# Bundler Gem Explorer

> Use this tool when you need to manage and understand Ruby gem dependencies in a project's Gemfile, as it provides detailed information about specific gems and lists all project gems. It solves problems related to dependency management, such as retrieving gem versions, descriptions, and source code files. The tool accepts queries as input and returns detailed gem information as output, making it ideal for use in development environments where AI agents need to interact with Ruby project dependencies.

Canonical page: https://skillsregistry.net/skills/bundler-gem-explorer  
JSON: https://api.skillsregistry.net/v1/skills/bundler-gem-explorer

## Description

BundlerMCP is a server that enables AI agents to query information about Ruby gem dependencies in a project's Gemfile. Developed by Mike Subelsky under MIT license, it provides tools for listing all project gems and retrieving detailed information about specific gems including versions, descriptions, installation paths, documentation locations, and source code files. Built with fast-mcp, it runs in the correct Bundler environment through binstubs, making it particularly valuable for developers who need AI assistants to understand and work with their Ruby project dependencies.

## Trust

- **Trust score (0–1):** 0.97
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-28

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/bundler-gem-explorer)
- **Repository:** <https://github.com/subelsky/bundler_mcp>

## 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": "bundler-gem-explorer"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/bundler-gem-explorer` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/bundler-gem-explorer/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