Retrieve full product detail from the KaliCart Global federated index by p2209_id. Returns price, availability, attributes, variants, and a direct storefront URL for checkout handoff. Obtain p2209_id from global_search results.
| Name | Required | Description | Default |
|---|---|---|---|
| p2209_id | Yes | KaliCart product ID (e.g. prod_duinshop-it_432395) |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and openWorldHint, so the agent knows this is a safe, read-only operation. The description adds context about the return payload (price, availability, attributes, variants, direct storefront URL) but does not disclose edge-case behavior (e.g., not-found errors, federation latency). This is acceptable given the annotation coverage.
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, front-loaded with the primary purpose, and every clause earns its place. It avoids unnecessary details and is immediately scannable.
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 one-parameter, read-only tool with no output schema, the description covers the essential context: what the tool returns, what the ID is, and where to obtain it. It lacks explicit error-handling details, but annotations and the simple contract make this sufficient.
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%: the single parameter p2209_id has a description and example. The tool description adds value by explaining that this ID comes from global_search and is the lookup key, which the schema alone does not explicitly state. This enriches the parameter's meaning beyond the schema.
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 clearly states the action ('Retrieve full product detail') and the specific resource ('KaliCart Global federated index by p2209_id'). It distinguishes itself from sibling tools like global_search (which provides IDs but not full details) and lookup_merchant (which targets merchants rather than products).
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 a clear usage context: 'Obtain p2209_id from global_search results.' This implies a workflow (search first, then fetch details) and differentiates from the search tool. However, it does not explicitly list when not to use this tool or mention alternative tools for product-related queries.
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 has a clear, distinct purpose: product detail retrieval, global search, category listing, merchant listing, and merchant ARC verification. No two tools overlap in function.
Most tools follow a verb_noun pattern (get_product, list_categories, list_merchants, lookup_merchant), but 'global_search' deviates from that pattern by leading with an adjective rather than a verb. Scores are minor and readability remains high.
With 5 tools, the server is well-scoped for a federated commerce search catalog. Each tool earns its place without redundancy or bloat.
The surface covers the essential workflows: searching for products, retrieving product details, discovering categories and merchants, and verifying a merchant's ARC compliance. No obvious gaps for the stated purpose.