get_eps_trend

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

Annotations already declare the safety profile: readOnlyHint=true, idempotentHint=true, openWorldHint=true, and destructiveHint=false. The description adds that the tool returns trend data over different time periods, but does not provide additional behavioral details such as rate limits, auth requirements, or data latency.

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 short and front-loaded with the main purpose, followed by conventional Args and Returns sections. The Returns section is somewhat redundant because an output schema exists, but the overall structure is efficient and readable.

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 simple one-parameter read-only tool with rich annotations and an output schema, the description covers the basic purpose and parameter. It is incomplete in one important respect: it does not help the agent distinguish this tool from the overlapping sibling get_eps_revisions.

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% for the single required ticker parameter. The description only says 'ticker: Stock ticker symbol,' which largely restates the parameter name and title without specifying format, market conventions, or examples, so it fails to compensate for the missing schema description.

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?

States a specific verb and resource: get EPS trend data showing how estimates have changed. However, it does not distinguish this tool from the nearby sibling get_eps_revisions, which likely covers similar estimate-change data.

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 gives no when-to-use guidance, no alternatives, and no conditions or prerequisites. It simply states what data is returned, leaving the agent to infer when this tool is preferable to siblings like get_eps_revisions or get_analyst_estimates.

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