Individual skill

graphql-and-hidden-parameters

GraphQL and hidden parameter testing playbook. Use when exploring introspection, batching, undocumented fields, hidden parameters, schema abuse, and GraphQL authorization gaps.

knowledge/hack-skills/skills/graphql-and-hidden-parameters/SKILL.md

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# SKILL: GraphQL and Hidden Parameters — Introspection, Batching, and Undocumented Fields

> **AI LOAD INSTRUCTION**: Use this skill when GraphQL exists or when REST documentation suggests optional, deprecated, or undocumented fields. Focus on schema discovery, hidden parameter abuse, and batching as a force multiplier.

## 1. GRAPHQL FIRST PASS

```graphql
query { __typename }
query {
  __schema {
    types { name }
  }
}
```