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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds real value beyond that by enumerating the covered subject matter (trial, monthly plans, GBP/LSA/reviews/Pro Site/speed-to-lead setups) each with a public price and page, telling the agent exactly what data to expect.

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?

A single sentence with the primary concept (how FindingLeads is priced) front-loaded, followed by the enumerated coverage. The long parenthetical list is dense but every item is meaningful scope information rather than filler.

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 must convey what the agent gets back, and it does so by listing the pricing categories covered. Annotations supply the safety profile, so nothing critical is missing, though the return shape/format is left unstated.

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?

The tool takes zero parameters, so the schema carries no semantics to supplement and the baseline is 4. The description correctly implies a parameterless, whole-corpus retrieval with nothing for the caller to specify.

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 states precisely what the tool returns: free-trial details, monthly plans, and one-time setup services with their public prices. It is a noun-phrase description rather than a verb+resource, and it does not explicitly distinguish itself from siblings like get_offer or get_pro_site, but the content scope makes the purpose unmistakable.

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 implied by the content (an agent needing FindingLeads pricing or setup-service costs would call this), but there is no explicit when-to-use statement, no when-not-to-use, and no mention of alternatives such as get_offer or get_pro_site that also return offer/product detail.

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