# MCP App Test Value Picker Server

> Use this tool when you need to verify seamless end-to-end communication between the UI, host, and model in your MCP App, or troubleshoot issues with context injection and message sending. It provides a blind selection test to ensure correct protocol implementation, taking in test inputs and outputting verification results. Ideal for platform developers during the debugging and testing phases of MCP App development.

Canonical page: https://skillsregistry.net/skills/macjedi42-mcp-server-value-picker  
JSON: https://api.skillsregistry.net/v1/skills/macjedi42-mcp-server-value-picker

## Description

A debug tool for platform developers to verify that their MCP App hosts correctly implement protocol specifications like context injection and message sending. It provides a blind selection test to ensure seamless end-to-end communication between the UI, host, and model.

## Trust

- **Trust score (0–1):** 0.68
- **Verification tier:** scanned
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-02

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/a2powcm1b4)
- **Repository:** <https://github.com/MacJedi42/mcp-server-value-picker>

## 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": "macjedi42-mcp-server-value-picker"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/macjedi42-mcp-server-value-picker` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/macjedi42-mcp-server-value-picker/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