add_frame

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

With no annotations, the description bears the full burden of behavioral disclosure. It only indicates a mutation ('Add') without explaining whether the frame is appended, inserted at the current position, created blank, or loaded from the filename parameter. This leaves important side effects undisclosed.

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 no wasted words and the core action is front-loaded. However, it is so terse that it sacrifices necessary semantic content, making it slightly under-specified for the conciseness criterion.

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?

For a simple one-parameter tool, the description still omits critical context: what filename means, what type of frame is added, and how the frame is placed in the animation timeline. With no output schema and no annotations, the agent lacks enough information to invoke the tool correctly.

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 0%, so the description must clarify the 'filename' parameter, but it does not. The name suggests a file, yet it is unclear whether filename is the image source, an output name, or something else. The parameter's meaning is entirely ambiguous.

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 states the exact action ('Add') and resource ('one animation frame'), and the singular 'one' weakly differentiates it from the sibling 'add_frames'. It lacks detail about the target animation or how the new frame relates to existing frames, so it is clear but not fully distinctive.

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?

No usage guidance is provided. The description does not specify when to use this tool over alternatives such as add_frames, set_frame, copy_frame, or delete_frame, and gives no context about preconditions or typical workflow placement.

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