Catches the mistakes coding agents repeat before they merge: a pull-request gate with no model call and no API key.
Short answer: Clear intervals on unmount and stop polling on terminal states. A poll that is never stopped keeps calling the server after the user has left.
Group: UI and mobile performance. Status: stable. Generated from the rule definitions; do not edit by hand.
Playground: https://brevio.pro/tools/agent-guard-playground?rule=R1.8
Async polling hygiene: clear intervals on unmount and stop polling on terminal states.
A poll that is never stopped keeps calling the server after the user has left.
useEffect(() => { setInterval(poll, 1000); }, []);
useEffect(() => { const t = setInterval(poll, 1000); return () => clearInterval(t); }, []);
A person can silence one finding with brevio-core: ignore R1.8 -- reason on the line or the line above. Without the reason it does not count. An agent cannot silence it: the agent hook and the MCP tools never honour the comment, and a pull request that adds one is reported until a reviewer allows it. Fixing the code is still the better answer.
To change what the rule flags, edit its definition in dev_rules.py or code_rules/__init__.py. That is a code change and is reviewed like one.