subscriptions__subscription_status

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

The description notes that the account key is always masked in output, which is a security behavior. It also implies the tool returns bearer-owned data, but does not explicitly state idempotency, side effects, or authentication requirements. With no annotations, this is moderately informative but not comprehensive.

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?

The description is very concise, with two sentences that immediately convey the purpose and a key behavioral note. No unnecessary words or repetition.

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?

Given the simplicity of the tool (one parameter, no output schema) and no annotations, the description covers the basic purpose and a security feature. However, it lacks details on the return structure, possible error states, or pagination, leaving some gaps for an agent to fully understand usage.

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?

The only parameter is account_id, and the schema provides no description. The tool description mentions 'bearer-owned' and 'account key masked' but does not explicitly explain what account_id represents or its format. The added value beyond the schema is minimal.

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 clearly states the tool returns subscription lifecycle and current-period quota, with a bracketed context specifying it covers B2B monthly seats, entitlement quota, overage, and MRR. This distinguishes it from sibling tools like create_account or get_plan.

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 does not provide any guidance on when to use this tool versus alternatives such as get_plan or mrr_summary. There is no mention of prerequisites, context, or exclusions.

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