profile_set_voice

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

No annotations are supplied, so the description carries the full behavioral burden. 'Replace' usefully discloses that existing content is overwritten rather than appended, but nothing is said about permissions, validation of the supplied text, length limits, or what a successful call 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?

A single front-loaded sentence with no wasted words; the destructive action and target are stated immediately. It is arguably too terse rather than padded, but nothing is redundant.

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?

For a mutation tool with no annotations, no output schema, and a fully undocumented parameter, the definition leaves key gaps: relation to profile_get_voice, expected input shape, and consequences of replacement. An agent could invoke it, but not confidently or correctly on the first try.

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 single required parameter 'text' has no description, so the definition must compensate. The phrase 'the writing-style guide' implicitly maps 'text' to the new guide content, but it says nothing about expected format (plain text vs. markdown), length, or structure.

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 ('Replace') and resource ('the writing-style guide for cover letters'), which is unambiguous about what the tool does. It does not, however, name or distinguish itself from the sibling profile_get_voice (or profile_update), which an agent must infer is the read complement.

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?

There is no explicit when-to-use guidance, no mention of the read counterpart profile_get_voice for checking the current guide before overwriting, and no note about when a full replacement is preferable to profile_update. Only the word 'Replace' implies usage context.

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