set_arrangement_clip_name

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

Annotations already declare readOnlyHint=false, destructiveHint=false, and openWorldHint=false, so the basic mutation/safety profile is covered. The description adds a non-trivial behavioral detail by flagging that user_prompt is captured for telemetry, but it says nothing about invalid index handling, whether renaming is reversible, or persistence into the Live set.

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?

A single front-loaded sentence states the action, followed by a compact per-parameter list with no filler. The formatting matches the parameter order the caller needs, though the multi-line continuation on clip_index is slightly awkward rather than wasteful.

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?

An output schema exists, so return values need not be described, and all four parameters are explained including the ordering semantics that a 0%-coverage schema leaves undefined. The remaining gap is behavioral failure modes for out-of-range indices, which matters for an index-addressed mutation.

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?

With 0% schema description coverage, the description carries the full burden and mostly succeeds: it defines track_index and clip_index in terms of Live's object model and, critically, specifies that clip_index follows the same order returned by get_arrangement_clips (sorted by start_time). The name and user_prompt glosses are thinner, but the ordering caveat is the one that prevents real invocation errors.

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 opens with a specific verb+resource: setting the name of a clip in the Arrangement timeline, which implicitly separates it from the session-view sibling set_clip_name. It stops short of naming that sibling explicitly, so the differentiation relies on the agent knowing what 'Arrangement' means in this toolset.

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 context is implied by the Arrangement-timeline scope and strengthened by the pointer to get_arrangement_clips for index ordering, which tells the agent the correct discovery sequence. There is no explicit when-not guidance (e.g., use set_clip_name for session clips) and no statement of preconditions such as the clip already existing.

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