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 behavioral fact that submitting triggers a notification to the firm and yields a booking link, plus a confidentiality caution, but says nothing about follow-up timing, whether a record is persisted, or what happens on invalid input.

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 short sentences, zero waste, with the scope condition front-loaded before the behavioral outcome and the input caution. Nothing could be removed without losing information.

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 3-required-parameter write-side tool with no annotations and no output schema, the description covers the trigger condition, the outcome, and the confidentiality constraint. It leaves gaps around what the caller receives back and what the firm does with the request, which matters because no structured field supplies that context.

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 description coverage is only 33% (only 'topic' is described), so some compensation is required. The description reinforces 'topic' as a one-line, non-confidential input and adds a meaningful constraint, but adds nothing about 'name' or 'email' beyond what their field names and formats imply.

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 a concrete action chain: it returns a booking link and notifies the firm that a person wants to talk. The scope clause 'for anything outside the listed services' implicitly separates it from list_services and the submit_*/open_matter siblings, though no sibling is named 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?

'For anything outside the listed services' gives a clear triggering condition, and 'Send a one-line topic only, no confidential facts' sets a usage constraint on the input. It stops short of naming which sibling to use instead when the request falls inside the listed services.

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