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

Annotations already cover the safety profile (readOnlyHint=false, idempotent=true, destructiveHint=false), so the bar is lower. The description adds real context beyond them: the notes are visible to those who may edit the presentation, they round-trip through PowerPoint import/export, and an empty string clears them.

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 purpose is front-loaded, but the middle of the description drifts into PowerPoint round-trip and viewer-visibility detail, and the final clause ('"" removes the notes.') is awkwardly punctuated and reads like an afterthought.

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?

An output schema exists so return values need not be explained. The description covers the important semantics (what notes are, how they persist through export/import, how to clear them) for a 3-parameter write tool, with only permission/prerequisite detail left implicit.

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%, so baseline would be 3. The description adds meaning the schema does not: passing an empty string deletes the notes, which is the key behavioral contract for the 'notes' parameter.

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 title and description make clear this writes the speaker notes of a slide, and the opening clause defines the resource concretely ('plain text that viewers do not see on the slide'). It is distinguishable from update_slide or add_comment, though the framing is conceptual rather than a crisp verb+resource statement.

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?

Usage is only implied: it says an empty string removes the notes, which is a useful operational nuance, but there is no explicit when-to-use guidance or routing versus siblings like update_slide or edit_slides.

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