Gemini CLI Integration and Node Version Update

[kaanozhan]

Added Google Gemini CLI as the third supported AI tool in Frame, alongside Claude Code and Codex CLI.

What changed

5 files modified:

• src/shared/frameConstants.js — Added GEMINI_SYMLINK constant
• src/main/aiToolManager.js — Gemini CLI tool definition with commands: /init, /model, /memory, /compress, /settings, /help
• src/main/frameProject.js — Creates GEMINI.md → AGENTS.md symlink on Frame project init
• src/main/menu.js — Added Gemini-specific menu items: Memory, Compress Context, Settings
• README.md — Updated supported tools list

Architectural approach

We took a different approach than Codex:
┌─────────────┬───────────────────────────────────┬────────────────────────────────────────────────────────────────────┐
│ Tool │ Strategy │ Reason │
├─────────────┼───────────────────────────────────┼────────────────────────────────────────────────────────────────────┤
│ Claude Code │ Reads CLAUDE.md natively │ Built-in support │
├─────────────┼───────────────────────────────────┼────────────────────────────────────────────────────────────────────┤
│ Codex CLI │ Wrapper script (.frame/bin/codex) │ No native file reading, needs AGENTS.md injected as initial prompt │
├─────────────┼───────────────────────────────────┼────────────────────────────────────────────────────────────────────┤
│ Gemini CLI │ Reads GEMINI.md natively │ Built-in support, same as Claude Code │
└─────────────┴───────────────────────────────────┴────────────────────────────────────────────────────────────────────┘
Since Gemini CLI natively reads GEMINI.md, we used the same symlink pattern as Claude Code (GEMINI.md → AGENTS.md) instead of a
wrapper script. Cleaner integration, no extra scripts needed.

Node.js version requirement

Gemini CLI requires Node.js 20+ due to its string-width dependency using the /v regex flag. Node.js 18 throws SyntaxError: Invalid
regular expression flags.

Fix: nvm install 20 && nvm alias default 20 && npm install

No impact on Frame — Electron 28, node-pty, and xterm.js are all compatible with Node 20.

Important: nvm alias default 20 is critical — without it, terminals spawned by Frame still use the old default version.