diff --git a/docs/RUST.md b/docs/RUST.md
index 60cd92e..e85bf2c 100644
--- a/docs/RUST.md
+++ b/docs/RUST.md
@@ -7501,6 +7501,13 @@ size.
 
 ### Venus went away for an hour, and nothing said so (2026-09-08)
 
+**The machine-wide version of this is the `this-machine-graphics`
+skill**, written the same day so an agent in any repo gets it: what this
+VM's GPU is, the probe that asks it what it supports, this outage's
+signature, the wgpu-on-Venus teardown crash, and the rule about never
+`.expect()`ing a `PRIMARY` adapter. What stays here is the part specific
+to iris and to this port.
+
 **It came back on its own and nothing in the host config changed.** Iris
 asked whether something had, since she still passes Venus as true. What
 happened, and what was ruled out, so the next occurrence is not