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TermMate connects to external CLI-based agents to drive its core capabilities. Before installing the editor extension, you need to install and authenticate at least one of these CLI agents on your system.

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1. Install Agent CLI

Claude Code is Anthropic’s official terminal-based coding agent. Install it via terminal: 
curl -fsSL https://claude.ai/install.sh | bash

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Codex

Codex is OpenAI’s state-of-the-art coding companion. Install it globally using npm: 
npm install -g @openai/codex
TermMate automatically detects CLI installation paths across multiple environments, including Homebrew, npm-global, Yarn, and common local binary directories. You typically don’t need to manually configure environment variables or search paths.

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2. Authentication

Once installed, authenticate the agents via your terminal before starting a session in TermMate.

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Claude Code

claude /login

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Codex

codex login