save_powergrade

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

With no annotations provided, the description carries full behavioral disclosure burden. It only states the action without revealing what happens to existing powergrades, whether overwriting occurs, or any other side effects. The phrase 'into the current album' is vague without defining 'current album'.

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 a single concise sentence, but it is vague and lacks necessary details. It earns its place by being short, but could be more informative without adding length.

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 has one optional parameter and an output schema, the description omits crucial context such as prerequisites (e.g., being on Color page, having a clip and album) and what the output signifies. This is insufficient for reliable agent invocation.

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 input schema has one parameter 'label' with 0% description coverage, and the description does not mention it at all. The agent receives no explanation that the label is optional for naming the powergrade, forcing reliance on the schema alone.

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 uses the verb 'grab a still' which clearly indicates capturing a still image from the current Color-page clip and saving it to the current album. It distinguishes from siblings like 'capture_current_frame' by naming the tool 'save_powergrade', implying storage of a grade preset, but the term 'still' may cause slight ambiguity.

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 no guidance on when to use this tool versus alternatives (e.g., 'register_powergrade' or 'capture_current_frame'). It does not mention prerequisites like being on the Color page or having an active album, nor does it exclude use cases.

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