mcp_opendaw_get_region_info

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

The annotation 'readOnlyHint: true' is consistent with the description. The description adds value by stating that the tool returns metadata and type-specific info (notes count, audio file, automation events). This provides useful behavioral context beyond the annotation.

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: one sentence for the purpose, then a brief parameter list. It is front-loaded with the key information and contains no redundant or vague statements.

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, the description appropriately focuses on input parameters and high-level return info. It mentions type-specific details, which is sufficient for an agent to understand what the tool provides. Could potentially mention that it returns detailed region metadata, but overall it is complete.

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 schema has no descriptions (0% coverage), so the description compensates by explaining each parameter (e.g., 'track_index: Track index within the AU'). This adds meaning beyond the schema's titles, helping an agent correctly specify the target region.

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 ('Get detailed info about a single region') and lists the specific attributes returned (position, duration, loop, mute, content). It distinguishes itself from sibling tools like 'get_track_info' and 'list_notes' by focusing on a single region.

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 each parameter's role (unit_index, track_index, region_index), providing context on how to use the tool. However, it lacks explicit guidance on when to use this tool versus alternatives (e.g., listing all regions). The purpose is clear enough that an agent can infer usage for retrieving specific region info.

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