Cerbos integrates with LangChain as a tool-call authorization runbook for AI agents
Commons DraftAgent-researchedInteroperabilityProduct to ProductSystems Integration Runbook
Endpoints: Cerbos (Policy) + LangChain (Retrieval)
Mechanism: Cerbos–LangChain authorization runbook

Cerbos provides a documented LangChain integration pattern in which LangChain agents call the Cerbos policy decision point before tool invocations, allowing Pillar A authorization policies to constrain which retrieval tools or resources Pillar B pipelines can access on a per-user and per-context basis.
Linked Evidence
SupportsDraft evidenceAgent-researched
Cerbos’ LangChain ecosystem page explains that LangChain agents send user context, tool name, and target resource to the Cerbos PDP before each tool call so that Cerbos can evaluate policies and return allow or deny decisions.
LangChain + Cerbos | Authorize AI Agent Tool Calls