set_settings

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

Annotations already declare destructive=true, idempotent=false, and readOnly=false. The description adds meaningful behavioral context beyond those flags: it validates and merges changes, and refuses to write without confirmation. It still does not specify merge depth, overwrite behavior for omitted keys, or validation failure behavior, so it is not a 5.

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 front-loaded sentence with no wasted words. The key action and safety gate are stated immediately.

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 an output schema, full parameter descriptions, and annotations covering the destructive profile, the description is complete enough for an agent to call the tool correctly. It still leaves the relationship to get_settings/reset_settings and merge semantics implicit, so it is not fully complete.

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 100%, and the schema already documents name, values, and confirm in detail. The description adds only the concepts of profile changes and confirmation gating, which aligns with confirm but does not add syntax or format details beyond the schema. Baseline 3 is appropriate.

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?

States specific verbs ('validate and merge') and a resource ('profile changes'), which distinguishes this mutation from sibling tools like get_settings and reset_settings. It does not explicitly name those alternatives, so it falls short of a 5.

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 description implies use when applying profile changes and notes a confirmation gate, but it does not explicitly say when to use this versus get_settings or reset_settings, nor does it state the prerequisite of retrieving values first. Usage is therefore implied rather than fully guided.

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