presentation_create_from_file

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

With no annotations, the description carries the full burden for behavioral disclosure. It reveals key behavior: the server reads the file byte-by-byte from the local filesystem, avoiding truncation/corruption, and requires the file to be on the same machine. Minor gaps exist (e.g., no mention of return value or failure modes), but the safety-relevant behavior is well covered.

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 concise and front-loaded: the first sentence states what the tool does, the second gives when-to-use context, and the third states the requirement. Every sentence earns its place, and there is no redundant fluff.

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 that there is no output schema and no annotations, the description does a good job covering the essential context: what it does, when to use it, and a critical operational constraint (same machine, absolute path). The only notable omission is no mention of return value or error handling, but that is somewhat expected for a create operation without an output schema.

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 the baseline is 3. The tool description reinforces the 'absolute path' concept and the file-reading rationale, but adds little new meaning beyond the schema's per-parameter descriptions. It does not provide additional syntax or format details beyond what the schema already documents.

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 specifies the verb+resource: 'creates a presentation by reading HTML directly from a file.' It also distinguishes from siblings by explicitly stating it's for files that already exist on disk, and by referencing 'partial/append' as alternatives to prefer over, which differentiates it from presentation_append and other creation methods.

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?

Provides explicit when-to-use guidance: 'Use it for any file that already exists on disk, especially if it's large or has embedded binary content.' It also gives an exclusionary recommendation ('prefer this over partial/append') and a prerequisite ('requires absolute path'). This is strong usage direction beyond a vague description.

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