What this category of data looks like
Data is primarily sourced from the coal transportation and sales scheduling system, weighing management system, tax declaration portal, and customer settlement ledger. The update cadence is daily batch updates. Each batch of declaration materials includes 10 to 50 electronic or paper files. Document fields include coal type code, waybill number, weighing weight (unit: ton), settlement unit price (unit: yuan/ton), approval node status, and declaration batch number. Some files include weighing photos and scanned transport contracts. The maximum size per single document is 200 MB.
What constraints these characteristics impose on the tool calling and plugins workflow
Coal transportation and sales declaration data is scattered across multiple independent systems. Tool calling requires configuring multi-source data aggregation plugins to synchronously call interfaces from the scheduling, weighing, and tax systems. Each single file can be up to 200 MB, so the tool calling file processing module must support chunked upload and parsing for large documents. The daily batch update feature requires tool triggering frequency to match the transportation and sales operation cycle, to avoid repeated calls or missing that day’s declaration batches. Fields include exclusive units such as ton and yuan/ton. Tool parameter verification must enforce matching the corresponding unit format to prevent call failures caused by entry errors.
Configuration Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Range | Rationale |
|---|---|---|
| Single tool call timeout | 1200–1800 seconds | Covers the typical time required for multi-source data aggregation and file OCR parsing for coal transportation and sales |
toolChoice | auto | Automatically matches tools needed for declaration verification and data checking, adapts to multi-stage review requirements |
| Tool call retry count | 2–3 times | Addresses occasional fluctuations in transportation and sales system interfaces, reduces call failures caused by temporary network issues |
| Large document chunking threshold | 80–120 MB | Adapts to the 200 MB maximum per file, splits documents for batch processing to avoid memory overflow |
| Scheduled trigger frequency | 1 time per day | Matches the daily batch update cadence of transportation and sales data, ensures calls use the latest same-day data |
Three Common Errors
- Phenomenon: Tool calls return a
504 Gateway Timeouterror, or workflow execution status shows timeout without completion. Cause: The single tool call timeout configuration was not adjusted, and the default value was used, which cannot cover the time required for batch file processing in coal transportation and sales. - Phenomenon: Tool calls return incorrect field formats, such as weight fields only showing numerical values without attached units. Cause: Parameter verification rules matching the exclusive units of coal transportation and sales were not configured, leading to data format mismatches with verification logic.
- Phenomenon: Knowledge base calls return empty results, and cannot match coal type information in declaration materials. Cause: A general authentication KEY was used, and the permission scope of the coal transportation and sales exclusive knowledge base was not bound, leading to inability to access corresponding business documents.
How to Verify Proper Configuration
- Trigger a single tool call manually, check if the returned results include exclusive business fields for coal transportation and sales, and verify that field units meet business requirements.
- View tool call logs, confirm that the multi-source data aggregation link successfully called interfaces from each system, with no failed requests or abnormal error messages.
- Configure a scheduled trigger task, wait for one execution cycle, and check if the generated review results include the latest same-day declaration batch data.
- Upload a test file of maximum size, confirm that the system can automatically process chunking and complete parsing, with no truncation or memory overflow prompts.
The values listed above are common starting points, and should be evaluated against the reader’s own specific samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.