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

Annotations already establish readOnlyHint and destructiveHint=false, so the description's added value is the cost information ('uses no credits') and the fact it returns the slot budget (slots used and limit), which is real operational context beyond the schema. It stops short of describing ordering or whether results are cached or limited, so not a full 5.

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?

Three short sentences, front-loaded with what is returned, then routing guidance, then return/cost detail. Every sentence carries distinct information with no restatement of the title.

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?

No output schema exists, and the description compensates by describing the return shape (creators[] with id, slots used, limit). For a no-parameter read tool with annotations covering safety, nothing needed to invoke it correctly is missing.

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?

There are zero parameters, so per the baseline this scores 4; the description correctly notes that it returns creators[] with their id, which is the only 'input-adjacent' semantic an agent needs before calling it.

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 concrete verb and resource (lists the creators the creator tracks) plus the payload contents: scan status, content pillars, this month's numbers. It is immediately distinguishable from siblings like get_creator_report or untrack_creator, which operate on a single already-chosen creator.

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?

Explicitly routes the agent: use this to pick whom to study via get_creator_report, or which slot to free via untrack_creator. That both names the alternatives and the conditions that select them, so the agent never has to infer the workflow.

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