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Bedrock Agentcore Control  >  Structures  >  Policy

Policy

Structure Class

Policy dataclass

Represents a complete policy resource within the AgentCore Policy system. Policies are ARN-able resources that contain Cedar policy statements and associated metadata for controlling agent behavior and access decisions. Each policy belongs to a policy engine and defines fine-grained authorization rules that are evaluated in real-time as agents interact with tools through Gateway. Policies use the Cedar policy language to specify who (principals based on OAuth claims like username, role, or scope) can perform what actions (tool calls) on which resources (Gateways), with optional conditions for attribute-based access control. Multiple policies can apply to a single request, with Cedar's forbid-wins semantics ensuring that security restrictions are never accidentally overridden.

Attributes

created_at instance-attribute
created_at: datetime

The timestamp when the policy was originally created. This is automatically set by the service and used for auditing and lifecycle management.

definition instance-attribute
definition: PolicyDefinition

The Cedar policy statement that defines the access control rules. This contains the actual policy logic used for agent behavior control and access decisions.

description class-attribute instance-attribute
description: str | None = field(repr=False, default=None)

A human-readable description of the policy's purpose and functionality. Limited to 4,096 characters, this helps administrators understand and manage the policy.

enforcement_mode class-attribute instance-attribute
enforcement_mode: EnforcementMode = EnforcementMode('ACTIVE')

The current enforcement mode of the policy.

name instance-attribute
name: str

The customer-assigned immutable name for the policy. This human-readable identifier must be unique within the account and cannot exceed 48 characters.

policy_arn instance-attribute
policy_arn: str

The Amazon Resource Name (ARN) of the policy. This globally unique identifier can be used for cross-service references and IAM policy statements.

policy_engine_id instance-attribute
policy_engine_id: str

The identifier of the policy engine that manages this policy. This establishes the policy engine context for policy evaluation and management.

policy_id instance-attribute
policy_id: str

The unique identifier for the policy. This system-generated identifier consists of the user name plus a 10-character generated suffix and serves as the primary key for policy operations.

status instance-attribute
status: PolicyStatus

The current status of the policy.

status_reasons instance-attribute
status_reasons: list[str]

Additional information about the policy status. This provides details about any failures or the current state of the policy lifecycle.

updated_at instance-attribute
updated_at: datetime

The timestamp when the policy was last modified. This tracks the most recent changes to the policy configuration or metadata.