Finance Tools MCP

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states what the tool does ('Get recent insider trading activity') without any details on traits like data freshness, rate limits, authentication needs, error handling, or what 'recent' means. This is inadequate for a tool with potential complexity in financial data retrieval.

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 extremely concise with a single sentence: 'Get recent insider trading activity.' It is front-loaded and wastes no words, making it easy to parse quickly. Every word contributes directly to the core purpose without unnecessary elaboration.

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 the tool's complexity (financial data retrieval), lack of annotations, no output schema, and low schema coverage, the description is incomplete. It doesn't cover behavioral aspects, parameter details, or output expectations, leaving the agent with insufficient information to use the tool effectively in context with its siblings.

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?

The input schema has 1 parameter ('ticker') with 0% description coverage, meaning the schema provides no semantic details. The description does not mention the parameter at all, failing to add any meaning beyond the schema. For a tool with undocumented parameters, this is a significant gap, as it doesn't explain what 'ticker' represents or how it should be formatted.

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 'Get recent insider trading activity' clearly states the verb ('Get') and resource ('insider trading activity'), making the purpose understandable. However, it lacks specificity about scope (e.g., time frame, data source) and doesn't distinguish from siblings like 'get_ticker_data' or 'get_financial_statements', which might also provide financial data. It's not tautological but remains somewhat vague.

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 no guidance on when to use this tool versus alternatives. With siblings such as 'get_ticker_data' or 'get_financial_statements' that might overlap in financial data retrieval, there's no indication of when this specific tool is appropriate, nor any prerequisites or exclusions mentioned. This leaves the agent without context for selection.

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