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

Beyond the annotations, it discloses that the message cannot be recalled once sent, that explicit consent (user_consent=true) is mandatory, and that usage is limited to a few requests per day. These are exactly the behavioral traits (irreversibility, rate limit, auth/consent) the annotations alone do not convey, and they are consistent with destructiveHint=true.

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?

Front-loaded with the core action and the kind taxonomy, then the hard constraints. The parenthetical glosses are dense but each adds real meaning; a slight trimming of the kind explanations would improve it 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?

With an output schema present, return values need not be described, and the annotations carry safety signals. The description supplies the consent, rate-limit, and irreversibility context an agent needs, but the role of configuration and idempotency_key in a submission flow is left implicit.

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 13%, so the description has to compensate, and it does so for the most consequential fields: it defines all three 'kind' enum values and ties user_consent to the email-sharing agreement. It leaves lang, country, idempotency_key, and the contact sub-fields unexplained, so a residual gap remains.

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?

States a specific verb and resource ('sends the user's request to the B.R.M team') and enumerates the three request kinds, so the agent can tell it apart from create_order, quote_configuration, and validate_configuration. The explicit 'Never an order, never a payment' boundary further sharpens the distinction.

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?

Explains when each kind applies ('quote' = personalised quote by email, 'special_request' = anything the configurator does not offer) and states the consent precondition and the rate limit. It stops short of naming which sibling tool to use first (e.g. describe_model/validate_configuration before submitting), so it is clear but not fully routing.

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