manage_workbooks

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

The description lists actions but does not disclose behavioral traits beyond the annotations' destructiveHint. It lacks details on side effects (e.g., saving overwrites, closing may lose changes, recalculating is time-consuming) or required permissions.

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: a one-line summary followed by argument explanations. Every sentence provides unique value, and the structure is front-loaded with the main purpose.

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 (multiple actions, 5 parameters), the description covers parameter semantics well. However, it omits return behavior and error conditions. For a tool without output schema, it is mostly complete.

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?

With 0% schema coverage, the description fully compensates by explaining each parameter's purpose, especially the 'action' parameter with specific allowed values, and how other parameters relate to actions (e.g., filepath for open/save, read_only for open).

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 it manages Excel workbooks and lists specific actions (list, open, save, close, recalculate). While it distinguishes from siblings like 'manage_sheets' by focusing on workbooks, it does not explicitly contrast with all sibling tools.

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 does not mention when not to use it or suggest specific sibling tools for other tasks.

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