TermMate — Agentic Coding Assistant for Sublime Text

Claude Code, OpenAI Codex, Google Antigravity, OpenCode, and Pi coding agents for Sublime Text

TermMate is a professional AI coding agent for Sublime Text that supports multi-agent providers, including Claude Code, Codex, Google Antigravity, OpenCode, and Pi Agent. It builds a seamless native agentic interface directly within your editor for autonomous task execution, codebase exploration, and smart refactoring. Instead of using conventional webview, TermMate provides editor-native, REPL-inspired chat interface with modern editor features such as goto-navigation, auto-complete, folding, file links.

See TermMate agentic coding features — live demo here →

TermMate's main agentic features include:

• autonomous coding workflow - let agents explore your codebase, run commands, edit files, and complete tasks directly in Sublime Text.
• editor-native chat - plan tasks, follow tool execution, approve agent actions, and review changes in an editor-native interface.
• workspace awareness - reference files, line ranges, selections, and multi-level directory paths with cascading smart @ completion and sidebar actions.
• session management - start fresh, resume previous conversations, or rewind and branch from earlier prompt.

Getting Started

1. TermMate Installation

Install TermMate via Package Control:

1. Open the Command Palette (Cmd+Shift+P on macOS, Ctrl+Shift+P on Windows/Linux).
2. Type Package Control: Install Package and press Enter.
3. Search for TermMate and press Enter.

2. Install Agent CLI

If Claude Code, Codex, Google Antigravity, OpenCode, or Pi Agent is already installed and authenticated, skip this step. TermMate automatically detects existing CLI installations and uses their current authentication — no extra setup needed.

Otherwise, the easiest way is to install directly from within Sublime Text: open the Command Palette, type TermMate: Install Agent, and select the agent you want. TermMate will run the installation in dedicated panel and notify you when it's complete. CLIs are installed to ~/.local/bin on macOS/Linux and %APPDATA%\npm on Windows.

Alternatively, manually install an agent from your terminal:

# Claude Code
curl -fsSL https://claude.ai/install.sh | bash

# Codex (macOS/Linux)
curl -fsSL https://chatgpt.com/codex/install.sh | sh
# Codex (Windows PowerShell)
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"

# Google Antigravity (macOS/Linux)
curl -fsSL https://antigravity.google/cli/install.sh | bash
# Google Antigravity (Windows PowerShell)
powershell -ExecutionPolicy ByPass -c "irm https://antigravity.google/cli/install.ps1 | iex"

# OpenCode (macOS/Linux)
curl -fsSL https://opencode.ai/install | bash
# OpenCode (Windows)
npm install -g opencode-ai

# Pi Agent
curl -fsSL https://pi.dev/install.sh | sh

Note: 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.

3. Authentication