mcp_opendaw_set_marker_label

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

No annotations are provided. The description only states the operation is a rename, without disclosing side effects, error behavior on invalid indices, or whether changes are persistent. As a mutation tool with no annotations, the burden falls on the description, which remains minimal.

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 well-structured: one summary line followed by bullet-style parameter explanations, no filler.

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 two-parameter rename tool with an output schema present, the description covers the core workflow. It does not address error cases (e.g., invalid index) but is adequate given the tool's simplicity.

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%, but the description compensates by explaining marker_index is obtained from list_markers and is 0-based, and label is the new text. This adds meaning beyond the bare schema.

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 uses 'Rename a timeline marker' – a specific verb and resource that clearly distinguishes from sibling marker tools like add_marker, delete_marker, and set_marker_position. It is direct 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 provides a usage hint via 'marker_index: Index from list_markers (0-based)', implying the index should come from list_markers, but it does not explicitly state when to prefer this over alternatives or provide exclusions. Basic workflow hint but no explicit guidance.

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