stock_events

Gets corporate events for a stock (for owned positions).

SERVEROpen Stocks MCP SOURCEopen-agent-tools/open-stocks-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/open-agent-tools-open-stocks-mcp/stock-events.md

WHAT IT DOES

What stock_events does on Open Stocks MCP

AI agents call stock_events to retrieve information from Open Stocks MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why stock_events is rated Low

This tool retrieves informational data about corporate events (e.g., earnings dates, splits, dividends) for stocks in the user's portfolio. It performs no write operations, does not execute trades or financial transactions, and does not delete or modify data. The read-only nature and informational purpose place it squarely in the Read category.

From the tool's definition Tool description states 'Gets corporate events for a stock (for owned positions)' - the verb 'Gets' and the action of retrieving corporate event data indicates a read-only query operation with no data modification, deletion, or financial transaction…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs stock_events safely

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

stock_events Allowed

stock_events is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about stock_events

What does the stock_events tool do? +

Gets corporate events for a stock (for owned positions). It is categorised as a Read tool in the Open Stocks MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on stock_events? +

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

What risk level is stock_events? +

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

Can I rate-limit stock_events? +

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

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

stock_events is provided by the Open Stocks MCP server (open-agent-tools/open-stocks-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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