mcp-qemu-lab

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 mentions the action ('dump') and mechanism ('via QMP'), but lacks details on permissions required, whether it's destructive (e.g., pauses the VM), rate limits, or what the output artifact entails (e.g., file format, location). This is inadequate for a tool that likely involves significant system interaction.

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 a single, efficient sentence that front-loads the core action without unnecessary words. It earns its place by conveying the essential operation, though it could benefit from additional context without sacrificing brevity.

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 complexity of memory dumping (likely a high-impact operation), no annotations, and 0% schema coverage, the description is incomplete. However, the presence of an output schema mitigates some gaps by presumably documenting return values, but key behavioral and parametric details are missing, making it minimally viable but with clear deficiencies.

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 0%, so the description must compensate by explaining parameters, but it adds no semantic information beyond what's inferred from the tool name. Parameters like 'vm_id', 'output_label', 'compress', and 'timeout_sec' are undocumented in both schema and description, leaving their purposes and effects unclear.

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 ('dump full guest memory') and the target ('to a host artifact file via QMP'), making the purpose understandable. However, it doesn't explicitly differentiate from sibling tools like 'process_dump_core' or 'vm_snapshot_save', which might involve similar memory or state operations, leaving some ambiguity about when to choose this specific tool.

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 guidance is provided on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., VM must be running), exclusions (e.g., not for live debugging), or compare to siblings like 'process_dump_core' for process-level dumps or 'vm_snapshot_save' for state preservation, leaving the agent without context for selection.

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