update_my_profile

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

With no annotations, the description should disclose behavioral traits. It only states 'Update your profile' and the constraint, but does not mention authentication needs, whether fields are overwritten, or what happens on null inputs. The schema descriptions cover some of this, but the description adds no new behavioral context.

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 two sentences with no redundant information. It is front-loaded and efficient, earning high marks for conciseness.

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 5 parameters (including a nested object), no output schema, and no annotations, the description is too sparse. It lacks information on return values, side effects, and behavior when multiple parameters are provided (contradicting the 'one action' rule).

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 detailed parameter descriptions (e.g., 'Set username (null to clear)'). The description adds no additional parameter meaning, so baseline 3 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 tool updates the user's profile and adds a constraint ('One action per call'). However, it does not differentiate from sibling tools like 'set_avatar' or 'set_agent_uri' that also modify profile fields.

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 the constraint 'One action per call' but offers no guidance on when to use this tool versus alternatives. For example, it doesn't suggest using 'set_avatar' for avatar-only updates.

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