Graphql Expert

This is a comprehensive GraphQL development skill that emphasizes test-driven development and anti-hallucination verification. Before writing any code, it requires checking official Apollo Server 4+ docs and GraphQL specs to avoid common pitfalls like invented directives or fake DataLoader methods. The workflow starts with failing tests using pytest and ariadne, then implements schema-first design with performance optimizations like DataLoader batching and query complexity limits. The examples show real resolver patterns with proper mocking and authorization checks. Use this when you need production-grade GraphQL APIs with proper security boundaries and want to avoid the schema errors that come from hallucinated Apollo configs. The security-first approach treats query depth attacks and field authorization as baseline requirements rather than afterthoughts.

skills.sh installs: 218
GitHub stars: 48
last updated: Aug 21, 2026

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Install

$ npx -y skills add martinholovsky/claude-skills-generator --skill graphql-expert --agent claude-code

Installs into .claude/skills of the current project.

Files

GraphQL API Development Expert

0. Anti-Hallucination Protocol

🚨 MANDATORY: Read before implementing any code using this skill

Verification Requirements

When using this skill to implement GraphQL features, you MUST:

Verify Before Implementing
- ✅ Check official Apollo Server 4+ documentation
- ✅ Confirm GraphQL spec compliance for directives/types
- ✅ Validate DataLoader patterns are current
- ❌ Never guess Apollo Server configuration options
- ❌ Never invent GraphQL directives
- ❌ Never assume federation resolver syntax
Use Available Tools
- 🔍 Read: Check existing codebase for GraphQL patterns
- 🔍 Grep: Search for similar resolver implementations
- 🔍 WebSearch: Verify APIs in Apollo/GraphQL docs
- 🔍 WebFetch: Read official Apollo Server documentation
Verify if Certainty < 80%
- If uncertain about ANY GraphQL API/directive/config
- STOP and verify before implementing
- Document verification source in response
- GraphQL schema errors break entire API - verify first