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

The annotations already cover the safety profile (readOnlyHint, idempotentHint, non-destructive, openWorldHint=false), and the description adds genuinely new context beyond them: the response is links only, no PII is handled here, and legal disclosures remain in English even in Spanish mode. It doesn't say whether the links are static or session-specific, which would have made it a 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?

Three short sentences, front-loaded with what the tool returns and what it does not do. The final parenthetical about Spanish keywords is compact and earns its place, though the phrasing is slightly dense.

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 two-optional-param, enum-constrained, annotated tool with no output schema, the description covers the return type (links), the PII boundary, and language behaviour including the English-disclosure exception. Only the static-vs-personalized nature of the returned links 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?

Schema coverage is 100% with both params fully described and enum-constrained, so the baseline is 3. The description adds only marginal meaning — the Spanish trigger vocabulary "consulta, cita" — while the topic-to-page mapping is already implied by the schema enums.

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 uses a concrete verb and resource — it "Returns links to book time with CapCenter" — and enumerates the three offerings (loan consultation, real estate agent, insurance quote), distinguishing it from the quote/estimate calculators among its siblings. It does not explicitly name a sibling to route away from, so it stops short of a 5.

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 makes clear this is the booking path rather than an advice or quoting path, and adds a useful boundary: "Links only; personal details are entered by the person on capcenter.com," which tells the agent not to attempt collection or direct scheduling. No explicit when-not-to-use or named alternative tool is given.

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