Borrowing it
Nothing to install: this file belongs to lesleslie/neo4j-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/lesleslie/neo4j-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/lesleslie/neo4j-mcpWrote 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/instructions/lesleslie/neo4j-mcp/claude-md)<a href="https://agentmods.dev/instructions/lesleslie/neo4j-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/lesleslie/neo4j-mcp/claude-md/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/instructions/lesleslie/neo4j-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/lesleslie/neo4j-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01085 | $0.01085 |
| Opus 5 | $0.00543 | $0.00543 |
| Sonnet 5 | $0.00217 | $0.00217 |
| Haiku 4.5 | $0.00109 | $0.00109 |
Grade A, and why
neo4j-mcp CLAUDE.md 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 9d 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 — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with this repository.
For a shorter, tool-neutral bootstrap document, start with AGENTS.md.
Project Overview
neo4j-mcp is an MCP server for Neo4j graph database operations, providing graph query and node/relationship management, and path finding capabilities via the Model Context Protocol.
Key Dependencies: Python 3.13+, mcp-common, neo4j-driver
Core Features
- Cypher Queries: Execute Cypher queries with parameterized inputs
- Node Operations: Create, get, delete, find nodes
- Relationship Operations: Create and delete relationships
- Path Finding: Find paths between nodes
- Schema Inspection: Get database schema info
- Mock Mode: Testing without real Neo4j instance
Most Common Commands
The CLI is built via mcp-common's MCPServerCLIFactory and exposes the
standard Bodai MCP lifecycle surface (no per-flag subcommands). Connection
overrides are environment variables, not CLI flags.
# Start the managed HTTP MCP server
uv run neo4j-mcp start
# Stop / restart / status / health probes
uv run neo4j-mcp stop
uv run neo4j-mcp restart
uv run neo4j-mcp status
uv run neo4j-mcp health
# Custom connection details via environment variables
NEO4J_MCP_URI=bolt://localhost:7687 \
NEO4J_MCP_DATABASE=neo4j \
uv run neo4j-mcp start
# Mock mode (no live Neo4j required)
NEO4J_MCP_MOCK_MODE=true uv run neo4j-mcp start
Critical Rules
1. SECURITY IS NON-NEGOTIABLE
- NEVER expose database passwords in code
- ALWAYS use environment variables for credentials
- NEVER log credential values
- ALWAYS sanitize Cypher query inputs to prevent injection
2. NEO4J CONNECTION MANAGEMENT
- Use connection pooling for performance
- Handle connection errors gracefully
- Close connections properly in cleanup
3. NO PLACEHOLDERS - EVER
- NEVER use dummy node IDs or placeholder data
- ALWAYS use proper variable references
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.
- 9d ago First seen · 140 lines · 1,085 tokens per session scan A da631abcbd14
neo4j-mcp CLAUDE.md is an instructions file published in the GitHub repository lesleslie/neo4j-mcp (1 stars, last pushed 11d ago), licensed BSD-3-Clause. It adds 1,085 tokens to every session, about $0.0054 per session on Opus 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 2026-08-31.
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