vibecloud_subscription_list

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

With no annotations, the description carries the full burden. It conveys read-only behavior through 'Đọc' / 'List' and hints at return contents, but discloses nothing beyond that — no auth requirements, error behavior, or output format details. Adequate for a simple read alias, but not rich.

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?

Three short sentences with the alias relationship front-loaded before the behavioral summary. The bilingual repetition ('Alias tương thích' / 'Compatibility alias', and the Vietnamese/English listing) is slightly redundant but compact and serves dual-language users without waste.

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?

Low-complexity tool: zero parameters, no output schema, no annotations. The description covers what it returns (subscriptions, renewal period, auto-renew) and its alias identity, which is sufficient for an agent to call it correctly. Minor gap: no explicit statement that it is behaviorally identical to cloud_subscription_list.

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 a trivially complete 100% schema coverage, so the baseline of 4 applies. The description adds no parameter information, and none is needed since the empty schema already documents everything.

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 clear verb+resource pair ('List subscriptions', 'Đọc các gói đang dùng') and adds specific return scope (packages in use, renewal period, auto-renew). It explicitly identifies itself as a compatibility alias of cloud_subscription_list, which distinguishes it from the canonical sibling and the broader vibecloud/cloud pair pattern.

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?

Naming cloud_subscription_list as the compatibility alias target implies the two are interchangeable, and the sibling list's consistent vibecloud_* / cloud_* pairing reinforces the pattern. However, it never explicitly states when to choose this alias over the canonical tool, nor any conditions or exclusions.

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