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

The annotations already declare readOnlyHint=false, destructiveHint=false, and idempotentHint=false, so the safety profile is covered. The description adds one genuinely useful behavioral fact beyond them: free-tier accounts are subject to a numeric cap and the refusal message reports it. It says nothing about what is returned on success, whether duplicate names are rejected, or what "Plus" refers to.

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 with the action front-loaded and no filler. The second sentence is terse to the point of being cryptic — "Sans Plus" and "le refus le dit" assume the reader knows the subscription tier and the error behavior — but nothing is wasted.

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 five-parameter mutation tool with no output schema, the description carries the burden of explaining the return value (presumably the created list or its id) and it does not. Combined with zero parameter guidance and a vague quota note, an agent cannot fully predict the call's outcome from this text.

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 coverage is 80% (four of five parameters documented, only `description` bare), which is near the high-coverage baseline where the schema does the work. The description adds no parameter meaning at all — it never mentions `name` being required, the `kind` enum, or the icon/color constraints — so it neither helps nor misleads.

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 first sentence, "Créer une liste", is a verbatim restatement of the title and adds nothing an agent could not read from the name. It does correctly identify a create operation on the list resource, but it does not explain what a "liste" is relative to sibling entities such as dandori_create_wish, even though the kind enum itself includes "wish (avec prix)" — an overlap that invites confusion.

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 statement of when to use this tool rather than dandori_create_wish, dandori_create_project, or dandori_add_list_item, and no preconditions are given. The only contextual note is that non-"Plus" accounts hit a cap, which is a constraint rather than usage guidance.

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