merge_blend_file

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

With no annotations, the description carries the full burden of behavioral disclosure. It attempts to explain the merge methods with parentheticals ('append' (linked), 'link', or 'import' (direct copy)), but this is confusing and likely inconsistent with Blender conventions where append normally means a direct copy. It also omits effects on existing objects, naming conflicts, dependencies, or whether the operation is undoable.

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 brief, front-loaded with the primary purpose, and contains no fluff. The Args section is compact. It loses a point because the terseness contributes to the ambiguity around merge_method, making the text feel under-specified rather than efficiently complete.

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 non-trivial Blender operation with no annotations and no output schema, this description is too thin. It does not explain the practical consequences of each merge method, what the default 'append' does, how objects are placed into the scene, or how to handle failures. An agent would need to rely on external knowledge or experimentation to invoke it correctly.

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?

The schema has 0% description coverage, so the description is solely responsible for explaining parameters. It documents both params: filepath as the path to the .blend file and merge_method with three possible values. However, the value explanations are inconsistent—'append' is labeled 'linked' and 'link' gets no explanation—so it adds partial, useful meaning but remains imperfect.

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 states a specific action ('Merge objects from another .blend file into the current scene') and identifies the resource clearly. However, it does not differentiate itself from closely related siblings such as 'link_blend_data' or 'import_file', and the term 'merge_method' adds ambiguity about what the operation fundamentally 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?

There is no guidance on when to use this tool versus alternatives like 'link_blend_data', 'import_file', or 'open_blend_file'. The description implies its use by naming the operation, but it provides no context, prerequisites, or exclusion criteria to help an agent choose among overlapping tools.

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