finalize_and_join_structure

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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is known. The description adds one genuinely useful behavioral fact — joins are applied in structural priority order — but never explains what the destruction means in practice: whether existing geometry/joins are overwritten, whether it is undoable, or whether it requires a loaded structural model.

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?

One well-formed sentence with the operation and its scope front-loaded and zero filler. 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?

An output schema exists so return values need no explanation, but for a destructive, model-altering tool the description omits preconditions, side effects on existing joins/geometry, and recovery options. Given the blast radius, it leaves too much to inference.

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 0% and the single level_name parameter is undocumented in the schema. The description only implies that the level scopes the operation; it does not say whether the name must match exactly, is case-sensitive, or must already exist, so it only partially compensates for the coverage gap.

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 (joins geometry) and a specific resource set (columns, walls, beams, slabs) scoped to a level. It is clearly a structural-finalization operation, distinguishable from the batch_create_* siblings, though it does not name which sibling to run instead or after.

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 when-to-use guidance at all: nothing says this should follow element creation, that elements must already exist on the level, or what to do if the model is not yet structurally complete. The agent must infer timing and preconditions from sibling names alone.

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