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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so safety is fully covered by structured data. The description adds that the response includes a measured finding per axis plus 'buying questions no page can ever answer', which hints at return content but is vague about structure or scope.

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?

A single front-loaded sentence that states the resource first and layers on the return contents; it is efficient with no filler, though the nested clauses make it dense to parse.

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 must carry the return semantics, and it only partly does: it names three categories of output without explaining what an 'axis' is or how to read the score. For a one-parameter read tool this is adequate but leaves the agent guessing at interpretation.

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?

Only one parameter (domaine) and schema coverage is 100%, so the schema already carries the meaning ('a host name, e.g. renault.fr'). The description adds no syntax or constraint detail beyond that, which matches the baseline-3 case.

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 verb 'Returns' and the object 'weakest axes of a published domain' give a rough sense of a diagnostic/audit tool, but 'axes' and 'published domain' are unexplained jargon that a new agent must guess at. It does not differentiate itself from the sibling 'agent_readiness', which sounds like a closely related readiness/audit concept.

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?

There is no when-to-use guidance, no prerequisites, and no mention of the alternatives among siblings (agent_readiness, secteur, secteurs_disponibles). The agent is left to infer the trigger condition from the name alone.

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