save_stock_report · Stocks MCP: Risk & Policy

WHAT IT DOES

What save_stock_report does on StocksMCP

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

WHY IT NEEDS A POLICY

Why save_stock_report needs a policy

This tool creates or modifies data by saving files to local storage, fitting the Write category. It is reversible—saved files can be deleted or overwritten. It is not Destructive because the operation is not irreversible.

From the tool's definition The tool 'save_stock_report' creates and writes data ('Save a generated stock analysis report to local disk storage as a JSON file'), which is a reversible modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

save_stock_report Rate-limited

save_stock_report 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_stock_report": {
      "limits": [
        {
          "counter": "save_stock_report_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 StocksMCP, so you can run agents against it safely.

FAQ

Questions about save_stock_report

What does the save_stock_report tool do? +

Save a generated stock analysis report to local disk storage as a JSON file. It is categorised as a Write tool in the StocksMCP 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_stock_report? +

Register the Stocks MCP server in PolicyLayer and add a rule for save_stock_report: 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 StocksMCP. Nothing to install.

What risk level is save_stock_report? +

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

Can I rate-limit save_stock_report? +

Yes. Add a rate_limit block to the save_stock_report 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_stock_report completely? +

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

save_stock_report is provided by the Stocks MCP server (pawanthanay/stocksmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.