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

The annotations (readOnlyHint=false, destructiveHint=false, openWorldHint=true) already tell the agent this is a non-read, non-destructive, externally-dependent operation. The description adds meaningful context beyond that: the content is generated by an AI assistant and is styled after neighboring slides, which explains why output is non-deterministic and why placement context matters. It stops short of disclosing generation latency, cost implications, or what happens if the AI fails.

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 sentence with no filler, front-loaded with the core action (AI writes a new slide). The insertion-location clause trails at the end, which is a reasonable ordering, though the sentence is dense with three separate ideas (generation source, styling, placement).

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?

With three fully documented required parameters and no nesting, the tool is simple enough that the description covers what an agent needs to construct a call. There is no output schema, so the description does not say what is returned (e.g., the new slide's identifier), which is the main remaining gap; it also offers nothing on handling generation failure.

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 all three parameters (id, after, instruction) are already documented in the input schema, including the -1 sentinel for insertion at the beginning. The description restates the 'after' insertion semantics and implies that the instruction drives style/content generation, but adds no format, length, or content-detail guidance beyond the schema. Baseline 3 is appropriate here.

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 gives a specific verb-plus-resource pair — have the tool's AI assistant write a new slide and insert it after rank 'after' — and adds the stylistic constraint of matching neighboring slides. That distinguishes it implicitly from insert_slide (which inserts supplied content) and rewrite_slide (which modifies an existing one), but no sibling is named, so differentiation requires the agent to already know what those tools do.

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 AI-generation angle implies when this tool is appropriate over insert_slide, since it is the one that authors content from an instruction. However, there is no explicit when-to-use/when-not statement, no mention of alternatives by name, and no guidance on prerequisites such as whether the presentation must already exist or have neighboring slides for the style-matching to work.

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