analytics_by_channel

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

No annotations are provided, so the description carries the burden of disclosing behavior. It states the upgrade requirement, a useful prerequisite, but omits all other behavioral information such as what the tool returns or side effects.

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, short sentence that is front-loaded with the upgrade alert. It is concise and to the point, though it sacrifices substance; however, for what it conveys, it is efficiently structured.

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, no annotations, and 0 params, the description is the only source of info. It only addresses licensing, completely failing to explain the tool's actual purpose, expected outputs, or use cases. This is inadequate for any agent to select or invoke 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 zero parameters and 100% coverage (vacuously), so the description does not need to explain parameters. Baseline for 0 params is 4, and no additional information is required.

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 does not state what the tool does; it only says it requires a higher plan and to use license_status. It fails to define analytics_by_channel's function (e.g., viewing analytics by channel), making it a misleading tool description.

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 says to use license_status to see options, which is a pointer to an alternative, but it does not explain when to use this tool or how it compares to sibling analytics tools. It only implies you should not use it until upgraded.

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