Can it help me fix 'Field is not shareable' errors?

Yes, the skill is designed to identify shareability conflicts and suggest the correct application of @shareable or @override directives.

What federation standards does this skill support?

It supports both Apollo Federation (v1 and v2) and WunderGraph Cosmo composition rules for building scalable supergraphs.

How does it handle entity resolution?

It provides the correct @key configurations and ensures that required fields are marked as @external when extending entities in secondary subgraphs.

Is this skill useful for migrating between subgraphs?

Absolutely. It assists with the @override directive to safely move field ownership from one subgraph to another during service migrations.

Does it support complex query planning with @requires?

Yes, it guides you through defining dependency fields with @external and mapping them to computed fields using the @requires directive.

GraphQL Federation Expert

Name: GraphQL Federation Expert
Author: wundergraph

bywundergraph

•

API Development

Builds and manages robust GraphQL federation subgraphs with precise directive implementation and composition rule validation.

The GraphQL Federation skill provides specialized support for architecting and implementing distributed GraphQL schemas using Apollo Federation or WunderGraph Cosmo standards. It assists developers in defining entities with @key directives, extending types across multiple subgraphs, and managing complex field relationships with @requires, @provides, and @shareable. By automating the application of federation rules, it helps prevent common composition errors, ensures efficient query planning by the router, and facilitates smooth migrations of field ownership between microservices.

Key Features

016 GitHub stars

02Support for advanced patterns like @interfaceObject and @inaccessible fields

03Correct implementation of all Federation v2 directives (@key, @shareable, @requires, @provides, @override)

04Implementation of federated authorization using @authenticated and @requiresScopes

05Entity extension patterns for cross-subgraph data joining

06Automated debugging and resolution of composition and shareability errors

Use Cases

01Extending existing entities with new fields managed by disparate backend services

02Migrating legacy GraphQL schemas into a federated architecture without breaking changes

03Developing new microservice subgraphs that contribute to a unified Supergraph

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add wundergraph/graphql-federation-skill graphql-federation

For use in Claude.ai and ChatGPT

Download Skill