diff --git a/prompts/SYSTEM_PROMPT.md b/prompts/SYSTEM_PROMPT.md
index bad0cc0..ccdb8e0 100644
--- a/prompts/SYSTEM_PROMPT.md
+++ b/prompts/SYSTEM_PROMPT.md
@@ -111,6 +111,7 @@ Each directory represents a session by its ID. Your current session is located a
 | `${OLLIE}/s/{id}/model`   | r/w  | Active model name |
 | `${OLLIE}/s/{id}/models`  | read  | Available models from the backend |
 | `${OLLIE}/s/{id}/systemprompt` | read  | Fully rendered system prompt for this session |
+| `${OLLIE}/s/{id}/plan`        | r/w   | Session-scoped markdown checklist; survives compaction; visible to peer agents |
 | `${OLLIE}/s/{id}/tail`   | exec  | Script: runs `tail -f chat` for this session |
 
 ## Spawning an Agent