What This Category of Data Looks Like
Telecommunications engineering construction declaration materials and case review data mainly come from project initiation application materials, construction drawing design documents, on-site construction visas, acceptance filing forms, and operator approval cases. Data is updated on demand as the project progresses. The material package for a single project includes fields such as project number, construction location, budget amount, construction unit qualification certificate number, material test report number, and construction cycle. Budget amount is measured in ten thousand yuan, and construction cycle is measured in calendar days. A single piece of material includes multiple attachments, such as test report PDFs, qualification scan copies, and other content.
What Constraints These Characteristics Impose on the Tool Calling and Plugins Link
Data sources for telecommunications engineering construction declaration materials and case review are scattered, involving archives from multiple stages such as initiation, design, and acceptance. Tool calling must support connecting to multiple types of data source plugins to enable cross-system data pulling. Fields include information such as budget amount and construction cycle with specific units, so tool calling nodes must have built-in unit verification logic to avoid format errors. A single case includes multiple attachments, so tool calling must support batch parsing of multiple attachments and field concatenation. Data is updated on demand as the project progresses, so plugins must support incremental pulling of updated case materials to avoid reprocessing already reviewed content. Additionally, the toolChoice configuration must adapt to multi-tool scenarios to ensure the calling logic matches the business process of telecommunications engineering review.
Configuration Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
toolChoice | auto | Adapts to the multi-tool calling scenario of telecommunications engineering review, automatically matches data source pulling and field verification plugins |
functionCall | Enabled | Forces generation of structured tool calling requests, adapts to the fixed field verification requirements of case review |
| Tool call timeout | 120–180 seconds | Telecommunications engineering case materials include multiple attachments, so sufficient time must be reserved for data pulling and parsing |
| Field verification switch | Enabled | Telecommunications engineering review fields include specific units, so format compliance of fields such as budget and construction cycle must be verified |
| Document segmentation threshold | 800–1200 characters | Adapts to the length span of single case documents, avoids exceeding the context window limit when processing content in a single batch |
| Incremental sync switch | Enabled | Data is updated on demand as the project progresses, incremental sync reduces resource consumption from reprocessing already reviewed cases |
Three Common Mistakes
- Symptom: The tool calling node returns an Invalid JSON: Bad control character error. Cause: No escape processing for line breaks and special symbols in telecommunications engineering case materials, resulting in an invalid JSON format for the generated tool calling request.
- Symptom: The tool calling node cannot add connection lines, and no connection small circles appear on the interface. Cause: The tool calling node configuration has not been saved, or the workflow is in a read-only locked state.
- Symptom: Detailed logs of MCP services in the workflow cannot be viewed. Cause: The workflow log debugging switch is not enabled, or corresponding service calling records are not filtered in the system log module.
How to Confirm the Configuration Is Correct
- Submit a test telecommunications engineering declaration material, and check whether the tool calling node successfully pulls field data from the corresponding data source.
- Trigger the tool calling task, and check whether the returned JSON format complies with the preset field verification rules with no format errors.
- View the workflow log module, and confirm that MCP service calling records have been normally generated, including detailed parameters and returned content.
- Test the incremental sync function, upload an updated case material, and confirm that the tool calling node only processes new content.
The values provided here are common starting points and should be evaluated against the reader's own 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.