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

The description adds substantial behavioral detail beyond the annotations: immediate suspension, API keys stop authenticating at once, refusal to remove the last active owner, and idempotent behavior returning already_absent: true instead of not_found. This fully discloses side effects that are not present in the structured annotations.

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 dense but every sentence carries necessary information: action, reference for IDs, auth requirement, immediate effect, edge case, idempotency behavior, return value, and alternative tool. It is front-loaded with the core action and has no filler.

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 no output schema, the description compensates by explaining return outcomes (removed: true and already_absent: true) and the failure mode for last owner removal. It covers prerequisites, behavior, and routing to related tools, making it fully 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% and already describes user_id as 'Member's user_id from list_team_members.' The description repeats this pointer with 'find ids with list_team_members' but does not add meaningful semantic detail beyond the schema. Baseline 3 is appropriate.

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 states a specific verb and resource: remove one member from the caller's organization by user_id. It distinguishes the tool from related siblings by explicitly naming list_team_members for finding IDs and update_team_member_role for non-removal access changes.

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 clear when-to-use guidance: removes a member, and explicitly points to list_team_members to obtain IDs and update_team_member_role as the alternative when only changing access. It also states the admin API key prerequisite, leaving no ambiguity about authorization.

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