cerebrochain-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. It successfully discloses data freshness ('real-time'), access tier ('Premium tool'), and authentication requirements ('Requires API key'). It does not disclose rate limits, error behaviors, or data scope boundaries, preventing a perfect score.

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 consists of two highly efficient sentences with no waste. The first sentence front-loads the core value proposition and specific metric types; the second sentence provides critical access constraints. Every word earns its place.

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 low complexity (zero parameters) and lack of output schema, the description adequately covers the tool's purpose and return value categories. It compensates for the missing output schema by enumerating expected metric types. Minor gap: does not specify the scope/entity of the metrics (e.g., company-wide vs. departmental).

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 contains zero parameters. Per the evaluation rules, zero parameters establishes a baseline score of 4. The description appropriately does not fabricate parameter details.

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 uses a specific verb ('Get') and resource ('financial metrics') and lists concrete examples (revenue, margins, cash flow, profit/loss). It clearly distinguishes from operational siblings like check_stock_levels and track_shipment by specifying the financial domain.

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 prerequisites ('Premium tool', 'Requires API key') but lacks explicit guidance on when to use this versus sibling tools. While the financial domain differs from the operational siblings (fleet, orders, shipping), there is no explicit comparison to get_kpi_dashboard or guidance on selection criteria.

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