analyze_call_graph

THE RISK

Low Risk

Why analyze_call_graph needs a policy

This is a passive analysis tool that traces function relationships in existing code. It retrieves and displays structural information about JavaScript execution flow without executing code, modifying state, or causing side effects. Fits the Read category: retrieves data with no side effects.

From the tool's definition Tool analyzes call graphs for JavaScript functions to understand callers and callees. The description indicates data retrieval and analysis only: 'analyze' and 'understand' imply inspection without modification.

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

POLICY

How to control analyze_call_graph

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "analyze_call_graph": {}
  }
}

analyze_call_graph is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about analyze_call_graph

What does the analyze_call_graph tool do? +

Analyze the call graph for a specific JavaScript function to understand its callers and callees. It is categorised as a Read tool in the ReverseCraft DevTools MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on analyze_call_graph? +

Register the ReverseCraft DevTools MCP server in PolicyLayer and add a rule for analyze_call_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 ReverseCraft DevTools MCP. Nothing to install.

What risk level is analyze_call_graph? +

analyze_call_graph is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit analyze_call_graph? +

Yes. Add a rate_limit block to the analyze_call_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 analyze_call_graph completely? +

Set action: deny in the PolicyLayer policy for analyze_call_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 analyze_call_graph? +

analyze_call_graph is provided by the ReverseCraft DevTools MCP server (reverse-craft/rc-devtools-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ReverseCraft DevTools MCP tool call.

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

CHECK YOUR STACK →