Update Profile

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

The description only says 'update,' implying mutation. Annotations confirm readOnlyHint=false (mutation allowed) and destructiveHint=false (non-destructive). However, no details are given about what happens on success, error responses, or whether partial updates are allowed. The description does not add beyond the bare minimum.

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 that conveys the tool's purpose without any unnecessary words. It is front-loaded and efficient.

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's simplicity (two optional parameters, no output schema, no nested objects), the description is minimally adequate. However, it lacks guidance on partial updates or validation, which would be useful for an agent.

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 100%, with clear parameter descriptions ('Display name', 'Avatar URL'). The description adds no additional meaning or examples beyond what the schema provides, so baseline is appropriate.

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 verb 'update' and the resource 'current user's profile information.' It uniquely identifies the tool among siblings, which include many update tools but none targeting the user's own profile.

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 does not explicitly state when to use this tool versus alternatives. However, the name and context imply it is for updating the current user's profile, and sibling tool names like 'update_settings' suggest different scopes. No exclusion or alternative guidance is provided.

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