AWS::BedrockAgentCore::Harness

BedrockAgentCore Harness

Definition of AWS::BedrockAgentCore::Harness resource type - a managed agentic loop service that provides a turnkey solution for running stateful, tool-equipped AI agents.

Properties

17 configurable properties. 3 required. Click a row to see details.

Filter:

Property	Type	Flags
`ExecutionRoleArn`	`string`	Required
`HarnessName`	`string`	RequiredCreate-only
`Model`	`HarnessModelConfiguration`	Required
`AllowedTools`	`Array<string>`
`AuthorizerConfiguration`	`AuthorizerConfiguration`
`Environment`	`HarnessEnvironmentProvider`
`EnvironmentArtifact`	`HarnessEnvironmentArtifact`
`EnvironmentVariables`	`object`
`MaxIterations`	`integer`
`MaxTokens`	`integer`
`Memory`	`HarnessMemoryConfiguration`
`Skills`	`Array<HarnessSkill>`
`SystemPrompt`	`Array<HarnessSystemContentBlock>`
`Tags`	`Array<Tag>`
`TimeoutSeconds`	`integer`
`Tools`	`Array<HarnessTool>`
`Truncation`	`HarnessTruncationConfiguration`

Return Values

Values returned after the resource is created. Access these with Fn::GetAtt.

Attribute	Type	Description
`Arn`	`string`	The Amazon Resource Name (ARN) of the harness.
`CreatedAt`	`string`	The timestamp when the harness was created.
`HarnessId`	`string`	The unique identifier of the harness.
`Status`	`string`	The current status of the harness.
`UpdatedAt`	`string`	The timestamp when the harness was last updated.

Sample CloudFormation Template

A minimal template with required properties and common optional ones.

template.yaml

AWSTemplateFormatVersion: "2010-09-09"
Description: Sample template for AWS::BedrockAgentCore::Harness

Resources:
  MyResource:
    Type: AWS::BedrockAgentCore::Harness
    Properties:
      HarnessName: "arn:aws:service:region:account:resource"
      ExecutionRoleArn: "arn:aws:service:region:account:resource"
      Model: "value"
      Tags:
        - Key: Environment
          Value: Production

Required IAM Permissions

Permissions CloudFormation needs in your IAM role to manage this resource.

create

bedrock-agentcore:CreateAgentRuntimebedrock-agentcore:CreateAgentRuntimeEndpointbedrock-agentcore:CreateHarnessbedrock-agentcore:CreateWorkloadIdentitybedrock-agentcore:DeleteAgentRuntimebedrock-agentcore:DeleteAgentRuntimeEndpointbedrock-agentcore:DeleteWorkloadIdentitybedrock-agentcore:GetAgentRuntimebedrock-agentcore:GetAgentRuntimeEndpointbedrock-agentcore:GetHarnessbedrock-agentcore:TagResourcebedrock-agentcore:UpdateAgentRuntimebedrock-agentcore:UpdateAgentRuntimeEndpointiam:PassRole

read

bedrock-agentcore:GetHarnessbedrock-agentcore:ListTagsForResource

update

bedrock-agentcore:CreateAgentRuntimebedrock-agentcore:CreateAgentRuntimeEndpointbedrock-agentcore:CreateWorkloadIdentitybedrock-agentcore:DeleteAgentRuntimebedrock-agentcore:DeleteAgentRuntimeEndpointbedrock-agentcore:DeleteWorkloadIdentitybedrock-agentcore:GetAgentRuntimebedrock-agentcore:GetAgentRuntimeEndpointbedrock-agentcore:GetHarnessbedrock-agentcore:ListTagsForResourcebedrock-agentcore:TagResourcebedrock-agentcore:UntagResourcebedrock-agentcore:UpdateAgentRuntimebedrock-agentcore:UpdateAgentRuntimeEndpointbedrock-agentcore:UpdateHarnessiam:PassRole

delete

bedrock-agentcore:CreateAgentRuntimebedrock-agentcore:CreateAgentRuntimeEndpointbedrock-agentcore:CreateWorkloadIdentitybedrock-agentcore:DeleteAgentRuntimebedrock-agentcore:DeleteAgentRuntimeEndpointbedrock-agentcore:DeleteHarnessbedrock-agentcore:DeleteWorkloadIdentitybedrock-agentcore:GetAgentRuntimebedrock-agentcore:GetAgentRuntimeEndpointbedrock-agentcore:GetHarnessbedrock-agentcore:UpdateAgentRuntimebedrock-agentcore:UpdateAgentRuntimeEndpoint

list

bedrock-agentcore:ListHarnesses

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Quick Facts

ServiceBedrockAgentCore

Properties22

Required3

TaggingSupported

Primary IDArn

Supported Operations

CreateReadUpdateDeleteList

Immutable After Creation

These properties cannot be changed after the resource is created. Updating them triggers a replacement.

HarnessNameEnvironment/AgentCoreRuntimeEnvironment/NetworkConfiguration

Related Resources

External Links

AWS Documentation