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Tuicr (GitHub Repo)

Tuicr (GitHub Repo)

DevOps GitHub
Tuicr is a terminal-based code review tool with vim keybindings that enables submitting reviews directly to GitHub and GitLab.
What: Tuicr is a Rust-based TUI that lets developers navigate git diffs, add inline comments, and push reviews to GitHub or GitLab, or export them as markdown for AI coding assistants.
Why it matters: It addresses the friction of context-switching between the terminal and browser for code reviews while bridging the gap between human review and AI-assisted workflows.
Takeaway: Install via `brew install agavra/tap/tuicr` or `cargo install tuicr` to start reviewing in your terminal.
Deep dive
  • Terminal UI: Uses vim-style navigation (j/k) and command modes.
  • Integration: Native support for pushing to GitHub PRs and GitLab MRs.
  • Persistence: Reviews are tracked across sessions and Git branches.
  • AI Compatibility: Can export structured markdown for tools like Cursor, Claude, or Copilot.
  • VCS Agnostic: Works with git, jujutsu (jj), and Mercurial.
  • Customization: Supports extensive theme and keybinding configuration via TOML.
Decoder
  • TUI: Terminal User Interface; a text-based application that runs inside the terminal.
  • Diff: The output of a comparison between two versions of a file or code tree.
  • Hunk: A contiguous block of lines in a diff output.
Original article

tuicr

A code review TUI with vim keybindings. Export to GitHub, GitLab, or clipboard.

Pronounced "tweaker".

What it does

  • GitHub-style continuous diff in the terminal. Scroll through every changed file in one stream.
  • PR-style comments at the line, range, file, and review level.
  • Review tracking at file or hunk granularity, persisted across sessions.
  • Three export targets: push a real review to GitHub or GitLab, copy structured markdown to your clipboard, or pipe to stdout.
  • Works with git, jj, and mercurial. Reviews uncommitted changes, commit ranges, or any GitHub PR or GitLab MR.

Install

curl -fsSL tuicr.dev/install.sh | sh
# or
brew install agavra/tap/tuicr

Other install methods (cargo, mise, nix, binaries, source)

# Cargo
cargo install tuicr

# Mise
mise use github:agavra/tuicr

# Nix
nix run github:agavra/tuicr

Pre-built binaries: GitHub Releases

From source:

git clone https://github.com/agavra/tuicr.git
cd tuicr
cargo install --path .

Update the active installation with one command:

tuicr update
tuicr update 0.18.0 # Install a known-good version

tuicr update uses Homebrew, Cargo, Mise, or a Nix profile when that manager owns the executable. Install-script and manually downloaded binaries update in place from the matching GitHub release asset after SHA-256 verification. Exact-version installs support Cargo and direct binaries; use the package manager's pinning workflow for Homebrew, Mise, or Nix. A nix run invocation is temporary rather than installed; rerun it to use the current flake, or use nix profile install github:agavra/tuicr for an installation that tuicr update can upgrade.

Quick start

tuicr                       # Pick from a commit selector
tuicr tui                   # Same TUI, explicit subcommand
tuicr -w                    # Uncommitted changes (skip selector)
tuicr -r main..HEAD         # Commit range
tuicr pr 125                # GitHub PR
tuicr mr 125                # GitLab MR
tuicr tui pr 125            # GitHub PR via explicit TUI subcommand
tuicr tui mr 125            # GitLab MR via explicit TUI subcommand
tuicr --stdout              # Pipe the review to stdout
tuicr review list           # List saved local review sessions
tuicr update                # Update the active installation
tuicr update 0.18.0         # Install a known-good version

Inside tuicr, navigate with j/k, press c to comment, then y to copy the review or :submit to push it to GitHub or GitLab. When opening a GitHub PR or GitLab MR you've reviewed before, tuicr preselects commits newer than your latest submitted review when that metadata is available; commits already covered by that review are marked with ✓ in the inline selector. Auto-detects git, jj, or mercurial.

How it compares

tuicr hunk lumen gh pr review git diff
TUI diff viewer ✅ ✅ ✅ ❌ ❌
Write comments in the TUI ✅ ✅ ✅ ❌ ❌
Vim keybindings ✅ ❌ partial¹ ❌ ❌
Push inline review to GitHub ✅ ❌ ❌ partial² ❌
Push inline review to GitLab ✅ ❌ ❌ ❌ ❌
Agent-ready markdown export ✅ via CLI skill ❌ ❌ ❌
git ✅ ✅ ✅ ❌ ✅
jj ✅ ✅ ✅ ❌ ❌
Mercurial (hg) ✅ ❌ ❌ ❌ ❌
Single static binary ✅ (needs Node) ✅ ✅ ✅

¹ Lumen has j/k navigation but no broader vim model (visual mode, {N}G, Ctrl-d/Ctrl-u, etc.).

² gh pr review posts approve/comment/request-changes at the review level only. No inline line comments.

Export your review

When you're done reviewing, send your comments wherever the work continues.

To GitHub

:submit opens a picker for Comment, Approve, Request changes, or Draft. Inline comments land on the right lines as a real PR review. Review-level comments become the review summary. Requires gh authenticated to the repo.

To GitLab

:submit offers Comment, Approve, or Request changes on a GitLab MR. Inline comments post as discussion notes. Review-level comments become the summary. Requires glab authenticated to the host. Request changes needs your account to be an assigned reviewer. Only Draft is GitHub-only here.

To your coding agent

y or :clip copies a structured markdown block to your clipboard. Each comment has a number and a file/line anchor:

I reviewed your code and have the following comments. Please address them.

1. `src/auth.rs` - Consider adding unit tests
2. `src/auth.rs:42` - Magic number should be a named constant
3. `src/auth.rs:50-55` - This block could be refactored

Paste it back to any coding agent (Claude, Codex, Cursor, etc).

To stdout

Run with --stdout to pipe the markdown to another process:

tuicr --stdout > review.md
tuicr --stdout | pbcopy

Review session CLI

tuicr review exposes saved sessions without opening the TUI. It can list sessions, add comments, and print stored comments for agent and script integrations.

The TUI creates a persisted session file when a review target becomes active, so collaborative tools can add comments immediately. Empty auto-created session files are removed when the TUI exits. tuicr review list marks currently open TUI sessions with "active": true.

Library API

tuicr also exposes a Rust library API for tools that want to build on top of its persisted review sessions. ReviewStore can list sessions for a checkout, load a session, and add review, file, line, or range comments using the same insertion primitive as the TUI.

use tuicr::{AddCommentRequest, CommentTarget, CommentType, LineSide, ReviewStore};

let store = ReviewStore::new();
let sessions = store.list_sessions_for_repo("/path/to/repo")?;
let session = &sessions[0].session_ref;

store.add_comment(
    session,
    AddCommentRequest {
        target: CommentTarget::Line {
            path: "src/main.rs".into(),
            line: 42,
            side: LineSide::New,
        },
        content: "Handle the empty case here.".into(),
        comment_type: CommentType::from_id("issue"),
    },
)?;

Configuration

Path: ~/.config/tuicr/config.toml on Linux/macOS, %APPDATA%\tuicr\config.toml on Windows.

theme = "catppuccin-mocha"
diff_view = "side-by-side"   # or "unified"
ignore_whitespace = false    # ignore all whitespace in local VCS diffs
appearance = "system"        # or "dark" / "light"
mouse = true
leader = ";"                  # configurable prefix for leader shortcuts
comment_vim = false           # vim modal editing in the review comment box
relative_line_numbers = false # show rendered-row distances in the diff gutter
review_watch_interval_ms = 1000 # set to 0 to disable persisted-review polling

[[comment_types]]
id = "issue"
color = "red"
definition = "must fix before merge"

Keybindings

A first-session cheatsheet. Press ? inside tuicr for the full reference.

Key Action
j / k Down / up
Ctrl-d / Ctrl-u Half-page down / up
g / G Top / bottom
{ / } Previous / next file
[ / ] Previous / next hunk
m / M Next / previous comment
/ Search the diff, or search help while help is open (case-insensitive)
c / C Add line / file comment
v / V Visual mode (range comment)
r Toggle file reviewed
R Toggle hunk reviewed
e Open focused file in $EDITOR
y Copy review to clipboard
:edit Open focused file in $EDITOR
:submit Push review to GitHub or GitLab
Tab in : prompt Complete or cycle commands
? Toggle full help

License

MIT licensed.

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