Quote account VPN

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

Richly exceeds the annotations: it states no provisioning or charge occurs before payment, that prepare_after_payment=true, the required networking:read/manage scopes and full-API/spend-cap prerequisites, backend ownership/2FA enforcement, and the exact polling contract (in_progress flag, reason_code/reason_kind semantics, next_check_seconds). It also covers idempotency-key reuse and 'payment acceptance is not resource readiness'.

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?

Purpose is front-loaded, but the remainder is a dense run-on mixing permissions, polling, retry, pricing and payment concerns with no formatting or paragraph breaks. Most sentences earn their place, yet the lack of structure makes it hard to parse.

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 output schema and a complex lifecycle, the description takes on the burden and largely succeeds, documenting the pending-operation model, polling, failure detection and payment-vs-readiness distinction. Minor gaps remain around what the quote response carries beyond gross_amount in EUR.

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 67% and tier has no schema description, but the text adds real meaning: network must be an 'owned attachment network when required', tier must be a 'supported live catalog tier', and the same Idempotency-Key spans quote and confirmation. These enrich the schema rather than repeat it.

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 first sentence states a specific verb and resource ('Create an account VPN quote') plus the triggering condition ('when vpn_account_order is advertised'), which distinguishes it from renewal quotes like quote_vpn_period_renewal. It never explicitly names a sibling, so an agent must infer the boundary, but the scope is clear.

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 gives a clear precondition for use ('when vpn_account_order is advertised') and a workflow ('Read current capabilities and owned resource state first; obtain approval for the exact change'). No alternatives or when-not-to-use are named, so it stops short of the top band.

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