diff --git a/debug/SKILL.md b/debug/SKILL.md
index 60461e1..bddc15b 100644
--- a/debug/SKILL.md
+++ b/debug/SKILL.md
@@ -81,7 +81,7 @@ RED+GREEN at the end of mini-mode).
 |-------|---------|
 | `red_test_path` | absolute path to the failing test file — minimal and autonomous (Phase 3) |
 | `cause_summary` | 1-2 sentences naming the file + function + why |
-| `constraint` | `"minimal fix, no surrounding cleanup"` |
+| `constraint` | `"minimal fix, no surrounding cleanup, no opportunistic refactor"` |
 
 Anything else (broader refactor, doc rewrite, new feature) is
 OUT of scope for the bug-fix iteration and gets queued for a