Status of the whole stack

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

No annotations are provided, so the description carries the full behavioral burden. It does disclose return shape ('one line per connected service') and enumerates the status fields, but it does not explicitly say whether this call is read-only, whether it hits live services and could be slow, or whether any side effects are possible. The word 'status' implies a read operation, but nothing guarantees it.

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 dense, information-packed sentence plus a two-word usage directive. No filler, no repetition of the title, and the output scope is front-loaded before the field list.

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 zero-parameter tool without an output schema, the description does enough: it says the output is one line per connected service, lists what appears on that line, and tells the agent to start here. It lacks post-call guidance about which sibling to use if specific status fields indicate problems, but that is not essential for a simple status overview.

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?

There are zero parameters, and the schema is just an empty object, so the schema already covers everything needed. The 0-parameter baseline of 4 applies; there is nothing for the description to add about parameter 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?

The description identifies an aggregate 'Status of the whole stack' resource and lists the specific domains it covers (balances, blocked accounts, webhooks, deploys, errors, bounces, DB size). It clearly reads as an overview tool distinct from the granular stripe_* siblings, though it lacks a direct verb like 'get' or 'list' that would push it to 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?

'Start here' is an explicit invocation cue that frames this as the entry point for triage, which gives clear usage context. It does not explicitly name alternatives or state when to switch to sibling stripe_* tools, so it falls short of the strongest rubric level.

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