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

With no annotations provided, the description carries the full burden of behavioral disclosure. It indicates this is a read operation and lists the kind of data included (filings, holdings changes), but omits details such as pagination, output structure, or any access constraints. This is a moderate but incomplete disclosure.

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 brief and front-loaded with purpose, but it repeats 'mutual funds and ETFs' and 'API' across two sentences. A more concise single sentence would be equally informative without redundancy.

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?

Although the tool has a simple one-parameter schema, the description does not clarify how it differs from near-identical siblings (getFundDisclosure, searchFundDisclosures) nor define the expected output format. With no output schema and no annotations, the description should provide more disambiguating and behavioral context.

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% for the single 'symbol' parameter, so the schema already documents its meaning. The description adds no substantive parameter-level detail beyond what the schema states ('Fund symbol'), so it does not improve parameter clarity.

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 the action ('Access') and the resource ('latest disclosures from mutual funds and ETFs'), giving a specific purpose. However, it does not differentiate this tool from closely named siblings like getFundDisclosure or searchFundDisclosures, so it misses the opportunity for sibling distinction.

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 provided on when to use this tool versus alternatives. The description only explains what the API does, not when it should be selected over getFundDisclosure or other disclosure-related tools.

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