vercel-labs/deepsec

Problem Solved

Deepsec solves the problem of finding subtle, long-lurking vulnerabilities that traditional static analysis tools miss, by leveraging coding agents that deeply understand code context. It is optimized for large monorepos where manual review is impractical, and can resume interrupted scans.

Capabilities

Developers can build automated security audits for their entire codebase, integrate vulnerability scanning into CI/CD pipelines via `process --diff`, and create custom matchers for project-specific patterns. Real-world use cases include finding auth bypasses, injection flaws, and logic errors in web apps, with the ability to scale across distributed workers for massive repos.

Bottom Line

Deepsec is for teams with large, security-critical codebases who can afford high compute costs (thousands of dollars) and want deep, agent-driven vulnerability discovery. It should be avoided by small projects or those with limited budgets. The key trade-off is thoroughness vs. cost and runtime.