diff --git a/INBOX.md b/INBOX.md
index 7c369e2..d4635b7 100644
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+++ b/INBOX.md
@@ -50,3 +50,4 @@ Example:
 - [ ] (keysat) [feature][P2] ability to reorder entitlements catalog on edit products view — via matrix, 2026-06-18
 - [ ] (spark-control) [idea][P2] we should redesign the software logo/icon (used for startos service).. it doesn't really relate to anything, though the color scheme seems to match — via matrix, 2026-06-18
 - [ ] (spark-control) [feature][P2] Add a dashboard card for the ten31 CRM / intake bot (Update/Restart/Stop/Logs tile like matrix-bridge) — confirm whether already done; see ten31-database docs/handoffs/add-intake-bot-to-spark-control.md, 2026-06-18
+- [ ] (proof-of-work) [feature][P2] brainstorm better tracking of cardio logging and cardio program planning (in-week variety and long term programs) — via matrix, 2026-06-19