cubic is an AI code review platform that reviews pull requests and scans codebases for bugs, vulnerabilities, and rule violations. It helps teams work faster with inline feedback, PR summaries, and workflow integrations.

cubic preview

Overview

cubic is an AI code review platform for complex codebases. It reviews pull requests, generates summaries, and helps teams catch bugs, tech debt, and rule violations before code is merged.

The product also offers codebase scans that run continuously or on a schedule to find bugs and vulnerabilities across a repository. Those scans can triage issues, notify owners, and create fix PRs or tickets depending on the workflow and plan.

Features

PR and IDE code review

cubic reviews pull requests in GitHub and supports use in the IDE, so teams can catch issues where they already work.

Inline reviews and PR summaries

It generates inline feedback on PRs, with AI PR descriptions that summarize changes and surface impact.

One-click and assisted fixes

The product supports one-click fixes for simple issues and a “Fix with cubic” flow for harder ones.

Custom review rules

Users can write rules in plain English and have cubic enforce team standards and best practices.

Team-specific learning

cubic learns from senior engineers’ PR comment history to adapt to a team’s review style.

Context from workspace tools

cubic can pull context from connected tools such as Linear, Jira, Notion, and Confluence to inform reviews and scans.

Use Cases

  • PR review for busy teams

    Use cubic on pull requests to surface bugs, tech debt, and style issues before code merges, especially when reviewers need faster first-pass feedback.

  • Scheduled codebase scanning

    Run scans across the codebase to find vulnerabilities and other issues on a schedule or before a big release, then triage findings into fixes or tickets.

  • PR context and change summaries

    Use the tool to generate PR descriptions and summaries that help readers understand changes and their impact more quickly.

  • Reviewing with workspace context

    Connect cubic to team tools like Jira, Linear, Asana, Notion, and Confluence so reviews and scans can use project context from existing workflows.

  • Documentation and fix automation

    Adopt the paid wiki and automation features to document codebase knowledge and create fix PRs for detected issues where that fits the team’s process.

Pros and Cons

Pros

  • Reviews PRs in GitHub and supports review workflows in the IDE.
  • Produces inline feedback and PR summaries to speed up review.
  • Supports codebase scans for bugs, vulnerabilities, and issue triage.
  • Connects to common planning and documentation tools such as Jira, Linear, Asana, Notion, and Confluence.
  • Offers a free tier, plus paid plans and enterprise pricing.

Cons

  • Some workflows and integrations are plan-dependent, so the exact capabilities vary by tier.
  • The source does not spell out setup time, repository limits, or all integration details.

FAQ

What does cubic do?

cubic reviews code in GitHub and in the IDE, and it can also run codebase scans that continuously look for bugs and vulnerabilities. The source also mentions AI wiki workflows and background fixes in paid plans.

Does cubic offer a free plan?

The pricing page shows a free Starter plan, a Team plan, a Pro plan, and Enterprise custom pricing. It also says cubic is free for public repositories.

What programming languages does cubic support?

The source says cubic is language-agnostic and supports popular languages including JavaScript, TypeScript, Python, Go, Ruby, Java, and C#.

Which tools does cubic integrate with?

cubic says it connects to tools such as Jira, Linear, Asana, Notion, Confluence, Slack, and email, with MCP mentioned on higher-tier plans for codebase scans and AI wiki workflows.

How does pricing usage work?

The source says reviewed lines reset with the billing period, and reviewed-line usage is based on the PR code changes cubic actually reviews rather than repository size or generated files.

Quick Facts

Category
AI code review platform
Primary use
Review PRs and scan codebases for bugs
Platforms
GitHub and IDE
Pricing
Free plan, paid plans, and enterprise custom pricing
Source domain
mrge.io
Notable workflows
Inline reviews, PR summaries, codebase scans, fix PRs, AI wiki