Tool Calling and Plugins for Infrastructure Construction

What the Data for This Category Looks Like

Core data for infrastructure construction-related financial marketing originates from project BIM models, official bidding announcement platforms, construction ledger systems, and engineering financial settlement reports. This data supports customer acquisition and marketing content generation for financial institutions targeting infrastructure entities. Update frequencies fall into three categories: bidding announcements update in real time alongside project progress, construction logs sync daily, and BIM models and settlement reports update at project milestones. Document structures primarily use structured fields, including project number, section division, floor area (unit: ㎡), total contract amount (unit: ten thousand yuan), start and completion dates, participant qualification levels, material specifications and models, and more. Some supporting documents such as construction plans and drawing descriptions use long-text formats, with individual documents reaching tens of thousands of characters.

Constraints Imposed on Tool Calling and Plugins

Multi-source heterogeneous data for infrastructure construction financial marketing requires tool calling to connect multiple independent interfaces. Configuration must handle authentication rules and response formats for each distinct interface. Field units and formats are inconsistent: some bidding interfaces return amounts in yuan, while some financial systems use ten thousand yuan as the unit. The tool calling link must include additional configuration for format verification and conversion logic to ensure accurate numerical values in financial marketing content. Long-text supporting documents require tools to support segmented parsing and context aggregation, to avoid exceeding the large model’s context window and compromising marketing content completeness. Marketing content with high real-time requirements, such as winning bid announcement pushes, requires a short tool call cache period to ensure timely information delivery from financial institutions to infrastructure entities.

Configuration Settings

Configuration Item	Recommended Value	Rationale
`tool_call_max_count`	2–3 times	Infrastructure construction financial marketing requires calling three tool types: bidding, BIM, and financial. Excessive calls in a single round cause response timeouts.
`plugin_timeout`	15–20 seconds	Bidding interface responses are typically slow, and multiple pages of data must be pulled. A value that is too long blocks the overall process, while a value that is too short loses valid results.
`tool_result_parse_mode`	`structured_only`	Infrastructure construction data mostly consists of structured fields. Parsing only structured results filters redundant text and improves calling accuracy.
`plugin_auth_type`	`api_key_based`	Most engineering open interfaces use API key authentication, aligning with the security specifications of existing project connections.
`max_tool_context_length`	8000–12000 characters	Long documents such as construction plans and drawing descriptions require adaptation to the context window requirements of long-text parsing.

The parameter values provided on this page are common recommended starting points for configuration setup. Actual values are affected by material format, data volume, and business rules. Specific scenarios require targeted analysis. It is recommended to test with relevant samples before finalizing configurations.

Three Common Misconfigurations

Phenomenon: Tool calls return empty engineering fields or incorrect formats, such as the contract_amount field displayed as a string instead of a numeric type. Cause: No result parsing rules are configured for dedicated infrastructure engineering fields. The large model cannot identify and extract structured data, resulting in failure to generate accurate project information in marketing content.
Phenomenon: When configuring multi-tool calls, only the first request is executed, and pulling of bidding and BIM data cannot be triggered simultaneously. Cause: The tool_call_max_count parameter is not set correctly, or multi-tool parallel triggering configuration is not enabled. This prevents simultaneous initiation of multiple engineering interface requests.
Phenomenon: Tool calls return a request timeout error or status code 504, or the obtained current time does not match the engineering project location. Cause: The plugin_timeout parameter is set too short, failing to adapt to the long response delay of bidding and BIM platforms; or the time zone parameter is not calibrated, and the default time zone does not match the engineering project location, resulting in incorrect information returned by the time plugin.

How to Verify Successful Configuration

Initiate a single tool call request specifying the construction_area and contract_amount fields for a given infrastructure project. Confirm that the returned result format and unit align with expected standards.
Configure multi-tool parallel triggering, review platform logs to confirm that two or more engineering interface calls are initiated simultaneously, with no omissions or blockages.
Adjust the plugin_timeout parameter to 5 seconds to simulate a timeout scenario. Confirm that the platform returns a request timeout error prompt matching expected settings.
Upload engineering drawings to the multimodal plugin. Confirm that images can be parsed normally and annotation information extracted, with no format or resolution errors.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.