get_market_data

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

No annotations are present, so the description carries full responsibility for behavioral disclosure. It mentions the returned data types (price, market capitalization), but omits details about currency conversion, ticker validation, data freshness, failure modes, or any side effects. This is minimal disclosure for an unannotated tool.

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 efficient sentence with no filler. It front-loads the core operation and object of the call. It is concise but not over-specified; still, it could add a little more useful information without becoming bloated.

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?

The tool has an output schema, so return structure is covered, but the description lacks guidance on when to use this tool, what the currency option implies, and how it relates to the broader financial data suite. For a simple market data tool this is adequate at a basic level but leaves meaningful usage gaps.

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 must compensate. It clarifies that 'ticker' identifies the entity and that the output relates to price and market cap, but it provides no explanation of the 'currency' parameter beyond what the enum and default already show.

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 states a specific verb ('Get') and resource ('latest price and market capitalization') scoped to a ticker. This clearly distinguishes it from sibling tools that retrieve income statements, balance sheets, cash flows, or financial metrics.

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 when-to-use or when-not-to-use guidance is provided. The description implies the tool is for current market data, but it does not identify alternatives or conditions for choosing this over the sibling financial data tools.

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