init_presentation

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 mentions 'Initialize' which implies a creation/mutation operation, but doesn't specify permissions needed, whether it overwrites existing directories, or any side effects like file generation details. This leaves significant gaps in understanding the tool's behavior beyond the basic action.

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 a single, efficient sentence that front-loads the key action and resources without any wasted words. It's appropriately sized for the tool's purpose, making it easy to grasp quickly.

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 complexity (initializing a project with multiple components) and the lack of annotations and output schema, the description is incomplete. It doesn't cover what the tool returns, error conditions, or detailed behavioral traits, leaving the agent with insufficient context for reliable use.

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 input schema has 100% description coverage, clearly documenting all 5 parameters. The description adds no additional meaning beyond what's in the schema, such as explaining relationships between parameters or usage examples. Since schema coverage is high, the baseline score of 3 is appropriate, as the description doesn't compensate but also doesn't detract.

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 ('Initialize a new Marp presentation project') and the resources involved ('directory structure, theme, and templates'), which is specific and informative. However, it doesn't explicitly differentiate from sibling tools like 'generate_slide' or 'list_slide_layouts', which might handle slide creation or layout listing rather than project initialization.

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 like 'generate_slide' or 'list_slide_layouts'. It lacks context on prerequisites, such as whether this is for starting a new project from scratch, or any exclusions, like not using it for modifying existing presentations.

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