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

Annotations already declare readOnly, idempotent, openWorld and non-destructive, so the safety profile is covered. The description adds genuine value beyond them by disclosing the return content (since no output schema exists) and noting that recording interest in a planned feature requires a different tool, i.e. this call has no write side effect. It does not mention pagination or rate limits, so it is 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?

Content is front-loaded with the return payload, and every sentence carries meaning. The parenthetical example list (sign-in, credit, API keys, tender alerts, data packages) is slightly dense but illustrates the `planned` field, so it earns its place; overall efficient with minor verbosity.

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 parameters and no output schema, the description carries the return-value burden itself and does so by enumerating the catalog contents, which is enough for an agent to call and interpret it. It stops short of describing structure/nesting of the `planned` entries, but is largely complete for a simple no-arg catalog.

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 and the description explicitly confirms 'No parameters', which is the baseline-4 case for a no-arg tool. Nothing further 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 names a specific resource and enumerates exactly what is returned: products, user wishes mapped to matching tools, documentation URLs, and the `planned` upcoming-feature list. This is a catalog/discovery tool that is clearly distinct from its siblings (it is the only 'what does Overfit offer' tool), and it even clarifies the boundary with interesse_melden. An agent can identify the tool's purpose without opening anything else.

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?

It states explicit trigger contexts: 'Suited to questions what Overfit offers, what is planned, or where the documentation is,' and it points to the alternative (interesse_melden) for recording interest in a planned feature. That covers when-to-use and one alternative, but there is no explicit when-not guidance, so it falls short of a 5.

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