compare_servers

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

With no annotations, the description carries full burden. It discloses the output content (quality scores, install paths, etc.) but does not mention any side effects, auth requirements, or that it is a read-only operation. It assumes a non-destructive nature, but this is not explicit.

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?

One sentence encapsulates the core functionality without any wasted words. It is front-loaded with the key action 'Side-by-side comparison' and details the compared attributes.

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 simple one-parameter tool with no output schema, the description is relatively complete by listing the compared attributes. However, it does not mention output format, ordering, or whether results are aggregated, which would enhance completeness.

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 coverage is 100% for the single parameter 'slugs', with min/max items already defined. The description does not add semantic detail beyond what the schema provides, so it meets the baseline.

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 compares 2-5 MCP servers side-by-side, listing specific attributes (quality scores, install paths, etc.). This distinguishes it from siblings like assess_server (single server) and recommend_mcp_for_task (recommendation).

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 implies use for comparing multiple servers but does not explicitly state when to use it versus alternatives or any prerequisites. It could benefit from guidance on when to choose compare_servers over assess_server or search_mcp_servers.

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