Performance

Skill: MongoDB Schema Design

by MongoDB

New

MongoDB's official data-modelling skill — embed-vs-reference decisions, relationship patterns and the anti-patterns that quietly wreck performance and cost.

Skill: OpenSearch Trace Analytics

by OpenSearch Project

New

Investigate OpenTelemetry traces stored in OpenSearch — slow and error spans, reconstructed trace trees, service maps, plus agent invocation and token-usage analysis.

Skill: ClickHouse Best Practices

by ClickHouse Inc

New

ClickHouse's official agent skill: 31 rules for primary keys, data types, JOINs, batching and partitioning that an agent must check and cite before advising on a schema or query.

Skill: Vercel React Best Practices

by Vercel

Vercel Engineering's React and Next.js performance playbook as an agent skill — 70 rules across 8 categories, ordered by impact, for writing and refactoring fast components.

Skill: Django Performance Review

by Sentry

Sentry's Django performance review skill — hunts N+1 queries, unbounded querysets, missing indexes and write loops, and reports only findings it can prove.

Skill: .NET Performance Analysis

by Microsoft

The .NET team's official skill for scanning C# against ~50 performance anti-patterns across async, memory, strings, collections, LINQ, regex and I/O.

Skill: Engineering Code Review

by Sentry

Review pull requests against a real engineering practice — security, performance, testing, and design, in that order.

Skill: Web Performance Auditing

by Cloudflare

Audit Core Web Vitals with real measurements via Chrome DevTools — then fix what the numbers actually point to.

Skill: Vercel Optimize

by Vercel

Vercel's official optimization skill: collects real production metrics first, then returns ranked, citation-checked cost and performance fixes.

MCP: Chrome DevTools MCP

by Google Chrome DevTools team

Google's official MCP server for driving and inspecting a real Chrome browser — automation, debugging, and performance traces.