Export AllTrails trail GPX

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

Annotations already cover the safety profile (readOnlyHint, idempotentHint, openWorldHint). The description adds real behavioral context beyond them: the data is built from offline-detail route geometry, contains track points with per-point elevation, and returns raw XML rather than a JSON envelope. It stops short of noting failure modes (e.g., trails lacking route geometry) or payload size.

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?

Two tight sentences with no filler. Purpose and format come first, the provenance detail second, and the return-value note last — a well front-loaded structure for the reader.

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?

With no output schema, the description correctly carries the burden of describing the return value (raw GPX XML, track points with elevation) and its intended destination. It is nearly complete; only edge cases like trails without geometry or output size limits are unaddressed.

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% and there is a single required parameter (trailId, numeric string). The description adds no syntax or format detail beyond what the schema already documents, so the baseline 3 applies.

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?

States a specific verb (export), resource (AllTrails trail's route), and output format (GPX 1.1 document with per-point elevation). This distinguishes it cleanly from sibling alltrails_get_trail, which serves structured trail data; the format-specific framing makes the boundary obvious.

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 phrase 'suitable for saving to a .gpx file or importing into navigation apps' implies downstream usage, but there is no explicit when-to-use-this-vs-alltrails_get_trail guidance or exclusion criteria. Usage is implied rather than stated.

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