How to Build an AI Code Review Bot in 30 Minutes with Vercel Eve
Automate your PR review process with Merge Mommy, an AI-powered review bot.
1The New Challenge of AI Code Generation
The increasing use of AI in coding has created a bottleneck in PR (Pull Request) queues. Claire Vo solved this by developing Merge Mommy, a Vercel Eve agent that scores each PR across six risk dimensions. It auto-approves low-risk PRs and flags those needing human review via Slack.
2Rapid Solution with Vercel Eve
Vercel Eve framework offers a simple way to deploy AI agents in Slack and GitHub. Vo built Merge Mommy in a single Codex session. The SOC 2-compliant bot automates PR reviews, boosting developer productivity. Intercom achieved similar results, speeding up PR approvals by 5x.
3Six-Point Risk Scoring Model
Merge Mommy evaluates PRs on six criteria: blast radius, reversibility, data security, ops impact, verification gap, and change surface. Low-risk PRs get auto-approved, while high-risk ones trigger Slack alerts. This model mirrors best practices from companies like Intercom.
4Single-Prompt Development
Vo created the bot's core functionality with one Codex prompt. Merge Mommy can read, score, approve, or escalate PRs. Chrome integration handles Slack and GitHub configurations automatically, eliminating manual setup. The entire bot was built faster than writing traditional CI/CD rules.
5SOC 2-Compliant Auto-Approval
Auto-approved PRs remain SOC 2 compliant when the process is auditable and aligns with risk policies. Merge Mommy maintains full decision logs for transparency. This approach balances security requirements with developer velocity - a key concern in AI-assisted development.
6Two-Click Merges in Slack
A custom Slack integration enables two-click merges for low-risk PRs, bypassing manual review. Inspired by Intercom's implementation, this system has proven to reduce revert rates while maintaining code quality. Developers save hours weekly on routine PR management.
7Live PR Demonstrations
Vo showcased three live PR examples. A low-risk CSS change was auto-approved. A medium-risk API modification requested additional context. A high-risk database schema change triggered immediate Slack alerts. Each demonstrated the bot's nuanced decision-making capabilities.
8Revolutionizing Code Reviews
Merge Mommy represents a paradigm shift in AI-assisted code review. It fundamentally changes how developers manage PR queues. With Vercel Eve's simplicity and Codex's power, similar bots can now be built in under 30 minutes - faster than most team meetings about PR backlogs.