Update Profile

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

Annotations already indicate this is a write operation (readOnlyHint=false) and not destructive. The description adds no further behavioral context, such as whether unspecified fields are preserved (partial update) or reset, or any authentication requirements. This leaves ambiguity about update semantics.

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 clear sentence with no wasted words. It is appropriately sized for a simple tool and front-loads the action and target.

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 tool is simple, with complete schema and annotations, but the description omits important context about whether the update is partial or full replacement. This is a clear gap given that all parameters are optional, making update semantics critical for correct usage.

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 coverage is 100% with descriptions for both name and avatarUrl. The description itself does not add parameter details beyond the schema, so it holds at the baseline of 3, neither helping nor hindering parameter understanding.

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 tool updates the current user's profile information, using a specific verb and resource. It distinguishes from sibling tools like update_settings and current_user by targeting the profile specifically.

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 the current user's profile needs updating, but does not explicitly state when to use it versus alternatives or any exclusions. There is no direct comparison with sibling tools like update_settings.

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