cloud_credit_redeem

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

With no annotations provided, the description carries the behavioral burden. It usefully discloses that the code must be user-provided and approved, and it warns against guessing. However, it does not describe the tool's effects such as code consumption, credit application, or failure behavior.

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 compact and front-loaded, stating the action and the critical safety guardrail in two short clauses. The bilingual wording is not pure duplication: the Vietnamese adds the explicit 'do not guess' rule while the English names the approved promotional credit code.

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 one-string-parameter redemption tool with no output schema, the description is nearly complete: it identifies the required input, the consent condition, and a safety rule. It omits return/result behavior and explicit platform differentiation from vibecloud_credit_redeem, but these are minor for selecting and invoking correctly.

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 schema only describes 'code' as a 2-64 character string with no semantic explanation. The description adds that it is a promotional credit code supplied by the user, which materially clarifies the parameter. Format details are still absent, but for a single simple string this is adequate compensation.

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 a redeem action on a credit code ('Redeem an approved promotional credit code') and adds that the code must be user-approved. It does not explicitly differentiate cloud_credit_redeem from vibecloud_credit_redeem beyond the tool name, so it falls short of a perfect 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?

The description gives an explicit precondition: only redeem codes the user has provided and agreed to. It also gives an explicit prohibition: do not guess codes. It does not name an alternative tool, but the main decision rule for safe usage is clear.

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