etabs_assign_area_stiffness_modifiers

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

Annotations already indicate idempotentHint=true and destructiveHint=false. The description adds that the tool modifies stiffness modifiers and returns a JSON with applied values, which aligns with annotations. No contradictions; transparency is good.

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 somewhat long but well-structured: intro, target selection, presets, parameter definitions, and return value. It is front-loaded with the main action, and every sentence adds value, though minor trimming could improve conciseness.

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 tool's complexity (11 parameters, no schema descriptions), the description covers target selection, presets, parameter semantics, and return format. It lacks mention of error handling or prerequisites (e.g., model must be open), but is largely complete for its purpose.

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?

With 0% schema description coverage, the description provides detailed explanations for all 11 parameters, including the meaning of membrane, bending, and shear modifiers, and a full list of presets. This adds critical meaning beyond the schema.

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 uses a specific verb ('Apply') and resource ('area objects (walls, slabs, decks)'), clearly distinguishing it from sibling tools like etabs_assign_frame_stiffness_modifiers. It also states the exact purpose: applying cracked-section stiffness modifiers.

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?

Explicitly states how to select targets (names, group, or all areas), which provides clear context. However, it does not mention when NOT to use this tool versus the sibling etabs_apply_aci_stiffness_modifiers, which might cause confusion.

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