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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety is covered. The description adds genuine behavior beyond that: the ordering semantics differ per type and the default type is article — non-obvious traits an agent could not derive from annotations or schema. It omits cursor/pagination behavior, which keeps it from a 5.

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 front-loaded: the core behavior and the per-type ordering come first, the enum catalogue second. The inline counts per type are long and will drift out of date, but they do help an agent pick a type. Dense but well ordered, with little outright padding.

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 read-only listing tool with no output schema, the description should at least sketch what a result contains and how `cursor`/`limit` interact for paging. Those gaps remain, though the annotations and the rich type catalogue mean an agent can still call it correctly for the common case.

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 only 25%, so the description needs to compensate — and it does partially, labeling every enum value of `type` with a human-readable meaning and item counts, plus stating the default. However, `limit`, `cursor` and `section` get no treatment in the description; `section` is covered by the schema itself, while `limit` and `cursor` remain undocumented anywhere.

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 description names a specific resource ('les contenus les plus récents') and a specific selector ('d'un type', default 'article'), and spells out the sort order per type (event = upcoming by start date, cloud_incident = by last update). It never names a sibling such as search_content or get_content, so the boundary with the search/list family must be inferred from wording alone.

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?

Usage is only implied: 'les plus récents' signals a recency-ordered feed versus a query-based search, and the per-type ordering notes help pick a type. There is no explicit when-to-use / when-not-to-use statement and no named alternative to route to, so an agent must still guess whether another tool fits better.

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