update_look_board_button_positions

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

With no annotations, the description carries the full behavioral burden and does very little. 'Single operation' mildly implies batch semantics, but nothing is said about atomicity/partial failure, whether buttons must already exist on a board, required permissions, or what happens to buttons omitted from the array.

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?

One short, front-loaded sentence with no filler; the operation and its scope come first. It is efficient, though it stops just short of the differentiation a second clause could have supplied.

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?

The only parameter is a positions array with no board or look identifier anywhere, and the description does not explain how the target look board is determined — implicit context that an agent cannot safely assume. For a mutation tool with no annotations and no output schema, that is a material gap.

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 100% and the nested buttonId/layoutX/layoutY fields are fully typed, so the schema does the explaining. The description only restates that multiple positions are updated at once and adds no coordinate-system, unit, or validation semantics beyond the schema; baseline 3 applies.

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 and resource (update button positions) plus scope (multiple buttons, single operation), which is more precise than a generic update. However, it never distinguishes itself from close siblings such as bulk_update_look_board_buttons or update_look_board_button, so an agent cannot tell when position updates should route here instead.

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 parenthetical '(useful for drag-and-drop)' gives an implied usage context, but there is no explicit when-to-use, when-not-to-use, or alternative-naming guidance. The agent must infer the boundary against the many sibling bulk/update button tools on its own.

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