Guide for authoring Apollo Federation subgraph schemas. Use this skill when: (1) creating new subgraph schemas for a federated supergraph, (2) defining or modifying entities with @key, (3) sharing types/fields across subgraphs with @shareable, (4) working with federation
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Guide for authoring Apollo Federation subgraph schemas. Use this skill when: (1) creating new subgraph schemas for a federated supergraph, (2) defining or modifying entities with @key, (3) sharing types/fields across subgraphs with @shareable, (4) working with federation
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📦 Ships with apollo-skills
</> SKILL.md
apollo-federation.SKILL.md
---name: apollo-federation
description: >
Guide for authoring Apollo Federation subgraph schemas. Use this skill when:
(1) creating new subgraph schemas for a federated supergraph,
(2) defining or modifying entities with @key,
(3) sharing types/fields across subgraphs with @shareable,
(4) working with federation directives (@external, @requires, @provides, @override, @inaccessible),
(5) troubleshooting composition errors,
(6) any task involving federation schema design patterns.
license: MIT
compatibility: Works with any Federation 2.x compatible subgraph library (Apollo Server, GraphQL Yoga, etc.)
metadata:
author: apollographql
version: "1.0.1"
allowed-tools: Bash(rover:*) Read Write Edit Glob Grep
---# Apollo Federation Schema Authoring
Apollo Federation enables composing multiple GraphQL APIs (subgraphs) into a unified supergraph.
## Federation 2 Schema Setup
Every Federation 2 subgraph must opt-in via `@link`:
```graphql
extend schema
@link(url: "https://specs.apollo.dev/federation/v2.12",
import: ["@key", "@shareable", "@external", "@requires", "@provides"])
