sigma_create_member

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

The description adds no behavioral detail beyond annotations. It does not mention side effects such as sending invitations, permission requirements, or whether the member is immediately active. The only added information is the list of member_type values, which is more parameter semantics than behavioral disclosure.

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 a single sentence, front-loaded with the main action, and includes essential parameter clarification. No unnecessary words or repetition.

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?

While the output schema and annotations cover return values and safety, the description lacks important context for a create operation, such as whether an invite email is sent, admin permissions are required, or what happens on duplicate emails. This makes it minimally viable but not fully 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?

The description explicitly defines the allowed values for the 'member_type' parameter ('admin', 'creator', 'viewer'), which is critical since the schema has no enum or description. The other parameters (email, first_name, last_name) are self-explanatory, so no additional 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 clearly states the action ('Create a new member') with a specific resource. This distinguishes it from sibling tools like 'get_member' and 'update_member', which are different operations.

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 guidance is provided on when to use this tool versus alternatives. It does not mention prerequisites, exclusions, or related tools like 'sigma_onboard_member' or 'sigma_bulk_assign_team_members', leaving the agent with no contextual direction.

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