mcp_opendaw_load_effect_preset

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

With no annotations, the description carries full burden. It reveals internal details (reads bundle, decodes via PresetDecoder, inserts onto unit), which is helpful. However, it does not specify whether the insertion replaces or appends existing effects, or mention potential side effects like silencing the unit temporarily.

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 front-loaded with the core purpose, followed by internal detail and parameter explanations. It is structured logically, though it could be slightly more terse by removing the internal mechanism sentence.

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 an output schema exists (context signals indicate present), the description does not need to detail return values. It covers the essential functionality but could be improved by noting potential error conditions (e.g., invalid file path, incompatible preset format).

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 coverage is 0%, so the description must compensate. It does so by explaining both parameters: filepath is 'Path to the .opb preset bundle file' and unit_index is 'Target audio unit index. -1 = primary instrument unit.' This adds meaningful context beyond the schema's type/title.

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 ('load a .opb preset file' and 'apply it to an audio unit') and the resource (effect preset for audio unit). The tool name itself reinforces this, and the description distinguishes it from siblings by specifying the file format and target.

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 a specific usage hint for the unit_index parameter (use -1 for primary unit), but does not explicitly state when to use this tool versus alternatives like import_preset or replace_from_preset. No exclusions or comparative guidance is given.

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