getNasdaqConstituents

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

Annotations already indicate readOnly, idempotent, and openWorld hints. The description adds no behavioral details beyond these, such as pagination or rate limits. With annotations covering safety, the description adds minimal 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 short but somewhat vague (e.g., 'Access comprehensive data' is broad). It could be more concise by directly stating it returns Nasdaq constituents. The phrase 'Monitor real-time movements' may imply continuous monitoring, which is not a tool capability.

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 no parameters and no output schema, the description should specify what the tool returns (likely a list of constituents). It mentions 'companies listed' but does not explicitly state the return format. Sibling tools suggest it returns constituent data, but the description over-promises without 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?

No parameters exist, so the input schema provides full coverage. The description does not explicitly state that no parameters are needed, but the lack of parameters is self-evident from the schema. Baseline 4 is appropriate.

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 that the tool accesses comprehensive Nasdaq index data, including real-time movements and historical performance of listed companies. It is specific to the Nasdaq index, distinguishing it from sibling tools like getSP500Constituents or getDowJonesConstituents.

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 explicit guidance on when to use this tool versus alternatives. The name is self-explanatory, but the description does not provide context or exclusions, leaving the agent to infer usage from the name alone.

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