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

No annotations are provided, so the description carries the full burden; it does disclose 'Read-only', which is the key safety trait for an agent. However it says nothing about rate limits, lookup failures (e.g. no abuse contact found), or what is returned when a host resolves to multiple IPs.

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 tightly front-loaded sentence covering purpose, source, use case, and safety trait with zero filler. The key action is stated first.

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 lookup with no output schema and no annotations, the description supplies source, scope, motivation, and read-only status. Minor gap: it doesn't say what happens on a host with no resolvable IP or no listed abuse contact.

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 single parameter is fully documented with examples in the schema. The description adds only the host-resolution nuance, which the schema's 'host name' example already implies, so baseline 3 is appropriate.

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 ('Find'), the exact resource (abuse-reporting e-mail(s) for an IP or resolved host IP), and names the backing service (RIPEstat's abuse-contact-finder). It also implicitly distinguishes itself from sibling 'disclosure_contacts' by scoping to IP-based abuse reporting.

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?

Gives clear context ('where to report a scanner or attacker surfaced by ip_reputation'), explicitly pointing to the upstream sibling that generates the need. No explicit when-not or alternative tool named, so it falls short of a 5.

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