remove_rrset_records

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

Annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is covered. The description adds genuinely new behavioral context: matching is by value (not index), and removing the last record cascades into deleting the RRSet entirely — a consequence an agent could easily miss. It also states the return type (Action).

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?

Three short sentences, zero filler, with the operation stated first and the destructive cascade immediately after. Every sentence carries distinct 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 destructive four-parameter mutation with no output schema, the description covers the biggest risk (implicit RRSet deletion) and the return type. It does not say whether removal is atomic when some values fail to match, nor what an Action return means to the caller.

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 50%, and the schema itself documents zone, name, and record value syntax. The description adds the key semantic that the 'records' array is interpreted as values to match rather than values to set, but it says nothing about the 'type' enum or how non-matching values are handled.

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 ('Remove') and resource ('specific records from an RRSet') plus the matching rule ('matched by value'), which distinguishes it from set_rrset_records and update_rrset_records by implication. It never names those siblings explicitly, so an agent must infer the contrast from the operation names alone.

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 'matched by value' phrasing implies when to use this versus a whole-RRSet delete, but there is no explicit when-to-use/when-not statement and no sibling is named. Guidance is present only by implication.

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