Second
AI agents that automate codebase migrations and maintenance.
About
Second is an AI-native platform for enterprise codebase maintenance and migration. Purpose-built, handcrafted agent modules handle specific migrations such as AngularJS to React 18, Angular 17 upgrades, JavaScript to TypeScript, Enzyme to React Testing Library, and CRA to Next.js, generating an AI-powered migration plan and raising a pull request against a chosen branch.
The agents are stateless and can run on-premise or in your own VPC, with no code storage or training on customer data and SOC 2 Type II compliance (vendor-reported). Beyond migrations, its codebase intelligence scans detect security vulnerabilities, performance issues, and dead code. A free tier covers up to 5MB of code transformed per year; paid plans scale from there.
What it can do
- Purpose-built migration agents (Angular, React, JS to TS, and more)
- AI-generated migration plans with pull request output
- Codebase intelligence scans for vulnerabilities and dead code
- Stateless agents runnable on-premise or in your VPC
- Iterative re-runs and plan modification
Setup
Sign up at second.dev, connect your GitHub repo, pick a maintenance module, review the AI-generated plan, and run the job to get a pull request.
Prerequisites
A GitHub repository; on-premise/VPC option for enterprise.
Use cases
Works with
Trust score — 7/10
Scored 7/10 (metrics tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 107; Trending score 72/100 from researcher assessment.
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.