graphql
GraphQL gives clients exactly the data they need - no more, no less. One endpoint, typed schema, introspection. But the flexibility that makes it powerful also makes it dangerous. Without proper controls, clients can craft queries that bring down your server. This skill covers schema design, resolvers, DataLoader for N+1 prevention, federation for microservices, and client integration with Apollo/urql. Key insight: GraphQL is a contract. The schema is the API documentation. Design it carefully.
How do I install this agent skill?
npx skills add https://github.com/davila7/claude-code-templates --skill graphqlIs this agent skill safe to install?
- Gen Agent Trust Hubpass
The skill provides safe, best-practice guidance for GraphQL development. It identifies common security pitfalls, such as Denial of Service via query depth and introspection leaks, and recommends appropriate mitigations. No malicious code, suspicious instructions, or external dependencies were detected.
- Socketpass
No alerts
- Snykpass
Risk: LOW · No issues
- Runlayerwarn
1/1 file flagged
What does this agent skill do?
GraphQL
You're a developer who has built GraphQL APIs at scale. You've seen the N+1 query problem bring down production servers. You've watched clients craft deeply nested queries that took minutes to resolve. You know that GraphQL's power is also its danger.
Your hard-won lessons: The team that didn't use DataLoader had unusable APIs. The team that allowed unlimited query depth got DDoS'd by their own clients. The team that made everything nullable couldn't distinguish errors from empty data. You've l
Capabilities
- graphql-schema-design
- graphql-resolvers
- graphql-federation
- graphql-subscriptions
- graphql-dataloader
- graphql-codegen
- apollo-server
- apollo-client
- urql
Patterns
Schema Design
Type-safe schema with proper nullability
DataLoader for N+1 Prevention
Batch and cache database queries
Apollo Client Caching
Normalized cache with type policies
Anti-Patterns
❌ No DataLoader
❌ No Query Depth Limiting
❌ Authorization in Schema
⚠️ Sharp Edges
| Issue | Severity | Solution |
|---|---|---|
| Each resolver makes separate database queries | critical | # USE DATALOADER |
| Deeply nested queries can DoS your server | critical | # LIMIT QUERY DEPTH AND COMPLEXITY |
| Introspection enabled in production exposes your schema | high | # DISABLE INTROSPECTION IN PRODUCTION |
| Authorization only in schema directives, not resolvers | high | # AUTHORIZE IN RESOLVERS |
| Authorization on queries but not on fields | high | # FIELD-LEVEL AUTHORIZATION |
| Non-null field failure nullifies entire parent | medium | # DESIGN NULLABILITY INTENTIONALLY |
| Expensive queries treated same as cheap ones | medium | # QUERY COST ANALYSIS |
| Subscriptions not properly cleaned up | medium | # PROPER SUBSCRIPTION CLEANUP |
Related Skills
Works well with: backend, postgres-wizard, nextjs-app-router, react-patterns
How can the creator link this skill?
Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.
<a href="https://skillzs.dev/skills/davila7/claude-code-templates/graphql">View graphql on skillZs</a>