ip6_tracert

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

No annotations are provided, so the description carries the full behavioral burden. The explicit '(read-only)' label is a valuable safety signal, indicating the operation does not mutate system state. However, it does not disclose output format, execution duration, packet/loop counts, or whether the command runs directly on the host or via the router.

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 one short sentence with no filler. The operation, target type, and read-only trait are all front-loaded and immediately parseable.

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 one-parameter read-only diagnostic, the description plus schema are sufficient for a basic invocation. The lack of an output schema means return behavior is not defined, but the tool name and description imply a standard traceroute result. It would be more complete with a note about how this differs from ip_tracert or ip6_ping.

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?

The schema already defines host as a required string with ipv6 format, and the description restates that the host is IPv6. This adds little beyond the schema because the parameter name and format are self-explanatory. For a single parameter this is acceptable, but with 0% schema description coverage the description does not compensate with any extra detail such as hostname resolution behavior or exact semantics.

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 states a specific verb and resource: 'Traceroute to an IPv6 host'. It also identifies the operation as read-only, which clearly separates it from configuration or state-changing tools. The sibling list includes ip6_ping and ip_tracert, and the IPv6 + tracert combination makes the purpose unambiguous.

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 the tool is for network path diagnostics to an IPv6 destination, but it gives no explicit guidance on when to choose this over ip6_ping or ip_tracert. There are also no notes about prerequisites, accessibility, or environment conditions. The basic use case is clear, but alternatives are not compared.

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