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

Annotations already disclose readOnlyHint=true and destructiveHint=false, covering the safety profile. The description adds the 'optimal scheduling time' context and organization-level scoping, but does not explain how availability is calculated, what 'optimal' depends on, or what the return value looks like. With annotations present, this is acceptable but not enriched.

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 sentences with no wasted words. The core action is front-loaded, immediately followed by a practical usage cue. 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?

For a simple one-optional-parameter read-only tool with annotations covering safety, the definition covers what it does and when to use it. A minor gap is that it does not mention what the tool returns (e.g., a timestamp), but the name and usage make this largely inferable.

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%: the timezone parameter is fully described in the schema. The description does not add any parameter-specific meaning beyond the schema, so it stays at the baseline score.

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 clearly states the action ('Get') and the resource ('the organization's next available queue slot'), explicitly linking it to 'next optimal scheduling time'. It is distinct from sibling tools like list_schedules and create_schedule because it concerns the next available slot rather than managing schedules.

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 provides an explicit trigger: 'Use this when the user asks when the next available scheduling slot is.' It offers clear context for when to select this tool, though it does not mention exclusions or alternatives—none are needed given the sibling list.

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