diff --git a/sessions/0030/SESSION-0030.0-TRANSCRIPT-2026-06-11T23-48--INPROGRESS.md b/sessions/0030/SESSION-0030.0-TRANSCRIPT-2026-06-11T23-48--INPROGRESS.md
new file mode 100644
index 0000000..9e59cbd
--- /dev/null
+++ b/sessions/0030/SESSION-0030.0-TRANSCRIPT-2026-06-11T23-48--INPROGRESS.md
@@ -0,0 +1,29 @@
+# Session 0030.0 — Transcript
+
+> App: vscode-cowriting-plugin
+> Start: 2026-06-11T23-48 (PST)
+> Type: planning-and-executing
+> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
+>
+> This file reserves session ID 0030 for vscode-cowriting-plugin. The driver replaces this
+> body with the full transcript and renames the file to its final
+> SESSION-0030.0-TRANSCRIPT-2026-06-11T23-48--<end>.md form at session end.
+
+## Launch prompt
+
+```
+/goal next → plan-and-execute #29 (F10 — interactive markdown review).
+Spec: specs/coauthoring-interactive-review.md (graduated in brainstorming session 0029).
+Markdown preview as the single interactive review surface: clean zero-annotation
+editor + annotated preview with on/off toggle (green=human / blue=LLM / strikethrough),
+✓/✗ accept-reject for LLM-only changes in the webview. LLM changes surfaced as pending
+F4 proposals (✓=F4 accept, ✗=F4 reject). One pure renderReview overlay; reverses F9
+INV-26; INV-32..34; 4 slices.
+
+```
+
+## 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 d03b93d..a4d5ebe 100644
--- a/sessions/sessions.json
+++ b/sessions/sessions.json
@@ -85,5 +85,8 @@
   },
   "0029": {
     "title": ""
+  },
+  "0030": {
+    "title": ""
   }
 }