create_cop_node

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

With no annotations, the description bears full responsibility for behavioral disclosure. It implies a mutation (creation) but provides no details about side effects, required permissions, node placement, or return behavior. This is minimally transparent, similar to 'Update' without elaboration.

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, using a single short sentence. However, this brevity borders on under-specification rather than efficient economy, as it provides no additional value beyond the tool name. It is not verbose, but it also does not contain enough substance to earn a higher score.

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 no annotations, no output schema, and 0% parameter coverage, the description is incomplete. It fails to explain the required parameters, valid node types, or the effect of creating a COP node in a scene. Sibling tools offer some context but the description itself is inadequate for reliable 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?

Schema description coverage is 0%, and the description mentions none of the three parameters (name, node_type, parent_path). The description adds no meaning to the parameters, leaving users without any hint about what values are expected (e.g., valid node types, path format). The description completely fails to compensate for the schema's lack of descriptions.

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 'Create a COP node' uses a specific verb and resource, clearly indicating the tool creates a compositing (COP) node. It distinguishes from sibling tools like create_chop_node and create_lop_node by explicitly naming 'COP'. However, it is a brief restatement of the tool name, lacking any additional context about what a COP node is or its role.

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 guidance on when to use this tool versus alternatives such as create_node or create_render_node. The description only states the action without context, prerequisites, or exclusions. Users are left to infer that this is for creating COP nodes specifically.

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