insider_trades

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

No annotations are provided, so the description must disclose behavioral traits. It fails to mention read-only nature, pagination, rate limits, data freshness, or behavior on invalid tickers. The description only states it 'returns officer and director trades' without further behavioral context.

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 concise, with two short paragraphs and two examples. It front-loads the purpose and filtering options. However, the second sentence about examples could be integrated more smoothly.

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?

Given 6 parameters and no output schema, the description is incomplete. It lacks information about return format (e.g., fields returned), error handling, pagination, and specifics like date format validation. The tool's complexity merits more detail.

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?

With only 33% schema description coverage, the description adds value through examples showing parameter combinations, but does not explain each parameter's meaning beyond the schema. For instance, endDate references startDate but no description; the description doesn't elaborate on date format or minValue usage.

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 tool searches insider trading transactions (Form 4 filings) by ticker, with filtering options. It distinguishes itself from broader sibling tools like search_filings by specifying 'insider trades' and 'Form 4'.

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 provides example calls indicating typical use cases, but does not explicitly state when to avoid this tool or mention alternative tools for different types of financial data. Usage is implied rather than explicit.

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