Api user preferences partial update

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

Annotations already declare readOnlyHint=false, destructiveHint=false and non-idempotent behavior, so the safety profile is known from structured data. The description contributes nothing beyond that—no info on which preference fields are mutable, whether omitted fields are preserved, or auth/scope requirements for the PATCH.

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 unformatted identifier provides no structure or front-loading of useful content. This is under-specification rather than genuine conciseness; no sentence earns its place because there is effectively no prose.

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 no parameters, no output schema and minimal annotations, the description should explain what a 'partial update' of user preferences changes and what it returns. It omits all of this, leaving the agent to guess at the mutation's effect.

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 schema has zero properties, so per the baseline rule a 4 applies; there are no parameters whose semantics the description would need to explain. The description nonetheless mentions nothing about the implicit request body, which a real PATCH endpoint would expect.

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 is just the machine name repeated ('api_user_preferences_partial_update'), a tautology that restates the title. An agent can infer PATCH-style updates on user preferences only from the name's tokens, not from any descriptive sentence.

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 statement of when to use this versus the sibling ciso_assistant_api_user_preferences_retrieve or the users_partial_update tools. No prerequisites, no mention that it likely targets the current user's preferences.

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