Drift

Drift is a code coherence monitor designed to catch problems that AI coding tools introduce silently—pattern fragmentation, architecture violations, and near-duplicate code that pass linters and type checkers. It analyzes Python codebases deterministically using AST analysis and git history, without requiring an LLM. The tool works as a Claude Code plugin with a two-line install and no dependencies, or as a standalone analyzer via pip.

Built for developers using AI agents to generate code, Drift provides 24 signals across analyzed files and achieves 77–95% precision. It integrates agent-natively as an MCP tool, runs in-browser for public repositories, and can be installed locally. The maker built it as a Claude Code plugin that answers in under 100 milliseconds.