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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed world), so the bar is lower; the description still adds meaningful context by stating the returned content is static program material and that no user data is involved, which reassures on privacy. It does not describe the return structure, but with a read-only static resource that is a minor omission.

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?

One dense sentence, front-loaded with the payoff ('everything to start earning') followed by the concrete contents. It is long but every clause carries substantive information about what will be returned; a short bulleted enumeration would read slightly better but nothing is wasted.

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 one optional enum parameter, no output schema, and full annotation coverage, the definition is close to self-sufficient — the enumerated contents effectively serve as a lightweight description of the return payload. The only gap is that the exact format of the returned kit (text, sections, template bodies) is not stated.

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 coverage is 100% and the single optional parameter already carries a description and an enum, so the schema does the heavy lifting. The description's mention of 'three email templates in the chosen language' confirms which portion the language parameter affects, but adds no syntax or default detail beyond what the schema states.

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 names a specific resource — the partner program kit — and enumerates its contents (rates, 14-day hold, rules, three email templates), so an agent knows this is a reference/content retrieval tool rather than an action. It implicitly separates itself from transactional siblings like request_payout and my_deals but never names one explicitly.

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?

Usage is only implied: an agent can infer it should call this when a user asks about the partner/referral program, rates, or outreach templates. There is no explicit 'use this when...' statement and no exclusion pointing at alternatives such as plans or my_deals.

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