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

Annotations already declare readOnlyHint, idempotentHint, and no destructive action, so the safety is clear. The description adds useful context: no account needed, public data, and the inclusion of score/category. It does not mention limits or default behavior beyond what schema covers, but that is minor.

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?

The description is concise and informative, with the key purpose and usage carved into two sentences. It is front-loaded with the core idea and includes practical guidance without 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?

For a simple, read-only list tool with no output schema, the description covers the essentials: what it returns, the filter and sort options, and the lack of account requirement. It could mention default sorting behavior (newest), but the schema covers default for sort. Adequate.

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 enums and descriptions for sort, limit, and category are explicit. The description adds a hint about sorting for strongest and category filtering, reinforcing but not significantly adding beyond the schema.

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 clearly states the tool lists newest business ideas from public demand with score and category, which is specific and distinct from siblings like get_idea (single idea), search_ideas (search), and list_categories (categories). It includes scope (public, no account) and key attributes.

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?

The description states that no account is needed, implies a read-only listing context, and suggests filtering by category and sorting by score for strongest. It does not explicitly contrast with siblings, but the purpose and filters are clear enough for selection.

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