AlibabaCloud DevOps MCP Server

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

With no annotations provided, the description carries full burden but provides minimal behavioral insight. It states this is an update operation (implying mutation) but doesn't disclose permission requirements, whether changes are reversible, rate limits, or what happens to existing content not mentioned. The '[application delivery]' context is helpful but insufficient for a mutation tool.

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?

Extremely concise single sentence with zero waste. The description is front-loaded with the core action and resource, though it could benefit from more detail given the mutation nature.

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 mutation tool with 5 parameters, no annotations, and no output schema, the description is incomplete. It doesn't explain what 'update' entails (overwrite vs. merge), success/failure behavior, or return values. The '[application delivery]' context helps but doesn't compensate for missing behavioral details.

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 already documents all 5 parameters thoroughly. The description adds no additional parameter semantics beyond what's in the schema (organizationId, name, content array with key/value/description, fromRevisionSha, message). Baseline 3 is appropriate when schema does the heavy lifting.

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 the action ('Update') and resource ('global variable group') with the context domain '[application delivery]'. It distinguishes from sibling 'create_global_var' by specifying update vs. create, but doesn't differentiate from other update tools like 'update_variable_group' or 'update_app_variable_groups'.

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?

No explicit guidance on when to use this tool versus alternatives. The description doesn't mention prerequisites (e.g., existing variable group), when not to use it, or how it differs from similar update tools in the sibling list like 'update_variable_group'.

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