> ## Documentation Index
> Fetch the complete documentation index at: https://docs.agentscope.io/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> For AgentScope Python, use https://docs.agentscope.io/stable/en/index for new projects. For existing projects, check the installed agentscope version and use matching versioned documentation.
> The /latest/ alias points to the newest documentation and may move ahead of /stable/ when a development version exists. Do not mix AgentScope 1.x and 2.x APIs.
> State the AgentScope version when providing installation commands or code examples. ReMe uses its own continuously updated /reme/latest/ documentation.

# What's AgentScope 2.0?

> Secure, efficient, flexible, and complete.

AgentScope 2.0 is a production-ready agent framework built for security, efficiency, flexibility, and completeness — with **multi-tenant**, **multi-session** management and **distributed deployment** as first-class citizens.

> [!NOTE]
>
> AgentScope 2.0 is a breaking change from 1.0, with significant improvements. We recommend users to migrate to 2.0 to take advantage of the new features and improvements.

* **Secure**: Triple-layer protection via tool-specific review, human-in-the-loop permissions, and sandboxing.
* **Efficient**: Intelligent orchestration for concurrent or sequential tool execution based on tool properties.
* **Flexible**: Non-invasive modification of agent runtime behavior via agent and tool middleware.
* **Complete**: Full-stack coverage with development SDK, frontend UI, multi-tenant multi-session backend, and distributed deployment.

## Full-stack capabilities, production-hardened

From reasoning agent to enterprise deployment, AgentScope covers the full agent development lifecycle.

> **[ReAct Agent](/en/versions/2.0.9/building-blocks/agent/overview.md)**
>
> Autonomous agent with ReAct reasoning and tool execution. Built-in human-in-the-loop oversight and efficient tool orchestration.

> **[Toolkit](/en/versions/2.0.9/building-blocks/tool/overview.md)**
>
> Agent self-managed tool system with Python functions, MCP and skills integration.

> **[Context](/en/versions/2.0.9/building-blocks/context/overview.md)**
>
> Compression, offload and agentic retrieval for context management and long-term memory. Third-party integration with Mem0, ReMe and other vector databases.

> **[Sandbox Isolation](/en/versions/2.0.9/building-blocks/workspace/overview.md)**
>
> Tool execution in isolated environments (local filesystem, Docker, E2B, K8s, etc.) with multi-granularity isolation at user, agent, and session levels.

> **[Agent as Service](/en/versions/2.0.9/deploy/agent-service.md)**
>
> One-click start of a production-ready backend with multi-tenant, multi-session management and distributed deployment, plus a frontend UI and development SDK.


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