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brin is the credit score for context — pre-scanning packages, MCP servers, repositories, skills, and web pages for malware, prompt injection, and supply chain attacks. free and open.

##securing context, not agents

the default approach to agent security is guardrails — restricting what the agent can do. block certain tools, sandbox file access, limit network calls. it works, but it cripples the agent. the more you constrain it, the less useful it becomes.

brin takes a different approach. let agents be as unconstrained as possible — and instead score every piece of external context they interact with. the risk was never the agent. it's the external context the agent trusts by default.

secure the context, not the agent. you get safety without sacrificing capability.

##how it works

before your agent acts on any external context, make a single GET request. brin returns a score, verdict, and any detected threats in under 10ms. no SDK, no auth, no signup required.

if brin is unreachable, the agent continues as normal — zero risk to your existing workflow.