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SoapyRED

FreightUtils MCP Server

by SoapyRED

adr_exemption_calculator

Calculate ADR 1.1.3.6 exemption thresholds for mixed hazardous loads to determine if full compliance is required.

Instructions

Calculate ADR 1.1.3.6 exemption thresholds for mixed hazardous loads.

ADR 1.1.3.6 allows reduced requirements when the total "points" of a mixed load are 1,000 or below. Each substance is assigned to a transport category (0-4) with a multiplier. Points = quantity x multiplier.

Use this tool when you need to:

  • Check if a load of dangerous goods qualifies for the small load exemption

  • Calculate total ADR points for a mixed load

  • Determine if full ADR compliance is required

For single substances, provide un_number + quantity. For mixed loads, use the items array.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
un_numberNoUN number for single-substance check
quantityNoQuantity in kg or litres for single-substance check
itemsNoArray of items for mixed-load calculation (use instead of single un_number/quantity)
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Explains calculation logic (points = quantity x multiplier, 1,000 threshold) and business meaning (reduced requirements) without contradicting annotations (none provided).

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Well-structured with clear hierarchy: purpose, rule explanation, usage list, parameter guidance; no redundant text.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Missing output description (what values are returned: points total, boolean exemption status?) given no output schema exists to document return structure.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Adds crucial guidance on mutually exclusive input patterns (single substance vs items array) beyond 100% schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Specific action (Calculate) + resource (ADR 1.1.3.6 exemption thresholds) with clear domain context that distinguishes it from sibling adr_lookup.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly lists three scenarios for use (check qualification, calculate points, determine compliance) and clarifies single vs mixed load input patterns.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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