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

With no annotations provided, the description must carry the full burden of behavioral disclosure. It does state the mutating action and the return value ('Returns the resulting route list'), which is useful. However, it does not disclose side effects such as irreversibility, what happens if the id does not exist, or the behavior when both id and all are supplied. The description is adequate but not deeply transparent.

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 sentence conveys the action, both modes of operation, and the return value with no filler or repetition. The most important information ('Remove') is front-loaded, and every phrase contributes to the agent's understanding of how to use the tool.

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?

The description includes the return value, which is important given the lack of an output schema. However, it leaves open a critical edge case: the schema allows both id and all to be provided simultaneously, but the description doesn't state what happens in that case or what occurs when neither is provided. For a mutation tool with no annotations and no output schema, this gap prevents the description from being fully complete.

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 documents all three parameters with descriptions, so the baseline is 3. The description's references to 'by id' and 'when all is true' essentially mirror the schema's own descriptions without adding further semantics. It does not clarify the relationship between id and all (e.g., whether they are mutually exclusive), so there is no added meaning beyond the schema.

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 opens with a specific action, 'Remove', and names the resource as a 'mock/abort route', immediately distinguishing this tool from the sibling android_traffic_mock_add and android_traffic_mock_list tools. It clearly covers both modes of operation (by id and by all), leaving no ambiguity about what the tool does.

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 provides clear context for when to use each parameter: 'by id' for a single route and 'when all is true' for every route on the device. It does not explicitly route the agent away from alternative tools such as android_devtools_mock_remove or ios_traffic_mock_remove, but the tool name and the phrase 'on this device' make the intended context evident. This earns a 4 rather than a 5 because alternatives are not explicitly named.

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