set_track_color

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

No annotations are provided, so the description carries the full burden. It discloses the color index range (0-69) but does not mention error handling, whether the track must exist, zero vs one-based indexing, or any side effects beyond the color change. For a mutation tool, this is insufficient.

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?

Concise two-sentence description plus a clear parameter list. No unnecessary words. The operation is front-loaded.

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 two parameters and no output schema, the description covers the core. However, it lacks details on index base, error behavior, and track type applicability. No annotations mean the description alone must provide complete context, so it falls short.

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?

Both parameters are described: track_index as the track's index and color as an index into Ableton's palette (0-69). This adds meaning beyond the schema's bare integer types. However, it does not specify zero-based vs one-based indexing for track_index.

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?

Clearly states 'Set the color of a track' with a specific verb and resource. Distinguishes from sibling tools like set_clip_color and set_scene_color by specifying track. The color index range adds specificity.

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?

Usage is implied from the name and description: use when you need to change a track's color. No explicit when-to-use or alternative guidance is provided, nor does it distinguish from related tools like get_track_color or set_clip_color.

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