diff --git a/prism/NOTES-PTAS b/prism/NOTES-PTAS
index 6b0d94f6..4a583bcd 100644
--- a/prism/NOTES-PTAS
+++ b/prism/NOTES-PTAS
@@ -4,6 +4,8 @@ TODO (before any release)
 
 * GUI
 
+* Tidy prism-examples/pta, incl. delete brp
+
 * Clarify semantic/type checks (consistency with games/digital)
 
 * Check guards/invariants for convexity (for now, neither can be non-convex, see below)