diff --git a/makers-collective-demo/0012/SESSION-0012.0-TRANSCRIPT-2026-07-08T09-33--INPROGRESS.md b/makers-collective-demo/0012/SESSION-0012.0-TRANSCRIPT-2026-07-08T09-33--INPROGRESS.md
new file mode 100644
index 0000000..0683938
--- /dev/null
+++ b/makers-collective-demo/0012/SESSION-0012.0-TRANSCRIPT-2026-07-08T09-33--INPROGRESS.md
@@ -0,0 +1,26 @@
+# Session 0012.0 — Transcript
+
+> App: makers-collective-demo
+> Start: 2026-07-08T09-33 (PST)
+> Type: tech-design
+> Posture: careful
+> Claude-Session: d21ea733-b479-4954-9c36-dfd0fa04e9f5
+> Checkout: /Users/benstull/git/wiggleverse.org/wiggleverse/makers-collective-demo
+> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
+>
+> This file reserves session ID 0012 for makers-collective-demo. The driver replaces this
+> body with the full transcript and renames the file to its final
+> SESSION-0012.0-TRANSCRIPT-2026-07-08T09-33--<end>.md form at session end.
+
+## Launch prompt
+
+```
+/goal Let's iterate on the Market Finder module. Let's start by creating the Market Day module that it depends on. I want to really rigorously test that the Space module schema will allow this to exist and that we can create an authoring experience with fake data that allows users to create complex interdependent modules like this
+
+```
+
+## 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/makers-collective-demo/sessions.json b/makers-collective-demo/sessions.json
index 717318e..575794d 100644
--- a/makers-collective-demo/sessions.json
+++ b/makers-collective-demo/sessions.json
@@ -31,5 +31,8 @@
   },
   "0011": {
     "title": ""
+  },
+  "0012": {
+    "title": ""
   }
 }