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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds context about the source (S&P Capital IQ, Damodaran), the metrics provided, and the target users (CFOs, treasurers), which goes beyond the annotations. No contradictions found.

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 tight and front-loaded with usage guidance. It uses three sentences to convey purpose, content, source, and audience—no fluff or repetition.

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?

With no output schema, the description provides enough content detail (metrics) to set expectations. It covers use cases, source, and audience, which is complete for a read-only benchmark tool. It lacks caveats about data freshness or limitations, but that is not critical given the annotations.

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 coverage is 0%, so the description must compensate. It mentions 'by credit rating tier and industry', mapping to the two parameters, but does not explain enum values or how to use them. The schema's enums are self-explanatory to a degree, but the description offers minimal added meaning beyond indicating the dimensions.

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 clearly states its purpose: assessing company debt capacity, benchmarking leverage against sector peers, and preparing refinancing or credit rating discussions. It names specific metrics (Net Debt/EBITDA, interest coverage, debt maturity profiles) and differentiates from siblings by focusing exclusively on corporate debt benchmarks.

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?

Provides clear context: 'Use when assessing a company debt capacity, benchmarking leverage against sector peers, or preparing a refinancing or credit rating discussion.' It does not explicitly name sibling alternatives or state when not to use, but the use cases are specific enough to guide selection.

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