Update Personal Nameserver

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

Annotations indicate idempotent and non-destructive behavior, which aligns with 'Create or update'. The description adds context explaining glue records and registry-level operation, enhancing transparency without contradicting annotations.

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 efficiently convey the tool's purpose and the concept of glue records. Every word serves a purpose, with no redundancy or filler.

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 CRUD-like tool with 100% schema coverage and idempotent annotations, the description sufficiently explains the operation. It could mention whether it replaces or appends IPs, but idempotence implies idempotent behavior; completeness is adequate.

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 description coverage is 100%, so the schema already documents all three parameters (domain, host, ips). The description adds no parameter-specific details beyond the schema, meeting the baseline without extra value.

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 the tool creates or updates a personal nameserver host with IP addresses, explaining they are glue records. This distinguishes it from sibling tools like update_nameservers, which handle domain nameservers, not glue 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 implies usage for managing glue records at the registry level, which is distinct from other DNS tools. However, it lacks explicit when-to-use or when-not-to-use guidance compared to alternatives, though the context makes it reasonably clear.

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