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keynote_set_element_size

Resize a text, image, or shape element on a Keynote slide by setting its width and height in points.

Instructions

Resize an element on the slide. Dimensions are in points.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
doc_indexNoDocument index (0-based). Defaults to 0 (frontmost).
slide_indexYesSlide index (0-based).
element_typeYesElement collection to target.
element_indexYesElement index within its collection (0-based).
widthYesWidth in points.
heightYesHeight in points.
Behavior2/5

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

With no annotations, the description carries the full burden of behavioral disclosure. It only states that dimensions are in points but does not disclose whether the resize is relative or absolute, whether constraints apply, or what side effects (e.g., overlapping) may occur. This is minimal for a mutation operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is exceptionally concise at two sentences, front-loading the purpose and including only essential information. No unnecessary words or repetition.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite low complexity, the description lacks information about return values (e.g., success indicator or new size) and does not mention error conditions or constraints (e.g., size limits). For a mutation tool without output schema or annotations, this is insufficient.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds no additional meaning beyond the schema's parameter descriptions, except possibly reinforcing the unit (points) which is already implied by the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Resize') and the target resource ('an element on the slide'), and distinguishes this tool from siblings like keyboard_set_element_position or keynote_set_element_fill_color by specifying 'size'. The unit clarification ('Dimensions are in points') adds precision.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives (e.g., when to set position vs size). There is no mention of prerequisites, order of operations, or when not to use this tool.

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

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