truthgate_upgrade_pro_credits

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions the $0.99 cost and that it returns a link, but does not clarify whether calling it initiates a purchase, what permissions are required, how the link is scoped, or what side effects occur.

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 a single compact sentence with the core action and cost front-loaded. The promotional slash phrasing ('Pro Credit Pack / License Key link') mildly blurs exactly what is returned, but overall it is efficient.

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 this is adequate: it states the cost, the returned link, and the high-level benefit. However, with no annotations or output schema, it should clarify whether the call is purely a read/link retrieval or a purchase trigger, and what authentication or team context is needed.

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 tool has zero parameters and an empty schema, so there are no parameter semantics to document. The baseline score for this case is 4.

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 uses a specific verb ('Get') and resource ('Pro Credit Pack / License Key link') and states the intended outcome of unlocking audit-log and guardrail features. It is clearly distinct from the sibling tools, which focus on masking, integrity verification, and action inspection, though it does not explicitly name those alternatives.

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 implies the tool is for upgrading to Pro, but gives no explicit guidance on when to use it versus alternatives, when not to use it, or what prerequisites must be met. An agent must infer the usage context entirely.

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