What the Data for This Category Looks Like
Data sources for automotive parts intelligent due diligence include official supporting supplier databases from original equipment manufacturers (OEMs), type test reports issued by third-party quality inspection institutions, customs import and export declarations, and supplier annual audit documents. Update rhythms vary: OEM supporting directories are updated quarterly, batch quality inspection reports are updated in real time alongside production batches, and customs data is updated monthly. Document structures primarily include structured tables (such as BOM lists and qualification ledgers), PDF-format compliance reports, and structured Excel export files. Core fields include OE number, material grade, mechanical performance parameters (units: MPa, N·m), supplier unified social credit code, mass production capacity (units: units/month), and compliance certification numbers.
Constraints Imposed on Tool Calling and Plugins by These Characteristics
Diverse data sources and large format differences require tool calling to support multi-format parsing, including PDF, scanned documents, structured tables, and Excel files. The core OE number field acts as the retrieval anchor. Tool calling must use this field as the basis for precise matching to avoid irrelevant results from fuzzy retrieval. Significant differences in update frequencies across data sources require plugins to support incremental sync configuration, with on-demand data pulling triggers. Professional parameters come with dedicated units; plugins must retain unit parsing to avoid losing critical technical details. When processing multiple batches of data in bulk, tool calling must support paginated pulling to prevent overload from single requests.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Automotive parts compliance reports are mostly multi-page PDFs or scanned documents; 120 seconds covers parsing time for most single-batch reports |
RETRIEVE_TOP_K | Top 8 entries | Due diligence requires matching three core data types: OE number, material, and compliance certification. 8 entries cover core retrieval results |
UPLOAD_FILE_MAX_SIZE | 500 MB | Single files for bulk-imported BOM lists and supplier ledger Excel files typically do not exceed 500 MB |
TOOL_CALL_AUTO_TRIGGER | Enabled | Due diligence workflows require automatic tool calling to obtain real-time quality inspection data, with no manual intervention needed |
SIMILARITY_THRESHOLD | 0.75–0.85 | Threshold to distinguish precise OE number matching from fuzzy keyword matching, preventing irrelevant retrieval results from being included |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Each scenario requires individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Symptom: A
503 Service Unavailableerror is returned when attempting to call a locally deployed MCP tool. Cause: The local MCP tool is not added to the system whitelist, and local network access permissions are not configured. - Symptom: Calling an external knowledge base-linked interface returns no relevant content, with a
200status code but empty results. Cause: Cross-team knowledge bases do not have retrieval permissions enabled, and retrieval keywords are not bound to the automotive parts-specific OE number field, resulting in failure to hit target documents. - Symptom: Tool calling does not trigger automatically, requiring manual confirmation before execution, causing workflow execution to stall. Cause: The
TOOL_CALL_AUTO_TRIGGERconfiguration item is not enabled; the system defaults to manual confirmation mode.
How to Verify Successful Configuration
- Upload a single automotive parts compliance report PDF, and verify that the parsed results retain core fields such as OE number, material grade, and corresponding unit information.
- Enter a retrieval instruction containing the target OE number, and confirm that tool calling triggers automatically and returns matching supplier and quality inspection data.
- Call the locally deployed MCP tool, and check that the tool calling logs have no permission errors and return processing results in the expected format.
- Upload a bulk supplier ledger Excel file, and confirm that the upload operation does not trigger a size limit error.
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.