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agent-sandbox enables easy management of isolated, stateful, singleton workloads, ideal for use cases like AI agent runtimes.
| Date | Stars |
|---|---|
| 2026-07-31 | 3341 |
| 2026-08-02 | 3372 |
| 2026-08-03 | 3372 |
| 2026-08-06 | 3372 |
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Momentum
60.0
growth rate 0.00%/day
<div align="center">
<img src="site/assets/icons/color_logo.svg" alt="Agent Sandbox logo" width="150" />
<h1>Agent Sandbox</h1>
</div>
<p>
<a href="https://github.com/kubernetes-sigs/agent-sandbox/releases"><img src="https://img.shields.io/github/v/release/kubernetes-sigs/agent-sandbox" alt="GitHub release"></a>
<a href="LICENSE"><img src="https://img.shields.io/badge/Apache-2-blue.svg" alt="Apache-2.0 license"></a>
</p>
[Website](https://agent-sandbox.sigs.k8s.io) · [Docs](https://agent-sandbox.sigs.k8s.io/docs/) · [DeepWiki](https://deepwiki.com/kubernetes-sigs/agent-sandbox) · [Getting Started](https://agent-sandbox.sigs.k8s.io/docs/getting_started/) · [Examples](examples/) · [Roadmap](roadmap.md)
**agent-sandbox enables easy management of isolated, stateful, singleton workloads, ideal for use cases like AI agent runtimes.**
This project is developing a `Sandbox` Custom Resource Definition (CRD) and controller for Kubernetes, under the umbrella of [SIG Apps](https://github.com/kubernetes/community/tree/master/sig-apps). The goal is to provide a declarative, standardized API for managing workloads that require the characteristics of a long-running, stateful, singleton container with a stable identity, much like a lightweight, single-container VM experience built on Kubernetes primitives.
> [!NOTE]
> **Scope:** Agent Sandbox is a *sandbox orchestrator*. It delegates low-level container isolation to secure "Sandbox Runtimes" (like gVisor or Kata Containers) by managing Pods configured to use these runtimes (via `RuntimeClass`).
## Overview
### Core: Sandbox
The `Sandbox` CRD is the core of agent-sandbox. It provides a declarative API for managing a single, stateful pod with a stable identity and persistent storage. This is useful for workloads that don't fit well into the stateless, replicated model of Deployments or the numbered, stable model of StatefulSets.
Key features of the `Sandbox` CRD include:
* **Stable Identity:** Each Sandbox has a stable hostname and network identity.
* **Persistent Storage:** Sandboxes can be configured with persistent storage that survives restarts.
* **Lifecycle Management:** The Sandbox controller manages the lifecycle of the pod, including creation, scheduled deletion, pausing and resuming.
### Extensions
The `extensions` module provides additional CRDs and controllers that build on the core `Sandbox` API to provide more advanced features.
* `SandboxTemplate`: Provides a way to define reusable templates for creating Sandboxes, making it easier to manage large numbers of similar Sandboxes.
* `SandboxClaim`: Allows users to create Sandboxes from a `SandboxWarmPool`, abstracting away the details of the underlying Sandbox configuration.
* `SandboxWarmPool`: Manages a pool of pre-warmed Sandboxes that can be quickly allocated to users, reducing the time it takes to get a new Sandbox up and running.
## Architecture
agent-sandbox follows the Kubernetes controller pattern. Users create a Sandbox custom resource, and the controller manages the underlying runtime resources.
### Architecture Diagram
```mermaid
flowchart LR
User[User]
Claim[SandboxClaim]
Template[SandboxTemplate]
Sandbox[Sandbox]
Pod[Pod]
Runtime[Sandbox Runtime]
WarmPool[SandboxWarmPool]
subgraph Extensions[Extensions]
Claim
Template
WarmPool
end
%% User paths
User -->|creates| Sandbox
User -->|creates| Claim
%% Claim workflow
WarmPool -->|references| Template
Claim -->|adopts| Sandbox
%% Pod handling
Claim -->|adopts sandboxes from| WarmPool
Sandbox -->|creates Pod| Pod
%% Runtime
Pod --> Runtime
%% Warm pool
WarmPool -->|pre-warms sandboxes| Sandbox
```
## Installation
### Standard Install (Core + Extensions)
Recommended for most users and GitOps engines (Argo CD, Config Sync, kustomize).
`sandbox-with-extensions.yaml` is a single, collision-free asset (the controller is
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