What the data for this category looks like
Commodity trade policy and regulatory basis data mainly comes from public normative documents issued by the National Development and Reform Commission, Ministry of Commerce, General Administration of Customs, provincial commercial authorities, and commodity trade industry associations. Updates occur irregularly, synchronized when new policies are released or existing policies are revised. Document structures include fields such as policy document number, issuing authority, effective date, applicable trade categories, regulatory requirements, and tax rate standards. Units include percentage tax rates, weight unit ton, volume unit cubic meter, and others. Document formats from different departments have minor differences.
What constraints these characteristics impose on tool calling and plugins
Commodity trade policy data comes from scattered sources and has inconsistent formats. Tool calling plugins must support structured parsing of multi-source data. Otherwise, core fields cannot be extracted accurately. Policy updates do not follow a fixed cycle. Plugins must be configured with a scheduled pull mechanism to ensure data timeliness. Static indexing will cause search results to lag. Policies are strongly bound to specific commodity trade categories. Tool calls must pass precise category parameters. Otherwise, irrelevant policy content will be returned. Some policies contain special characters and professional regulatory codes. The parameter verification link of tool calls must adapt to these format requirements.
How to set configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
toolChoice | auto | Automatically select the tool adapted for policy retrieval, no need to manually specify the call target |
| Tool call timeout | 300 seconds | Commodity trade policy documents have relatively long lengths, and sufficient processing time is required for retrieval and parsing |
functionCall | enabled | Enable function calls to connect to the policy database plugin and obtain structured policy data |
| Number of tool call results returned | Top 6–10 | There are a large number of policy entries, returning an appropriate number of results avoids context overload |
| Variable parameter verification | Calibrated based on actual testing | Must match policy fields and passed variables to prevent retrieval failures caused by parameter misalignment |
Three common mistakes
- A
400 Messages with roleerror is returned when calling a tool. The cause is that extra spaces exist in the policy data role field, which does not meet the format verification rules. - The database connection tool call produces no output. The cause is that no specific commodity trade category is configured as a filter parameter, leading to an overly broad search scope that cannot return valid results.
- An error occurs when passing variables to SQL. The cause is that fields containing special characters such as policy document numbers are not escaped, leading to SQL syntax parsing failure.
How to confirm the configuration is complete
- Enter the plugin management page of FastGPT v4.17.0, confirm that the commodity trade policy database plugin is enabled and the correct data source address is configured.
- Initiate a test query, enter a policy query for a specific commodity trade category, and check if the tool call log shows correct parameter passing and parsing results.
- View the tool call return result list, confirm that the number of returned entries matches the preset range of 6–10.
- Manually pass a policy document number variable containing special characters, check if execution proceeds normally and corresponding policy content is returned.
The values provided 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.