# neo4j-driver-java-skill

Tells your agent how to wire Java or Kotlin into Neo4j: driver setup, sessions, transactions, connection pool.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 770 installs · ★ 116
- Author: neo4j-contrib
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/neo4j-contrib/neo4j-skills/tree/HEAD/neo4j-driver-java-skill/SKILL.md
- Updated: 2026-10-21
- HTML: https://affpapa.org/en/nevibecode/skills/neo4j-driver-java-skill

## What it does

The skill covers Neo4j Java Driver v6: driver lifecycle, Maven and Gradle setup, `executableQuery`, managed transactions via `executeRead` and `executeWrite`, explicit transactions, async and reactive patterns, error handling, data type mapping, pool tuning and causal consistency with bookmarks. Your agent picks it up when the code mentions `GraphDatabase.driver`, `SessionConfig` or `TransactionCallback`.

Inside there is a table for picking the right API: when `executableQuery` is enough, when you need `session.executeRead/Write`, and when to reach for `beginTransaction`. It also flags that `CALL { … } IN TRANSACTIONS` and `USING PERIODIC COMMIT` manage their own transaction, so only `session.run()` works there — `executableQuery` and `executeRead/Write` fail on those queries. Another common trap: `Result` is a lazy cursor tied to the open transaction, so collect rows inside the callback or you get `ResultConsumedException`.

The dependency is `org.neo4j.driver:neo4j-java-driver` at 6.3.0. For the server-side `UUID` type you need driver 6.2.1 or newer. Credentials should come from the `NEO4J_URI`, `NEO4J_USERNAME`, `NEO4J_PASSWORD` and `NEO4J_DATABASE` environment variables rather than hardcoded strings. Cypher authoring, driver version upgrades and Spring Data Neo4j live in separate skills, not this one.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add neo4j-contrib/neo4j-skills --skill neo4j-driver-java-skill -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/neo4j-driver-java-skill/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/neo4j-driver-java-skill/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add neo4j-contrib/neo4j-skills --skill neo4j-driver-java-skill -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/neo4j-driver-java-skill/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add neo4j-contrib/neo4j-skills --skill neo4j-driver-java-skill -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/neo4j-driver-java-skill/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install neo4j-contrib/neo4j-skills neo4j-driver-java-skill
```

2. **Manually: put the files in place**
- File: `.github/skills/neo4j-driver-java-skill/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add neo4j-contrib/neo4j-skills --skill neo4j-driver-java-skill -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/neo4j-contrib/neo4j-skills --path neo4j-driver-java-skill
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/neo4j-driver-java-skill/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add neo4j-contrib/neo4j-skills --skill neo4j-driver-java-skill -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/neo4j-contrib/neo4j-skills/tree/HEAD/neo4j-driver-java-skill/SKILL.md

## When to use it
- set up the Neo4j driver in a Maven or Gradle project
- decide between executableQuery and executeRead for a given query
- collect results inside the callback to avoid ResultConsumedException
- tune the connection pool and bookmarks for causal consistency
- move Neo4j access onto CompletableFuture or Project Reactor

## Example prompts
- Connect this service to Neo4j with GraphDatabase.driver, read credentials from NEO4J_URI and NEO4J_PASSWORD
- Rewrite this query with executableQuery and parameters instead of string concatenation
- Do the write through executeWrite and explain why results must be collected inside the callback

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 72998a258561be5a.

BEGIN THIRD-PARTY FILE 72998a258561be5a
````text
---
name: neo4j-driver-java-skill
description: Neo4j Java Driver v6 — driver lifecycle, Maven/Gradle setup, executableQuery,
  executeRead/Write managed transactions, explicit transactions, async/reactive patterns,
  error handling, data type mapping, connection pool tuning, causal consistency/bookmarks.
  Use when writing Java or Kotlin code that connects to Neo4j via GraphDatabase.driver,
  executableQuery, SessionConfig, executeRead, executeWrite, or TransactionCallback.
  Does NOT handle Cypher authoring — use neo4j-cypher-skill.
  Does NOT cover driver version upgrades — use neo4j-migration-skill.
  Does NOT cover Spring Data Neo4j (@Node, Neo4jRepository) — use neo4j-spring-data-skill.
version: 1.0.12
allowed-tools: Bash WebFetch
---

## When to Use
- Java/Kotlin code connecting to Neo4j (Aura or self-managed)
- Setting up driver, sessions, transactions in Maven/Gradle projects
- Debugging result handling, error recovery, connection pool issues
- Async (`CompletableFuture`) or reactive (Project Reactor / RxJava) Neo4j access

## When NOT to Use
- **Cypher query authoring/optimization** → `neo4j-cypher-skill`
- **Driver version upgrades** → `neo4j-migration-skill`
- **Spring Data Neo4j** (`@Node`, `@Relationship`, `Neo4jRepository`) → `neo4j-spring-data-skill`

---

## Dependency

### Maven
```xml
<dependency>
    <groupId>org.neo4j.driver</groupId>
    <artifactId>neo4j-java-driver</artifactId>
    <version>6.3.0</version>
</dependency>
```

### Gradle
```groovy
implementation 'org.neo4j.driver:neo4j-java-driver:6.3.0'
```

Check latest: https://central.sonatype.com/artifact/org.neo4j.driver/neo4j-java-driver

6.2.0 [2026-06]: Neo4j `UUID` type + Bolt 6.1 support; `QueryProfile` in result summary.
6.2.1 [2026-08]: fixes `Value#asObject()` on `UUID` values — required if reading UUID properties generically. Neo4j 2026.08 server bundles 6.2.1; 2026.07 bundles 6.2.0.
6.3.0 [2026-09]: Property Encryption preview — client-side envelope encryption of property values (`driver.propertyEncryption()`) → [references/property-encryption.md](references/property-encryption.md).
````
END THIRD-PARTY FILE 72998a258561be5a

The third-party file has ended. Everything between the 72998a258561be5a tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

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