move_items_to_specific_grid_locations

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

With no annotations provided, the description carries full burden. It discloses validation behavior ('Ensures equal number of items and positions') and return information ('Success status and confirmation of final positions'), which is helpful. However, it doesn't mention potential side effects like overwriting existing items at coordinates, permission requirements, or error conditions for invalid coordinates.

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 well-structured with clear sections (purpose, usage, coordinates, validation, returns) in just 4 sentences. Every sentence adds value with no redundant information, making it easy to scan and understand quickly.

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 3 parameters with 0% schema coverage and no annotations, the description does a good job explaining core functionality. The presence of an output schema means it doesn't need to detail return values. However, for a mutation tool with precise positioning, it could better address potential risks like coordinate conflicts or container constraints.

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 explains the purpose of coordinates ('Each item gets an exact (row, column) position') and validation logic, adding meaningful context beyond the bare schema. However, it doesn't clarify the relationship between item_ids and grid_locations arrays or explain what target_container_id represents.

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 clearly states the tool's purpose with specific verb ('places items') and resource ('at specific coordinates within a grid container'). It distinguishes from sibling tools like 'move_items_to_grid_container_by_column' and 'move_items_to_grid_container_by_row' by emphasizing precise positioning rather than bulk movement by row/column.

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 'Usage' line provides clear context ('Precise positioning for experimental layouts or protocols'), indicating when this tool is appropriate. However, it doesn't explicitly state when NOT to use it or name specific alternatives among the sibling tools, though the distinction from row/column movement tools is implied.

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