Изменить DNS-запись

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

No annotations are provided, so the description carries the full transparency burden. It discloses the HTTP method (PATCH) and endpoint structure, which implies partial update semantics, but it does not state side effects, permission requirements, or that unspecified fields remain unchanged. This is a notable gap for a mutation 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?

The description is a single, concise sentence that front-loads the verb and resource ('Изменить DNS-запись'), followed by the id source and HTTP endpoint. There is no filler or redundant information.

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 7-parameter update tool with no annotations and no output schema, the description provides the essential operation and id lookup guidance, but omits details about partial update behavior, success/failure responses, and any prerequisites. It is adequate but leaves significant ambiguity for an agent.

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%, so the baseline is 3. The description adds meaningful context by instructing the agent to obtain record_id from list_dns_records and by revealing the endpoint path structure (fqdn and record_id as path parameters), which is not apparent from the schema alone.

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 the specific verb 'Изменить' (change) and the resource 'DNS-запись' (DNS record), clearly indicating an update operation. It also specifies the identifier (id) and directs the user to list_dns_records, distinguishing it from create/delete DNS record siblings.

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 clarifies that existing records are modified by providing the id lookup source (list_dns_records), which implies this tool is for updates to existing records. However, it does not explicitly mention alternatives like create_dns_record or delete_dns_record or provide exclusion criteria, so it stops short of a full 5.

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