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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds only the implication that the returned data is publicly visible, and says nothing about authentication requirements, whether non-existent agent ids error, or what the response contains.

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?

It is a single short sentence fragment with no wasted words, but the brevity comes from under-specification rather than disciplined editing. Nothing is front-loaded because there is essentially nothing to front-load.

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?

This is a simple one-parameter read tool with annotations and no output schema, so requirements are modest, but the description never says what fields the profile includes or how failures behave. Given no output schema exists, some description of the returned profile content would be expected.

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?

There is a single parameter with 100% schema description coverage ("Agent id (agt_...)"), including the id format. The description adds no meaning beyond the schema, so the baseline of 3 is appropriate for a fully documented single parameter.

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?

"Public profile of an agent" is a noun phrase that essentially restates the tool name get_agent, with only the word 'public' adding nuance. There is no verb, no statement of what is looked up or returned, and no differentiation from the sibling get_my_agent.

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?

No when-to-use guidance is given. The obvious alternative, get_my_agent (own profile) versus get_agent (another agent's profile), is never named or contrasted, leaving the agent to infer the distinction from names alone.

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