mcp_opendaw_reverse_notes

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 usefully states that durations and velocities are preserved and that only positions are mirrored. It also notes the return value (count of notes reversed). However, it does not specify if the operation is destructive, reversible, or how it handles invalid inputs. Given the absence of annotations, this is adequate but not comprehensive.

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 relatively concise: four sentences plus a parameter list. The first sentence restates the name, but the following sentences add essential behavioral info. The structure is clear, with the parameter definitions separated. Could be slightly tighter by merging redundant statements, but overall well-organized.

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?

The tool has three parameters and no annotations. The description explains the parameters' meanings and the return value. However, it does not address edge cases, error handling, or prerequisites (e.g., does the region need to contain notes?). The output schema exists but the description covers the return value. Overall, it is adequately complete for a tool of this simplicity but leaves some 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?

The input schema has 0% description coverage (no descriptions in the schema itself), but the tool description provides meaningful explanations for all three parameters: unit_index, track_index, and region_index (with the special value -1 for all regions). This adds significant value beyond the raw schema, helping the agent understand the exact parameters and their roles.

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 tool reverses note order in a region ('Reverse the order of notes in a region — retrograde variation'). It specifies what is swapped (positions) and what is preserved (durations, velocities). While it does not explicitly differentiate from sibling tools like shuffle_notes or rotate_notes, the purpose is specific and unambiguous.

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 explains what the tool does but provides no guidance on when to use it versus alternatives. There is no mention of prerequisites, expected inputs, or scenarios where this tool is preferred over other note manipulation tools. The agent is left to infer usage context.

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