get_option_chain

A read tool on the Cowork Bench MCP server.

SERVERCowork Bench SOURCE0717376/cowork_bench

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/cowork-bench/get-option-chain.md

WHAT IT DOES

What get_option_chain does on Cowork Bench

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

RISK

Why get_option_chain is rated Low

The tool name suggests data retrieval ('get_') of financial information ('option_chain'). The absence of a description reduces confidence, but the read-only nature of retrieving pre-calculated option chain data (strikes, prices, Greeks) rather than executing trades or modifying positions places this in the Read category.

From the tool's definition Tool name 'get_option_chain' with no description provided. Based on naming convention, appears to retrieve option chain data (financial derivatives pricing/structure information) from a market data source without modifying or executing transactions.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_option_chain safely

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

get_option_chain Allowed

get_option_chain 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": {
    "get_option_chain": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Cowork Bench, apply this rule, and every get_option_chain call is checked against it from then on.

FAQ

Questions about get_option_chain

What does the get_option_chain tool do? +

get_option_chain is a read tool on the Cowork Bench MCP server. It is categorised as a Read tool in the Cowork Bench MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_option_chain? +

Register the Cowork Bench MCP server in PolicyLayer and add a rule for get_option_chain: 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 Cowork Bench. Nothing to install.

What risk level is get_option_chain? +

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

Can I rate-limit get_option_chain? +

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

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

get_option_chain is provided by the Cowork Bench MCP server (0717376/cowork_bench). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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