Financial News and Notes MCP Server

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

With no annotations provided, the description carries full burden for behavioral disclosure but provides none. It doesn't indicate whether this is a read or write operation, what permissions might be required, what side effects occur, or how the tool behaves. The generic description offers zero behavioral context beyond what's already obvious from the name.

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?

While technically concise with only three words, this is under-specification rather than effective conciseness. The description doesn't earn its place - it provides no useful information and wastes the opportunity to guide the agent. Good conciseness requires meaningful content, not just brevity.

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 annotations, no output schema, and a completely generic description, this is inadequate for even a simple tool. The description fails to explain what 'MyTool' does, when to use it, what behavior to expect, or what results might be returned. This is the lowest possible completeness score.

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 100% with the single parameter 'message' documented as 'Message to process.' The description adds no additional parameter information beyond what the schema provides. According to scoring rules, when schema coverage is high (>80%), the baseline is 3 even with no parameter info in the description.

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 'MyTool tool description' is a tautology that merely restates the tool name with generic filler words. It provides no specific verb or resource information, doesn't explain what the tool actually does, and fails to distinguish it from any sibling tools. This is the lowest possible score for purpose clarity.

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 absolutely no guidance about when to use this tool versus alternatives. There's no mention of appropriate contexts, prerequisites, or comparisons to sibling tools like api-client, data-processor, example_tool, or file-handler. This leaves the agent with no usage direction.

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