get_hourly_forecast

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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint, so the safety profile is covered. The description adds nothing beyond the name: no timezone, no time range covered, no granularity, and no indication of whether values are a rolling window or tied to a session.

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. It is efficient, though the extreme brevity leaves no room for even one clarifying clause about what the forecast represents.

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 is the only place to explain the return shape, and it does not say what an 'hourly review forecast' actually contains (per-hour due counts, time span, timezone). For a simple zero-arg read tool this is minimally adequate but leaves real ambiguity unresolved.

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 tool takes zero parameters, so per the scoring rules the baseline is 4. There is no parameter information the description could add, and none is needed.

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 ('Get the hourly review forecast'), and the word 'hourly' implicitly distinguishes it from the sibling get_daily_forecast. It is clear, though it never explicitly contrasts itself with that sibling or explains what a 'forecast' contains.

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?

There is no when-to-use guidance, no mention of when to prefer it over get_daily_forecast, and no prerequisites noted. The agent must infer that this tool is for hour-granularity review scheduling data purely from the name.

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