Analyze diagonal spread (different expiries and strikes). Includes Poor Man's Covered Call/Put analysis. Args: symbol: Ticker symbol option_type: 'call' or 'put' long_expiry: Long leg expiration (YYYY-MM-DD) long_strike: Long leg strike short_expiry: Short leg expiration (YYYY-MM-DD) short_strike...
AI agents call spread_diagonal to retrieve information from Trading Skills without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays analytical information about hypothetical or existing diagonal spread options strategies. It accepts market data inputs (ticker, option parameters) and returns analysis—a read-only operation with no side effects on accounts or positions. While it relates to trading, the tool itself does not execute trades, modify portfolios, or move funds.
From the tool's definition Tool 'analyzes' diagonal spreads and provides 'analysis' of option positions. The arguments are all input parameters for querying/analyzing data (symbol, expiries, strikes). No modification of accounts, no trade execution, no money movement.
Documented attack patterns abuse exactly the kind of access spread_diagonal gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trading Skills, and nothing reaches the server without passing your rules. This is the rule we recommend for spread_diagonal:
{
"version": "1",
"default": "deny",
"tools": {
"spread_diagonal": {}
}
}spread_diagonal is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Analyze diagonal spread (different expiries and strikes). Includes Poor Man's Covered Call/Put analysis. Args: symbol: Ticker symbol option_type: 'call' or 'put' long_expiry: Long leg expiration (YYYY-MM-DD) long_strike: Long leg strike short_expiry: Short leg expiration (YYYY-MM-DD) short_strike: Short leg strike. It is categorised as a Read tool in the Trading Skills MCP Server, which means it retrieves data without modifying state.
Register the Trading Skills MCP server in PolicyLayer and add a rule for spread_diagonal: 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 Trading Skills. Nothing to install.
spread_diagonal is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the spread_diagonal 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.
Set action: deny in the PolicyLayer policy for spread_diagonal. 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.
spread_diagonal is provided by the Trading Skills MCP server (staskh/trading_skills). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 35 Trading Skills tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
35 Trading Skills tools catalogued and risk-classified — across an index of 42,500+ MCP servers.