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

Annotations already declare readOnly, idempotent, non-destructive, closed-world, which covers the safety profile. The description adds almost nothing beyond that – it hints at an 'open node' distinction with counts but never explains what open/closed means or how it affects the output. No pagination, ordering, or scoping behavior disclosed.

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 short sentence, so no bloat, but it is not front-loaded with a clear statement of what is listed – it opens with a confusing country/node framing that muddies rather than focuses the reader.

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 list tool with no output schema and no annotations covering return shape, the description must explain what is returned. Instead it gives a cryptic list of fields ('door', 'state', 'counts') without meaning, leaving the agent unsure what a 'node' or an 'open node' is.

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?

Zero parameters, so the baseline is 4. The description cannot add parameter meaning and correctly says nothing about inputs.

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 says 'List the countries on the record' but then describes returning 'each node's door, languages, state and counts' – nodes and countries are conflated, and the phrasing ('door'?) is obscure. The verb+resource is muddled and an agent cannot tell what this returns versus get_record or get_offers.

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?

No when-to-use, no when-not-to-use, and no mention of any sibling despite eight siblings including get_record and get_offers which likely overlap. The description offers no routing guidance at all.

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