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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safe/closed-world profile is covered structurally. The description reinforces scope ('public metadata only') but adds no detail on content, size, or freshness of the metadata returned. Adequate but not enriching.

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?

Two short sentences, the positive scope stated first and the exclusion second. Every word earns its place with no redundancy.

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 parameterless, non-destructive read tool with no output schema required, the description covers what it returns (metadata and discovery info) and what it is not for. It could note roughly what 'discovery information' contains, but an agent has enough to invoke it correctly.

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 tool takes zero parameters with 100% schema coverage, so there is nothing for the description to disambiguate. Baseline 4 applies; no parameter semantics are needed or missing.

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 names the resource (AgentMesh public metadata and discovery information) and the verb 'return', so an agent knows this is a read-only info/discovery endpoint rather than a task executor. It stops short of explicitly distinguishing itself from siblings like discover_agents or search_agentmesh, which also touch discovery.

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?

Provides a clear negative guideline — do not use it to solve a user task or obtain a missing capability — which is the main misuse risk for a metadata endpoint. It does not, however, name the sibling to use instead (e.g., discover_agents or ask_agentmesh), leaving the alternative implicit.

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