Cross-Platform PowerPoint MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool opens a presentation and returns a dictionary with ID and metadata, but lacks critical details: whether this requires specific permissions, if it modifies the file, error handling for invalid paths, or what happens if PowerPoint isn't running. For a file operation tool with zero annotation coverage, this leaves significant gaps in understanding its behavior.

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 description is appropriately sized and front-loaded, with the core purpose in the first sentence and parameter/return details in a structured format. Every sentence adds value: the opening statement defines the action, and the Args/Returns sections provide essential usage information without redundancy. Minor improvements could include integrating the structure more seamlessly.

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?

Given the tool's moderate complexity (file opening with one parameter) and the presence of an output schema (which covers return values), the description is adequate but incomplete. It explains the parameter and return type at a high level, but lacks behavioral context (e.g., error cases, side effects) and usage guidelines. With no annotations, it should do more to compensate for these gaps.

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?

The description adds meaningful context beyond the input schema, which has 0% description coverage. It specifies that 'path' is a 'Full path to the PowerPoint file (.pptx, .ppt)', clarifying file types and format expectations. This compensates well for the schema's lack of descriptions, though it doesn't detail path syntax (e.g., absolute vs. relative) or validation rules.

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 clearly states the action ('Open') and resource ('PowerPoint presentation from the specified path'), making the purpose immediately understandable. It distinguishes from siblings like 'create_presentation' (new file) and 'get_presentations' (list existing), though it doesn't explicitly mention these distinctions. The description avoids tautology by providing specific details beyond the tool name.

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 description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., whether PowerPoint must be initialized first), when not to use it (e.g., for non-PowerPoint files), or clarify its role relative to siblings like 'get_presentations' (which might list presentations without opening them). Usage is implied but not explicitly defined.

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