What the Data for This Category Looks Like
Data for energy metals is sourced from official market APIs of domestic and international commodity exchanges, and real-time submissions from authoritative industry monitoring institutions. Updates include high-frequency pushes during daytime trading sessions and post-settlement data updates. Document structures primarily use standardized market snapshots and daily yield-related reports. Fields include product code, latest transaction price, daily price change metrics, position volume, and settlement price. Units include yuan/ton, lot, ten thousand tons, and others. Each record includes full daily market data dimensions and multi-period historical comparison dimensions.
Constraints for Tool Calling and Plugins
The high-frequency update nature of energy metals requires tool calling to adapt to short-cycle trigger logic, to avoid insufficient data timeliness caused by overly long call intervals. The multi-field and multi-unit structure requires plugins to include unified field mapping and unit conversion rules, to ensure readability and accuracy of output results. The multi-period comparison dimension design requires tool calling to support dynamic specification of comparison period parameters, rather than using a fixed single period configuration. Dependence on multiple data sources requires plugins to configure multi-source fallback mechanisms, to automatically switch to backup data sources when a single market API returns an error, and to ensure call stability.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
tool_call_interval | 30–60 seconds | Adapts to the high-frequency update rhythm of energy metals during daytime trading sessions, to avoid exceeding the current limiting threshold of market APIs due to frequent calls |
mcp_max_retries | 2 times | Addresses temporary errors in single MCP calls, to ensure stability of data acquisition |
tool_field_mapping | Map to Variety Code, Latest Transaction Price, Daily Change Indicator, Settlement Price | Matches the standard field structure of energy metal market documents, to ensure tool returned data aligns with business requirements |
tool_call_timeout | 10–15 seconds | Complies with the typical response time of market APIs, to avoid workflow blocking caused by excessive waiting time |
dynamic_period_switch | Enabled | Supports the business requirement of multi-period comparison for energy metals, allowing large models to dynamically specify comparison period parameters |
plugin_unit_conversion | Enabled | Adapts to the multi-unit field characteristic of energy metal market data, to automatically complete unified unit conversion |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require individual analysis, and it is recommended to test on your own samples before finalizing.
Three Common Mistakes
- Phenomenon: The large model does not trigger MCP tool calls, and only generates general market descriptions. Cause: No dedicated keyword rules for tool triggering are configured, or the query intent for the energy metal category is not bound to MCP calls.
- Phenomenon: When concurrent call volume reaches 2-3 times per second, MCP returns
noneor empty fields. Cause: No concurrency current limiting related parameters are configured, or the threshold is set too high and exceeds the current limiting upper limit of the market API, causing the API to refuse to return valid data. - Phenomenon: The fields returned by the tool have mixed units, such as yuan/kilogram and yuan/ton appearing together. Cause: Unit conversion configuration is not enabled, and multi-unit fields of energy metal market data are not processed uniformly.
How to Confirm Correct Configuration
- Initiate a single energy metal market query, and check whether the configured MCP plugin is triggered in the tool call log, and whether the returned fields match the preset mapping rules.
- Simulate a multi-concurrent call scenario, observe the workflow running status and MCP return results, and adjust current limiting related configurations until no abnormal returns occur.
- Submit query requests that include different comparison periods, and confirm that the large model can dynamically call market data of corresponding dimensions.
- View the plugin running log, confirm that the unit conversion logic is executed normally, and the units of the returned results are unified.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.