toggle_material_favorite

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

With no annotations, the description must carry the behavioral burden. It discloses the max-5-favorites constraint, which is useful, but does not mention what happens when that limit is reached, whether the material must exist, or any side effects beyond toggling. This is adequate but lacks depth.

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?

The description is extremely concise, with the main action and constraint in one sentence, followed by a standard Args section. No wasted words, and it is front-loaded with the primary purpose.

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?

Given the tool's simplicity (one parameter, explicit output schema), the description is mostly complete. It conveys the core action and the critical max-5 constraint. It could mention behavior on limit violations or prerequisites, but for a toggle operation this is sufficient.

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?

The schema already defines material_id as an integer, and the description repeats it as 'The ID of the material blueprint.' This adds no new semantic information beyond a slightly more human-readable phrasing, so it meets the baseline but does not enhance understanding.

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 clearly states the action ('Toggle the favorite status') and the specific resource ('a material blueprint'), along with a notable constraint ('max 5 favorites'). This distinguishes it from sibling tools like list_materials or create_material, which have different purposes.

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 description provides clear context that this tool is for toggling a favorite status, which is an action without a sibling alternative. However, it does not explicitly mention when to use it versus other material-related tools or any prerequisites, falling short of an explicit exclusion or alternative.

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