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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint false, so the safety profile is covered. The description adds one useful behavioral trait: it does not fetch the evidence sources. However, it does not disclose what the route operation returns, whether it performs network access, or how the resolved sources are represented.

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 concise sentence that front-loads the core action and the key exclusion ('without fetching them'). There is no filler or irrelevant detail.

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 should explain what the tool returns or how an agent should use the result, but it does not. It also fails to mention behavior for invalid topics, multiple topics, or the relationship between this tool and its siblings. An agent would likely need additional context to call 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 0%, so the description carries the full burden of explaining the topics parameter. It only restates 'financial research topics' without explaining what values are valid, how many can be supplied, what each topic means, or how multiple topics are processed.

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 ('resolve') and names the resource ('financial research topics to fixed public evidence sources'), and it clearly distinguishes this tool from financial_evidence_fetch with 'without fetching them.' However, 'fixed public evidence sources' is somewhat abstract, and what 'resolve' actually produces is not stated.

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 phrase 'without fetching them' implies that this tool is for obtaining source references rather than content, and suggests financial_evidence_fetch as the fetching counterpart. But the description does not explicitly name any alternative tool or state when to prefer this over financial_evidence_topics, leaving usage guidance mostly inferred.

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