add_mixer_track

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

With no annotations, the description carries the full behavioral burden. It does disclose the mutation, the default append behavior, and the return value, but it does not say whether existing inserts are shifted, whether the operation is undoable, or what prerequisites (e.g., selected channel) are required.

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?

Two tight clauses with no wasted words. The action is front-loaded and the placement rule and return value follow immediately.

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 one-parameter creation tool with no output schema, the description supplies enough to call it correctly: optional insertion index, default append behavior, and the returned id. Remaining gaps around side effects and prerequisites are minor given the tool's low 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 coverage is 0%, so the description must compensate for the lone `at` parameter. It adds useful meaning by identifying `at` as the insert number and stating that omission appends after the last insert. However, it leaves indexing base and valid range unspecified.

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 and resource: 'Add a mixer insert.' The parenthetical placement rule and return value make the operation concrete. It does not explicitly distinguish itself from the sibling set_mixer_track, but the add/set contrast is inferable.

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 explains where the insert goes but gives no guidance on when to use this tool versus set_mixer_track or route_mixer. There is no explicit alternative or exclusion, so an agent must infer usage from the tool name alone.

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