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

With no annotations, the description carries the full burden, and it does disclose a genuinely useful operational trait: the tool is unavailable during the legal blackout periods of 17–18 Apr and 1–2 May 2027. It says nothing about ordering, pagination, or how the default limit of 50 interacts with the claim of 'all' polls, which is a real gap for an unannotated tool.

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 sentences, front-loaded with the resource, and the field enumeration is compact rather than padded. The availability caveat is placed at the end where it belongs, though the first sentence is a long run-on list.

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 does well to enumerate returned fields (sample, fieldwork, official Commission des sondages link). It still leaves out how many results come back by default, whether the limit truncates the list, and how it relates to the sibling single-election tools.

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 single parameter 'limit' has 0% schema description coverage and is never mentioned in the description, so the agent must infer that results are paginated and that 50 is the default. The description's word 'all' arguably misleads here, since a limit of 50 may truncate the set.

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 and scope: 'all first-round polls with every scenario, runoff polls' for the French presidential election 2027, and lists the fields returned. It is clear what a caller gets, though it does not differentiate itself from close siblings such as get_france_presidential_2027 or get_france_runoff_2027, which the mention of runoff polls partially overlaps.

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 call this list tool rather than get_france_presidential_2027, get_france_runoff_2027, get_latest_polls or search_poll_archive. The only guidance given is the legal blackout window, which tells the agent when the tool fails rather than when to select it.

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