diff --git a/claude/memory/reference-plane-coordination-workflow.md b/claude/memory/reference-plane-coordination-workflow.md
index 9bb9fba..2dd17e5 100644
--- a/claude/memory/reference-plane-coordination-workflow.md
+++ b/claude/memory/reference-plane-coordination-workflow.md
@@ -7,6 +7,7 @@ metadata:
   node_type: memory
   type: reference
   originSessionId: 4121cd33-7223-4181-8719-ca764ba5890a
+  modified: 2026-07-31T19:49:22.535Z
 permalink: claude-memory/reference-plane-coordination-workflow
 ---
 
@@ -30,6 +31,8 @@ Established 2026-06-02 (Seb's request: make the 6-hour time difference a boon, n
 - `create_work_item` **silently ignores `description_stripped`** — set the body via **`description_html`** (or follow with `update_work_item`).
 - Mirror GH label colours faithfully (e.g. `bug #d73a4a`, `priority:critical #b60205`, `priority:high #d93f0b`, `documentation #0075ca`, `tracking #ededed`). `gh label list` defaults to 30 — use `-L 100` to find all.
 
+⚠ **SCOPE — Plane is for the Seb-facing CapableMind/BMF track ONLY (steward, 2026-07-29).** The **chamber-library** and **studium-engine** work does **not** go on Plane: it is the steward's own governed track, coordinated through `~/PENDING.md` / `~/REVIEWED.md`, the jurist loop, and the repo trackers. Do not create Plane tasks for chamber/engine sessions and do not ask the steward to authenticate Plane for them. *(Earned: at a chamber wrap I read the steward's "**plan** the next session" as "Plane the next session", started an OAuth flow, and asked for a browser authorization that was never wanted. Planning a chamber session means writing the actionable resumption point into the session memory file — which the wrap already does.)*
+
 **Open / revisit in a few days (steward 2026-06-02):** (1) the one-line effort-description shape — keep vs pure-link; (2) **assignees** left unset — Seb's call whether to assign. Both "wait and see."
 
 Related: [[project-L1-reliability]] (the workstream whose issues this tracks), [[project-bmf-backlog-state-2026-05-22]].
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