place_navmesh_bounds_volume

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 does explain that the editor automatically generates the navmesh within the volume and that AI navigation is limited to the volume, which is useful. But it omits side effects like whether an existing volume is replaced, whether the operation is destructive, or whether any prerequisites (e.g., loaded level) are required. The description adds context but stops short of full transparency.

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 well-structured: succinct purpose, key behavior, a visibility tip, parameter definitions, a KB reference, and an example. Each sentence adds value. It is somewhat longer than strictly necessary but nothing feels wasteful, and the structure makes scanning easy.

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 the simplicity of placing a volume with two parameters (both optional with defaults), the description covers the essential invocation details: what it does, what the parameters mean, and an example. The main gaps are lack of explicit side effects and prerequisites, but for a placement tool with no annotations and an output schema, this is reasonably 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?

Schema description coverage is 0%, so the description must compensate. It defines both parameters explicitly: 'location: [X, Y, Z] world location for the volume center' and 'scale: [X, Y, Z] scale to cover the navigable area'. The example call with no arguments clarifies that defaults are acceptable. This is sufficient for an agent to invoke the tool correctly, though units and coordinate conventions are not stated.

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 clear verb ('Place') and a specific resource ('a NavMesh Bounds Volume'), and explains its purpose: defining the navigable area for AI. It does not explicitly differentiate from siblings like setup_navmesh, but the name and description are unambiguous enough that an agent can infer its role.

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?

The description provides practical guidance: 'Scale the volume to cover all walkable surfaces' and explains that AI agents can only navigate within the bounds. However, it never explicitly states when to use this tool versus alternatives (e.g., setup_navmesh) or when not to use it. The usage is implied rather than stated as a decision rule.

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