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

Annotations declare readOnlyHint=false, destructiveHint=false, idempotentHint=false; the description adds meaningful context beyond that by explaining that no cluster state changes until join_cluster_to_mesh. It does not address whether duplicate mesh names are allowed or what identifier the created mesh returns.

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 short sentences with no filler: the creation action first, the state-change caveat second, the prerequisite third. Each sentence carries distinct information.

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 single-parameter, non-destructive create with no output schema and annotations covering the safety profile, the description covers purpose, side effects, and ordering. Minor gap: it does not hint at what the call returns (e.g. a mesh identifier) that later join/readiness calls would need.

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% and the single 'name' parameter already documents the expected human-readable format with an example. The description adds no syntax or constraint detail beyond the schema, so 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 ('Create a new, empty cluster mesh') and sets it apart from neighboring mesh tools by clarifying that it only records the mesh object. An agent can distinguish it from join_cluster_to_mesh and check_cluster_mesh_readiness without opening schemas.

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?

Explicitly routes the agent: run check_cluster_mesh_readiness first, then use join_cluster_to_mesh to actually attach clusters. It states the precondition, the follow-up action, and the fact that nothing changes until the join step.

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