ise_ers_get_networkdevicegroup

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

With no annotations provided, the description carries full burden for behavioral disclosure. It states the tool retrieves an object but doesn't disclose behavior such as what happens if the ID is not found (error vs empty), whether network calls require specific permissions, rate limits, or whether it can return multiple objects. The description is minimal and reveals nothing about side effects (likely none) or failure modes.

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?

Single sentence, zero waste, appropriately short. While it could be more informative, it is efficiently written with no redundant phrasing.

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?

This is a simple get-by-ID tool with only 2 parameters and no output schema, so complexity is low. However, the description is extremely minimal and doesn't provide matching info (does ID refer to ERS id?), nor does it hint at related get/search operations. There's no indication of acceptable ID formats or whether this retrieves from a specific deployment in a multi-deployment environment beyond the deployment attribute's own schema. For a tool in a complex multi-deployment ISE context, more contextual completeness would help.

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 50%, meaning one parameter (deployment) has schema description while id does not. The description mentions 'by ID' which aligns with the id parameter, providing minimal added meaning. The deployment parameter already has a thorough schema description covering name/slug/number formats and the default behavior, so the description adds little beyond what's in 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 'Get a single Network Device Groups object by ID' has a specific verb+resource (get + Network Device Groups object), clearly stating it retrieves a single object by ID. The verb pattern 'get' distinguishes it from sibling 'list'/'search' variants, though it doesn't explicitly note the difference.

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 is provided. The description does not explain when to choose this over the sibling list/search/set_default_deployment tools, nor does it name alternatives. It relies on the generic 'get' naming convention which is shared across dozens of sibling tools without explicit differentiation.

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