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

Annotations already declare it non-read-only, idempotent and not destructive; the phrase "versioned edit" adds useful context implying the removal is recorded in an undoable edit history. However, it doesn't say what happens to the resulting gap in the timeline, whether the underlying asset is preserved, or what happens if the id is invalid.

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 well-formed sentence with the resource and scope front-loaded and no filler. It is arguably too terse given the remaining gaps, but nothing in it 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 two-parameter removal tool with annotations and no output schema, the description covers the action but omits how an agent obtains the required id (e.g., via list_music_library or project_state) and the effect on the surrounding edit. Adequate but with clear gaps.

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 50%: project_id is documented in the schema, while id has no description, and the phrase "an identified background-music item" only weakly implies that id names the music item. With coverage at the midpoint, the description neither compensates nor misleads.

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 ("Removes") and a specific resource ("background-music item") plus its scope ("from the versioned edit"). That distinguishes it from remove_sfx, remove_voiceover and remove_stem_mix by resource type, though it does not name those siblings explicitly.

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?

No when-to-use guidance at all. It doesn't say when to remove a music item versus swap_music, separate_music, or muting via set_audio_gain, nor does it state prerequisites such as the music needing to already exist in the edit.

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