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

Annotations only cover the safety profile (not read-only, not destructive). The description adds genuine behavior beyond them: changing the folder brand cascades to projects in the folder that have no kit of their own, and null explicitly clears the kit. It does not mention whether the cascade is reversible or what a name collision does.

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 dense, front-loaded sentences with no filler; the cascade rule follows the action it modifies. Slight terseness in '(list_brands; null: none)' costs a little readability but not correctness.

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 mutation tool with no annotations on side effects, no output schema, and zero parameter descriptions, the description covers the most important surprise (the brand cascade) but omits return behavior, permission needs, and duplicate-name handling.

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 0%, so the description must carry the load. It clarifies brandId (null = none, ids come from list_brands) but leaves name and folderId undocumented beyond implication — an agent must infer that name renames and folderId identifies the target.

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 and resource: rename a folder or set its brand kit. This is distinguishable from siblings like update_bin, move_projects, or delete_folder, though the description never names a sibling to contrast with.

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?

Provides real usage hints for brandId — use list_brands to obtain an id, pass null to clear the kit — but gives no guidance on when to use this versus set_project_brand, move_projects, or update_bin, and no prerequisites or failure conditions.

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