Optimization patterns (lazy loading, caching, batching), database and frontend performance. Use when designing or reviewing for performance.
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
# Performance Guidelines
## Optimization Patterns
- **Lazy Loading**: Load resources/modules only when needed.
- **Caching**: Use caching layers (Redis, Memory) for expensive operations.
- **Batching**: Batch database/API requests where possible.
## Database
- Ensure indexes exist on queried columns.
- Avoid N+1 query problems (use `include` or batch loading).
## Frontend
- Minimize bundle size.
- Optimize images (WebP, lazy load).
- Use virtualization for large lists.
The line at the top of this page pins the label git:20261004.8dfccd1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_ovyjfik3pacs4mqp
GET https://markdownregistry.com/api/v1/resolve?ref=arcanada-one/datarim/performance
GET https://markdownregistry.com/api/v1/blob/263f0700a258d43b4f7ef4ab53ddd671327ab21aadd00c8d5aa0255bfbcf49bf
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