Seo Api2 MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure but provides none. It doesn't indicate whether this is a read-only calculation, whether it makes external API calls, what format the output takes, or any behavioral characteristics. The description is completely silent on how the tool 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?

While technically concise with just two words, this is under-specification rather than effective conciseness. The description fails to provide any meaningful information that would help an agent understand or use the tool. Every word should earn its place, but here the words provide no operational value.

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?

For a calculation tool with 3 required parameters and no output schema, the description is completely inadequate. It doesn't explain what the tool calculates, what the output represents, or how the parameters interact. Given the complexity of financial calculations and the lack of annotations, this description provides insufficient context for proper tool selection and invocation.

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 schema has 100% description coverage with clear parameter descriptions (impressions, CTR, CPC), so the baseline is 3. The tool description adds zero additional parameter information beyond what's already in the schema. It doesn't explain the relationship between parameters or the calculation formula.

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 'Adsense Calculator' is a tautology that merely restates the tool name without specifying what it actually does. It doesn't mention any verb or action, nor does it indicate what resource it operates on or what calculation it performs. This provides no meaningful information beyond what's already in the name.

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 are no contextual cues, no mention of prerequisites, and no differentiation from the 30+ sibling tools listed. The agent would have no idea when this calculator is appropriate versus other tools.

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