list_account_subscriptions

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

With no annotations, the description carries the full burden. It does disclose the return payload shape (product, state, price), which is valuable since there is no output schema, but it says nothing about auth requirements, pagination, rate limits, or whether results are cached.

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, zero padding, and the core action is front-loaded. The second sentence carries real information because no output schema exists, so it 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 simple one-parameter read tool with no annotations and no output schema, the description covers the action and the return contents. The main gap is the absence of any guidance relative to the numerous sibling subscription/subscription-adjacent tools.

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?

Single parameter with 100% schema description coverage, so the schema already documents account_id fully. The description adds no syntax, format, or sourcing detail beyond what the schema provides — baseline 3 applies.

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 ('List the subscriptions for a Cloudflare account') and the plural 'subscriptions' hints at the distinction from the singular get_account_subscription sibling. It does not explicitly name that sibling, so an agent must infer the difference rather than read it.

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 statement of when to use this tool versus alternatives, and no prerequisites or exclusions. The sibling set contains get_account_subscription, get_subscription_cancel_reason, and many other account-scoped getters, but the description gives no routing guidance among them.

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