admin_set_limits

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

With no annotations, the description carries the burden of disclosure. It usefully states that only specified limits are changed and others remain unchanged, which is a key behavioral trait. However, it does not disclose other important behaviors such as validation of categories, required permissions, or error handling, leaving gaps for the agent.

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 two concise sentences. The first sentence clearly states the purpose and key behavior; the second lists valid categories. No words are wasted, and the most important information is front-loaded.

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?

Given the moderate complexity (nested object parameter) and the absence of an output schema, the description covers the essential context: what the tool does, the partial-update behavior, and accepted categories. It could additionally explain response behavior or validation, but the existing schema and description together are mostly sufficient for correct invocation.

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 100% for parameters, but the description adds the list of valid categories, which is not present in the schema. This provides meaningful additional semantic information beyond the schema's vague 'Limit category'. The partial-update behavior also clarifies how the 'limits' array is applied.

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 clearly states the tool 'Set rate limits for an account', with a specific verb and resource. It further clarifies the scoped behavior ('Only specified limits are created or updated; other limits remain unchanged'), which distinguishes it from sibling tools like admin_reset_limits or admin_delete_limits.

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 provides clear context on what the tool does and its partial-update semantics, implying it is the appropriate tool for setting or modifying specific rate limits. However, it does not explicitly reference alternative tools or state when not to use it, so it falls short of explicit when/when-not guidance.

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