whatsapp_update_my_profile

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

No annotations are provided, so the description must disclose behavioral traits. It only states 'update', implying mutation, but fails to mention side effects, data constraints (e.g., picture size limits), or whether changes are immediate. For a mutation tool with no annotations, this is insufficient.

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?

Two short, direct sentences with no unnecessary information. Highly concise and front-loaded.

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 simplicity of the tool (3 optional parameters, no output schema), the description is adequate for basic use. However, it lacks behavioral details like what happens to fields not specified, and the absence of any output schema leaves the agent guessing about the response. Compared to the calibration example for update_drive (score 2), this is slightly better because all parameters are documented, but still not 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 input schema already describes each parameter thoroughly (display name, status text, base64 JPEG picture). The description adds no extra meaning beyond stating 'all fields are optional', which is redundant given the schema has no required fields.

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 uses the specific verb 'Update' and explicitly states the resource 'own WhatsApp profile'. It clearly distinguishes from sibling tools like whatsapp_get_my_profile and other update tools for groups/communities.

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 clarifies that all fields are optional, which helps an agent understand it can update any subset. However, it does not specify when to use this versus similar update tools like whatsapp_set_privacy_setting, nor does it mention prerequisites beyond the tool itself.

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