set_arrangement_clip_properties

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

With no annotations, the description carries the full behavioral burden and does well: it discloses the mutation scope (one clip), undo granularity (one Live undo step), and readback verification. It omits permission/auth requirements and what readback actually returns on failure, leaving a modest gap for a mutation tool.

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?

Well front-loaded (purpose first, then side effects, example, edge cases) and every block adds distinct information. Slightly dense with four labeled sections for a single-clip mutator, but no sentence is wasted.

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 mutation tool with no annotations and no output schema, the description covers side effects, an example, index-instability caveats, and the 'verified by readback' return contract. The remaining gaps (track_index meaning, failure modes) are minor.

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 coverage is 0%, so the description must compensate and only partly does: it clarifies clip_index semantics (indexes Track.arrangement_clips, shifts after structural changes) and the 'at least one of name/muted' rule, plus the example implies argument order. It never explains track_index or what name/muted values mean beyond the obvious.

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?

States a specific verb pair (rename/mute) and a precisely scoped resource (one Arrangement clip), and the 'Arrangement' qualifier distinguishes it from session-clip siblings like set_clip_properties. An agent can identify the operation and its target without opening the schema.

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 worked example ('unmutes a clip that was silenced by hand') gives a concrete usage context, and the edge-case note establishes the precondition of supplying at least one of name/muted. However, it never explicitly routes the agent to or away from an alternative tool, so no exclusions are stated.

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