create_topic

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

No annotations are provided, so the description must disclose all behavioral traits. It explains the defaultSubscription behavior but does not mention any side effects, return values, or required permissions. The description adds some value beyond the schema but has gaps.

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 sentences, front-loaded with the purpose, and every sentence adds value. There is no unnecessary text.

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 6 parameters and no output schema, the description is incomplete. It does not mention what the tool returns (e.g., created topic ID), error conditions, or creation side effects. A creation tool should provide more context for successful 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 description coverage is 100% (all 6 parameters documented). The description adds contextual meaning for defaultSubscription ('what a contact without an explicit choice counts as'), which enhances understanding. For the remaining parameters, the schema suffices.

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 'Create a preference topic' with a specific verb and resource. It distinguishes the tool from siblings by explaining its unique purpose: contacts can opt in/out independently of global subscription, and campaigns can target it.

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 when to use this tool (create a new preference topic) and explains the key parameter defaultSubscription. However, it lacks explicit when-not or alternative guidance, such as specifying update_topic for modifications.

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