join_objects

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

Discloses key behavior (merging into first object) but lacks details on whether other objects are removed, supported object types, or error conditions. Given no annotations, more completeness would be expected.

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?

Two sentences with no extraneous content, though the first sentence partially repeats the second. Still, it's efficient and front-loaded.

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 simple tool, the description covers basic purpose and behavior. However, without output schema or annotations, it omits details like supported object types, prerequisites, and what happens to the non-target objects. Adequate but not fully 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?

The description suggests the 'names' parameter is a list of object names and that the first is the target. However, it doesn't confirm that the strings are object names, nor does it specify required format or order, leaving ambiguity despite 0% schema coverage.

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 'Join multiple objects into one' with the specific behavior 'merged into the first one in the list.' This distinguishes it from siblings like align_objects or merge_by_distance.

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?

No guidance on when to use this tool versus alternatives such as boolean_operation, merge_by_distance, or separate_object. The description does not mention any prerequisites or exclusions.

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