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

With destructiveHint=true already declaring mutation, the description adds useful behavioral context: the operation is MUTATING, it restores a paused service, and it can alter instance count and CI/CD/autoscaling state. The HTTP endpoint is also disclosed. It does not contradict annotations.

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 compact and front-loaded with the critical MUTATING warning before the action. The endpoint string is useful and earned. The opening 'MUTATING:' is slightly redundant given the title and annotations, but the overall structure is clean and efficient.

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 mutation tool with full schema coverage and a destructiveHint annotation, the description is largely complete: it states the action, the optional restoration behavior, and the HTTP endpoint. It does not explain behavior when the service is not paused or describe the response, but those are not critical for invoking the tool correctly.

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 input schema has 100% description coverage across all six parameters, so the schema already documents each field. The description only adds a high-level note that these settings are optional to restore, which is helpful but does not add 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?

The description states a specific verb and resource: 'resume a paused service', and adds optional restoration of instance count and CI/CD/autoscaling state. This clearly distinguishes it from sibling tools like pause, restart, or scale by focusing on resuming a previously paused service.

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 establishes a clear condition: use this tool to resume a paused service, and optionally restore scaling/CI/CD/autoscaling state. It does not explicitly name alternatives or exclusions, but the 'paused service' condition gives enough contextual guidance for correct selection.

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