diff --git a/dev-claude-plugin/0020/SESSION-0020.0-TRANSCRIPT-2026-06-06T18-46--INPROGRESS.md b/dev-claude-plugin/0020/SESSION-0020.0-TRANSCRIPT-2026-06-06T18-46--INPROGRESS.md
new file mode 100644
index 0000000..0c2c630
--- /dev/null
+++ b/dev-claude-plugin/0020/SESSION-0020.0-TRANSCRIPT-2026-06-06T18-46--INPROGRESS.md
@@ -0,0 +1,23 @@
+# Session 0020.0 — Transcript
+
+> App: dev-claude-plugin
+> Start: 2026-06-06T18-46 (PST)
+> Type: coding
+> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
+>
+> This file reserves session ID 0020 for dev-claude-plugin. The driver replaces this
+> body with the full transcript and renames the file to its final
+> SESSION-0020.0-TRANSCRIPT-2026-06-06T18-46--<end>.md form at session end.
+
+## Launch prompt
+
+```
+Add a hook on session clear and exit to ensure that if a session was started, finalize has completed fully and no additional turns that need to be added to the transcript have happened (update the transcript and republish if so - understand that it may have already been published - still update it and push remotely).
+
+```
+
+## 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/dev-claude-plugin/sessions.json b/dev-claude-plugin/sessions.json
index 0b38e5e..3c3a163 100644
--- a/dev-claude-plugin/sessions.json
+++ b/dev-claude-plugin/sessions.json
@@ -55,5 +55,8 @@
   },
   "0019": {
     "title": ""
+  },
+  "0020": {
+    "title": ""
   }
 }