rename_track

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

No annotations are present, so the description carries the full burden. It adds valuable behavioral context by explaining the 0-based vs 1-based indexing discrepancy between the API and REAPER UI. However, it does not address error handling (e.g., invalid track_index) or potential side effects beyond the rename itself.

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 appropriately sized: a one-line summary followed by a structured Args block. Every sentence serves a purpose with no redundancy or filler. The layout is clear 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?

Given the tool's simplicity (rename operation) and the presence of an output schema, the description covers the essential aspects: purpose, parameter semantics, and the key indexing nuance. It could be improved by adding usage alternatives or notes on error behavior, but it is largely complete for a tool of this complexity.

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 compensates with detailed parameter explanations. The track_index parameter is thoroughly described, including the UI mapping, while new_name is given a brief but adequate description. This goes well beyond the schema's basic type definitions.

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 'Rename an existing track' with a specific verb and resource. This distinguishes it from sibling tools like create_track and set_track_color, making its purpose 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 implies usage for renaming existing tracks via the phrase 'existing track', but it does not explicitly discuss when to use this tool versus alternatives or mention any exclusions. The sibling list includes other track operations, but no comparative guidance is provided.

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