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

Annotations already declare readOnlyHint=true, so the safety profile is covered; the description reinforces this by naming the corresponding read endpoint (GET /files/{uuid}/). It adds no further behavioral context such as error cases for unknown UUIDs or whether the call is cacheable.

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 compact sentences, front-loaded with the action and scoped to 'a single file'. The 12-item field enumeration is long but justified because no output schema exists; only minor tightening is possible.

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 one-parameter read tool with no output schema, the description supplies the missing return-value information by listing the fields, which is exactly what the agent needs. Auth requirements and error behavior remain unstated but are minor here.

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?

Only one parameter (uuid) exists and schema description coverage is 100%, so the schema already documents it. The description only echoes 'uuid' as part of the returned field list, adding no format or sourcing detail beyond the schema — baseline 3.

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?

States a specific verb and resource ('Get full info for a single file') and enumerates the returned fields, which clearly separates it from sibling list tools and from uploadcare_get_file_metadata. An agent can select it without opening the schema.

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?

The scope ('a single file') implies when to use it versus uploadcare_list_files, but there is no explicit when/when-not guidance and the overlapping sibling uploadcare_get_file_metadata is never mentioned. Usage is inferable rather than stated.

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