diff --git a/.claude/commands/wiki-compile.md b/.claude/commands/wiki-compile.md
index 6a86c1eb..1ce557a3 100644
--- a/.claude/commands/wiki-compile.md
+++ b/.claude/commands/wiki-compile.md
@@ -368,6 +368,8 @@ into a conflict, and no synthesis lands in the live article without a review.
 
 **5.0 Claim a per-article coord lock** (via the `coord` skill):
 `lock claim claudetools wiki/<type>/<slug> "wiki-compile <slug>" --ttl 1`.
+- **Capture the returned lock ID** — the claim prints `[coord] lock id=<uuid> ...`. Save it
+  (`LOCK_ID=<uuid>`); the release in Phase 6 takes the **lock ID, not the resource path**.
 - The TTL auto-evicts a dead session's lock (no permanent stranding).
 - If the lock is **already held** → emit `[SKIP] wiki/<type>/<slug> is being compiled on
   another machine; try again shortly` and exit cleanly.