diff --git a/capy/skill/gstack/captain.md b/capy/skill/gstack/captain.md
index ca946103e..4c9e7245b 100644
--- a/capy/skill/gstack/captain.md
+++ b/capy/skill/gstack/captain.md
@@ -27,8 +27,9 @@ and the Captain's drive) is the `/captain` skill and `docs/captain.md` in the gs
   - closing someone's contribution without landing it;
   - anything destructive or irreversible.
 - **Observable questions are not the person's to answer.** A question a command, a render or a measurement
-  can settle ("is the new path faster", "does the endpoint take this payload", "does the test still fail")
-  is settled by the thread: it runs the thing and reports the result. Only a product or preference call
+  can settle locally, read-only and for free ("is the new path faster", "does the test endpoint take this
+  payload", "does the test still fail") is settled by the thread: it runs the thing and reports the result.
+  A call that changes state, reaches a live system or spends money is still an ask. Only a product or preference call
   goes up, with the observation already made. A Captain that receives an observable question sends it
   back with the check that answers it instead of relaying it.
 - **What a gstack workflow does in Capy.** Launched with `GSTACK_SESSION_KIND=unattended`, a workflow takes