Use when configuring tsconfig.json, resolving TypeScript assignability errors or tuning complex types, async code and module performance. Not for framework-specific React behavior or test-runner APIs.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# TypeScript Best Practices
Comprehensive performance optimization guide for TypeScript applications. Contains 42 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
## When to Apply
Reference these guidelines when:
- Configuring tsconfig.json for a new or existing project
- Writing complex type definitions or generics
- Optimizing async/await patterns and data fetching
- Organizing modules and managing imports
- Reviewing code for compilation or runtime performance
## Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|----------|----------|--------|--------|
| 1 | Type System Performance | CRITICAL | `type-` |
| 2 | Compiler Configuration | CRITICAL | `tscfg-` |
| 3 | Async Patterns | HIGH | `async-` |
| 4 | Module Organization | HIGH | `module-` |
| 5 | Type Safety Patterns | MEDIUM-HIGH | `safety-` |
| 6 | Memory Management | MEDIUM | `mem-` |
| 7 | Runtime Optimization | LOW-MEDIUM | `runtime-` |
| 8 | Advanced Patterns | LOW | `advanced-` |
## Table of Contents
1. [Type System Performance](references/_sections.md#1-type-system-performance) — **CRITICAL**
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Source
GitHub
cratis/ai · 4 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_775y7mdjpufg7k5k
GET https://markdownregistry.com/api/v1/resolve?ref=cratis/ai/typescript
GET https://markdownregistry.com/api/v1/blob/ec831625646f418800fd88681dba931ba629b9cd60d821669a5cdf55c432efe3
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