VibeCheck MCP Server

What is VibeCheck?

VibeCheck is a simple feedback collection tool for Claude Code that automatically captures cost data and git change information. It runs as a local MCP server and allows users to submit helpfulness ratings, time saved, and experience summaries directly from the Claude Code terminal.

How to use VibeCheck?

Install Node.js ≥18, Git ≥2.23, and the Claude Code CLI globally. Clone the repository, run npm install, optionally configure .env with your ANTHROPIC_API_KEY, and execute npm run preflight to verify the environment. In Claude Code, use the command /project:feedback to submit feedback, which automatically includes git changes and cost data from the /cost command.

Key features of VibeCheck

• Collects helpfulness ratings (1–5) and time saved (in minutes)
• Automatically analyzes git changes and generates summaries
• Integrates cost data from Claude Code’s /cost command
• Stores all feedback locally in .VibeCheck/feedback.ndjson
• Runs as a local MCP server on http://127.0.0.1:6111

Use cases of VibeCheck

• Gathering structured feedback on Claude Code interactions during development
• Tracking time saved and cost incurred per session to measure productivity
• Associating code changes with user experience for retrospective analysis
• Keeping all feedback data on‑premise for privacy and audit purposes