Set a voice profile

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

No annotations are provided, so the description must disclose behavioral implications on its own. It only says 'creates or updates' and lists fields, but does not explain whether updates are partial or full replacements, what gets overwritten, whether userId is required, or what the operation returns.

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, front-loaded sentence with no filler. It communicates the core action and key parameter domains efficiently.

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?

With 8 parameters, no annotations, no output schema, and zero schema descriptions, this description is too sparse. It does not tell the agent how to handle partial updates, which parameters are needed for a valid call beyond userId, or what the result of the operation looks like.

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 0%, and the description must compensate for all 8 parameters. It names several parameter categories (tone, vocabulary, emoji, sentence length, stories, notes), but it omits userId entirely and does not clarify the distinction between vocabularyDo and vocabularyAvoid or the meaning of the enums.

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 a specific verb ('Creates or updates') and resource ('the voice profile for a user'), and enumerates the relevant content areas. This clearly distinguishes it from read-only siblings like get_voice_profile and from broader tools like update_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 phrase 'creates or updates' implies that this tool is appropriate both for new voice profiles and for modifying existing ones. However, it gives no explicit guidance on when to prefer bootstrap_voice_profile, get_voice_profile, or update_profile instead.

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