signupgenius_rsvp

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

The description goes beyond the annotation (readOnlyHint=false) by explicitly stating 'Writes data — confirm with the user before invoking,' making the write behavior clear. It also discloses the internal flow (PreProcessSignup → getSignupInfo → processSignUpFormHandler), adding valuable context not present in any structured field.

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 three sentences with no filler. It front-loads the core action ('RSVP'), then adds necessary scoping, a warning, and an exclusion. Every sentence contributes distinct information without redundancy.

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?

The description covers the purpose, supported sign-up types, internal flow, and key limitation (no slot sign-ups). It also warns about write behavior. While it does not describe return values or error handling, for a simple RSVP action the coverage is strong; a small gap exists around expected success/failure response behavior, but this is not critical given the tool's simplicity.

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 input schema already describes most parameters (6/8, ~63% coverage). The description adds context about the response parameter by linking it to Yes/No/Maybe buttons, but it does not elaborate on firstname/lastname or other parameter details beyond what the schema provides, so the added value is modest.

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 opens with a specific verb and resource: 'RSVP to a SignUpGenius sign-up,' clearly identifying the tool's action. It further distinguishes the tool by scoping it to Yes/No/Maybe-style sheets and explicitly excluding slot-based sign-ups, which differentiates it from sibling tools like signupgenius_get_signup_slots.

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 explicit when-not guidance by stating 'Slot-based sign-ups ... are NOT supported by this tool; a slot signup tool is a separate concern.' It also instructs to 'confirm with the user before invoking,' giving a clear prerequisite for use.

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