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

With no annotations, the description must carry the burden of disclosing behavioral traits. It states the side effect (removal) and return value (resulting route list), which is essential. However, it does not mention error behavior (e.g., invalid id, no routes configured) or whether removal affects ongoing traffic. This is a basic disclosure, not deeply informative. It does not contradict any annotations since there are none.

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 a single, well-structured sentence that front-loads the primary action and uses backticks for parameters. It contains zero filler or redundant information. Every word contributes to understanding the tool's purpose, conditionally, and return value.

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 tool is a simple removal operation, and the description covers the core behavior (removal scoping) and return value (resulting list). The schema covers all parameters, and the description references id sources indirectly through schema descriptions. For a low-complexity tool without an output schema, this is nearly complete; the only missing element is explicit error/edge-case handling, which is non-critical for selection and invocation in most scenarios.

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%, with each parameter (id, all, serial) having a clear description. The tool description adds minimal semantic value beyond the schema—it reiterates 'by id' and 'when all is true' but does not explain parameter syntax, precedence rules, or edge cases. Per the rubric, baseline 3 applies when schema does the heavy lifting, and the description does not notably exceed that.

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 clearly states the tool's function: removing one mock/abort route by id or all routes on a device. It uses a specific verb ('Remove') and resource ('mock/abort route'), and distinguishes itself from siblings by mentioning the 'all' flag and resulting route list. This is unambiguous and differentiates from related tools like android_traffic_mock_add or android_traffic_mock_list.

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 clearly conveys when to use the tool (removing one specific route by id or clearing all routes via 'all=true'). It does not explicitly compare with alternatives, but the id reference to android_traffic_mock_add/list in the schema and the self-contained behavior give adequate usage context. A slight deduction for not explicitly stating when not to use it (e.g., if only a subset of routes needs removal) or clarifying relationship with list/add tools in the main description.

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