---
title: "sandbase-harness"
description: "Connect Copilot and compatible agents to an existing SandBase Harness runtime for agents, sessions, turns, artifacts, and cancellation."
canonical: https://agentpluginsdirectory.com/plugins/sandbase-harness
last-updated: 2026-10-21
---

# sandbase-harness
Connect Copilot and compatible agents to an existing SandBase Harness runtime for agents, sessions, turns, artifacts, and cancellation.
- Slug: sandbase-harness
- Publisher: SandBase AI
- Repository: https://github.com/sandbaseai/sandbase-harness
- Manifest: agent-plugin/plugin.json
- Version: 0.1.1
- License: Apache-2.0
- Category (editorial): agent-tooling
- Skills: 0
- MCP servers: 1 (sandbase-harness)
- Stars: 640
- Repository created: 2026-07-11
- Repository last pushed: 2026-10-18
- Publisher type: Organization
- Listing: https://agentpluginsdirectory.com/plugins/sandbase-harness
- Schema: https://agent-plugins.org/schemas/1.0.0/plugin.schema.json

## What sandbase-harness does, in the publisher's words

A local-first runtime for AI agents. Sessions, sandboxed tools, memory, credentials, audit trails, and a built-in Console, all running on your machine or in your own infrastructure.

> Building with DeepSeek Harness? The independent DeepSeek Harness Handbook provides source-backed runtime guides, multilingual troubleshooting, and a regularly updated Agent-first resource map.

> Looking for a lightweight bridge instead of a full runtime? SandBase CLI > connects 25 AI client targets to 2,000+ models and APIs through a local stdio MCP bridge. > If it fits your workflow, star SandBase CLI > so other agent users can discover it.

- Official MCP Registry
- deepseek-plugin.org
- DeepseekPlugin
- DSH Plugin Directory
- DSH Plugin Hub
- DSH Directory

From the project README, punctuation lightly normalized. Full text: https://raw.githubusercontent.com/sandbaseai/sandbase-harness/HEAD/README.md

## MCP servers

- sandbase-harness: transport: stdio; command: docker run --rm -i --add-host=host.docker.internal:host-gateway -e MANAGED_AGENTS_URL -e MANAGED_AGENTS_API_KEY ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8

Read from the plugin's own mcp.json. Environment variable names only, never values.