Commodore 64 Ultimate Computer 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 'Create' which implies a write/mutation operation, but doesn't cover permissions needed, side effects (e.g., overwriting existing files), error conditions, or output format. This leaves significant gaps for an agent to understand how to use it safely and effectively.

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, clear sentence with no wasted words. It's front-loaded with the core action and resource, making it easy to parse quickly. Every part of the sentence earns its place by conveying essential 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 the complexity of a disk creation tool with no annotations and no output schema, the description is insufficient. It doesn't explain what a D71 disk image is, how it differs from siblings, what happens after creation, or any behavioral traits. This leaves the agent with too many unknowns for a mutation operation.

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 both parameters (path and diskname) adequately. The description doesn't add any meaning beyond what's in the schema, such as explaining what a D71 disk image is or how parameters interact, but with high schema coverage, a baseline score of 3 is appropriate.

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') and resource ('new D71 disk image'), making the purpose immediately understandable. However, it doesn't differentiate from sibling tools like create_d64, create_d81, and create_dnp, which presumably create different disk image formats, so it misses the opportunity to clarify what distinguishes a D71 from other disk types.

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. With sibling tools like create_d64 and create_d81, it's unclear what scenarios call for a D71 disk image specifically, and there's no mention of prerequisites, dependencies, or common use cases.

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