nit-cli 0.2.0

Terminal diff viewer with inline review comments

nit

Terminal diff viewer with inline review comments.

Navigate diffs with vim-style keybindings, leave comments on specific lines, and persist them as structured JSON. Useful for code review workflows, self-review before committing, and giving feedback to AI coding tools.

Install

pip install nit-cli

Usage

# Review current branch changes (vs main/master)
nit

# Review unstaged changes
nit --mode unstaged

# Review all uncommitted changes
nit --mode all

# Review a specific commit range
nit HEAD~3..HEAD
nit main..feature

# Filter to specific files or directories
nit --path src/
nit --path src/nit/app.py main..feature

Keybindings

Key	Action
j / k	Move cursor down / up
J / K	Jump to next / previous hunk
n / p	Next / previous file
] / [	Jump to next / previous comment
c	Add comment on current line
d	Delete comment on current line
m	Cycle diff mode (branch / unstaged / all)
r	Refresh diff
q	Quit

Comment Storage

Comments are saved to .nit.json at the root of your git repository. The format is structured JSON:

{
  "version": 1,
  "branch": "my-feature",
  "base": "main",
  "comments": [
    {
      "file": "src/app.py",
      "line": 42,
      "line_content": "    return result",
      "comment": "Should handle the empty case here",
      "hunk_context": ["...", "..."],
      "timestamp": "2025-01-15T10:30:00+00:00",
      "diff_mode": "branch"
    }
  ]
}

Add .nit.json to your global gitignore to keep comments local:

echo '.nit.json' >> ~/.config/git/ignore

Claude Code Integration

nit works as a review tool for Claude Code. Leave comments on Claude's changes using nit, then have Claude read them with the /review-feedback skill. This creates a feedback loop where you can guide Claude's work through inline code review.

Development

git clone https://github.com/joshuazd/nit.git
cd nit
pip install -e ".[dev]"
pytest

The ./nit bootstrap script auto-creates a virtualenv for quick local use without manual setup.

License

GPL-3.0 - see LICENSE for details.