diff --git a/flotilla-core/0005/SESSION-0005.0-TRANSCRIPT-2026-06-10T22-06--INPROGRESS.md b/flotilla-core/0005/SESSION-0005.0-TRANSCRIPT-2026-06-10T22-06--INPROGRESS.md
new file mode 100644
index 0000000..a757c5f
--- /dev/null
+++ b/flotilla-core/0005/SESSION-0005.0-TRANSCRIPT-2026-06-10T22-06--INPROGRESS.md
@@ -0,0 +1,21 @@
+# Session 0005.0 — Transcript
+
+> App: flotilla-core
+> Start: 2026-06-10T22-06 (PST)
+> Type: capture
+> Claude-Session: b28c1e48-13ab-4793-bae2-377ae276a0d8
+> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
+>
+> This file reserves session ID 0005 for flotilla-core. The driver replaces this
+> body with the full transcript and renames the file to its final
+> SESSION-0005.0-TRANSCRIPT-2026-06-10T22-06--<end>.md form at session end.
+
+## Launch prompt
+
+_(launch prompt not captured at claim time)_
+
+## Deferred decisions
+
+_Autonomous-mode low-confidence calls the driver made and would have
+liked operator input on. Appended as the session runs; surfaced at
+finalize. Empty if none._
diff --git a/flotilla-core/sessions.json b/flotilla-core/sessions.json
index 39092c0..787e905 100644
--- a/flotilla-core/sessions.json
+++ b/flotilla-core/sessions.json
@@ -10,5 +10,8 @@
   },
   "0004": {
     "title": ""
+  },
+  "0005": {
+    "title": ""
   }
 }