# symbols_describe A read tool on the MetaTrader5 MCP Server MCP server. Agent View of the PolicyLayer registry record for `symbols_describe`. HTML page: https://policylayer.com/tools/emerzon-mt-data-mcp/symbols-describe ## Facts - Tool: `symbols_describe` - Server: MetaTrader5 MCP Server (`emerzon/mt-data-mcp`) — https://policylayer.com/tools/emerzon-mt-data-mcp.md - Homepage: https://github.com/emerzon/mt-data-mcp - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "symbols_describe", "arguments": {} } } ``` ## Why symbols_describe is rated Low Based on the naming convention and the server's stated functionality, this tool retrieves descriptive information about trading symbols (metadata, properties, specifications). It does not modify data, execute trades, delete records, or trigger financial transactions. Sibling tools like 'data_fetch_candles' and 'data_fetch_ticks' establish the pattern of read-only data retrieval on this server. From the tool's own definition: "Tool name 'symbols_describe' suggests retrieval of symbol information or metadata. The server description explicitly mentions 'symbol information' as part of its read-only data capabilities. The empty tool description reduces confidence slightly." ## Use case AI agents call symbols_describe to retrieve information from MetaTrader5 MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches MetaTrader5 MCP Server: ```json { "version": "1", "default": "deny", "tools": { "symbols_describe": {} } } ``` ## Other tools on MetaTrader5 MCP Server (81) - `forecast_models_cleanup` — Destructive — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-models-cleanup.md - `forecast_models_delete` — Destructive — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-models-delete.md - `forecast_task_cancel` — Destructive — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-task-cancel.md - `forecast_task_cancel_all` — Destructive — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-task-cancel-all.md - `forecast_backtest_run` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-backtest-run.md - `forecast_generate` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-generate.md - `forecast_task_wait` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-task-wait.md - `forecast_train` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-train.md - `forecast_tune_genetic` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-tune-genetic.md - `forecast_tune_optuna` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-tune-optuna.md - `options_heston_calibrate` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/options-heston-calibrate.md - `strategy_backtest` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/strategy-backtest.md - `strategy_validate` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/strategy-validate.md - `wait_event` — Execute — https://policylayer.com/tools/emerzon-mt-data-mcp/wait-event.md - `forecast_barrier_optimize` — Financial — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-barrier-optimize.md - `options_barrier_price` — Financial — https://policylayer.com/tools/emerzon-mt-data-mcp/options-barrier-price.md - `trade_close` — Financial — https://policylayer.com/tools/emerzon-mt-data-mcp/trade-close.md - `trade_modify` — Financial — https://policylayer.com/tools/emerzon-mt-data-mcp/trade-modify.md - `trade_place` — Financial — https://policylayer.com/tools/emerzon-mt-data-mcp/trade-place.md - `trade_risk_analyze` — Financial — https://policylayer.com/tools/emerzon-mt-data-mcp/trade-risk-analyze.md - `trade_var_cvar_calculate` — Financial — https://policylayer.com/tools/emerzon-mt-data-mcp/trade-var-cvar-calculate.md - `causal_discover_signals` — Other — https://policylayer.com/tools/emerzon-mt-data-mcp/causal-discover-signals.md - `forecast_barrier_prob` — Other — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-barrier-prob.md - `forecast_optimize_hints` — Other — https://policylayer.com/tools/emerzon-mt-data-mcp/forecast-optimize-hints.md - `labels_triple_barrier` — Other — https://policylayer.com/tools/emerzon-mt-data-mcp/labels-triple-barrier.md - `report_generate` — Other — https://policylayer.com/tools/emerzon-mt-data-mcp/report-generate.md - `temporal_analyze` — Other — https://policylayer.com/tools/emerzon-mt-data-mcp/temporal-analyze.md - `trade_session_context` — Other — https://policylayer.com/tools/emerzon-mt-data-mcp/trade-session-context.md - `asset_performance` — Read — https://policylayer.com/tools/emerzon-mt-data-mcp/asset-performance.md - `cointegration_test` — Read — https://policylayer.com/tools/emerzon-mt-data-mcp/cointegration-test.md - …and 51 more: https://policylayer.com/tools/emerzon-mt-data-mcp.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=emerzon-mt-data-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/emerzon-mt-data-mcp