Update a user by its ID

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

Description merely repeats the action 'Update', which is already conveyed by annotations (readOnlyHint=false). It does not disclose side effects, error conditions, or permissions needed beyond what annotations indicate.

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?

Extremely concise with two sentences stating purpose and HTTP method. No wasted words, front-loaded.

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?

Despite simple schema, the description lacks instruction on how to construct the request body (which fields are updatable). No output schema, but description does not compensate. Annotations provide minimal context.

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 coverage is 100%, so baseline is 3. Description does not add meaning beyond schema; the body parameter remains vague ('Request body as a JSON object') with no indication of allowable fields.

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?

Description clearly states 'Update a user by its ID', which is a specific verb and resource. It distinguishes from sibling tools like gitbook_get_user_by_id.

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?

No guidance on when to use this tool vs alternatives. Does not mention prerequisites, required permissions, or that to read a user use the get_user_by_id tool instead.

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