# lazy-calculator-mcp

> lazy-calculator-mcp — tommy2face-lazy-calculator-mcp. Use this tool when you need to simulate a slow-response calculator server for learning MCP basics, solving problems related to asynchronous programming and delayed responses. It takes in mathematical expressions as input and returns calculated results after a intentional delay, providing a hands-on tutorial for MCP server development. Ideal for use cases where understanding delayed server responses is crucial, such as testing and debugging MCP applications.

Canonical page: https://skillsregistry.net/skills/tommy2face-lazy-calculator-mcp  
JSON: https://api.skillsregistry.net/v1/skills/tommy2face-lazy-calculator-mcp

## Description

Simple MCP server tutorial — calculator with intentionally slow responses for learning MCP basics

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Updated:** 2026-09-20

## Source

- **Source listing:** [GitHub](https://github.com/Tommy2Face/lazy-calculator-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": "tommy2face-lazy-calculator-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/tommy2face-lazy-calculator-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/tommy2face-lazy-calculator-mcp/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