sub_generate_system

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

No annotations are provided, so the description carries the full burden. It only says 'Generate,' without disclosing whether files are written to the directory, whether an API key is required for external calls, what side effects occur, or what the output looks like. This is minimal behavioral disclosure.

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 short and front-loaded, with no wasted words. However, it is under-specified to the point of providing little actionable information, so the brevity is not an asset here.

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 no output schema and no annotations, the description should explain what the tool returns or generates, what the api_key is for, and what side effects to expect. None of that is present, leaving the description incomplete for safe and correct invocation.

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 50%: the directory parameter has a one-line description, while api_key has none. The tool description adds no parameter information whatsoever, so it does not compensate for the undocumented api_key parameter or clarify how either parameter affects generation.

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 states a verb and resource: 'Generate subscription lifecycle management.' However, it does not specify what is actually produced (code, config, scaffold) or what 'lifecycle management' includes, making it vague and hard to distinguish from siblings like sub_add_billing or subscription_billing_setup without opening the schema.

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?

There is no guidance on when to use this tool versus alternatives, no prerequisites, and no mention of what makes this the correct choice over other subscription-related siblings. The description leaves all usage decisions to inference.

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