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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the safety profile is covered. The description adds genuine behavioral context beyond the annotations: the active-project-grant blocking rule and the cluster-managed exclusion. It does not describe the return value or error behavior, keeping it at 4.

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?

Three tight sentences with the core action front-loaded and constraints following. No filler or repetition. Slightly terse on the exclusion clause, but every sentence earns its place.

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?

No output schema exists, but the description needn't explain return values; it does cover the destructive nature, the blocking precondition, and the route limitation, which are the key facts for a delete tool. Missing only error/response behavior, which is minor here.

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%, with orgID, configuredModelID, and modelProviderConfigID each documented in the schema, so the baseline is 3 per the rules. The description references the configured model but adds no parameter-level format or relationship detail beyond what the schema provides.

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 and resource: 'Deletes only the configured model.' This distinguishes it from siblings like models_update, models_create, and models_list, though it does not explicitly name any sibling. The 'only the configured model' phrasing clarifies scope but is slightly ambiguous about what else might exist.

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?

Gives concrete conditions that govern usage: deletion is blocked while active project grants exist, and cluster-managed configured models cannot be deleted through this route. These are meaningful preconditions an agent needs. No alternative tool is named, so it stops short of a 5.

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