geometry_nodes-create_modifier

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only mentions the use of Blender's default node group but does not disclose side effects, error behavior, prerequisites, or how it interacts with existing modifiers. This is a significant gap for a mutation tool.

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 that immediately states the tool's purpose. It contains no fluff or redundancy, making it highly efficient.

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 tool with two parameters and no output schema, the description covers the core action but lacks context about prerequisites, error conditions, or relationship to existing modifiers. It is minimally viable but leaves gaps in operational understanding.

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 adds no parameter details. It does not explain the meaning or behavior of 'name' or 'object' beyond what their titles suggest. The agent must rely solely on property names and schema titles, with no elaboration from the description.

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 a specific verb and resource ('Create a Geometry Nodes modifier') and distinguishes it from generic modifier tools like modifiers-add and node tools like geometry_nodes-add_node. It clearly states what the tool does with a specific scope.

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 implies usage for adding a Geometry Nodes modifier with the default node group, but provides no explicit when-to-use vs alternatives or exclusions. There is no mention of alternatives or conditions for use, making it only implicitly guided.

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