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

Annotations already mark the operation as destructive and not read-only. The description adds the immediate timing ('today'), the outcome ('membership resumes'), and a money scope requirement, but does not disclose error behavior for non-frozen memberships or any side effects on billing.

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?

One short sentence with the core action, timing, and scope requirement; no filler. The additional '[requires scope: money]' is useful and earns its place.

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 one-parameter destructive mutation, the description gives the action, timing, and auth requirement, but omits return/error behavior and the precondition that the membership must currently be frozen (beyond the word 'active'). It is adequate but not complete for an agent with no output schema.

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 0% and the description never explains membership_id. The parameter name and the phrase 'the membership' make the meaning inferable, but the description adds no semantic detail about format, source, or validity conditions.

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 names the action ('end an active freeze') and the resource ('the membership'), and states the result ('resumes'). This clearly distinguishes it from siblings like freeze_membership, cancel_membership, or extend_membership.

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 the tool is for memberships currently in an active freeze, but it never explicitly says when to prefer this over freeze_membership or cancel_membership. No alternative or exclusion is mentioned, so usage guidance is only implicit.

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