What this category of data looks like
Data for urban water utility policy and regulatory basis comes primarily from public official documents issued by the national Ministry of Housing and Urban-Rural Development, provincial and municipal water affairs bureaus, and internal operation systems of local urban investment water utilities. National policies are updated 1 to 2 times per year. Local policies are updated irregularly in line with local government release schedules. Single policy documents include fields such as document number, issuing authority, effective date, applicable region, core clauses, and penalty details. Some documents include official scanned attachments in PDF format. Text lengths range from hundreds to tens of thousands of characters.
What constraints these characteristics impose on the tool calling and plugins workflow
The regional limitation, long-text attribute, and irregular update rhythm of urban water utility policy data impose clear constraints on the tool calling process. First, policy data must be filtered by applicable region to prevent cross-regional policies from interfering with retrieval results. Second, long-text attachments must undergo format conversion and text extraction before being used for semantic retrieval. Third, the latest policy database must be synchronized regularly to ensure retrieval results cover newly released regulatory documents. Tool calling must support serial execution to ensure steps such as format conversion, regional filtering, and keyword matching are completed in sequence.
How to set configurations
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale for This Setting |
|---|---|---|
| Tool calling order | Execute in the order of "Attachment format conversion → Regional data filtering → Keyword matching → Result organization" | Matches the multi-stage processing logic of urban water utility policies, ensuring a complete retrieval workflow |
toolChoice | Set to auto | Adapts to multi-tool linkage scenarios, automatically identifying the tools to call for the current step |
functionCall | Enable batch calling mode | Supports calling multiple tools simultaneously to complete the full policy retrieval and organization workflow |
| Tool calling timeout period | 600 seconds | Covers the time required for long-text PDF attachment conversion and multi-clause content extraction |
| Number of returns per tool call | Top 10 entries | Matches the multi-clause characteristic of policy documents, avoiding result overload that affects readability |
| Plugin data update frequency | Synchronize once every 7 days | Matches the irregular update rhythm of local policies, ensuring the timeliness of retrieval data |
Three common errors
- Phenomenon: Only some of the multiple tools configured in the workflow are executed, and logs show no call records for unused tools. Cause: Serial execution configuration for tools is not enabled, leading to resource conflicts or execution order chaos when tools are called in parallel.
- Phenomenon: Empty results are returned after calling tools, and logs show no matching data in the retrieval scope. Cause: Filtering rules are not configured based on the applicable region field of policies, leading to retrieval scope exceeding the target city's water utility policy category.
- Phenomenon: Tool calls return parameter format errors that cannot be parsed into usable policy content. Cause: The return parameter template of the tool is not configured to match the field specifications of policy documents, leading to extracted content that does not meet the expected format.
How to confirm correct configuration
- Enter the workflow debugging interface, manually trigger tool calling, and check whether logs show call records for each tool in the preset order.
- Input a test question containing target city region keywords, and check whether the returned results include water utility policy documents corresponding to the target region.
- Check the tool calling timeout logs to confirm that no timeout interruptions occur, and that the execution time of each tool meets expectations.
- Check the plugin data synchronization records to confirm that there are successful synchronization logs within the last 7 days, ensuring that the policy database is up to date.
The values listed above 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.