auto_loan_calc

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

With no annotations, the description must carry the full burden of behavioral disclosure. It only mentions the cost ($0.001 USDC via x402), which is useful, but doesn't disclose expected inputs, output format, side effects, or whether any authentication is needed.

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 very short and front-loaded with the tool name. The phrase 'Finance & Math tool' adds marginal value and could be considered slightly redundant, but overall it's concise without unnecessary elaboration.

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?

For a calculator tool with no output schema, no annotations, and a generic input schema, the description is incomplete. It fails to explain what the tool returns, what parameters to provide, or how it differs from the many other financial calculators in the sibling list.

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%, but the schema only defines a generic 'params' object wrapper with no specific parameters. The description implies the domain (auto loan) but doesn't enumerate required inputs like loan amount, interest rate, or term, leaving the agent to guess.

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 name and description clearly identify this as an auto loan calculator, which is a specific financial tool distinct from general loan or mortgage calculators. However, the description doesn't specify what it computes (monthly payment, total interest, etc.), so it's clear but not fully detailed.

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?

No guidance is given on when to use this tool versus the many sibling financial calculators. The description only states it's a finance & math tool, which implies usage but doesn't provide context or exclusions.

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