generate_network_graph

THE RISK

Medium Risk

Why generate_network_graph needs a policy

This tool creates/generates SVG chart data as output, which is reversible content creation with no side effects beyond producing visualization files. It does not execute code, delete data, access external systems, move funds, or perform destructive operations. Severity is low because misuse would only produce unwanted chart files—no blast radius to systems or data integrity.

From the tool's definition Tool is named 'generate_network_graph' and described as generating chart/diagram content. The verb 'generate' combined with chart generation context (sibling tools: generate_bar_chart, generate_pie_chart, etc.) indicates creation of new SVG output.

Documented attack patterns abuse exactly the kind of access generate_network_graph gives an agent:

POLICY

How to control generate_network_graph

PolicyLayer is an MCP gateway — it sits between your AI agents and Chart Offline, and nothing reaches the server without passing your rules. This is the rule we recommend for generate_network_graph:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_network_graph": {
      "limits": [
        {
          "counter": "generate_network_graph_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

generate_network_graph stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Chart Offline — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about generate_network_graph

What does the generate_network_graph tool do? +

Generate a network graph chart to show relationships (edges) between entities (nodes), such as, relationships between people in social networks. It is categorised as a Write tool in the Chart Offline MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_network_graph? +

Register the Chart Offline MCP server in PolicyLayer and add a rule for generate_network_graph: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Chart Offline. Nothing to install.

What risk level is generate_network_graph? +

generate_network_graph is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit generate_network_graph? +

Yes. Add a rate_limit block to the generate_network_graph rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block generate_network_graph completely? +

Set action: deny in the PolicyLayer policy for generate_network_graph. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides generate_network_graph? +

generate_network_graph is provided by the Chart Offline MCP server (liukeyu800/mcp-server-chart-offline). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Chart Offline tool call.

Start from Chart Offline, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →