Update a Nuvio profile

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

The annotations indicate a non-read-only, non-idempotent write, but the description adds valuable context beyond those flags: the previous state is snapshotted before the write and nuvio_undo can revert it. The 'sparsely' qualifier also clarifies that this is a partial update rather than a full replacement.

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?

Two sentences with no wasted words: the operation and fields are front-loaded, and the snapshot/undo note is placed second. It neither restates the schema nor adds irrelevant context.

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?

The description covers the operation scope, the updatable fields, and the important undo safety net. The only notable gap is that it does not explain how profile_index maps to a profile from nuvio_list_profiles, though the schema's bounds and property name carry much of that burden.

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%, so the description compensates by naming the logical field groups: name, avatar color, avatar id/url, and uses_primary_addons. It does not explicitly mention profile_index, but the required parameter is self-explanatory and the phrase 'one profile' implies the targeting mechanism.

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 names a concrete resource ('one profile') and a specific operation ('sparsely update'), then enumerates the affected fields. This distinguishes it clearly from sibling profile tools like nuvio_create_profile, nuvio_delete_profile, and nuvio_set_profile_pin.

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 'sparsely update one profile' conveys the core intended use: modifying an existing profile while leaving unspecified fields untouched. However, it does not explicitly state when to prefer this tool over nuvio_create_profile, nuvio_delete_profile, nuvio_copy_profile_setup, or nuvio_set_profile_pin.

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