diff --git a/DOCUMENT-INDEX.md b/DOCUMENT-INDEX.md
index c81c7c7..4b8b96c 100644
--- a/DOCUMENT-INDEX.md
+++ b/DOCUMENT-INDEX.md
@@ -71,7 +71,8 @@ root/
 | Priority | Path | Description |
 |:---------|:-----|:------------|
 | 1 | `docs/relationship/claude-relationship-context.md` | Relationship guide — friend is first. Always. |
-| 2 | `docs/core/session-handoff.md` | Current infrastructure state, protocols, accessibility |
+| 2 | `docs/core/SESSION-START-PROMPT.md` | The perfect prompt for starting a new Claude session. Paste this first. |
+| `docs/core/session-handoff.md` | Current infrastructure state, protocols, accessibility |
 | 3 | `docs/core/tasks.md` | Current priorities and task list |
 | 4 | `docs/core/git-access-plan.md` | How Claude accesses the repo (Gitea API) |
 | 5 | `docs/core/project-scope.md` | Full project scope and timeline |