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

No annotations are provided, so the description carries the disclosure burden. It clearly indicates a non-mutating, account-scoped list operation and names the output fields, which is good. However, it omits ordering, pagination, and default-limit behavior, leaving some transparency gaps.

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 with no filler. The first sentence defines the operation and output fields, and the second provides a practical use case. Both sentences earn their place and the structure is easy to scan.

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 list tool with one optional parameter and no output schema, the description covers the essential return fields and gives a realistic invocation context. Minor details such as explicit sorting direction and pagination are not critical for a basic recent-items listing.

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 coverage is 100%: the only parameter, limit, is already described in the input schema ('Сколько записей вернуть, до 50'). The description adds no extra parameter meaning, so the baseline score of 3 is appropriate.

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 uses a concrete verb ('Перечисляет') and specifies the resource ('последние расшифровки учётной записи') plus the returned fields: id, file name, duration, and status. It is clear and actionable, though it does not explicitly differentiate itself from the sibling search_transcripts beyond the word 'последние'.

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 description gives a concrete use case: finding the job_id of yesterday's recording without asking a human. This makes the intended context clear, but it does not state when to prefer alternatives like search_transcripts or get_transcript.

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