When one team builds an agent, governance is easy. When fifty teams build agents in fifty AWS accounts, you need to set rules once and have them apply everywhere, share vetted tools instead of rebuilding, and see and audit it all from one place, without slowing the teams down. That operating model is AWS Organizations plus AgentCore's governance layer.
New to these words? Read chapter 02. Related: Registry (chapter 25), Policy (chapter 23), Observability (chapter 19), Multi-tenant (chapter 32).Left alone, teams build overlapping agents and tools in separate accounts, with inconsistent security and no shared view. The fix is a central operating model: guardrails that apply to every account, a shared catalog of approved tools and agents, central rules on what agents may do, and one place to audit cost and behavior, while each team keeps its own account to move fast.
The org root. SCPs and billing.
Org CloudTrail, security tooling.
Central, locked-down logs.
Central CloudWatch, one pane of glass.
The central Registry and Gateway.
SCPs decide which models accounts may use; Amazon Bedrock Organizations policies enforce Bedrock Guardrails across all accounts.
One org-wide Agent Registry (preview): teams publish agents, tools, and MCP servers; a curator approves; everyone discovers and reuses.
Cedar policies at the Gateway allow or deny each tool call; deploy the same policies to every account (IaC).
AgentCore resource-based policies give central, resource-level control over who can call a Runtime or endpoint, and under what conditions.
A central monitoring account uses CloudWatch cross-account observability to pull traces, sessions, metrics, and logs from every workload account, so you watch all agents in one console (linked org-wide through AWS Organizations). Pair it with an organization CloudTrail for a complete audit trail and cost-allocation tags per team and tenant, so spend and behavior are visible and attributable across the whole estate.