -->
+## Scope — explicit in / out-of-scope boundaries.
 
-## What was ruled out
-<!-- Rejected alternatives, each with its reason. -->
+## Guardrails — how the decision is mechanically enforced (lint, CI, hooks).
 
-## Verified facts (ADR-014)
-<!-- verified: <subject> · <tool> <version> · <source> · <YYYY-MM-DD> -->
+## What was ruled out — rejected alternatives, each with its reason.
 
-## Related
-<!-- Links to other ADRs by number; bidirectional for Supersedes/Superseded-by. -->
+## Verified facts (ADR-014) — verified: <subject> · <tool> <version> · <source> · <YYYY-MM-DD>
+
+## Related — links to other ADRs by number; bidirectional for Supersedes/Superseded-by.
 -->
 ```
 
+(HTML comments do not nest — optional sections use one flat comment block with inline
+em-dash descriptions, not commented sub-hints inside an outer comment.)
+
 - [ ] **Step 2: Confirm the template is skipped by the check**
 
 Run: `python3 scripts/repo-scan.py 2>/dev/null | python3 -c "import json,sys; print([f for f in json.load(sys.stdin)['findings'] if f['check']=='adr-structure' and 'adr-template' in f['path']])"`