render_graph

Render a DOT graph to an image

SERVERContextForge MCP Gateway SOURCEjrmatherly/mcp-context-forge

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jrmatherly-mcp-context-forge/render-graph.md

WHAT IT DOES

What render_graph does on ContextForge MCP Gateway

AI agents invoke render_graph to trigger actions in ContextForge MCP Gateway. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why render_graph is rated High

Rendering a DOT graph involves executing an external process or library (e.g., Graphviz) to transform input into an image. This is an execution action with side effects (file/image creation), not a simple read. Misuse could involve crafting malicious DOT content that exploits parser vulnerabilities, giving it medium severity.

From the tool's definition 'Render a DOT graph to an image' — the tool executes a rendering process (typically invoking Graphviz or similar engine) against a DOT-format input to produce output

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs render_graph safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ContextForge MCP Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For render_graph, this is the rule to start with:

render_graph Rate-limited

render_graph stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "render_graph": {
      "limits": [
        {
          "counter": "render_graph_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ContextForge MCP Gateway, apply this rule, and every render_graph call is checked against it from then on.

FAQ

Questions about render_graph

What does the render_graph tool do? +

Render a DOT graph to an image. It is categorised as a Execute tool in the ContextForge MCP Gateway MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on render_graph? +

Register the ContextForge MCP Gateway MCP server in PolicyLayer and add a rule for render_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 ContextForge MCP Gateway. Nothing to install.

What risk level is render_graph? +

render_graph is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit render_graph? +

Yes. Add a rate_limit block to the render_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 render_graph completely? +

Set action: deny in the PolicyLayer policy for render_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 render_graph? +

render_graph is provided by the ContextForge MCP Gateway MCP server (jrmatherly/mcp-context-forge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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