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

With no annotations provided, the description carries the full disclosure burden. It does add genuinely useful behavioral context — the agent is recurring, per-upload, and consumes credits against a monthly budget — but omits permission/authentication requirements, what happens if the budget is exhausted, and whether the agent starts running immediately.

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, front-loaded with the substantive behavior, with no filler. The endpoint-mapping sentence is marginal but harmless.

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?

This is a mutating, credit-consuming creation tool with no annotations and zero schema description coverage on four parameters; an output schema exists so return values need not be covered. The description leaves too much unsaid about api_key, naming, and budget behavior for an agent to invoke it with confidence.

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 0% across four parameters, so the description must compensate and largely does not. It only implicitly touches tracker_id ('a tracker's channels') and monthly_budget ('monthly credit budget'); name and api_key get no attention at all, and there is no clarification of budget units or credit semantics.

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 specifies the resource being created and its exact behavior (runs a Video Review on each new long upload of a tracker's channels within a monthly credit budget), which is far more than a restatement of the name. It does not, however, distinguish this from siblings like update_agent, list_agents, or get_agent, relying on the name alone to convey the 'create' verb.

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 statement of when to use this tool versus alternatives such as update_agent or list_agents, nor any prerequisites. The only orienting phrase is 'Same as POST /v1/agents', which is an API mapping rather than usage guidance.

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