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CaeliaEve

AutoCAD MCP Ultra

by CaeliaEve

Lock Layer

layer_lock

Lock any AutoCAD layer by name to keep entities visible but prevent selection or modification, protecting your drawing from accidental edits.

Instructions

Lock a layer (entities visible but cannot be selected or modified).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYesLayer name to lock

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

Annotations provide only a title, so the description carries the behavioral burden. It does disclose the key state change: entities are visible but cannot be selected or modified. However, it does not mention behavior for unknown layer names, idempotence, or side effects on existing selections or editing workflows.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that front-loads the action and includes only the essential behavioral clarification. There is no filler or redundant wording.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a one-parameter command with an output schema, the description sufficiently explains the operation's effect for basic invocation. It is slightly thin on alternative routing and edge-case behavior, but those are not critical for calling the tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema fully documents the single parameter 'name' with 100% coverage. The description adds no additional meaning about the parameter beyond what the schema already provides, so the baseline of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb ('lock') and resource ('a layer') and defines the behavioral effect: entities remain visible but cannot be selected or modified. This clearly differentiates it from unlock, freeze, hide, and modify operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives no explicit guidance on when to use this tool instead of related layer commands such as layer_freeze, layer_hide, or layer_unlock. An agent would have to infer the appropriate context from the tool name and sibling list.

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

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