mcp-server

Sandbase Harness

Name: Sandbase Harness
Author: sandbaseai

Open-source CMA-compatible agent runtime for any model, with MCP tools, sandboxed sessions, audit, replay, and a local console. Includes a native DeepSeek

640 stars66 forksTypeScriptUpdated 9/6/2026100% free · open source

What it does

Sandbase Harness is an open-source runtime for any model that provides a controlled environment with sandboxed sessions, auditing, and replay capabilities for automation tasks.

When to use it

•When you need to deploy and manage multiple machine learning models in a controlled environment
•When you want to leverage the power of CMA-compatible agents for automation tasks
•When you require a local console for monitoring and debugging your models and automation workflows

Ready-to-paste prompt

ts-node src/index.ts --model your_model_path --stdio-mcp your_mcp_config to run a model with specific MCP configuration

Heads up: Ensure you have Node.js and TypeScript installed and configured properly on your system, as Sandbase Harness is built with TypeScript and relies on Node.js for execution

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/sandbase-harness && curl -fsSL https://workflowstacks.com/api/skills/sandbase-harness/claude-skill -o ~/.claude/skills/sandbase-harness/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/sandbase-harness && curl -fsSL https://workflowstacks.com/api/skills/sandbase-harness/claude-skill -o ~/.claude/skills/sandbase-harness/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

sandbaseai

Language

TypeScript