create_profile

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

With no annotations, the description carries the burden and does add useful auth/setup context beyond the basic action. However, it does not disclose side effects, profile limits, default behavior for is_primary/is_public, or what happens on repeated calls.

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 compact sentences carry the essential information. The main action is front-loaded, and the access prerequisite is cleanly separated into a second block without filler.

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 nested theme object, 8 optional parameters, no output schema, and no annotations, the description leaves operational outcomes unexplored such as return values, default primary/visibility state, and profile creation limits. It is adequate but not fully 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?

Schema description coverage is 100%, so the baseline is 3. The description only lists some field groups as optional and adds little semantic meaning beyond the schema. It also does not clarify relationships like is_business with business_name.

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?

States a specific verb ('Create') and resource ('new profile'), and enumerates the optional fields. This clearly distinguishes it from sibling tools like update_profile, get_profile, and delete_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?

Provides explicit access guidance: needs a Proof account, PROOF_API_KEY must be set, and start_login is not the path to this tool. It doesn't explicitly mention update_profile as the alternative for existing profiles, but the create-vs-update context is clear.

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