Update home catalog settings

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

It goes beyond the annotations by explaining that the write is a shallow merge rather than a replace, gives example keys, and discloses that the previous state is snapshotted and recoverable via nuvio_undo. This is useful behavioral detail for a mutation tool.

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 and about 30 words, each packed with distinct information: the operation, the merge policy, example keys, snapshotting, and undo path. No fluff.

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 communicates the main write semantics and safety via snapshot/undo, which is good. However, with no output schema and a nested free-form settings object, it leaves param scope and platform/profile behavior underspecified for fully reliable use.

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 only 33%, so the description must carry much weight. It provides two example keys for settings, but leaves profile_id and platform semantics unaddressed in the prose, and the settings object is essentially free-form.

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 specific action (shallow-merge), a specific resource (home catalog settings blob), and realistic keys to merge. This clearly separates it from siblings that read settings or update other resources.

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 intended use is implied by describing shallow-merge behavior into home catalog settings, but there is no explicit when-to-use versus alternatives like nuvio_update_settings or nuvio_set_home_catalog_path. The undo note helps with recovery, but not with tool selection.

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