create_paypal_order

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It implies a mutation via 'Create' but says nothing about required auth, idempotency, whether a redirect/approval URL is returned, or what happens to the order afterward — critical for a payment-initiation tool.

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 front-loaded sentence with no filler; the constraint trails the verb+resource in a sensible order. It is efficient, though its brevity borders on under-specification for a payment tool.

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 5-parameter mutation tool with no annotations and no output schema, one sentence is far from enough. An agent cannot tell what the call returns, how to select it over sibling payment creators, or how the undocumented parameters behave.

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?

With only 40% schema description coverage across 5 parameters, the description needed to compensate and does not. It adds no meaning for email, currency, or promo_code, and nothing about the syntax or constraints of token/amount beyond what the schema already states.

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 names a specific verb and resource ('Create a PayPal order') and adds a scope qualifier ('for international payers'), which lets an agent tell it apart from the sibling create_stripe_session or create_mobile_money_payment by payment method. However, the 'international payers' qualifier is unexplained and 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?

There is no when-to-use guidance and no routing against the many alternatives (create_stripe_session, create_checkout_session, create_mobile_money_payment). 'For international payers' hints at a selection condition but never states what makes PayPal the right choice over a generic checkout session.

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