What This Category of Data Looks Like
Reference only; verify against the target FastGPT release and deployment documentation.
What Constraints These Characteristics Impose on the "Workflow Orchestration" Link
Policy data for building engineering general contracting is scattered across national and local multi-level authorities. Workflows must support multi-source knowledge base recall. User-input project location parameters must be bound via variables to accurately match policy documents for the corresponding region. Single policy documents are lengthy. Workflows must limit the number of recalled documents and context length per session to avoid exceeding large model processing limits. Policy updates have no fixed cycle. Workflows must be configured with a regular refresh mechanism to ensure retrieval results use the latest versions. Policy fields include subdivided items such as qualifications and duration. Form nodes and retrieval nodes must be associated via nodeId to achieve precise parameter transfer.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
| Single Recall Limit | Top 8 entries | Building policy documents are lengthy in single pieces; too many recalls will exceed context limits |
| Maximum Context Length | 8000–12000 token | Adapts to the long-text structure of policy documents to avoid truncating key clauses |
| Timeout Period | 60 seconds | Addresses cross-regional retrieval delays for multi-source policy data |
variables | Bind project location and contracting qualification fields | Accurately match policy documents for the corresponding region and qualification requirements |
nodeId | Associate form nodes and knowledge base retrieval nodes | Enable automatic triggering of policy retrieval via user-input parameters |
| Reranking Switch | Enabled | Sort retrieval results by policy hierarchy (higher-level law priority) |
Three Common Mistakes
- Phenomenon: Untriggered gpt-4o-mini error logs appear during workflow runtime. Cause: The trigger conditions for
variablesare not configured correctly, causing the workflow to mistakenly call the large model interface when no policy data is matched. - Phenomenon: Historical policy records in global variables cannot be updated. Cause: No historical record refresh step for
variablesis added to the workflow, resulting in cached old version policy data. - Phenomenon: Qualification certification files uploaded by users cannot be associated and retrieved by the workflow. Cause: No file upload field is configured in the form node, so file information cannot be passed to the knowledge base retrieval link via
nodeId.
How to Confirm Proper Configuration
- Manually enter the location and contracting scope of a building project, check if the workflow recalls the general contracting policy documents for the corresponding region
- View workflow runtime logs to confirm that project parameters in
variablesare correctly passed to the knowledge base retrieval node - Simulate a policy update scenario to check if the knowledge base updates data according to the set refresh cycle
- Trigger a scenario with no matching policies, confirm that the workflow only returns a prompt that no relevant policies exist, with no redundant large model call errors
The values provided here are common starting points and should be measured 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.