fix: replace duplicate submissions while refilling queues

README.md

@@ -53,6 +53,12 @@ different candidate ordering (derived from `STRATEGY_ID`, instance ID, or
 hostname), which reduces duplicate work while the platform remains the final
 authority for account capacity and model/GPU uniqueness.
 
+If the platform reports that a model/GPU is already being validated, the claim
+is retained and the runner immediately draws replacement candidates from the
+same scan instead of retrying the duplicate every cycle. Startup logs and the
+health response expose `agent_version`; version `2026.08.02.1` or newer includes
+this behavior.
+
 ## Deploy
 
 Create a tag and submit the repository URL plus tag in "我的适配智能体".