PATCH /users/{id}

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

The annotations already disclose destructiveHint=true, idempotentHint=true, readOnlyHint=false, and openWorldHint=true. The description adds useful partial-update semantics ('passing only the fields you want to modify') but does not explain the confirm gate, mutation impact, or what happens to omitted fields.

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 short and front-loaded, stating the operation and partial-update behavior immediately. The trailing provenance sentence adds little invocation value, but the overall text contains no significant bloat.

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 destructive user-update operation with a large nested body, annotations and schema provide most of the necessary structure. The description is adequate but does not address the confirmation requirement, field-specific semantics, or mutation consequences beyond partial-update framing.

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 moderate coverage (67%) and the description adds meaning to the nested body by framing it as a partial set of fields to modify. However, it does not explain the many body fields, the id parameter, or the confirmation parameter, so the schema remains the primary source.

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 states a specific verb and resource: 'Partially update a user' via PATCH /users/{id}. It clearly conveys the partial-update nature, though it does not differentiate this tool from similarly named generated user siblings.

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?

It explicitly says to pass only the fields you want to modify, which gives clear context for when to use this PATCH operation rather than a full replacement. It does not name alternatives or exclusions, so it stops short of full routing guidance.

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