cf_category_hierarchyGet the full category tree with taxonomy path values. Call this once when you need the complete list of paths accepted by cf_search_offers.categories.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
| Name | Required | Description | Default |
|---|---|---|---|
| categories | Yes |
Changes observed during successful MCP inspections. Dates show when Glama detected each change.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so safety is covered. The description adds valuable context about the output (full category tree with taxonomy path values) and the recommendation to call it once, which helps the agent understand the tool's behavior beyond the annotations.
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, each earning its place. The first states what the tool does, the second explains when to use it. No fluff or redundant 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?
Given the tool's simplicity (zero params, output schema present), the description is complete. It explains the return value (full category tree with taxonomy paths) and the specific use case (feeding cf_search_offers.categories), which covers all necessary context.
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?
The tool has zero parameters and the schema coverage is 100%, so the schema fully defines the input. With 0 params, the baseline is 4, and the description adds no parameter confusion.
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 uses a specific verb ('Get') and resource ('full category tree with taxonomy path values'), and it clearly distinguishes itself from sibling tools by stating it provides the complete list of paths accepted by cf_search_offers.categories. This is a precise and non-tautological statement of purpose.
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 explicitly says 'Call this once when you need the complete list of paths accepted by cf_search_offers.categories,' giving a clear context and trigger. It does not mention alternatives or exclusions, but the stated use case is sufficient for the intended scenario.
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.
Several tools have overlapping purposes, particularly cf_category_hierarchy vs cf_list_categories (both provide category taxonomy paths) and cf_search_offers vs cf_list_offers (both return offers). Descriptions help, but the boundaries between category-related tools and offer listing/search could confuse an agent.
All tool names follow a consistent cf_ verb_noun snake_case pattern (e.g., cf_add_wish, cf_list_retailers, cf_search_offers). The convention is uniform and predictable, making it easy to infer tool behavior from the name.
With 22 tools, the server covers a broad domain but is slightly heavy. The count is reasonable for a price-comparison service with search, product, price, retailer, user, and comment functionality, though it exceeds the typical ideal range.
The toolset provides solid coverage of the price-comparison domain: search, categories, offers, products, retailers, price history/summary, deal analysis, wishlist, comments/reviews, and user search history. Minor gaps exist (e.g., no product-specific reviews, no comment edit/delete), but core workflows are fully supported.