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

Annotations already carry destructiveHint=true and idempotentHint=true; the description adds the meaningful behavioral facts that exactly one attempt is skipped, that the customer escapes that cycle's charge, and that it is reversible via unskip. The 'WRITE:' prefix merely restates readOnlyHint=false, and it doesn't spell out whether skipping is limited to the next scheduled attempt.

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?

Three short sentences: effect first, undo second, endpoint third. No wasted clauses, and the most important information (what is skipped and why) leads.

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 only two required, fully documented params and annotations covering the safety profile, the definition gives enough to invoke it correctly, including reversibility. A note on the limits of skipping (e.g. only the next attempt in sequence) would close the remaining gap.

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 100% and both parameters document their identity conventions (subscription id vs internal_id, billing_attempts[].id source), so the schema does the work. The description adds only the endpoint note 'PUT /subscription-billing-attempt action=skip', not param-level meaning.

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 (skip) and resource (one upcoming billing attempt) plus the concrete consequence ('customer is not charged for that cycle'), which removes ambiguity. It also names the inverse sibling sealsubscriptions_unskip_billing_attempt, so an agent can distinguish it from reschedule/delete variants.

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 'so the customer is not charged for that cycle' clause gives clear situational context and the description points to the undo path. It does not, however, distinguish this from the adjacent siblings delete_billing_attempt or reschedule_billing_attempt, which are the likely confusions for an agent.

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