mcp_opendaw_set_region_loop

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

No annotations are provided, so the description must disclose behavior. It explains that loop_beats=0 disables the loop and describes how offsets shift loop/event positions, adding valuable operational detail. It does not, however, cover potential side effects, idempotency, or error conditions.

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?

Purpose is stated in the first sentence, with subsequent lines dedicated to behavioral clarification and parameter meanings. Each line serves a distinct purpose; the structure is efficient and easy to scan.

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?

Output schema exists, so return values are covered elsewhere. The description documents all six required parameters and explains loop semantics, making it self-contained for invocation. Minor gaps like how to obtain indices or what happens to existing loop settings are acceptable given the schema.

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?

All six parameters receive semantic explanation beyond the bare schema titles: loop_beats includes a concrete example (4.0 = 1 bar in 4/4), unit_index documents the -1 sentinel, and region_index notes 0-based indexing. This fully compensates for the 0% schema_description_coverage.

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?

States 'Set loop parameters for a note region' with a specific verb and resource, followed by behavioral explanation of looping. However, it does not differentiate from similarly named sibling tools like mcp_opendaw_set_loop_region or mcp_opendaw_set_region_duration.

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?

Provides contextual detail about loop behavior and region duration but offers no explicit guidance on when to choose this tool over alternatives. No exclusions or alternative tool references are mentioned, so it's implied rather than explicit.

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