Change the theme

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

Annotations declare readOnlyHint=false and openWorldHint=false, and the description adds useful scope: the change applies to the WHOLE presentation and overwrites colors, fonts and background. That tells the agent existing manual styling is affected, which is real value beyond the annotations, though it doesn't say whether the change is undoable.

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 well-formed sentence with the scope ('whole presentation') and source ('catalog') front-loaded. Nothing wasted.

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 2-param, no-output-schema mutation tool this covers purpose, scope and theme source adequately. The remaining gap is that it never explicitly tells the agent to consult the `catalog` tool for valid theme identifiers, which matters given the undocumented `theme` parameter.

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?

Coverage is 50%: `path` is documented in the schema while `theme` is a bare string. The description partially compensates by saying the theme comes from `catalog`, giving semantic grounding to an otherwise unexplained parameter, but no format or validity detail is added.

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 ('Restyles') and resource ('the whole presentation'), and names the theme source ('from catalog'), which distinguishes it from siblings like edit_presentation or update_elements. It stops just short of explicitly routing the agent to the `catalog` tool.

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 reference to `catalog` implies where theme values come from, giving implied usage guidance, but there is no explicit when/when-not or statement of prerequisites (e.g., 'call catalog first to list valid themes'). A nearby sibling named `catalog` makes the connection guessable but not stated.

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