pad_up

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

With no annotations, the description must carry the full behavioral burden. It says what is released but not whether the operation is idempotent, what happens if the button is not currently held, or whether the release is immediate, leaving meaningful behavioral gaps for an input-state mutation.

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?

A single front-loaded sentence with no wasted words. It gets directly to the action and scope.

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 one-parameter input tool with no output schema, the description is minimally adequate and the enum fills in accepted values. However, it omits when-to-use guidance and failure semantics that would matter 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%, but the single parameter has a self-documenting enum of 19 button and direction values. The description adds that the parameter covers both buttons and D-pad directions, though it does not explain value meanings beyond the enum.

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 states a specific verb and resource: release a held gamepad button or D-pad direction. This clearly contrasts with sibling actions like pad_down and pad_press, though it does not explicitly name those siblings.

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 word 'held' implies the button should have been pressed via pad_down or pad_press first, but the description never explicitly states this prerequisite or warns against calling it on an unheld button. Usage is inferable rather than specified.

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