Tetrad FAQs

Question 1

What is Tetrad?

Accepted Answer

Tetrad is a high-performance Rust-based MCP server that orchestrates three AI-powered CLI tools (Codex, Gemini, Qwen) to validate code produced by Claude Code, enhancing reliability through a unique quadruple consensus protocol.

Question 2

What is ReasoningBank?

Accepted Answer

ReasoningBank is Tetrad's continuous learning system. It uses a RETRIEVE→JUDGE→DISTILL→CONSOLIDATE cycle to learn and adapt to code patterns, improving its evaluation accuracy and efficiency over time.

Question 3

How does Tetrad ensure code reliability?

Accepted Answer

It implements a 'quadruple consensus protocol' requiring approval from four intelligences: the three external AI evaluators (Codex, Gemini CLI, Qwen) and Claude Code itself. Code is only accepted if all four agree.

Question 4

Do I need separate API keys for all AI models?

Accepted Answer

Not necessarily. Tetrad supports authenticating external CLI tools (Codex, Gemini, Qwen) using existing subscriptions (e.g., ChatGPT Plus, Google account) without always requiring new, separate API keys.

Question 5

How does Tetrad integrate with Claude Code?

Accepted Answer

Tetrad integrates as an MCP (Model Context Protocol) server via JSON-RPC 2.0 over stdio. Claude Code automatically calls Tetrad for tasks like `tetrad_review_plan` or `tetrad_review_code` during its development workflow.

Tetrad

Tetrad

Key Features

Use Cases

Key Features

Use Cases