MCP Apps Playground

Item: MCP Apps Playground
Rating: 70
Author: M8ven

A demo MCP server showcasing interactive HTML UIs for tools like list sorting, flame graphs, and feature flags, enabling bidirectional communication between user and agent.

→ digitarald/mcp-apps-playground · listed on glama

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// key findings

⚠️

Tool descriptions don’t match what handlers do

2 tools describe read intent but their handlers mutate — list_sort (line 32: fs.appendFileSync(LOG_FILE, line)); database_query (line 32: fs.appendFileSync(LOG_FILE, line))

⚠️

Known vulnerabilities in dependencies: 1 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// known CVEs in dependencies1 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.25.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

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// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configPORT

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 7 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/digitarald-mcp-apps-playground-1jm0p2)](https://m8ven.ai/mcp/digitarald-mcp-apps-playground-1jm0p2)

commit: 3ba7445c83fa7223b59fa54fb8f20fd502ca696f

code hash: fc0d0296c9382b5f9ec172bc8a0e0255ec4e62eb974e02e0ef62589a92d4c03a

verified: 7/21/2026, 8:38:25 AM

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