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

Annotations already declare this is a non-read-only, non-destructive, non-idempotent, closed-world operation. The description adds one useful piece of context the annotations lack: creating a team requires the Team plan, implying a gating/auth prerequisite. It omits what happens on duplicate names or whether the caller becomes an owner, but with annotation coverage this is acceptable.

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 short sentence with zero filler, and the plan constraint is stated up front. It leans toward under-specification rather than verbosity, but nothing in it is wasted.

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 that provisions a new team, the description never covers the plan prerequisite in actionable terms, uniqueness behavior, or what the caller gets back. Annotations cover the safety profile, but an agent still lacks enough to call this confidently in edge cases.

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% with a single documented "name" parameter, so the schema does the heavy lifting. The description adds nothing about name uniqueness, length limits, or naming conventions, so the baseline 3 applies.

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 a specific verb and resource ("Make a team") that clearly separates it from get_team, list_teams, delete_team, and rename_team. The plan qualifier narrows scope, though it doesn't explicitly name siblings.

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?

"on the Team plan" is the only usage signal, functioning as an implicit prerequisite. There is no explicit when-to-use guidance, no mention of alternatives like add_team_member, and no note on what happens if a team already exists.

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