// SCAN REPORT

Ariadne

5 tools. 2 can modify or destroy data without limits.

2 write tools that can modify data. Rate limits recommended.

Last updated: 3 Jul 2026

2 can modify or destroy data

3 read-only

5 tools total

Community server · catalogue entry verified 03/07/2026

How to control Ariadne ↓

TOOL MAP

What Ariadne exposes to your agents

Read (3) Write / Execute (2) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Ariadne tools

Execute · Medium rescan This tool initiates a re-scan/re-indexing process of the Ariadne service graph, which is an active operation with side effects (rebuilding the index). Write · Low rate_result This tool writes feedback/rating data to the system.

2 of Ariadne's 5 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Ariadne

PolicyLayer is an MCP gateway — it sits between your AI agents and Ariadne, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "rate_result": {
    "limits": [
      {
        "counter": "rate_result_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "expand_node": {
    "limits": [
      {
        "counter": "expand_node_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Ariadne — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON ARIADNE →

Instant setup, no code required.

FULL CATALOGUE

All 5 Ariadne tools

EXECUTE 1 tools

Execute rescan Refresh the Ariadne index from inside the conversation. Call this

WRITE 1 tools

Write rate_result Record whether Ariadne results were useful. Call this after using

READ 3 tools

Read expand_node One-hop neighbours of a known node (endpoint / Kafka topic / Read query_chains Query cross-service chains by business term or endpoint name. Read show_help Return a quick setup and usage guide for Ariadne. Call this first

FAQ

Questions about Ariadne

How do I prevent bulk modifications through Ariadne? +

The Ariadne server has 1 write tools including rate_result. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Ariadne.

How many tools does the Ariadne MCP server expose? +

5 tools across 1 categories: Read. 3 are read-only. 2 can modify, create, or delete data.

How do I enforce a policy on Ariadne? +

Register the Ariadne MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Ariadne tool call.

Deterministic rules across all 5 Ariadne tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON ARIADNE →

Instant setup, no code required.

5 Ariadne tools catalogued and risk-classified — across an index of 43,000+ MCP servers.