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

Annotations already declare readOnlyHint=true, destructiveHint=false, openWorldHint=false, and idempotentHint=false, so the safety profile is fully covered. The description adds useful auth context by stating the required permission (servers:read) and account/MCP key requirement. It does not add return format or pagination details, but given the annotation coverage, this is an appropriate level.

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?

The description is very short, but its main sentence 'Snapshots of a server' is redundant with the title and does not earn its place. The bracketed permission and account notes are useful, but the overall structure is under-specified rather than efficiently concise, similar to sparse definitions that leave an agent without needed context.

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 read-only list operation with a fully documented single parameter and complete safety annotations, the description provides the essential auth requirements and confirms the resource. However, it still lacks a clear operational verb and any usage context, so it is only minimally complete for an agent unfamiliar with the API. The combination of annotations and schema fills most of the gap.

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 100% and the single serverId parameter is documented in the schema as coming from gpucloud_list_servers. The description adds no additional parameter meaning, syntax, or examples beyond what the schema provides. With full schema coverage, the baseline score of 3 is correct.

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 'Snapshots of a server' merely restates the tool title 'Server snapshots' without a verb or explicit statement that it lists snapshots. It does not distinguish this tool from the closely named sibling gpucloud_list_server_backups. This is a tautological restatement rather than a clear purpose statement.

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 guidance on when to use this tool versus alternatives such as gpucloud_list_server_backups or when to call it at all. The only conditions mentioned are permission and account requirements, which are prerequisites rather than usage selection criteria. No exclusions or comparisons are provided.

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