Cross-Border Transaction Tax Analyzer

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

No annotations are provided, so the description carries the full burden. It states the tool 'Analyze' and 'Covers' certain topics, but does not disclose what the output looks like, whether it is a calculation or guidance, any assumptions, or limitations. This is a significant gap for a tax analysis tool, leaving the agent unsure of what to expect.

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

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

The description is a single, well-structured sentence that front-loads the core purpose and then lists the coverage areas. Every word earns its place, with no repetition of schema details or fluff.

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

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

Despite having 5 parameters and no output schema, the description does not explain what the tool returns (e.g., a report, a numeric result, specific rates) or how to interpret the analysis. It also fails to mention any prerequisites or limitations. For a complex tax analysis tool, this leaves significant gaps in the agent's ability to use it correctly.

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

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

Schema description coverage is 100%, so the schema already documents all parameters. The description adds no additional parameter-level meaning beyond listing the covered topics, which indirectly maps to some parameters (e.g., transaction_type, country_code, is_related_party). Baseline 3 is appropriate as the schema does the heavy lifting.

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

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

The description uses a specific verb ('Analyze') and names the resource ('tax implications of a cross-border transaction'), with a clear scope between a Canadian company and a foreign entity. It lists the covered areas (withholding tax, transfer pricing, thin cap, treaty benefits), which distinguishes it from more targeted sibling tools like treaty_rate_lookup or foreign_tax_credit.

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

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

The description provides clear context: use when you need to analyze tax implications of a cross-border transaction between a Canadian and foreign party. It does not explicitly name alternative tools or state when not to use it, but the scope is clearly implied by the listed coverage areas and the tool's title.

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