What the data for this category looks like
Building construction project yield rate and market data comes primarily from regional construction cost databases of housing and urban-rural development authorities, daily quotation systems for building material supply chains, and project filing investment archives. Core market data is updated daily. Regional guidance prices are synchronized to the platform weekly. Each daily report document includes fields such as project region, business type, unit cost benchmark value, proportion of core building material costs, calculated unit investment return value, corresponding construction period node requirements, and more. The unit of unit cost benchmark value is yuan per square meter. The unit of calculated unit investment return value is yuan per ten thousand yuan invested. No percentage-based measurement fields are included.
What constraints these characteristics impose on multi-turn dialogue and prompt engineering
Daily updated market data requires multi-turn dialogue to real-time link the latest building material costs and cost benchmarks, avoiding calls to expired historical data. The weekly update feature of regional guidance prices requires prompts to clearly distinguish local and cross-regional cost parameters, preventing mixing of cross-regional data. The multi-field document structure requires prompts to specify field extraction priorities, prioritizing data for the region and business type specified in the current query. The non-percentage measurement method requires prompts to clearly unify unit conversion rules, avoiding numerical confusion. The requirement for batch upload of long documents requires the context window configuration to adapt to the document length of a single daily report, preventing context overflow.
How to Set Configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
maxContext | First 8000 characters | Adapts to the context window limit of FastGPT 4.9.7 and above, adapts to the average document length of a single building construction project daily report, and avoids context window overflow |
recallTopK | First 6 entries | Matches the number of core fields in a single daily report, filters irrelevant historical dialogue data |
similarityThreshold | 0.72–0.78 | Adapts to the field similarity distribution of building construction project data, improves the relevance of recalled content |
contextWindowSliceSize | 1200 characters | Matches the paragraph length of a single daily report, avoids damaging data integrity during slicing |
logRetentionDays | 30 days | Complies with the conventional cycle of industry data archiving, controls storage resource usage |
toolCallHideContent | Enabled | Hides intermediate steps of tool calls, only displays the sorted final broadcast results to users |
The parameter values provided on this page are all conventional recommendations used to determine the starting point for configuration. Actual values are affected by material forms, data volume, and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing.
Three Common Misconfigurations
- Phenomenon: After uploading multiple building construction project daily reports in a dialogue, the model returns content unrelated to the current query. Cause: The
contextWindowSliceSizeparameter is not configured, long documents are not sliced correctly, and context window overflow leads to data confusion. - Phenomenon: Complete API request and response logs, as well as the sorted yield rate results, are displayed during the tool call process. Cause: The
toolCallHideContentconfiguration is not enabled, and intermediate steps of tool calls are synchronously exposed to dialogue users. - Phenomenon: After the third round of dialogue, the model fails to associate the previously mentioned project region and business type parameters, returning off-topic results. Cause: A reasonable value for the
maxContextparameter is not set, or the context recall switch is not enabled, and historical dialogue is not properly retained.
How to Confirm the Configuration is Correct
- Initiate a dialogue that includes multiple building construction project daily reports, check whether the content returned by the model only includes field data related to the current query, with no irrelevant historical dialogue residues.
- Test the tool call process, confirm that the final broadcast result does not include intermediate steps of tool calls, and only displays sorted yield rate and market information.
- Initiate consecutive multi-round queries associated with region and business type parameters, check whether the model can correctly associate parameters from previous questions and return project data for the corresponding region.
- View the system log archive page, confirm that the log retention duration matches the configured parameters, and that expired log cleanup operations can be performed as needed.
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.