set_environment_param

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

With no annotations, the description carries the full burden, but it provides no behavioral detail. It doesn't disclose that this modifies a .tres file, whether the file must exist, whether changes are persisted, or any side effects or return behavior. It is a tautology.

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 short sentence with no wasted words or redundant information. However, it is so terse that it lacks useful content, so it doesn't fully earn the top score for structure.

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?

The tool has three required parameters, no output schema, and no annotations. The description offers no context about file existence, persistence, value types, return values, or where this tool fits in a workflow (e.g., with read_environment or create_environment). It is minimally complete for the simplest invocation but leaves significant gaps.

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%: 'path' is described as a .tres Environment file, 'param' gives examples like background_color, and 'value' is noted as a new value. The description adds no meaning beyond what the schema already provides, so it meets the baseline for high 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 'Set environment parameter' essentially restates the tool name (set_environment_param) with no added detail. It doesn't clarify that it refers to a Godot Environment resource (.tres) or distinguish it from sibling set_*_param tools beyond the tool name itself.

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, what prerequisites exist, or which alternatives (e.g., read_environment, create_environment) are more appropriate. The description simply states the action without context.

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