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

With no annotations, the description carries the full behavioral burden. It goes beyond the verb 'remove' by disclosing an important side effect: when the last route is removed, the device is automatically un-armed so traffic is no longer paused. It does not cover error behavior for nonexistent ids, but for a simple removal operation this is a minor gap.

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?

Two short sentences with no filler. The first sentence front-loads the core operation, and the second sentence earns its place by disclosing a meaningful behavioral side effect.

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 simple 2-parameter tool with no output schema, the definition is complete. It specifies what is removed, how the id is obtained, which device to target, and what happens on the last removal. Nothing essential is missing for correct invocation.

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 description coverage is 100%, so the baseline applies. The description adds domain context by calling the id a 'Chrome/WebView route', but the schema already documents both parameters adequately. No additional parameter detail is needed.

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 action ('Remove'), a specific resource ('one Chrome/WebView route'), and the identification method ('by id'). The word 'one' helps distinguish it from the sibling mock_clear tool, making the tool's scope immediately clear.

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?

Usage is implied: an agent should obtain a route id from a mock-list tool and remove a single route. The id parameter description reinforces this by saying 'from *_mock_list'. However, there is no explicit guidance about when not to use this tool or that mock_clear is the alternative for removing all routes.

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