R14.7: Brute-force throttle

Short answer: Login and reset-password routes rate-limited by IP and username. Without a limit, a script can try a million passwords.

Group: Auth and sessions. Status: stable. Generated from the rule definitions; do not edit by hand.

Playground: https://brevio.pro/tools/agent-guard-playground?rule=R14.7

What it catches

Brute-force throttle: login and reset-password routes rate-limited by IP and username.

Why

Without a limit, a script can try a million passwords.

A bad example

app.post('/login', login);

A good example

app.post('/login', rateLimit({ perIp: 10, perUser: 5 }), login);

How it is checked

Nothing yet. No scanner and no slice card checks it: it is a standing rule for authors and reviewers.

How to silence it

A person can silence one finding with brevio-core: ignore R14.7 -- 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.

R14.8 Role-based access control
R14.1 Session token entropy
R14.2 Password hash modern algorithms
R14.3 Token expiration bounding
Every rule