Get public IP

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint, so the safety profile needs no restating. The description adds genuine context by noting the response includes NAT configuration, which tells the agent what comes back. It says nothing about behavior on a missing/invalid ID or about error semantics, so it only marginally exceeds the annotation baseline.

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?

One short sentence, front-loaded with the verb and resource, with the return-content clause trailing usefully. No filler, no repetition of the title.

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 single-parameter read-only lookup with full schema coverage and complete annotations, the description covers what the tool does and what the response contains (NAT configuration). No output schema exists, so a brief return-value hint is welcome, though a note on behavior for unknown IDs would round it out.

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% and the schema itself documents the single parameter as a UUID sourced from list_public_ips. The description's 'by ID' adds no meaning beyond that, so the baseline of 3 applies — the schema does all the work.

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 and resource ('Get one public IP by ID'), and the singular phrasing distinguishes it from the sibling list_public_ips without naming it. It also hints at returned content ('including its NAT configuration'), so an agent can tell this is a single-resource fetch rather than a listing.

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?

Usage is only implied: the agent should call it when it already has an ID. No explicit guidance on when to prefer this over list_public_ips, list_public_ips_by_vpc, or get_cost_estimate_public_ip, and no statement of prerequisites. Adequate for an obvious lookup but nothing more.

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