setCompRenderer

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

No annotations are provided, so the description carries the full burden. It says nothing about whether switching the renderer is destructive/reversible, whether it requires a selected composition, what happens if compName is omitted, or how existing 3D layers are affected. For a mutation tool this is a real gap.

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?

A single front-loaded sentence with the core action first. The nested parentheses make the example list slightly dense, but there is no filler and every clause carries information.

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 two-parameter tool with no output schema this is nearly adequate, but with zero annotations a mutation tool should at least state the default for the optional compName and whether the change is a normal undoable edit. The core purpose is covered but the operational context is thin.

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 100%, so the baseline is 3, but the description goes beyond the schema's bare value list by explaining what each engine value is for (Advanced 3D for PBR/models, Cinema 4D for extrusions). It still says nothing about the optional compName parameter's 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?

States a specific verb+resource ('Switch composition 3D render engine') that an agent can immediately act on. It also implicitly distinguishes itself from the sibling getCompRenderer by being the mutating counterpart, and the parenthetical enumerates the concrete engine values.

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 explicit when-to-use, prerequisites, or exclusions are given. The parenthetical hints at selection criteria ('PBR & 3D models', 'extrusions'), which is useful implied guidance, but the agent must infer that this is the setter for the engine read by getCompRenderer.

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