What the data for this category looks like
Data sources for residential development intelligent due diligence reports include natural resources department land transfer notices, housing and urban-rural development department construction permit filings, real estate enterprise internal cost ledgers, and surrounding commercial housing online signing data. Update rhythms vary by category: land data is updated monthly, construction milestone data is synced in real time as projects progress, and filing data is updated daily. Documents are mostly multi-chapter PDFs or structured tables, with fields including land transfer conditions, planning indicator parameters, capital budget details, and surrounding supporting facility lists. Field units cover ratios, percentages, currency units, date formats and other types.
Constraints Imposed on Tool Calling and Plugins by These Characteristics
Residential development due diligence data sources are scattered, and update rhythms differ significantly. Tool calling must adapt to multiple types of official public APIs and internal ledger data sources, and configure update frequency trigger rules for corresponding data sources. Project documents are mostly multi-chapter materials with mixed formats, including structured tables and long text paragraphs. Tool calling must support segmented parsing and structured field extraction. Field units are diverse, so the tool calling link must include built-in unit verification and automatic conversion logic to avoid unit mismatch issues during parameter transfer. Individual due diligence reports have large content volumes, so tool calling must reserve sufficient context processing space and timeout thresholds.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Residential development due diligence reports are mostly multi-chapter materials with mixed formats, and conventional parsing takes a long time |
UPLOAD_FILE_MAX_SIZE | 2000 MB | A single complete due diligence report includes multiple types of attachments such as project drawings and capital ledgers, and the total size is usually large |
maxContext | 8000–12000 characters | Core structured fields such as complete planning indicators and capital budgets must be retained |
similarity_threshold | 0.75–0.85 | Accurate matching of land parameters and surrounding competitor data is required to avoid interference from low-correlation content |
tool_call_batch_size | First 3 entries | Due diligence reports must prioritize calling core data source APIs to avoid redundant requests consuming resources |
MCP_SERVER_ENABLED | Enabled | Custom tool calling capabilities must be extended to adapt to multiple types of data source APIs |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material format, data volume and business rules. Specific issues require case-by-case analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Configuration Mistakes
- Phenomenon: When configuring a workflow as a tool call, files uploaded via a simple task cannot generate link parameters that can be passed to the workflow, and a
400 Bad Requesterror is returned when calling. Cause: The dedicated configuration item for file link generation is not enabled, or the workflow is not configured with an input field to receive file links. - Phenomenon: A
timeouterror occurs when calling an external interface via tool calling, with a504 Gateway Timeoutstatus code returned. Cause: ThePARSE_FILE_TIMEOUT_SECONDSconfiguration was not adjusted based on the parsing duration of residential development due diligence reports, and the default threshold is insufficient for long document parsing. - Phenomenon: When multiple due diligence-related queries are initiated simultaneously, knowledge base recall results are duplicated and have no priority distinction. Cause: The accurate matching rule for
similarity_thresholdis not configured, or deduplication logic for recall results is not set.
How to Verify Successful Configuration
- Upload a standard residential development due diligence report, and check whether the parsed segment length matches the configured segment parameters.
- Initiate a tool calling request, and check whether the returned parameters include a file link to confirm that the uploaded file size does not exceed the configured limit.
- Trigger multiple parallel due diligence queries, and check whether knowledge base recall results are filtered according to the configured similarity rules.
- View tool calling logs to confirm that there are no errors in custom tool interface calls and that configuration items have taken effect.
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.