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

The rich annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety profile is covered. The description mostly restates 'Lecture seule' (redundant) and adds a mild distinction that optimization runs are a separate bounded GPU path, but says nothing about the shape or size of the result set.

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, front-loaded with the resource being listed and followed by the scope caveat. No filler, though the second clause is more cryptic than informative.

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 an output schema present the return values need not be described, and annotations cover the safety profile. However, the domain concept of a 'CUDA family' and its relationship to sibling list tools is left unexplained, so an agent has to guess what the results represent.

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, so per the rubric the baseline is 4. There is nothing for the description to clarify beyond what the empty schema already conveys.

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 ('Familles CUDA ArenaScript disponibles') with concrete examples ('nasdaq scalping, monsters…'), so an agent knows it enumerates CUDA families. It does not, however, distinguish itself from similar list siblings such as list_arenascript_monsters or list_arena_assets.

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 explicit when-to-use or when-not guidance, and no routing to an alternative tool. The only hint is a negative one (this is read-only and optimization is a separate path), which is inference rather than guidance.

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