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

Annotations already declare destructiveHint=true, idempotentHint=false, readOnlyHint=false, and openWorldHint=true, and the description is consistent with them. However, it adds nothing beyond the mutation itself: no permissions requirements, no note on the approval_id/beon_* context params, no statement about whether unbanning is reversible or how it interacts with network restrictions.

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 front-loaded sentence with zero filler, which is efficient. It is arguably too terse for a 9-parameter destructive mutation, but as a pure conciseness measure it does not waste words.

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 destructive, non-idempotent, 9-parameter mutation with 0% schema coverage and no output schema, one sentence leaves major gaps: the approval flow implied by approval_id, the required project_ref, and the batch size limit are all unexplained.

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% across 9 parameters, so the description must compensate and does not. It hints at ipv4_addresses with "IPv4 addresses," but never mentions project_ref (required), the approval_id workflow, the beon_* context fields, or the maxItems=50 constraint.

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 ("Unban") and resource ("selected database client IPv4 addresses"), which is clear enough for an agent to identify the operation. It does not explicitly differentiate itself from the close siblings supabase_list_network_bans or supabase_update_network_restrictions, so it falls short of a 5.

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?

No when-to-use, when-not-to-use, prerequisites, or alternatives are given. The presence of an approval_id parameter suggests an approval workflow that must precede this call, but the description never mentions it or routes the agent to supabase_list_network_bans to discover which IPs are banned.

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