save_document

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

No annotations are provided, so the description bears full responsibility for behavioral disclosure. 'Save' implies overwriting the existing file but does not disclose what happens if the document is not open, if doc_name is null, whether it uses the active document, or what the output/return value contains.

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?

One short sentence with no waste and the key scoping detail ('existing path') front-loaded. It is concise, but it is also so terse that it sacrifices useful usage and behavioral context, so it is not a perfect example of effective conciseness.

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?

For a tool with no annotations, a single undocumented optional parameter, and an output schema, the description is too minimal. An agent cannot confidently determine how to pass doc_name, what happens when it is omitted, or what success/failure looks like. It also does not clearly route to save_document_as for different behavior.

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 for the single parameter doc_name is 0%, and the description adds no guidance about how doc_name is used, whether it is required, or what null means. The param name is somewhat self-explanatory, but the description fails to explain the parameter's role or the default behavior.

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 verb 'save' and resource 'document' clearly state the operation, and the qualifier 'to its existing path' distinguishes it from the sibling save_document_as. However, it does not explicitly identify whether it acts on the active document or the document named by doc_name, leaving slight ambiguity.

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 phrase 'existing path' implies this is for already-created documents, and implicitly contrasts with save_document_as for new paths. But it does not explicitly state when to use this versus alternatives, nor mention prerequisites like the document being open.

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