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

With no annotations, the description carries the full burden. It does disclose the key side effect (an email report is sent), that the audit is free, and that it is a third-party ChargeGuard service — genuinely useful context. It does not say what happens on failure, whether repeated submissions are allowed or throttled, or that merchant contact data leaves the system.

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, zero waste, and the core action and its effect are front-loaded ahead of the prerequisite details.

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?

For a five-parameter mutation with no annotations and no output schema, the description covers the essentials: what happens, what it costs, and what is required. Only minor gaps remain around response shape and confirmation behavior, which are less critical for a one-shot submission.

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%, so the baseline is 3. The description mentions the store URL and contact email but stays silent on the third required parameter (company), as well as platform and notes, adding no meaning beyond what the well-described schema already provides.

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?

"Submit a free ChargeGuard store audit" gives a specific verb plus resource and immediately says what the audit does (reviews payment setup and dispute risk) and what it produces (an emailed written report). It is clearly distinguishable from the read-only lookup siblings, though it does not name them 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 this is the tool to use when a merchant wants a proactive risk assessment, and "free" plus "requires store URL and contact email" sets a precondition. There is no explicit when-to-use/when-not statement and no guidance on when to prefer a reason-code lookup instead.

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