diff --git a/sessions/0063/SESSION-0063.0-TRANSCRIPT-2026-07-01T18-49--INPROGRESS.md b/sessions/0063/SESSION-0063.0-TRANSCRIPT-2026-07-01T18-49--INPROGRESS.md
new file mode 100644
index 0000000..ec0a1ac
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+++ b/sessions/0063/SESSION-0063.0-TRANSCRIPT-2026-07-01T18-49--INPROGRESS.md
@@ -0,0 +1,26 @@
+# Session 0063.0 — Transcript
+
+> App: vscode-cowriting-plugin
+> Start: 2026-07-01T18-49 (PST)
+> Type: brainstorming
+> Posture: careful
+> Claude-Session: 1a8fc96b-6f36-4102-be7b-decb53251b2b
+> Checkout: /Users/benstull/git/benstull.org/benstull/vscode-cowriting-plugin-s0063
+> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
+>
+> This file reserves session ID 0063 for vscode-cowriting-plugin. The driver replaces this
+> body with the full transcript and renames the file to its final
+> SESSION-0063.0-TRANSCRIPT-2026-07-01T18-49--<end>.md form at session end.
+
+## Launch prompt
+
+```
+Examine the existing vs plugin, the prototype, and the half-baked spec that I used Opus to create and make a recommendation for a VS Code experience that allows humans and machines to collaborate on a document, with the machine making suggestions based on human input and the human able to approve, reject, or modify those suggestions. This should use as many VS Code UX paradigms as possible, use as many existing VS Code components or extensions, but create custom components/UX when needed. You can assume this is just Claude as the 'machine' to start
+
+```
+
+## 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/sessions/sessions.json b/sessions/sessions.json
index c761eb4..75b8fc7 100644
--- a/sessions/sessions.json
+++ b/sessions/sessions.json
@@ -184,5 +184,8 @@
   },
   "0062": {
     "title": ""
+  },
+  "0063": {
+    "title": ""
   }
 }