MCPInstall

neo4j-graphql-skill

Build and configure a GraphQL API backed by Neo4j using @neo4j/graphql v7 (current) or v5 (LTS). Covers Neo4jGraphQL constructor, getSchema(), assertIndexesAndConstraints(), type definitions with @node, @relationship (IN/OUT/UNDIRECTED), @cypher for custom resolvers, @authorization/@authentication for JWT/JWKS security, auto-generated queries/mutations, OGM programmatic access, subscriptions via CDC, and Apollo Federation. Use when writing typeDefs, securing fields, or wiring Neo4j to Apollo Server. Does NOT handle raw Cypher outside resolvers — use neo4j-cypher-skill. Does NOT cover Spring Data Neo4j entity mapping — use neo4j-spring-data-skill.

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/neo4j-contrib/neo4j-skills --skill neo4j-graphql-skill
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads neo4j-graphql-skill automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

When to Use

  • Creating a GraphQL API from a Neo4j graph schema with @neo4j/graphql
  • Writing type definitions with @relationship, @cypher, @authorization directives
  • Using OGM for server-side programmatic Neo4j access (bypasses GraphQL auth)
  • Configuring auto-generated queries, mutations, subscriptions
  • Securing types/fields with JWT or JWKS-based @authorization rules
  • Migrating from v5/v6 to v7 (breaking changes below)

When NOT to Use

  • Raw Cypher queries outside GraphQL resolvers → neo4j-cypher-skill
  • Spring Data Neo4j / Java entity mapping → neo4j-spring-data-skill
  • Generic GraphQL without Neo4j — outside scope

Version Matrix

VersionStatusNotes
v7Current — use ≥ 7.6.2@node required; options removed; explicit eq syntax
v5LTS — use ≥ 5.12.15Older syntax; options: {limit, offset, sort} still valid

Default to v7 unless codebase is on v5. Upgrade past these security patches before shipping auth:

FixFixed in
Subscriptions accepted an unverified JWT from WebSocket connectionParams (auth/authz bypass)7.5.6 / 5.12.14
Field-level @authentication on a root custom-resolver field ignored when the operation type also had type-level @authentication (privilege escalation)7.6.0 / 5.12.15
@authorization rules not applied on create-relationship operations7.6.2

Step 1 — Install

npm install @neo4j/graphql neo4j-driver graphql @apollo/server

For subscriptions (CDC required):

npm install ws graphql-ws express body-parser cors

Step 2 — Minimal Server Setup

import { ApolloServer } from '@apollo/server';
import { startStandaloneServer } from '@apollo/server/standalone';
import { Neo4jGraphQL } from '@neo4j/graphql';
import neo4j from 'neo4j-driver';

const typeDefs = `#graphql
  type Movie @node {
    id: ID! @id
    title: String!
    actors: [Person!]! @relationship(type: "ACTED_IN", direction: IN)
  }

  type Person @node {
    id: ID! @id
    name: String!
    movies: [Movie!]! @relationship(type: "ACTED_IN", direction: OUT)
  }
`;

const driver = neo4j.driver(
  process.env.NEO4J_URI,
  neo4j.auth.basic(process.env.NEO4J_USERNAME, process.env.NEO4J_PASSWORD)
);

const neoSchema = new Neo4jGraphQL({ typeDefs, driver });

// assertIndexesAndConstraints syncs @id → UNIQUE constraints; wrap in try/catch
await neoSchema.assertIndexesAndConstraints({ options: { create: true } });

const server = new ApolloServer({ schema: await neoSchema.getSchema() });

const { url } = await startStandaloneServer(server, {
  context: async ({ req }) => ({ token: req.headers.authorization }),
  listen: { port: 4000 },
});

Key Directives

@node (v7 required)

type Product @node {
  id: ID! @id
  name: String!
}

# Custom label (default = type name)
type Article @node(labels: ["Post", "Content"]) {
  title: String!
}

@relationship — Full Syntax

type Person @node {
  # direction: OUT = (this)-[:KNOWS]->(other)
  friends: [Person!]! @relationship(type: "KNOWS", direction: OUT)

  # direction: IN = (other)-[:ACTED_IN]->(this)
  actedIn: [Movie!]! @relationship(type: "ACTED_IN", direction: IN)

  # direction: UNDIRECTED = matches both directions (use sparingly — double-counts)
  colleagues: [Person!]! @relationship(type: "COLLEAGUE_OF", direction: UNDIRECTED)

  # Relationship with properties — reference an @relationshipProperties interface
  reviews: [Movie!]! @relationship(type: "REVIEWED", direction: OUT, properties: "ReviewedProps")
}

interface ReviewedProps @relationshipProperties {
  rating: Int!
  date: Date
}

Querying Relationship Properties — Connection API

For each relationship with properties:, a {field}Connection field is auto-generated. Access rel properties via actorsConnection.edges.properties, not via actors:

query {
  movies(where: { title: { eq: "The Matrix" } }) {
    title
    actorsConnection {
      edges {
        properties { role }   # maps to @relationshipProperties interface
        node { name }
      }
    }
  }
}

@cypher — Custom Resolver

type Person @node {
  name: String!

  # columnName must exactly match the RETURN alias — mismatch returns null silently
  friendCount: Int
    @cypher(
      statement: "MATCH (this)-[:KNOWS]->(f:Person) RETURN count(f) AS friendCount"
      columnName: "friendCount"
    )

  recommendedMovies: [Movie!]!
    @cypher(
      statement: """
        MATCH (this)-[:WATCHED]->(m:Movie)<-[:WATCHED]-(o:Person)-[:WATCHED]->(rec:Movie)
        WHERE NOT (this)-[:WATCHED]->(rec)
        RETURN rec
      """
      columnName: "rec"
    )
}

# @cypher on Query field — custom top-level query
type Query {
  topRatedMovies(limit: Int = 10): [Movie!]!
    @cypher(
      statement: "MATCH (m:Movie) WHERE m.rating IS NOT NULL RETURN m ORDER BY m.rating DESC LIMIT $limit"
      columnName: "m"
    )
}

this refers to the current node in field-level @cypher. Parameters are passed as $paramName.

@cypher — Field Arguments and extend type

# extend type adds computed fields without modifying the base type definition
extend type Movie @node {
  avgRating: Float
    @cypher(statement: "MATCH (this)<-[r:RATED]-(:User) RETURN avg(r.rating) AS result", columnName: "result")

  # Field arguments passed as Cypher params; always provide default to avoid null
  recommended(limit: Int = 3): [Movie!]!
    @cypher(
      statement: "MATCH (this)<-[:RATED]-(u:User)-[:RATED]->(rec:Movie) WITH rec, COUNT(u) AS score ORDER BY score DESC RETURN rec LIMIT $limit"
      columnName: "rec"
    )
}

@id and @timestamp

type Post @node {
  id: ID! @id                          # auto-generates UUID; creates UNIQUE constraint
  createdAt: DateTime! @timestamp(operations: [CREATE])
  updatedAt: DateTime @timestamp(operations: [CREATE, UPDATE])
  title: String!
}

@alias — Map GraphQL field to Neo4j property

type User @node {
  id: ID! @id
  email: String! @alias(property: "emailAddress")  # GraphQL: email → DB: emailAddress
}

@fulltext and @vector

Index must exist in Cypher before use. Phrase-capable @vector indexes accept maxPhraseLength [7.6.0] to cap embedding cost. A provider without matching features.vector config fails at schema build [7.6.1]. Full syntax, generated query shapes, provider config: references/search-directives.md.


Security — @authentication and @authorization

Step 1: Configure JWT in constructor

// Symmetric secret
const neoSchema = new Neo4jGraphQL({
  typeDefs,
  driver,
  features: {
    authorization: { key: process.env.JWT_SECRET },
  },
});

// JWKS endpoint (production)
const neoSchema = new Neo4jGraphQL({
  typeDefs,
  driver,
  features: {
    authorization: {
      key: { url: 'https://myapp.com/.well-known/jwks.json' },
    },
  },
});

Step 2: Pass token in context

context: async ({ req }) => ({ token: req.headers.authorization }),
// Or pass pre-decoded JWT:
context: async ({ req }) => ({ jwt: myDecodeJwt(req.headers.authorization) }),

Step 3: Apply @authentication and @authorization

# Require auth on all operations for a type
type Post @node
  @authentication
  @authorization(filter: [{ where: { node: { author: { id: { eq: "$jwt.sub" } } } } }]) {
  title: String!
  author: User! @relationship(type: "AUTHORED", direction: IN)
}

# requireAuthentication: false = allow public access without JWT
type Article @node
  @authorization(filter: [
    { requireAuthentication: false, where: { node: { published: { eq: true } } } }
    { where: { node: { author: { id: { eq: "$jwt.sub" } } } } }
  ]) {
  title: String!
  published: Boolean!
}

# validate (throws error) vs filter (silently hides data)
type BankAccount @node
  @authorization(validate: [{
    when: [BEFORE],
    where: { node: { owner: { id: { eq: "$jwt.sub" } } } }
  }]) {
  balance: Float!
}

# Role-based with custom JWT claims
type JWT @jwt {
  roles: [String!]! @jwtClaim(path: "myApp.roles")
}

type AdminReport @node
  @authentication(operations: [READ], jwt: { roles: { includes: "admin" } }) {
  data: String!
}

BEFORE vs AFTER: CREATE supports only AFTER; READ supports only BEFORE.


Auto-Generated Operations

OperationGenerated NameExample
Query all{plural}movies(where, sort, limit, offset)
Cursor pagination{plural}ConnectionmoviesConnection(first, after, where, sort)
Createcreate{Plural}createMovies(input: [MovieCreateInput!]!)
Updateupdate{Plural}updateMovies(where, update)
Deletedelete{Plural}deleteMovies(where, delete)

v7 Filter Syntax (explicit eq)

# v7: explicit eq required
query {
  movies(where: { title: { eq: "The Matrix" } }) {
    title
    actors { name }
  }
}

# Sort and paginate (v7: direct args, not options wrapper)
query {
  movies(sort: [{ title: ASC }], limit: 10, offset: 0) {
    title
  }
}

Nested Mutations

mutation {
  createMovies(input: [{
    title: "Inception"
    actors: {
      create: [{ node: { name: "Leonardo DiCaprio" } }]
      connect: { where: { node: { name: { eq: "Joseph Gordon-Levitt" } } } }
    }
  }]) {
    movies { id title }
  }
}

OGM — Programmatic Access

OGM bypasses GraphQL authorization — use only in trusted server-side contexts.

import { OGM } from '@neo4j/graphql-ogm';

const ogm = new OGM({ typeDefs, driver });
await ogm.init();  // must await before using models

const Movie = ogm.model('Movie');

// find
const movies = await Movie.find({
  where: { title: { eq: 'The Matrix' } },
  selectionSet: `{ id title actors { name } }`,
});

// create
const { movies: created } = await Movie.create({
  input: [{ title: 'Dune', actors: { create: [{ node: { name: 'Timothée Chalamet' } }] } }],
});

// update
await Movie.update({
  where: { id: { eq: movieId } },
  update: { title: { set: 'Dune: Part One' } },
});

// delete
await Movie.delete({ where: { id: { eq: movieId } } });

Install separately: npm install @neo4j/graphql-ogm


Subscriptions (CDC Required)

Requires Neo4j CDC enabled in FULL mode. See CDC docs.

const neoSchema = new Neo4jGraphQL({
  typeDefs,
  driver,
  features: { subscriptions: true },
});

Authenticate subscriptions with a verified token in the WebSocket context; a pre-decoded jwt is trusted only when set server-side (7.5.6 / 5.12.14 stopped trusting client-supplied connectionParams JWTs).

subscription {
  movieCreated(where: { title: { eq: "The Matrix" } }) {
    createdMovie { title }
  }
}
# Also: movieUpdated, movieDeleted

Schema Control Directives

type ReadOnlyData @node @mutation(operations: []) { value: String! }  # disable mutations

type HeavyDoc @node {
  id: ID! @id
  content: String! @filterable(byValue: false) @sortable(enabled: false)  # perf guard
  title: String!
}

type Series @node @plural(value: "seriesList") { title: String! }  # irregular plural fix

Common Errors

ErrorCauseFix
Type 'X' not foundMissing @node on type (v7)Add @node to every node type
@cypher field returns nullcolumnName mismatch with RETURN aliasMatch columnName exactly to RETURN alias
Relationship direction mismatchBoth sides declare same directionInverse: if A has direction: OUT, B must have direction: IN
assertIndexesAndConstraints throws@id constraint not in DBAdd { options: { create: true } } or run CREATE CONSTRAINT manually
Auth not appliedJWT not in contextPass token: req.headers.authorization in context function
0 results with valid datav7 filter missing eqUse { field: { eq: value } } not { field: value }
connectOrCreate not foundRemoved in v7Use connect + create separately
Memory errors on large mutationsComplex Cypher generationBatch mutations; increase server.memory.heap.max_size
@subscription not generatingv7 requires explicit enableAdd features: { subscriptions: true } to constructor

v6 → v7 Breaking Changes Summary

v6v7
@node optional@node required on every node type
options: { limit, sort }limit, sort as direct args
{ field: value } filter{ field: { eq: value } }
connectOrCreate nested mutationRemoved — use connect + create
directed arg on queriesqueryDirection in @relationship
Single rel fields actor: PersonMust use list actors: [Person!]!
@private directiveRemoved
@unique directiveRemoved

References


Checklist

  • @node on every GraphQL type representing a Neo4j node (v7 hard requirement)
  • @id on identity fields (triggers CREATE CONSTRAINT via assertIndexesAndConstraints)
  • assertIndexesAndConstraints called on startup with try/catch
  • @relationship direction correct: OUT = arrow leaves this node, IN = arrow enters
  • Both sides of relationship declared with inverse directions
  • @cypher columnName matches RETURN alias exactly
  • JWT secret or JWKS URL in features.authorization.key; token passed in context
  • @authorization filter vs validate chosen deliberately (silent hide vs thrown error)
  • v7: filters use explicit { field: { eq: value } } syntax
  • v7: limit/sort passed as direct query args (not options wrapper)
  • OGM: await ogm.init() called before any ogm.model() usage
  • Subscriptions: CDC enabled in FULL mode before enabling features.subscriptions
  • @neo4j/graphql ≥ 7.6.2 (v7) or ≥ 5.12.15 (LTS) — earlier versions have auth bypasses
  • .env holds credentials; .env in .gitignore

FAQ

What does the neo4j-graphql-skill skill do?

Build and configure a GraphQL API backed by Neo4j using @neo4j/graphql v7 (current) or v5 (LTS). Covers Neo4jGraphQL constructor, getSchema(), assertIndexesAndConstraints(), type definitions with @node, @relationship (IN/OUT/UNDIRECTED), @cypher for custom resolvers, @authorization/@authentication for JWT/JWKS security, auto-generated queries/mutations, OGM programmatic access, subscriptions via CDC, and Apollo Federation. Use when writing typeDefs, securing fields, or wiring Neo4j to Apollo Server. Does NOT handle raw Cypher outside resolvers — use neo4j-cypher-skill. Does NOT cover Spring Data Neo4j entity mapping — use neo4j-spring-data-skill.

How do I install neo4j-graphql-skill?

Run npx skills add https://github.com/neo4j-contrib/neo4j-skills --skill neo4j-graphql-skill in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/neo4j-graphql-skill/ (personal) or .claude/skills/neo4j-graphql-skill/ (project).

Which AI agents can use neo4j-graphql-skill?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is neo4j-graphql-skill safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains neo4j-graphql-skill?

It is published by neo4j-contrib in neo4j-contrib/neo4j-skills. It has 816 recorded installs.

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