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 must fully disclose behavioral traits. It states the tool accesses a list via an API, implying a read-only operation, but does not clarify if it's a static list, real-time data, or includes metadata like pair names or codes. It also lacks details on rate limits, authentication needs, or potential errors. The description adds some context but falls short of providing comprehensive behavioral transparency for an API-based 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 two sentences: the first states the tool's purpose, and the second provides a use case. It is front-loaded with the core function, but the second sentence ('Analyze and track...') is somewhat promotional and could be more direct about tool behavior. While not verbose, it includes a sentence that doesn't add critical operational information, slightly reducing efficiency.

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 has 0 parameters, no annotations, and no output schema, the description provides a basic understanding of what the tool does (access a forex currency pairs list). However, it lacks details on output format (e.g., JSON structure, fields included), data freshness, or error handling, which are important for an API tool. The description is minimally complete but leaves gaps that could hinder effective use by an agent.

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 0 parameters with 100% description coverage, meaning no parameters need documentation. The description does not mention any parameters, which is appropriate. It adds value by explaining the resource being accessed (currency pairs list) and the API source, compensating for the lack of parameter details. Since there are no parameters, the baseline is 4, as the description adequately covers the tool's function without redundant parameter info.

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 a comprehensive list of all currency pairs traded on the forex market with the FMP Forex Currency Pairs API.' It specifies the verb ('Access'), resource ('list of all currency pairs'), and source ('FMP Forex Currency Pairs API'), making the intent unambiguous. However, it does not explicitly differentiate from sibling tools like 'getForexQuote' or 'getForexQuotes', which likely retrieve specific quotes rather than a full list.

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 minimal guidance on when to use this tool. It mentions 'Analyze and track the performance of currency pairs to make informed investment decisions,' which implies a use case but does not specify when to choose this over alternatives like 'getForexQuotes' or 'getForexList' (if duplicates exist). No explicit when-not-to-use or prerequisite information is given, leaving the agent to infer usage from context alone.

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