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viator-mcp

by chrischall
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

vt_get_attraction

Read-only

Retrieve a Viator attraction's details by ID, including name, destination, opening hours, review summary, product codes, and URL.

Instructions

Get details for one Viator attraction by id — name, destination, opening hours, review summary, mapped product codes, and the attraction URL.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
viewNoResponse shape: "compact" (default) drops fields the response already carries elsewhere; "full" returns every field this server understands. compact strips image/avatar URLs from the response; "full" returns Viator's payload untouched. No field projection on this tool — every other field comes back as Viator sent it.
attraction_idYesViator attraction id
campaign_valueNoAffiliate campaign tracking id — appended to the productUrl/attractionUrl/destinationUrl Viator returns

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv2.0.0
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
  2. Changed1 schema field changedv1.2.1
    • addedInput schema / properties / view
      Added value: +{
+  "description": "Response shape: \"compact\" (default) drops fields the response already carries elsewhere; \"full\" returns every field this server understands. compact strips image/avatar URLs from the response; \"full\" returns Viator's payload untouched. No field projection on this tool — every other field comes back as Viator sent it.",
+  "enum": [
+    "compact",
+    "full"
+  ],
+  "type": "string"
+}
  3. First observedv1.0.5

TDQS

A4.1/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true, so the read-only nature is covered. The description adds the list of returned fields, which is helpful behavioral context, but it does not disclose any additional behavior such as rate limits, error handling, or response format beyond what annotations already imply. With annotations covering the safety profile, this is adequate but not enriched.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single, tightly written sentence that front-loads the core purpose and lists the key return fields without redundancy. Every word earns its place; there is no fluff or unnecessary detail.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple getter with one required parameter and read-only annotations, the description is complete. It lists the return fields, the schema documents all parameters, and the openWorldHint annotation covers unexpected fields. Nothing an agent needs to call it correctly is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% — all three parameters (attraction_id, view, campaign_value) have descriptions in the schema. The tool description itself does not add any parameter-specific meaning beyond what the schema provides, so the baseline of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Get' and the resource 'details for one Viator attraction by id', and enumerates the specific fields returned (name, destination, opening hours, review summary, mapped product codes, and the attraction URL). It distinguishes itself from sibling search tools by emphasizing 'by id', making it unmistakably a single-resource getter.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The phrase 'by id' strongly implies the tool is used when the attraction id is already known, as opposed to search tools like vt_search_attractions. However, it does not explicitly state when not to use it or name alternatives, but the context is clear enough for an agent to infer the appropriate use case.

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

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