Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add neo4j-contrib/neo4j-skills --skill neo4j-kafka-skillgit clone --depth 1 https://github.com/neo4j-contrib/neo4j-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/neo4j-contrib/neo4j-skills/neo4j-kafka-skill)<a href="https://agentmods.dev/skills/neo4j-contrib/neo4j-skills/neo4j-kafka-skill"><img src="https://agentmods.dev/badge/skills/neo4j-contrib/neo4j-skills/neo4j-kafka-skill/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/neo4j-contrib/neo4j-skills/neo4j-kafka-skill"><img src="https://agentmods.dev/badge/skills/neo4j-contrib/neo4j-skills/neo4j-kafka-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00178 | $0.04167 |
| Opus 5.5 | $0.00071 | $0.01667 |
| Sonnet 5.5 | $0.00036 | $0.00833 |
| Haiku 4.5 | $0.00018 | $0.00417 |
Grade A, and why
neo4j-kafka-skill scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 449 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Neo4j Kafka Skill
When to Use
- Writing Kafka events into Neo4j (sink connector — Cypher, Pattern, CDC, CUD strategies)
- Streaming Neo4j changes to Kafka topics (source connector — CDC or query-based)
- Querying Neo4j change events natively without Kafka (
db.cdc.query) - Configuring Confluent Cloud managed Neo4j sink connector
- Setting up schema registry (Avro/JSON Schema) for typed Kafka messages
- Enabling exactly-once semantics or dead-letter queue on sink
When NOT to Use
- Cypher query authoring →
neo4j-cypher-skill - Bulk CSV/JSON file import →
neo4j-import-skill - GDS algorithms →
neo4j-gds-skill - Live app write patterns →
neo4j-cypher-skill
Decision Table — Which connector strategy?
| Use case | Strategy |
|---|---|
| Custom transformation of Kafka payload → graph | Sink: Cypher |
| Mirror another Neo4j CDC source | Sink: CDC (schema or source-id sub-strategy) |
| Map Kafka JSON fields to graph nodes/rels with no code | Sink: Pattern |
| Consume pre-formatted CUD JSON messages | Sink: CUD |
| Stream all Neo4j changes to Kafka (real-time) | Source: CDC (Neo4j 5.13+ EE/Aura BC/VDC) |
| Stream specific query results on a schedule | Source: Query |
| Consume CDC events in-process, no Kafka | Native CDC API (db.cdc.query) |
Prerequisites
- Neo4j Connector for Kafka ≥ 5.5.2 (download from neo4j.com/labs/kafka or Confluent Hub) — 5.5.2 processes incoming messages per partition instead of per topic; 5.5.1 forces static labels in generated queries
- Kafka Connect ≥ 3.x or Confluent Platform ≥ 7.x
- For CDC source/sink: Neo4j 5.13+ Enterprise Edition, AuraDB Business Critical, or AuraDB VDC
- For query source: any Neo4j edition
- Java 11+
Core Connection Config (all connectors)
{
"neo4j.uri": "neo4j+s://your-instance.databases.neo4j.io:7687",
"neo4j.authentication.type": "BASIC",
"neo4j.authentication.basic.username": "neo4j",
"neo4j.authentication.basic.password": "${file:/opt/secrets.properties:neo4j.password}",
"neo4j.database": "neo4j"
}
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 449 lines · 178 tokens per session scan A bbec729a4ac5
neo4j-kafka-skill is a skill published in the GitHub repository neo4j-contrib/neo4j-skills (116 stars, last pushed yesterday), licensed MIT. It adds 178 tokens to every session and 4,167 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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