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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered. The description contributes real value by disclosing what data comes back, but says nothing about auth requirements, behavior for an unknown poolID, or freshness of the 'current usage' figures.

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 front-loaded sentence with no filler; the returned-field enumeration is dense and every clause carries information.

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?

With no output schema, the description usefully enumerates the returned fields, which is exactly what an agent needs to know about the payload. Only minor gaps remain (error behavior, permission requirements) for an otherwise simple two-parameter read tool.

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 both orgID and poolID documented including their ID patterns, so the schema carries the parameter burden. The description adds no additional meaning about the identifiers, which is the expected baseline here.

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 ('Returns one machine pool's configuration and current usage') and enumerates the returned facets (provider, machine settings, CPU, memory, limits, idle deletion policy). It is unmistakably a single-resource getter, though it never names pools_list as the alternative for enumerating pools.

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 phrase 'one machine pool's' implies a lookup-by-ID use case versus a list operation, which is the only usage signal present. There is no explicit statement of when to prefer this over pools_list or what prerequisites (e.g., permission to read the pool) apply.

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