OSC 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. It discloses that the tool starts a server for testing, implying it's a setup/initialization operation, but lacks details on behavioral traits like whether it requires specific permissions, if it's idempotent, what happens on failure, or how to verify success. The description adds basic context but misses key operational details.

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, well-structured sentence that efficiently conveys the tool's purpose, method, and rationale without any wasted words. It is front-loaded with the core action and remains focused throughout.

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 has 0 parameters, no annotations, and no output schema, the description is complete in stating what the tool does and why. However, for a tool that starts a server, it lacks details on expected outcomes (e.g., success indicators, error handling) or integration with other tools (e.g., how to check status with 'osc_get_emulator_status'), leaving gaps in operational context.

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?

The input schema has 0 parameters with 100% coverage, so no parameter documentation is needed. The description does not mention any parameters, which is appropriate. A baseline of 4 is applied since the schema fully covers the absence of parameters, and the description does not add unnecessary information.

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 specific action ('Start'), the target resource ('local X32 emulator server'), and the implementation detail ('from the emulator/X32 binary'). It distinguishes itself from sibling tools like 'osc_stop_emulator' by specifying the opposite action, and from other tools that interact with a running mixer by focusing on server startup for testing purposes.

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 explicitly states when to use this tool: 'so you can test without a physical mixer', providing clear context for its purpose. However, it does not specify when not to use it (e.g., if the emulator is already running) or name alternatives (though sibling 'osc_stop_emulator' is implied as a counterpart).

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