MetaMCP Admin MCP

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It fails to mention whether results are paginated, what authorization is required, the return format, or error conditions (e.g., invalid instance name).

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 single sentence is appropriately sized for a simple list operation and contains no redundant or wasted words. However, it is front-loaded with the essential information (List all namespaces), which is efficient.

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 low complexity (one optional parameter) and complete schema coverage, the description minimally suffices. However, with no output schema provided, it should ideally describe the return structure or list format, which it omits.

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?

With 100% schema coverage and only one parameter, the schema adequately documents the 'instance' parameter. The description adds no additional parameter context (such as default behavior when omitted), but baseline 3 is appropriate when the schema is fully self-documenting.

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 identifies the operation ('List') and resource ('namespaces'), and scopes it to a 'MetaMCP instance'. The plural 'all' implicitly distinguishes it from the sibling 'get_namespace' (singular), though it doesn't explicitly articulate this distinction.

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 provides no guidance on when to use this tool versus alternatives like 'get_namespace' (for specific retrieval) or 'list_instances'. There are no stated prerequisites, filters, or exclusions.

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