Financial Modeling Prep MCP Server

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 mentions accessing data via an API and analyzing financial health, but fails to describe critical behaviors: whether this is a read-only operation, any rate limits, authentication requirements, data freshness, error handling, or response format. For a tool with no annotation coverage, this leaves significant gaps in understanding how it behaves.

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 efficiently structured in two sentences: the first states the core function, and the second explains the analytical value. It is front-loaded with the primary purpose and avoids unnecessary elaboration. However, it could be slightly more concise by integrating the analytical insight more seamlessly, but overall it earns its place with zero waste.

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 complexity of financial data tools and the absence of both annotations and an output schema, the description is incomplete. It does not explain what the return values look like (e.g., structure of balance sheet data), any limitations (e.g., historical data availability), or error conditions. For a tool with no structured behavioral or output information, the description should provide more context to be fully helpful.

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 100% description coverage, providing clear details for all three parameters (symbol, limit, period). The description adds no parameter-specific information beyond what the schema already documents. According to scoring rules, when schema_description_coverage is high (>80%), the baseline score is 3 even with no param info in the description, which applies here.

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's purpose: 'Access detailed balance sheet statements for publicly traded companies' and specifies the data elements (assets, liabilities, shareholder equity). It distinguishes itself from siblings like getBalanceSheetStatementGrowth or getBalanceSheetStatementsBulk by focusing on the core statement data rather than growth metrics or bulk operations. However, it doesn't explicitly contrast with getBalanceSheetStatementAsReported or getBalanceSheetStatementTTM, which are closely related siblings.

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 many sibling tools related to balance sheets (e.g., getBalanceSheetStatementGrowth, getBalanceSheetStatementAsReported, getBalanceSheetStatementTTM), there is no indication of which scenarios favor this tool over others. It mentions analyzing financial health but doesn't specify prerequisites, limitations, or comparative use cases.

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