ppt_open

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It does state that the tool initializes an isolated session with a working copy and returns session status and presentation overview, which gives some insight into side effects (state creation). However, it does not mention potential failures, need for cleanup, or the significance of the returned session for subsequent operations. It is adequate but not comprehensive.

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, well-structured sentence that immediately states the action, purpose, and return value. It is concise with no fluff or redundancy. Every phrase contributes to understanding the tool's core function.

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 this is the entry-point tool for an editing session, the description fails to mention that the returned session status likely contains an identifier that must be used with subsequent tools. It also does not mention prerequisites like file existence or read/write permissions. While an output schema exists, the description alone does not provide enough context for an agent to correctly chain it with sibling tools.

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 0%, so the description must explain the parameter semantics. The only parameter, presentation_path, is not mentioned at all. The description only says 'Open a PowerPoint presentation' without clarifying the expected format, file access requirements, or any constraints. It adds no meaning beyond the schema's type and title.

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 verb 'Open' with the resource 'PowerPoint presentation', and adds the unique purpose of initializing an isolated editing session with a working copy. This distinguishes it from sibling tools like ppt_save or ppt_modify_shape, which operate on an already-open presentation. The function's role as the entry point is unambiguous.

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 does not provide explicit guidance on when to use this tool versus its siblings. It implies that opening is a prerequisite for editing by mentioning 'isolated editing session', but it never states 'call this before any modification tools' or outlines conditions where it should not be used. The agent is left to infer the usage context from the tool name and sibling list.

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