SDK Python v1.58.1 | Strands Agents

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/harnessStrands harness is a state-of-the-art, fully assembled agent harness./harness-sdkThe Strands Harness SDK for building an agent harness from the ground up./boxAn agent sandbox that pairs OS containment with Dogwood policy./shellA virtual shell designed for AI agents to use safely./evalsValidate your agent before you ship./labsExperimental projects pushing the boundaries of what agents can do.
CoursesGuided lessons from your first agent to multi-agent systems.ExamplesRunnable samples you can drop into your own project.
Integrations
Contribute
Blog

/harnessStrands harness is a state-of-the-art, fully assembled agent harness.

Get started
Configure the agent
Built-in tools
Take Strands harness to production
Reference
- Configuration reference
- Versioning & Support

/harness-sdkThe Strands Harness SDK for building an agent harness from the ground up.

Get started
Migrate
Build guides
Run guides
- Deploy to production
  - Operating Agents in Production
  - Amazon Bedrock AgentCore
    Overview
    Python
    TypeScript
  - AWS Lambda
  - AWS Fargate
  - AWS App Runner
  - Amazon EKS
  - Amazon EC2
  - Docker
    Overview
    Python
    TypeScript
  - Kubernetes
  - Terraform
  - Nx Plugin for AWS
- Observe your agent
- Secure for production
Components
- Agent loop
- Production lifecycle controls
- State
- Storage
  - Overview
  - Search Strategies
- Snapshots
- Prompts
- Hooks
- Hook events
- Middleware
- Context management
- Retry strategies
- Structured output
- Interrupts
  - Overview
  - Interrupts in Multi-Agent Systems
- Models
- Tools
- Memory
- Plugins
- Interventions
- Sandbox
- Multi-agent
- Streaming
- Voice
- Conversation management
- Experimental
  - AgentConfig
Reference

/boxAn agent sandbox that pairs OS containment with Dogwood policy.

Get started
- Overview
- Getting started
How-to guides
Security
- Security model
- Agent and tool sandboxes
Reference

/shellA virtual shell designed for AI agents to use safely.

Get started
Guides
Components
Security
- Security model
Reference
- Reference

/evalsValidate your agent before you ship.

Get started
Build guides
- Generate test cases
- Plan topic coverage
Run guides
Components
CLI

/labsExperimental projects pushing the boundaries of what agents can do.

CoursesGuided lessons from your first agent to multi-agent systems.ExamplesRunnable samples you can drop into your own project.

Integrations Contribute Blog

← All releases

v1.58.1
Oct 6, 2026
GitHub release PyPI 1.58.1
⊘ Fixes 1
- preserve reported cache token usagemodel

← Olderv1.58.0 Newer →v1.59.0