Minecraft Ops MCP

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

Annotations already provide key behavioral hints (readOnlyHint=false, destructiveHint=false, idempotentHint=false, openWorldHint=true). The description adds minimal context beyond this - it clarifies that the file created is 'empty', which isn't obvious from the tool name alone. However, it doesn't address important behavioral aspects like what happens if the file already exists, whether parent directories are created automatically, or permission requirements.

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 gets straight to the point. Every word contributes essential information - 'Create an empty file' specifies the action and outcome, 'in an MCSManager instance' provides the context. There's no wasted verbiage or redundant information.

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 that annotations cover safety aspects and there's an output schema (though not shown), the description is minimally adequate. However, for a file creation tool in a multi-instance system, it should ideally mention idempotency behavior (what happens on repeated calls), error conditions, or relationship to other file operations. The description meets basic requirements but leaves important contextual gaps.

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 description coverage, all parameters are already documented in the input schema. The description doesn't add any additional semantic context about parameters - it doesn't explain the relationship between daemonId and uuid, provide examples of valid target paths, or clarify when defaults apply. The baseline of 3 is appropriate when the 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 ('Create an empty file') and resource ('in an MCSManager instance'), making the purpose immediately understandable. However, it doesn't explicitly differentiate from sibling tools like 'file.write' or 'file.write_new' which might also create files, leaving some ambiguity about when this specific tool should be preferred.

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 'file.write' or 'file.write_new'. There's no mention of prerequisites, constraints, or typical use cases (e.g., creating placeholder files, testing permissions). The agent must infer usage from the tool name and context alone.

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