mapper_create_layer

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

With no annotations provided, the description carries the full burden of disclosing behavior. It only says 'Generate' without explaining what files are created, what transformations are applied, whether existing files are modified, or what the resulting mapping layer looks like.

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 extremely short, with no filler or redundant phrasing. It front-loads the action, though it could arguably be more informative without sacrificing 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?

For a tool with no output schema, no annotations, and a short vague description, the context is incomplete. An agent would not know what output to expect, what 'data mapping layer' concretely means, or how the directory parameter influences the result.

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 100%, so both api_key and directory are already documented in the schema. The description adds no parameter-level meaning beyond implying a project directory context, which keeps it at the baseline score.

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 concrete action ('Generate data mapping layer') and a general domain ('between formats'), so it is not a pure tautology. However, 'data mapping layer' is vague and the description does not distinguish this tool from closely named siblings like mapper_generate_transforms or json_create_mapping.

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 no guidance on when to use this tool versus alternatives. It does not mention prerequisites, target scenarios, or why an agent should choose mapper_create_layer over similar mapping-related tools in the sibling list.

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