provider_get_active_theme

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

Beyond the readOnly/idempotent annotations, the description discloses that the resource requires no authentication and that missing flavors silently fall back to the main flavor – both non-obvious behaviors an agent needs. It stops short of covering failure modes, but it clearly adds value over the structured hints.

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?

Front-loading is fine and the file-fetching instruction is actionable, but the description text is duplicated verbatim (the opening sentence and 'even if the theme does…' fragment repeat), and the raw HTTP path restates the annotation title. Duplication costs space without adding information.

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 carries the burden of explaining returns, and it does so by naming filesRoot and files[i] and the mandatory-resource guarantee. Only error or empty-organization behavior is left implicit, which the orgName parameter description partially covers.

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 coverage is 100%, so the parameters are already documented. The description still contributes meaning the schema lacks: the flavor fallback rule ('even if the theme does not explicitly define such flavor, the main flavor is used') and how the returned paths compose into URLs.

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 verb and resource ('Get a description of a theme to be applied') and immediately states what the response contains, which is more than a restated name. However, it never references the closely related siblings provider_get_active_theme_main_flavor or provider_get_theme_file/flavor_file, so the agent must infer the boundary from the names alone.

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?

Usage is only implied: the flavor-fallback rule and the instruction to build a URL from filesRoot + files[i] hint at the intended workflow, but the agent is not told when to pick this tool over provider_get_theme_file or provider_get_active_theme_main_flavor, nor when not to use it.

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