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

With no annotations, the description has to carry the behavioral burden, and it does disclose the returned field set, which is valuable given there is no output schema. However it says nothing about what happens when the slug is unknown (empty result vs error) or about access requirements, so the picture is only partial.

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 sentence with no filler, front-loaded on the verb, and the enumerated return fields are easy to scan. It is efficient, though its brevity borders on under-specification captured in other dimensions.

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 simple one-parameter read tool the description covers the output surface, which is the main gap when no output schema exists. Missing are the slug's provenance/format and the not-found behavior, which an agent needs before calling it reliably.

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 description coverage is 0% and the single "slug" parameter has no description in the schema at all. The description never explains what form a slug takes (where an agent obtains one, e.g. from search_guides) or that it is required, so it fails to compensate for the coverage gap.

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?

"Renvoie" supplies a concrete verb and "un guide Caritatif" a concrete resource, and it goes further by naming the returned fields (titre, résumé, catégorie, URL). That makes the single-item detail nature clear against search_guides, but the description never explicitly contrasts itself with its siblings.

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 statement, no mention of when to prefer search_guides or get_ngo instead, and no prerequisites. The only hint is the singular article in "d'un guide", leaving routing entirely to inference.

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