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

Annotations already declare destructiveHint=true and idempotentHint=false, so the danger profile is known. The description adds genuinely new context that approvals may be required and that business workflow approvals always apply — but it does not say whether the removal is immediate, whether it fails if the member is not on the team, or what happens to related assignments.

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?

Two short sentences, with the core action front-loaded. The approval sentence is slightly boilerplate but carries real information, so nothing 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?

An output schema exists, so return values need not be explained, and annotations cover the destructive/non-idempotent profile. Still, for a destructive write with two undocumented required identifiers and no prerequisite-lookup guidance, the description leaves meaningful practical gaps.

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%, and both required parameters (siteId, memberId) are bare UUID strings with no description. The description's phrase 'site team assignment' only weakly implies the two identifiers and gives no guidance on obtaining the memberId or whether it is an organization user id versus a team invitation id.

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: 'Remove a site team assignment', which an agent can distinguish from add_site_team_member and update_site_team_member by the verb alone. It does not explicitly contrast with remove_project_team_member, but the site vs project scope is clear from the noun phrase.

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 never says when to use this versus siblings (e.g., use list_site_team to find the memberId first, or that update_site_team_member exists for modifying rather than removing). The second sentence about approval config is a governance note, not usage guidance or exclusions.

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