# harness-playground-template

> harness-playground-template — kmarrrahul-harness-playground-template. Use this tool when you need to streamline AI agent development across multiple SDKs, such as GitHub Copilot, Claude, Antigravity, Codex, and Cursor. It solves the problem of switching between different AI agent platforms by providing a unified template for building custom playgrounds. With git integration, it accepts SDK configurations and tool extensions as inputs and outputs portable, reproducible agent workflows.

Canonical page: https://skillsregistry.net/skills/kmarrrahul-harness-playground-template  
JSON: https://api.skillsregistry.net/v1/skills/kmarrrahul-harness-playground-template

## Description

A meta-harness playground template for all your AI agents. Switch seamlessly between GitHub Copilot SDK, Claude Agent SDK, Antigravity SDK, Codex SDK, and Cursor SDK. Build your own playground by extending the template with your tools, skills, MCPs, CLIs, and containerized environments for portable, reproducible agent workflows.

## Trust

- **Trust score (0–1):** 0.23
- **Verification tier:** scanned
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/kmarrrahul/harness-playground-template)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "kmarrrahul-harness-playground-template"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/kmarrrahul-harness-playground-template` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/kmarrrahul-harness-playground-template/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt