get_egress_ip

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

With no annotations provided, the description carries the full burden and does reasonably well: it declares the auth model ('Zero Auth'), the payment semantics for x402 Base USDC including the default developer mock key, and the specific return surface (IPv4/IPv6, TLS cipher, reverse DNS, latency). It omits rate limits and failure modes, but the auth/payment disclosure goes meaningfully beyond what structured fields provide.

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 leading purpose sentence is well front-loaded, but the 'Keywords:' line and the 'Args:' block repeating schema fields add bulk without value. The return-values sentence is worth its place; the rest is only partly earned.

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?

There is no output schema and no annotations, so the description must cover the return contract, and it does list the fields returned. That said, for a 3-parameter tool with 0% schema coverage it leaves the parameter contract thin and never addresses overlap with the sibling 'what_is_my_ip_tool'.

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 0%, so the description must compensate, and it largely fails: 'input_data' is described only as 'Optional target payload or query string' and 'parameters' as 'Optional dictionary of arguments', both of which are vague restatements. Only 'payment_signature' gets real meaning (x402 USDC tx hash with mock default), leaving two of three parameters semantically empty.

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+resource: 'Discover caller's public egress IP address and network metadata', which is unambiguous about what it returns. However, it does not distinguish itself from the sibling tool 'what_is_my_ip_tool', which appears to serve the same purpose, leaving the agent unable to choose between them from the description 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 '[Free / Zero Auth]' tag gives a cost/auth signal, but there is no explicit when-to-use guidance, no stated exclusions, and no mention of the near-identical sibling 'what_is_my_ip_tool'. The keyword list ('what is my ip, ip lookup') is search bait rather than usage guidance.

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