# Promptest MCP

> Promptest MCP — cortexresearch-promptest-mcp. Use this tool when you need to evaluate and refine prompts for optimal outcomes, as it grades prompts against a validated rubric and provides research-based guidance to improve results. It solves problems related to prompt quality and effectiveness, offering a data-driven approach to track real outcomes and inform prompt optimization. With input of prompts and output of graded assessments and guidance, it is ideal for use cases where precise and effective prompting is crucial.

Canonical page: https://skillsregistry.net/skills/cortexresearch-promptest-mcp  
JSON: https://api.skillsregistry.net/v1/skills/cortexresearch-promptest-mcp

## Description

An MCP server that grades prompts against a validated rubric, tracks real outcomes, and provides guidance grounded in research on what predicts good results.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/epewcmj8o6)
- **Repository:** <https://github.com/cortexresearch/promptest-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": "cortexresearch-promptest-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/cortexresearch-promptest-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/cortexresearch-promptest-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