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

Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=true, so the safety profile is covered. The description adds the HTTP method and path, but says nothing beyond annotations about reversibility, auth requirements, or side effects.

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?

A single compact sentence with the action and endpoint front-loaded; nothing is redundant or buried. Very tight, though it could carry slightly more useful detail without bloat.

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?

An output schema exists so return values need not be explained, and annotations cover the destructive/idempotent behavior. For a simple two-parameter delete tool the description is nearly complete, missing only usage context and confirmation of what gets removed.

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 both api_key and route_id are already documented in the schema. The description's 'Requires route_id' merely restates the required field and adds no format or interpretation detail beyond the schema. Baseline 3 applies.

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 ('Delete a Retrieve route') and even gives the underlying endpoint (POST /routes/delete/{route_id}), so it is clearly distinguished from claix.routes.create/edit and claix.schemas.delete. It stops short of explicitly contrasting with any sibling, which keeps it just under a 5.

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 says only 'Requires route_id' and gives no when-to-use/when-not guidance, no prerequisites, and no reference to alternatives like claix.routes.edit. Usage is only weakly implied by the verb 'Delete'.

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