diff --git a/docs/execution/briefs/implement-plan-15a.md b/docs/execution/briefs/implement-plan-15a.md
index 0e4de45d5..9cec3979c 100644
--- a/docs/execution/briefs/implement-plan-15a.md
+++ b/docs/execution/briefs/implement-plan-15a.md
@@ -7,7 +7,7 @@ RTK, issue/domain instructions, ADRs, and applicable skills. Run root Intent inv
 source edits. Do not spawn subagents. Do not touch ledger, mutate issues, merge, push, or create PR.
 
 Start from refreshed `origin/main`, require clean worktree, rename branch `codex/issue-2782-picture-fit`, revalidate live
-#2782 and all open implementation PRs, and run plan drift check. Stop on overlapping implementation or contradicted picture
+# 2782 and all open implementation PRs, and run plan drift check. Stop on overlapping implementation or contradicted picture
 contract. Historical #3168/#3088/#2794 causes remain outside this implementation and must not be claimed fixed.
 
 Strict TDD and bounded scope:
diff --git a/docs/execution/briefs/implement-plan-16.md b/docs/execution/briefs/implement-plan-16.md
index 913c3a41a..0ae0d5f26 100644
--- a/docs/execution/briefs/implement-plan-16.md
+++ b/docs/execution/briefs/implement-plan-16.md
@@ -7,7 +7,7 @@ issue/domain instructions, ADRs, and applicable skills, including test-driven-de
 matching local skill before source edits. Do not spawn subagents. Do not touch ledger, mutate issues, merge, push, or open PR.
 
 Start from refreshed `origin/main`, require clean worktree, rename branch `codex/issue-3196-editable-tables`, revalidate live
-#3196 and open PRs, and run exact drift check. Preserve merged #3438. Historical screenshot equivalence remains unverified
+# 3196 and open PRs, and run exact drift check. Preserve merged #3438. Historical screenshot equivalence remains unverified
 without source, but Q11 independently approves supported table editing.
 
 Implement one atomic TDD unit across editor/HTML/PDF: