join_objects

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

With no annotations provided, the description must carry the full burden of behavioral disclosure. It only states 'Join multiple objects into one' but does not mention side effects (e.g., whether original objects are removed, whether selection is required, whether the join is destructive). This is insufficient for a mutation operation.

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 one short sentence, which is concise, but it omits essential information. It is under-specified rather than efficiently structured; the brevity comes at the cost of clarity and usability.

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 a single parameter, no annotations, and no useful schema, the description is far from complete. It does not explain what the tool returns, how the join is performed, or any constraints. This is inadequate for an agent to call it correctly without external knowledge.

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 sole parameter 'object_names' has no schema description (0% coverage), and the description adds no meaning beyond the parameter name. It does not specify whether it expects a list, comma-separated string, or the exact object identifiers. The description fails to compensate for the lack of schema detail.

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 verb ('join') and resource ('multiple objects into one'), which adequately conveys the core action. It is not a tautology and is distinguishable from siblings like create_object or delete_object. However, it does not explicitly contrast with related tools or elaborate on the scope of 'objects'.

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, no prerequisites (e.g., objects must be mesh or selected), and no exclusions. The description leaves the agent to infer context, which is problematic in a large toolset.

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