save_blend

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

With no annotations, the description must disclose behavioral traits. It only states the save action and the path behavior. It does not mention what happens to the existing file (overwrite vs. new file), the effect of the compress parameter, or whether any confirmation is needed. This is a mutation operation with no warning about potential data loss. The description is insufficient for full transparency.

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 concise sentence that front-loads the primary action and the key conditional. It has zero filler and is appropriately sized for a simple save operation. It does not repeat schema information and is efficient.

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 simplicity, the description still lacks essential context: it does not explain the default save location when path is null, what happens to the current file on save, the role of compress, or any return value. Without annotations or an output schema, the agent has insufficient information to call the tool correctly in all scenarios.

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 coverage is 0%, so the description must compensate. It explains the path parameter (save as when provided) but completely ignores the compress parameter, leaving its purpose and effect undocumented. Since there are only two parameters and one is unexplained, the description fails to provide adequate semantic meaning.

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 (save current file) and the resource (the Blender file). It also explains the 'save as' behavior when a path is provided, which distinguishes it from related tools like save_image or export_file. No ambiguity about what the tool does.

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 implies when to use this tool (to save the current file) and gives a conditional for the path parameter (save as). However, it does not explicitly mention alternatives or when not to use it, such as when to use save_image or export_file. The guidance is minimal but not misleading.

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