Catches the mistakes coding agents repeat before they merge: a pull-request gate with no model call and no API key.
Short answer: Route handlers return typed NextResponse with status. An untyped handler returns whatever it returns, with a status nobody chose.
Group: React and Next.js patterns. Status: stable. Generated from the rule definitions; do not edit by hand.
Playground: https://brevio.pro/tools/agent-guard-playground?rule=R17.8
Route handler return typing: route handlers return typed NextResponse with status.
An untyped handler returns whatever it returns, with a status nobody chose.
export async function GET() { return Response.json(data); }
export async function GET(): Promise<NextResponse<Data>> { return NextResponse.json(data, { status: 200 }); }
A person can silence one finding with brevio-core: ignore R17.8 -- 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.