generate_unhcr_graph · UNHCR Chart Generation MCP Server MCP

WHAT IT DOES

What generate_unhcr_graph does on UNHCR Chart Generation MCP Server

AI agents use generate_unhcr_graph to create or update resources in UNHCR Chart Generation MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your UNHCR Chart Generation MCP Server environment.

WHY IT NEEDS A POLICY

Why generate_unhcr_graph needs a policy

The tool likely generates a chart/image (similar to sibling tools on the same server). Generation of a visualization is a Write-like action (creating a new artifact), but it has minimal blast radius as it only produces an image output. Confidence is moderate-low because the tool description is empty and classification is inferred from server context and sibling tools.

From the tool's definition Tool name 'generate_unhcr_graph' and server description: 'Enables AI agents to generate UNHCR-styled data visualizations including bar, line, pie, and scatter charts with refugee and population data, returning charts as base64-encoded images.'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_unhcr_graph Rate-limited

generate_unhcr_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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches UNHCR Chart Generation MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_unhcr_graph

What does the generate_unhcr_graph tool do? +

generate_unhcr_graph. It is categorised as a Write tool in the UNHCR Chart Generation MCP Server 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_unhcr_graph? +

Register the UNHCR Chart Generation MCP Server MCP server in PolicyLayer and add a rule for generate_unhcr_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 UNHCR Chart Generation MCP Server. Nothing to install.

What risk level is generate_unhcr_graph? +

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

Can I rate-limit generate_unhcr_graph? +

Yes. Add a rate_limit block to the generate_unhcr_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_unhcr_graph completely? +

Set action: deny in the PolicyLayer policy for generate_unhcr_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_unhcr_graph? +

generate_unhcr_graph is provided by the UNHCR Chart Generation MCP Server MCP server (rvibek/mcp-unhcrpyplot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.