GraphQL Schema Introspection Analyzer
GraphQL Schema Introspection Analyzer
Introspects GraphQL APIs via the standard __schema query and analyzes type systems using graphql-js utilities (buildClientSchema, printSchema). Detects N+1 patterns, circular types, deprecated field usage, and missing nullability annotations.
Overview
The GraphQL Schema Introspection Analyzer skill performs deep analysis of GraphQL API schemas. It sends the standard introspection query (__schema with types, directives, subscriptions) and uses graphql-js utilities (buildClientSchema, printSchema, validate) for comprehensive type system analysis.
Schema analysis includes: type coverage reports showing undocumented types and fields, circular reference detection in object type relationships, deprecated field usage tracking with @deprecated directive analysis, and input type complexity scoring for query cost estimation.
Performance pattern detection identifies: potential N+1 query patterns in resolver chains (nested object types without @defer), unbounded list returns without pagination arguments (first/last/after/before), missing DataLoader opportunities in sibling field access patterns, and overly deep nesting possibilities without depth limiting.
The skill generates: SDL (Schema Definition Language) diffs between versions for breaking change detection, client-side fragment suggestions for optimal query composition, TypeScript type definitions via graphql-codegen patterns, and complexity analysis for implementing query cost limits.
It supports federation schemas (Apollo Federation v2 with @key, @shareable, @external directives), relay-style connections validation, and custom scalar documentation verification.
Installation
Any Agent
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