Multilead Open API MCP Server

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

With no annotations provided, the description carries the full burden. It implies a write operation ('registers', 'Created user object') and mentions email confirmation behavior via 'skip_confirmation_email'. However, it lacks details on authentication requirements, rate limits, error conditions, or whether registration is immediate versus pending confirmation.

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 well-structured with clear sections (Args, Returns) and uses bullet-like formatting for parameters. Each sentence adds value, though the opening line 'This action registers a new user on the platform' is somewhat redundant with the title-equivalent 'Register New User' header.

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 mutation tool with no annotations, the description does a good job: it explains the action, documents all parameters thoroughly, and notes the return value. The presence of an output schema means it doesn't need to detail the response structure. However, it could better address behavioral aspects like permissions or side effects.

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%, but the description compensates well by documenting all 7 parameters with clear semantics: it distinguishes required vs. optional fields, provides examples (e.g., phone format), explains default values, and clarifies purpose (e.g., 'invitation_id for secure registration'). This adds significant value beyond the bare 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 clearly states the action ('registers a new user') and specifies the platform context. It distinguishes from siblings like 'create_seat' or 'invite_team_member' by focusing on user registration rather than team management or invitation workflows. However, it doesn't explicitly contrast with 'get_user_information' or other user-related tools.

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 like 'invite_team_member' or 'create_seat', nor does it mention prerequisites such as admin permissions or whitelabel access. It simply states what the tool does without contextual usage instructions.

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