Create a direct checkout URL for one or more store products (Wix Stores). The user clicks the URL to complete payment on the site — no login required on the AI agent side.
| Name | Required | Description | Default |
|---|---|---|---|
| items | Yes | Products to add to cart. |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden and does well by clarifying that the AI agent is not authenticated and payment happens after the user clicks the URL. This disambiguates the tool's side effects (it doesn't complete the purchase), though it doesn't mention potential side effects like cart state.
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?
The description is two sentences, with the first stating the core purpose and the second providing essential usage/security context. Every word earns its place, and the information is front-loaded.
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 simple tool with one parameter and no output schema, the description is sufficient: it implies the return value (the checkout URL) and explains the payment flow. It could be more explicit about the return format, but the purpose statement already indicates what the output will be.
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 100%, so the baseline is 3. The description adds no extra parameter-specific details beyond saying 'one or more store products', which the schema already conveys with the items array. No compensation needed.
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 identifies the action as 'Create a direct checkout URL' for 'one or more store products (Wix Stores)', which is specific and distinct from siblings like create_booking or list_products. The verb+resource+scope structure makes it immediately clear what the tool does.
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?
The description provides clear context: it creates a URL that the user clicks to complete payment, and no login is required on the AI agent side. This implies when to use it (for store product purchases), though it does not explicitly name alternatives or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
Each tool targets a distinct resource or action: booking services, restaurant reservations, event tickets, and RSVPs are all clearly separated by domain and described with explicit use cases. Similarly, search_places, search_dishes, and get_restaurant_menus cover different granularities of place/menu lookup. The descriptions include guidance on when to use each tool, eliminating ambiguity.
All tool names follow a consistent verb_noun pattern in snake_case (e.g., list_*, get_*, create_*, search_*). While a few verbs like 'request' and 'rsvp' differ, they accurately reflect the action's semantics and do not break the overall consistency. The naming makes the tool's purpose predictable from its name.
At 28 tools, this is a large set, but it serves a broad multi-domain directory (places, events, movies, store, bookings, content, etc.). Each tool covers a distinct feature or resource, and there are no redundant tools. The count is at the upper boundary but appropriate for the server's comprehensive scope.
The tool surface covers the full lifecycle for the directory's main domains: search/discover places, view details, menus, reviews, book services, reserve/RSVP events, browse movies/showtimes, list products, access content (blog, guides, FAQs), submit forms, and check loyalty. There are no obvious dead ends or missing operations for the stated purpose. The inclusion of pairing tools like list_forms→submit_form and get_availability→create_booking shows deliberate workflow completeness.