joshuakgoldberg/rewrite

ESLint is a widely used tool that checks JavaScript code for errors and enforces consistent style rules, helping developers catch mistakes before they become bugs. This repository is where the next version of ESLint is being built from the ground up. Rather than shipping as one large tool, the rewrite is split across several smaller packages, each handling a specific job. For example, @eslint/core provides the foundation, @eslint/config-array and @eslint/config-helpers deal with how configuration rules are set up, and @eslint/plugin-kit gives developers building blocks to create their own linting plugins. There's also @eslint/migrate-config to help move old configurations to the new format, and @eslint/mcp which appears to add some form of tool integration, though the README doesn't go into detail on what each package does individually. This restructured approach would appeal to developers who already use ESLint or are building tooling on top of it. For instance, a team wanting to write custom linting rules for their company's code standards could use the plugin toolkit, while someone upgrading from an older ESLint setup could lean on the migration helper to smooth the transition. What's notable here is the decision to break ESLint into focused packages rather than keeping it as a single monolithic tool. This kind of restructuring typically makes it easier for different pieces to evolve independently and for other tools to adopt specific parts without buying into the whole system. The README is otherwise sparse on technical rationale, so the deeper motivations and tradeoffs behind the rewrite aren't spelled out, but the package breakdown itself signals a move toward modularity and flexibility.