MCP Builder

Not yet reviewedotherPrompt / Rule# other # skill # ai

Create Model Context Protocol servers.

Not yet reviewed (manual audit pending)

This skill is cataloged from open community sources and has not yet completed full manual verification. Inspect repository code prior to local execution.

Install MCP Builder in Google Antigravity

Antigravity loads skills from .agents/skills/ in your project or ~/.gemini/config/skills/ for all projects (official docs). Full guide

EasiestOption 1: paste this to your Antigravity agent

Install the "MCP Builder" skill for Google Antigravity.
Follow the steps at https://www.antigravityskills.org/install/mcp-builder.md (source: https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/mcp-builder).
Before running anything, show me what you will download and whether it includes scripts, and wait for my OK.
Install it into this project (.agents/skills/) unless I say global. When done, check that Antigravity lists it as an installed skill.

The agent reads the install file, shows you what it will download and waits for your OK.

Option 2: install it yourself

1. Download the skill folder
```
git clone --depth 1 https://github.com/sickn33/antigravity-awesome-skills.git /tmp/ag-skills
```
The skill lives in skills/mcp-builder/ of the source repository.
2. Copy it into this project (workspace skill)
```
mkdir -p .agents/skills && cp -r /tmp/ag-skills/skills/mcp-builder .agents/skills/
```
Run from your project root. Antigravity loads workspace skills from .agents/skills/.
3. Or install it for all projects (global skill)
```
mkdir -p ~/.gemini/config/skills && cp -r /tmp/ag-skills/skills/mcp-builder ~/.gemini/config/skills/
```
Global skills live in ~/.gemini/config/skills/. For the Antigravity CLI use ~/.gemini/antigravity-cli/skills/ instead.
4. Check that Antigravity sees it
Antigravity 2.0 app: start a new conversation and ask "What skills do you have?" (the app has no /skills command; typing / and the skill name also finds it). Antigravity CLI: run /skills; in a session that was already open, run /skills reload first. The agent loads the skill when your request matches its description.

Using Claude Code, Cursor or Codex? See other assistants below.

What is MCP Builder?

Create MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. The quality of an MCP server is measured by how well it enables LLMs to accomplish real-world tasks.
Description from the upstream SKILL.md

What the MCP Builder SKILL.md covers

✓High-Level Workflow
✓Documentation Library
✓Prerequisites and example

Source and files

Repository: sickn33/antigravity-awesome-skills (MIT)
Upstream risk label: critical
Added upstream: 2026-02-27
SKILL.md size: 11.3 KB
Files in the skill folder: LICENSE.txt · SKILL.md · reference · scripts
Listing synced: 2026-10-05 from commit bdacd76

Installation & Setup Guide

Agent Rules / Prompt Setup

RecommendedQuick install command

git clone --depth 1 https://github.com/sickn33/antigravity-awesome-skills.git /tmp/ag-skills && mkdir -p ~/.gemini/config/skills && cp -r /tmp/ag-skills/skills/mcp-builder ~/.gemini/config/skills/ && rm -rf /tmp/ag-skills

▶Step-by-step install

Step 1: Create skills directory

mkdir -p ~/.gemini/config/skills

Step 2: Clone the skills repository

git clone --depth 1 https://github.com/sickn33/antigravity-awesome-skills.git /tmp/ag-skills

Step 3: Copy this skill

cp -r /tmp/ag-skills/skills/mcp-builder ~/.gemini/config/skills/

Step 4: Clean up temporary files

rm -rf /tmp/ag-skills

Security Review Status

Not yet reviewed (manual audit pending)

This skill is cataloged from open community sources and has not yet undergone full manual line-by-line security verification by our team.

Recommended Verification Steps Prior to Execution:

Inspect the source repository files before adding to your local AI tool config.
Avoid passing production API credentials or sensitive filesystem permissions unless explicitly required.
Run initial commands inside a sandboxed terminal or container environment.

Source repository link for manual inspection: https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/mcp-builder

Operational Notes & Known Limitations

Known Limitations

•Schema validity and a passed task do not establish authorization, tenant isolation,
•Server content and descriptions are untrusted; never execute instructions embedded
•Evaluation questions and expected answers are fixtures, not evidence of a completed
•Tool annotations are hints. Server-side authorization remains necessary on every call.
•The helper has bounded rounds/calls but is not a sandbox for a hostile server. A

Supported Platforms

antigravityclaudecursor

View Source on GitHub

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