mcp_opendaw_set_device_label

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

With no annotations, the description carries full burden. It discloses the return behavior ('Returns success, or error') and explains MIDI vs audio targeting via is_midi_effect. However, it omits potential error conditions, side effects, or prerequisites like the existence of the device chain.

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 concise and well-structured: action first, then parameter definitions, then return value. No unnecessary filler or redundancy.

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?

For a simple rename operation, the description covers all inputs and the return value. It could improve by specifying how to obtain indices (e.g., via list_effects) or clarifying zero-based indexing, but it is largely complete for the task.

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%, and the description compensates fully by explaining all four parameters: unit_index, effect_index, label, and is_midi_effect, including the default behavior for MIDI effects. This adds meaningful context beyond bare parameter names.

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 'Rename an effect or MIDI effect device,' identifying the action and target. It distinguishes this tool from siblings like set_region_label or set_bus_label by focusing on device labels.

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?

There is no explicit guidance on when to use this tool versus alternatives like rename_unit or set_bus_label. The tool's purpose is clear, but no alternatives, prerequisites, or exclusions are mentioned.

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