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

Annotations already declare readOnly, idempotent, openWorld and non-destructive, so the safety bar is covered; the description still adds value by spelling out the negative behaviors ('does not install, connect, call or run tools') and the return payload (name, source, link, capability tags, heuristic score). Useful beyond the annotations, though it doesn't mention limits or failure modes.

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?

Three tightly packed sentences that lead with the purpose, then returns, then safety, then mode routing. No filler, though the trailing mode sentence slightly duplicates the schema enum.

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?

With no output schema, the description compensates by naming the returned fields and the five-candidate cap, and annotations carry the safety profile. The sibling tool relationship and any rate-limit or empty-result behavior are still undocumented, leaving a small gap.

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%, so all three parameters are already documented, including the enum values of operation. The description's partial restatement of ask/introduce adds no syntax or format detail beyond the schema, so the baseline 3 applies.

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?

States a specific verb and resource ('Find public MCP servers, tools and SDKs') plus the input mode ('task keywords'), so the agent knows exactly what the tool returns. It does not differentiate itself from the sibling kloudy_connect_card, which is the one gap keeping it below a 5.

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 gives clear context for the tool and routes between its internal modes ('Use ask for a short Kloudy setup request, or introduce for a short description'). It offers no when-not-to-use condition and never mentions the sibling tool kloudy_connect_card, so routing between tools is left to inference.

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