code-preview.nvim

code-preview.nvim

Review every edit your AI coding agent makes as a native Neovim diff — before it's written to disk.

Works with Claude Code, OpenCode, GitHub Copilot CLI, and OpenAI Codex CLI — on macOS, Linux, and Windows.

Demo
Shown with Claude Code. OpenCode, GitHub Copilot CLI, and Codex CLI work the same way — expand 📺 More demos below.

Why

Your AI coding agent proposes edits in its terminal — a cramped, scroll-past diff you have to eyeball before typing y. code-preview.nvim intercepts that moment and opens the proposed change as a real Neovim diff: full syntax highlighting, your colorscheme, your keymaps. Review it like any other diff, then accept or reject in the agent's CLI as usual.

- 🔍 See edits as native diffs — side-by-side or GitHub-style inline, before anything touches disk
- 🤝 Agent-agnostic — Claude Code, OpenCode, Copilot CLI, Codex CLI, with more agents planned
- 🌳 Neo-tree integration — your file tree marks what's being modified, created, or deleted
- 🪶 No Python — file transforms run through nvim --headless -l; the only hard dep is Neovim 0.10+

📺 More demos

OpenCode

GitHub Copilot CLI

OpenAI Codex CLI

Neo-tree integration

Install

With lazy.nvim:

Manual (path-based)

Requirements: Neovim >= 0.10. Each agent has a couple of extra needs — see below.

Per-agent requirements

On Windows, the Copilot CLI hook runs under PowerShell 7+ and needs no jq.

Quick start

After setup(), the flow is the same for every agent:

1. Open your project in Neovim.
2. Install the agent's hooks (one command — pick your agent below) and restart that agent's CLI.
3. Ask the agent to edit a file — a diff preview opens automatically in Neovim.
4. Review it, then accept or reject in the agent. On accept, the preview closes automatically.

Then run the one…