Tạo VPS MONA Cloud

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

Adds real behavioral context beyond annotations: it requires a sufficient wallet balance, returns an estimate plus job_id, and supports sandbox=true for zero-cost testing without a wallet. Annotations only declare write/openWorld/non-idempotent, so the approval-gating and wallet prerequisite are valuable additions.

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?

Compact with no filler, and 'Estimate, approve, create VPS' is a good one-line summary, but the Vietnamese/English mix, slash separators, and run-on sentences hurt front-loading and readability.

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 9-parameter mutation tool with no output schema, the description covers the important operational context (wallet check, approval flow, estimate/job_id return, sandbox). However, several parameters remain undocumented and no permissions/error behavior is given, so it is adequate rather than complete.

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 only 11%, so the description must carry the load. It does clarify the key mode-dependent logic (monthly omits CPU/RAM/disk and uses plan_code; period=month|year), but leaves package_slug, billing_mode, and app_name unexplained, so it only partially compensates for the coverage gap.

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?

States a specific verb+resource ('tạo VPS' / create VPS) and frames the full estimate→approve→create flow. It also names the sibling read tools (cloud_plan_list, cloud_prices, cloud_packages) it depends on, distinguishing itself from them. Clear but slightly muddled by bilingual run-on phrasing.

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?

Explicitly prescribes the workflow: read the plan/price sources first, estimate, then ask for approval before creating. It also gives the mode-selection rule (monthly vs hourly sources). No explicit when-not-to-use case is given, but context is strong.

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