Add Records to DNS Zone RRSet

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

Annotations provide some transparency (readOnlyHint=false, destructiveHint=false). The description adds that records are added without removal and TTL can be updated. It does not disclose behavior on duplicate records, existence of the RRSet, or rate limits. The description adds value but is not comprehensive.

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 two sentences, front-loaded with the primary action and key differentiator. Every word adds value; no extraneous 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?

Given the tool has 5 parameters with 100% schema coverage, no output schema, and no nested objects, the description is adequate but minimal. It covers the core operation but lacks context on return values, error conditions, or prerequisites.

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 parameters are already fully described. The description does not add additional semantics beyond what the schema provides, such as constraints on record values or interactions between parameters. It only restates the optional TTL update.

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 clearly states that the tool adds new records to an existing RRSet without removing existing ones, and optionally updates the TTL. This distinguishes it from siblings like 'hetzner_set_zone_rrset_records' (which likely replaces all records) and 'hetzner_remove_zone_rrset_records'.

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 mentions 'without removing existing ones,' which implies when to use this over a set/replace operation. However, it does not explicitly state when not to use it or provide direct alternatives. The sibling tool names (e.g., 'set', 'remove') provide context but are not referenced in the description.

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