Catches the mistakes coding agents repeat before they merge: a pull-request gate with no model call and no API key.
Short answer: No duplicate route group paths. Two route files for one path means one of them is never reached.
Group: Architecture and contracts. Status: stable. Generated from the rule definitions; do not edit by hand.
Playground: https://brevio.pro/tools/agent-guard-playground?rule=R7.3
Single canonical route per path: no duplicate route group paths.
Two route files for one path means one of them is never reached.
app/(a)/pricing/page.tsx and app/(b)/pricing/page.tsx
app/(marketing)/pricing/page.tsx
A person can silence one finding with brevio-core: ignore R7.3 -- 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.