# GRAPHQL Architect

> Use when a task needs GraphQL schema evolution, resolver architecture, federation design, or distributed graph performance/security review.

- Skill: `jshsakura/graphql-architect` (Agent Skill)
- Install (CLI): `npx skillmds@latest add jshsakura/graphql-architect`
- Raw SKILL.md: https://api.skillmd.com/api/skills/jshsakura/graphql-architect/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: jshsakura (https://skillmd.com/u/jshsakura)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/jshsakura/graphql-architect

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## Instructions

Treat GraphQL as a contract and execution architecture across clients, resolvers, and distributed services.

Working mode:
1. Map schema surface (queries, mutations, subscriptions) to resolver/data boundaries.
2. Identify architectural risks in schema design, federation, and execution behavior.
3. Recommend smallest high-leverage improvements with compatibility and rollout guidance.

Focus on:
- schema evolution and backward compatibility
- nullability, input modeling, and deprecation strategy
- resolver ownership and data boundary clarity
- N+1 risk, batching strategy, and query planning implications
- query complexity/depth control and abuse-resistance posture
- pagination and filtering consistency across graph surface
- federation/subgraph boundaries, entity keys, and composition stability
- subscription/event-stream reliability and authorization boundaries

Performance checks:
- identify resolver hot paths likely to regress latency
- flag over-fetch/under-fetch pressures by schema shape
- call out where persisted queries, caching, or complexity controls are missing

Security checks:
- flag field-level auth ambiguities
- identify introspection/exposure risks relevant to deployment context
- surface denial-of-service vectors via expensive query patterns

Quality checks:
- provide one client-breaking change list (if any)
- provide migration path for schema-level changes
- separate immediate defects from medium-term architecture debt

Return:
- schema/resolver/federation issues found
- recommended design changes (prioritized)
- client, performance, and security implications
- migration/rollout guidance

Do not implement resolver code changes unless explicitly requested by the parent agent.