generate_grid

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

With no annotations, the description carries the full burden. It does disclose the two behavioral branches (clone itemNodeId when supplied, otherwise create rectangles of itemWidth x itemHeight), which is genuinely useful. However it says nothing about permissions, whether existing children are affected, or what the call returns, leaving meaningful behavioral gaps for a 9-param 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?

Three short sentences, zero filler, and the core behavior is front-loaded. The {i} naming convention is a well-placed detail that earns its sentence.

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 9-parameter tool with no annotations and no output schema, the description covers the essential generation logic but leaves notable holes: spacing semantics, defaults for rows/columns, return value, and the fact that parentNodeId is listed as optional despite the description saying items go 'inside a parent'. The description is serviceable but not complete.

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 compensate. It usefully explains the non-obvious parameters (itemNodeId cloning, itemWidth/itemHeight rectangle sizing, and the {i} placeholder in name), but says nothing about rows, columns, spacingX, or spacingY, and never clarifies the role or requiredness of parentNodeId.

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?

States a specific verb ('Generate') and resource ('a grid of items inside a parent'), which is a distinct batch-creation operation not covered by siblings like create_rectangle or clone_node_into_parent. It does not name any sibling for differentiation, but the purpose is unambiguous.

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?

Usage is only implied: an agent can infer it is for producing repeated grid content in one call, but there is no explicit when-to-use, when-not-to-use, or routing against alternatives such as create_rectangle plus clone_node_into_parent. Adequate but with a clear gap.

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