AlibabaCloud DevOps MCP Server

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 states it's a list operation, implying read-only behavior, but doesn't clarify if it's paginated (hinted by parameters but not explicit), what the output format is (no output schema), or any limitations (e.g., rate limits, permissions required). The description lacks details on how results are structured or any side effects, which is a significant gap for a tool with no annotation coverage.

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 very concise—just one sentence with a bracketed context hint. It's front-loaded with the core action and resource, with no wasted words. However, the brevity comes at the cost of clarity and completeness, as it lacks necessary details for effective tool use.

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 the tool's complexity (a list operation with 4 parameters, no output schema, and no annotations), the description is incomplete. It doesn't explain the output format, pagination behavior (implied by parameters but not described), or how 'global variable groups' relate to other variable tools in the sibling list. Without annotations or an output schema, the description should provide more context to guide the agent effectively.

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 description coverage is 100%, so the schema fully documents all four parameters (organizationId, current, pageSize, search) with descriptions in Chinese. The description adds no additional parameter semantics beyond implying a searchable list, which doesn't compensate for or enhance the schema. This meets the baseline score of 3, as the schema handles the parameter documentation adequately.

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 the action ('List') and resource ('global variable groups'), which provides a basic understanding of purpose. However, it's vague about what 'global variable groups' are in this context (e.g., configuration variables, environment settings) and doesn't differentiate from sibling tools like 'get_global_var' (which likely retrieves a single variable) or 'get_app_variable_groups' (which might be application-specific). The bracketed '[application delivery]' adds some context but remains ambiguous.

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 offers no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'get_global_var' (for single variable retrieval) or 'get_app_variable_groups' (for application-specific variables), nor does it specify prerequisites such as needing organization access or typical use cases (e.g., auditing, configuration management). This leaves the agent to infer usage from the tool name alone.

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