grant

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

With no annotations, the description carries the full burden for behavioral disclosure. It indicates a mutating 'set' operation and an admin-only restriction, but it does not mention side effects, whether the previous operator class is overwritten, or any consequences of the change.

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?

The description is a single front-loaded sentence with no filler. Every word adds information, and the admin-only constraint is placed at the beginning where it is most likely to be noticed.

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 tool has three required parameters and no annotation support, yet the description only partially explains them. An agent still lacks clarity on what 'working_folder' refers to and what behavioral effects setting the operator class has, so the context is incomplete.

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 must compensate for parameter meaning. It clarifies 'operator_class' by listing possible values, and implicitly references 'project', but leaves 'working_folder' completely unexplained with no schema help.

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 uses a specific verb ('set') with a clear resource ('a project's operator class') and enumerates the allowed values ('admin or bound'). This distinguishes it from sibling tools like revoke or list_roles by targeting a specific assignment operation.

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 'Admin only' prefix gives a useful permission context and the action itself implies when to use the tool, but it does not explicitly state when not to use it or contrast it with alternatives such as revoke or role management tools.

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