Open in the DailyMeteo app

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds useful context about what the link exposes (map, chart, CSV export), but says nothing about whether the URL is absolute, how long it stays valid, or that the call itself fetches no weather data.

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?

A single front-loaded sentence with no filler. It is a noun phrase rather than a verb construction, which slightly undercuts immediacy, but nothing is wasted.

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 an output schema present, return values needn't be explained, and annotations cover the read-only nature. However, for a 6-parameter URL-builder, the description never clarifies the link's intended consumer (human browser vs. embedding) or the start/end/time_scale consistency rule, leaving real gaps.

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 67%, and the description only loosely maps to parameters via 'location, variable and period'. It adds no semantics for the undocumented enum values (tmean/tmax/tmin/prcp, day/mon/ann) or for how start/end must align with time_scale, leaving the schema to carry that weight.

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 names a specific resource (a link) and states exactly what it resolves to: location, variable and period on the DailyMeteo map with chart and CSV export. It implicitly distinguishes itself from download/query siblings like download_gridded_files and request_point_history, though it never names them or says 'returns a URL' outright.

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 explicit when-to-use guidance or routing against the many siblings (get_weather, request_point_history, download_gridded_files, find_location). An agent must infer that this is the 'give a human a shareable interactive view' option rather than a data-returning tool.

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