save_code · Financial Analyst MCP Server MCP: Risk & Policy

WHAT IT DOES

What save_code does on Financial Analyst MCP Server

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

WHY IT NEEDS A POLICY

Why save_code needs a policy

The 'save_code' tool creates or overwrites files, making it a Write operation. It's not Destructive because saving code is reversible (files can be edited/deleted later). Severity is medium because uncontrolled file writes could fill disk space, corrupt legitimate code files, or create persistence vectors—but the blast radius is contained to the local filesystem.

From the tool's definition Tool name 'save_code' indicates it creates or persists code artifacts. The description is empty, but the function name strongly suggests file creation/modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

save_code Rate-limited

save_code 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": {
    "save_code": {
      "limits": [
        {
          "counter": "save_code_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 Financial Analyst MCP Server, so you can run agents against it safely.

FAQ

Questions about save_code

What does the save_code tool do? +

save_code. It is categorised as a Write tool in the Financial Analyst 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 save_code? +

Register the Financial Analyst MCP Server MCP server in PolicyLayer and add a rule for save_code: 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 Financial Analyst MCP Server. Nothing to install.

What risk level is save_code? +

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

Can I rate-limit save_code? +

Yes. Add a rate_limit block to the save_code 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 save_code completely? +

Set action: deny in the PolicyLayer policy for save_code. 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 save_code? +

save_code is provided by the Financial Analyst MCP Server MCP server (prakharsinghdev/mcp-powered-financial-analyst). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.