edubase_post_exam_branding

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

Annotations already declare readOnlyHint=false, idempotentHint=false and destructiveHint=false, so the safety profile is covered. The description adds genuinely useful context that the image can serve as a logo or cover, but says nothing about required permissions, what happens to existing branding on re-post, or the openWorldHint implication of accepting remote image URLs.

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 well-formed sentence with the action and the two payload concepts front-loaded. No filler, though the parenthetical could be tightened.

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 annotations and a fully described schema, most structured context exists. However, for a mutation tool with no output schema, the description omits whether the call replaces existing branding, whether the image source is fetched server-side, and how to obtain the filebin image identifier it references.

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%, so the schema already documents all four parameters, including enum values for type and color. The description only echoes the foreground/background semantics already present in the schema, 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?

The description gives a specific verb and resource ('Configure or update the branding of an exam') and clarifies the role of the image (logo vs. cover). It is clearly distinguishable in intent from edubase_get_exam_branding and edubase_delete_exam_branding, though it never names them explicitly.

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 when-to-use guidance, no mention of prerequisites (e.g., the exam must already exist), and no reference to alternatives such as deleting branding or uploading via edubase_filebin. The 'Configure or update' phrasing implies upsert behavior but leaves replace-vs-merge semantics unstated.

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