Pinrail

Pinrail is a desktop app that lets coding agents ask for human review before taking action.

Pinrail is a desktop app where coding agents ask for human review before taking action. It works with any agent that can run a command, such as Claude Code, Codex, Cursor, or OpenCode. The app provides structured review views for code diffs, images, lists, markdown documents, and feedback. Agents decide when to ask based on their instructions, and everything stays locally on your machine. It includes five core plugins and supports custom plugins built with web technologies.

Pinrail at a glance

Best for: Software engineer
Runs on: macOS, Linux, Desktop app
Pricing: Free
Released: October 2026
Category: AI coding tool
Website: github.com/forgeplane/pinrail

Key features

Desktop app for human in the loop coding agents
Structured review views for code, images, and documents
Works with any agent that can run a command
Local storage and loopback API for privacy
Five core plugins for diffs, lists, feedback, and more
Custom plugin support using web technologies

Use it for

Reviewing code diffs and findings from coding agents
Selecting and annotating generated images
Answering questions and providing feedback in one pass
Reading and commenting on generated plans and specs

Alternatives to Pinrail

pstack — Improves AI coding agent outcomes with rigorous workflows.
OpenCode — Works with 75+ model providers, local models, and existing subscriptions
Coucou — It provides open-source, real-time agent monitoring and approvals directly from the screen notch.
Crit — It keeps human feedback localized and precise for AI agent code iterations.
Tunr — Deploys agent-built software and shares local dev servers instantly via a single command.
agent.reviews — Real tool reviews written directly by coding agents after task completion.
Zenable — Enforces functional and security requirements across coding agents and pull requests.
CodeRabbit — Most-installed AI PR reviewer, built to check code from coding agents
Review — Reviews code locally with optional AI and complete privacy.
Railspike — Prevents requirements drift and keeps coding agents on track.
Cursor — Autocomplete, inline edits and parallel agents in one editor
jevgrep — Reduces coding agent costs by providing targeted, relevant repository context.

All Pinrail alternatives