mcp_opendaw_set_loop_region

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

No annotations are provided, so the description carries the full behavioral burden. It discloses the core behavior (loops when enabled, region kept but inactive when disabled), which is useful for predicting side effects. It does not address edge cases such as invalid beat ordering, transport state dependencies, or whether enabling the loop affects the current playhead position.

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 compact and front-loaded with the main action, followed by behavioral details and per-parameter definitions. Every line serves a purpose, with no filler or redundant restatement of the schema titles.

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 setter with an output schema, this description is largely complete: it covers the operation, enable/disable behavior, and parameter semantics. It lacks prerequisites or transport interactions, but these are not critical for such a focused loop-setting tool.

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%, so the description fully compensates by defining each parameter: 'from_beat: Loop start in beats,' 'to_beat: Loop end in beats,' and 'enabled: Whether loop is active.' It adds meaning beyond the bare integer/boolean types, though it omits details like inclusive/exclusive bounds or valid ranges.

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 begins with a clear, specific action: 'Set the playback loop region.' It then explains the behavior with enabled/disabled states, making the tool's function unambiguous. However, it does not explicitly distinguish this from the similarly named sibling mcp_opendaw_set_region_loop, so it stops short of a perfect 5.

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 implies when to use this tool: when you need to configure playback looping between two beats, and it explains how to disable the loop. It does not, however, provide explicit 'when not to use' guidance or mention alternative tools like mcp_opendaw_set_region_loop for per-region looping, leaving usage context inferred rather than stated.

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