devices_list

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

The verb 'List' and the 'all' scope clearly imply a read-only, unfiltered enumeration, which is the main behavioral trait. However, with no annotations provided, the description carries the full burden; it does not mention pagination, response shape, result limits, or any other operational behavior beyond the basic listing action.

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?

A single, front-loaded sentence that communicates the purpose and scope immediately. There is no filler, repetition, or unnecessary detail.

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 parameterless list endpoint, the description is largely sufficient: an agent can invoke it with no arguments and understand that it returns all registered devices/agents. The absence of any output schema and any mention of pagination or result size leaves a minor gap, but it does not prevent correct invocation.

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?

The tool has zero parameters, so there are no semantics to clarify and the schema is fully covered by construction. The baseline of 4 applies because no parameter-level explanation is needed.

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 ('List') and identifies the resource ('registered devices/agents known to the 1E platform'), making the core purpose clear. However, it does not explicitly contrast itself with sibling tools like devices_search or devices_get_by_fqdn, so sibling differentiation is only implicit.

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?

There is no guidance on when to use this tool versus alternatives such as devices_search, devices_get_by_fqdn, or devices_summary. The word 'all' hints at an unfiltered inventory, but the description never states when to choose this over a search or lookup tool.

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