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chrischall

OurFamilyWizard MCP

by chrischall

alltrails_get_trail

Read-only

Get complete trail details from AllTrails by numeric ID—name, location, length, elevation gain, difficulty, rating, route type, and full route geometry on request.

Instructions

Get details for a single AllTrails trail by its numeric trail id. Returns name, location, length, elevation gain, difficulty, rating, route type, and (at higher detail levels) route geometry. Returns a slim projection by default (name, overview, length in m+mi, elevation gain, difficulty, rating, route type, location); pass view:"full" for the whole record and geometry.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
viewNoResponse shape: "compact" (default) drops fields the response already carries elsewhere; "full" returns every field this server understands. compact returns { name, overview, length in m+mi, elevation gain in m+ft, difficulty, rating, route type, location }, unwrapped from the one-element envelope; "full" returns the whole record, route geometry included (which also needs detail:"offline" to be fetched at all).
detailNoDetail level. "medium" (default) is a good overview; "offline" includes full route geometry.
trailIdYesNumeric AllTrails trail id (e.g. "10236086")

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv3.0.0
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
  2. Changed2 schema fields changedv2.3.1
    • removedInput schema / properties / compact
      Removed value: -{
      -  "description": "Return a slim projection instead of the full record (default false)",
      -  "type": "boolean"
      -}
    • 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 returns { name, overview, length in m+mi, elevation gain in m+ft, difficulty, rating, route type, location }, unwrapped from the one-element envelope; \"full\" returns the whole record, route geometry included (which also needs detail:\"offline\" to be fetched at all).",
      +  "enum": [
      +    "compact",
      +    "full"
      +  ],
      +  "type": "string"
      +}
  3. First observedv1.0.0

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already mark readOnlyHint=true, and the description adds meaningful behavior beyond that: it explains default slim projection, how to request full records, and that geometry depends on higher detail levels. This gives an agent a clear picture of what the tool returns without over-explaining.

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?

Two sentences, front-loaded with the core purpose, then concise detail about default vs full output. Every sentence earns its place; no filler or redundant restatement.

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

Completeness4/5

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

With no output schema, the description enumerates the main return fields and distinguishes compact vs full responses. It is complete enough for a simple read-by-id tool, though the relationship between view:full and detail:offline for geometry is slightly clearer in the schema than in the description.

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%, so the schema already documents all three parameters and their enums. The description restates the default projection and the role of view/full, but does not add substantial semantic value beyond what the schema already provides.

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?

States a specific verb and resource: get details for a single AllTrails trail by numeric trail id. Clearly distinguishes this from siblings like alltrails_search and alltrails_get_trail_reviews by emphasizing a single trail identified by id.

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 description makes clear this is the right tool when you already have a numeric trail id and want trail details. It does not explicitly name alternatives or say when not to use it, but the by-id framing provides enough context to route an agent correctly.

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