Labs64/NetLicensing-MCP

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

With no annotations provided, the description carries full burden but only states it's a list operation. It doesn't disclose whether this is a read-only operation, requires authentication, has rate limits, pagination behavior, or what happens if the customer doesn't exist. The description adds minimal behavioral context beyond the basic 'list' 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?

The description is appropriately sized with a clear purpose statement followed by parameter explanations. The two-sentence structure is efficient, though the parameter section could be integrated more smoothly rather than as a separate 'Args:' block.

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 has an output schema (which handles return values) and 2 parameters with 0% schema coverage, the description adequately covers parameter semantics but lacks behavioral context. For a list operation with no annotations, it should mention whether this is safe/read-only, pagination, or error conditions to be more complete.

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 0%, so the description must compensate. It provides clear semantics for both parameters: 'licensee_number' is explained as 'Customer whose licenses to list' and 'filter' as 'Optional server-side filter expression (e.g. 'active=true')'. This adds meaningful context beyond the bare schema, though it could provide more examples or filter syntax details.

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 clearly states 'List all licenses for a specific customer' which specifies the verb (list) and resource (licenses) with scope (for a specific customer). It distinguishes from siblings like netlicensing_get_license (singular) and netlicensing_list_licensees (different resource), but doesn't explicitly contrast with other list tools like netlicensing_list_license_templates.

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 implies usage when needing to list licenses for a customer, but provides no explicit guidance on when to use this vs. alternatives like netlicensing_get_license (for single license) or netlicensing_list_licensees (for listing customers themselves). No prerequisites or exclusions are mentioned.

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