get_vast_channel_forecast

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

No annotations are provided, so the description carries the full burden. It indicates a read operation with 'Get', but does not disclose what the report contains, whether it is a summary or detailed data, any required permissions, or return format. This is a minimal disclosure that adds little beyond the tool name.

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 a single, concise sentence with no unnecessary words. It is front-loaded with the action and resource, making it easy to scan.

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?

The tool has only two optional parameters and no output schema, so the setting is relatively simple. However, the description does not explain what 'preset' or 'timezone' mean in practice, nor does it clarify how this relates to sibling forecast tools. It is minimally viable but lacks helpful context.

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%, so the baseline is 3. The parameter descriptions in the schema ('Date preset', 'Timezone') are sparse but self-explanatory. The tool description does not add any additional context about how these parameters behave or their allowed values.

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 uses a specific verb ('Get') and resource ('VAST channel forecast report'), clearly indicating a read operation for a forecast. It is distinguishable from sibling forecast tools by name and phrasing, but it does not explicitly differentiate from tools like get_vast_forecast or get_display_channel_forecast.

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 'VAST channel forecast report' implies the tool is used when a forecast for a VAST channel is needed, providing some usage context. However, there is no explicit guidance on when to choose this over similar forecast tools (e.g., get_vast_forecast) or any exclusions.

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