TypeScript Quality Hooks
A quality check hook for Claude Code that runs TypeScript compilation, ESLint auto-fixing, and Prettier formatting with SHA256 config caching for <5ms validation.
What is TypeScript Quality Hooks?
Claude Code Quality Hooks is a set of hooks for the Claude Code AI assistant that automatically runs quality checks on files after they are edited. It performs TypeScript compilation, ESLint auto-fixing, and Prettier formatting to catch errors before runtime and ensure code quality, using SHA256 config caching to achieve validation in under 5ms for real-time editing workflows.
Developers using Claude Code for editing TypeScript projects in React/Next.js/Vite apps, VS Code extensions, or Node.js applications who want automated, fast quality assurance integrated into their editing process.
It provides immediate, project-aware quality feedback during editing with minimal performance overhead, thanks to its smart caching system, and integrates seamlessly with existing project configurations for TypeScript, ESLint, and Prettier.
Overview
Claude Code Quality Hooks is a set of post-tool-use hooks for the Claude Code AI assistant that performs automated quality checks on edited files. It provides immediate feedback during editing by catching errors before runtime and preventing regressions, with project-aware rules for different development contexts.
Key Features
- TypeScript Compilation — Uses project-specific TypeScript configurations and shows only errors for the edited file.
- ESLint Auto-fixing — Automatically fixes trivial issues and respects the project's ESLint configuration.
- Prettier Formatting — Auto-formats code on save using the project's Prettier config.
- Smart Config Cache — Uses SHA256 hashing to cache TypeScript config mappings for <5ms validation performance on subsequent runs.
- Project-Aware Rules — Enforces different rules per project type (e.g., console allowed in React components but blocked in VS Code extensions).
- Common Issues Detection — Flags console usage, 'as any' casts, and TODO/FIXME comments with configurable severity.
Philosophy
The project prioritizes immediate, non-blocking feedback during real-time editing by leveraging efficient caching and project-specific configurations, ensuring quality checks are fast enough to be seamless.
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