Get AllTrails trail weather

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

Annotations already declare readOnlyHint, idempotentHint and openWorldHint, so the safety profile is covered. The description adds nothing behavioral beyond that: no indication of whether the weather is current conditions or a forecast, what time horizon or units apply, or how fresh the data is. For a data-fetch tool with no output schema, this leaves a real gap.

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?

One sentence, front-loaded with the verb and resource, with zero filler. It is efficient, though arguably too terse to carry the missing behavioral detail.

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?

The tool is simple (one required parameter, no nesting) and annotations cover the safety profile, so the definition is minimally sufficient. However, with no output schema and no statement of what the weather overview contains (current vs. forecast, units, horizon), the agent cannot predict the response shape.

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 the single trailId parameter is fully documented in the schema with a numeric pattern. The description's phrase 'by its numeric trail id' merely echoes the schema, so baseline 3 is appropriate.

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 states a specific verb and resource ('Get the weather overview for an AllTrails trail') and pins the identifier format to a numeric trail id. It is clearly distinct from sibling readers like get_trail_reviews or get_trail_photos, though it never explicitly differentiates itself from them or from alltrails_get_trail.

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?

There is no guidance on when to call this versus alltrails_get_trail or the other trail sub-resource tools, and no prerequisites or exclusions are stated. The only usage signal an agent can infer is from the tool name itself.

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