Say how to wait: a foreground poll loop, not a detached job and a yield

Three passes in one day ended their turn on "waiting" with the rule already
in their brief. The rule named the outcome and not the mechanism, and an
agent that has started a detached job reads "wait" as "stop and be woken".
Both briefs now name the loop.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

references/briefs.md

@@ -91,7 +91,11 @@ When a cut deletes, list every rule that had a test before and has none after.
 A rule that still exists in code with its only test deleted is the failure mode
 of subtraction; either the rule goes too, or it gets a test in the same cut.
 Long jobs: wait for them and finish. Never end the turn with a to-do list in
-place of a report.
+place of a report. "Wait" means a foreground poll you run yourself: a shell
+loop that sleeps and checks the job's status file or log tail, in chunks
+short enough for the tool timeout, repeated until the job exits. Do not
+start a detached job and then end the turn expecting to be woken; nothing
+wakes you, and the tree stays mutated until Self notices.
 Mutations: restore with a reverse edit or run against committed code; `git
 checkout` also reverts uncommitted fix code and silently invalidates the run.
 The suite is a committed script under `tools/`, and its first entry is a
@@ -155,6 +159,8 @@ Report findings only.
 - Long jobs: poll the log until they finish and then report. Never end the
   turn while a build or a mutation run is still going; a turn that ends on
   "waiting for cargo" delivers no findings and has to be resumed by hand.
+  Polling is a foreground shell loop you run, in chunks under the tool
+  timeout, until the job exits; nothing wakes you if you stop.
 
 Scope: <repo> <branch>, commits <range> (base <sha>). Spec: <section>.
 

references/changelog.md

@@ -31,6 +31,12 @@ harness audit").
   Ghostlight run; the Soul brief did not, and two consecutive Soul passes on
   Cut 6b ended their turn with "waiting on the script" and had to be resumed
   by Self before any finding arrived.
+- **"Wait" now names the mechanism.** A Hands pass with the rule in its brief
+  still ended its turn on "waiting on the suite", the third such yield in one
+  day. The rule said what, not how; an agent that starts a detached job
+  reads "wait" as "stop and be woken", and nothing wakes it. Both briefs now
+  say: a foreground poll loop you run yourself, in chunks under the tool
+  timeout, until the job exits.
 
 ## 2026-09-16: record the gap, and absence is the hardest claim