strategy_validate
Run anchored fixed-candidate OOS validation with horizon-safe outcomes.
This record as markdown: /tools/emerzon-mt-data-mcp/strategy-validate.md
What strategy_validate does on MetaTrader5 MCP Server
AI agents invoke strategy_validate to trigger actions in MetaTrader5 MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why strategy_validate is rated High
The tool executes a strategy validation process (out-of-sample testing) which involves running a computational pipeline against market data. While it appears to be analytical/read-only in nature (no direct trading), it operates on a financial trading server with trading functionality.
From the tool's definition 'Run anchored fixed-candidate OOS validation with horizon-safe outcomes' — 'Run' indicates execution of a computational process (out-of-sample backtesting/validation pipeline)
Attacks that exploit this kind of access
The rule that runs strategy_validate safely
PolicyLayer is an MCP gateway: it sits between your AI agents and MetaTrader5 MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For strategy_validate, this is the rule to start with:
strategy_validate stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect MetaTrader5 MCP Server, apply this rule, and every strategy_validate call is checked against it from then on.
Questions about strategy_validate
Run anchored fixed-candidate OOS validation with horizon-safe outcomes. It is categorised as a Execute tool in the MetaTrader5 MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the MetaTrader5 MCP Server MCP server in PolicyLayer and add a rule for strategy_validate: 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 MetaTrader5 MCP Server. Nothing to install.
strategy_validate is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the strategy_validate 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 strategy_validate. 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.
strategy_validate is provided by the MetaTrader5 MCP Server MCP server (emerzon/mt-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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