track_fx_add_by_name

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

No annotations are provided, so the description carries the full behavioral burden. It does disclose return content (added FX plus its index) and the insertion-position default, which is real behavioral context. It is silent, though, on error behavior when the name does not match, undo/state effects, and whether the track must exist.

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?

Front-loaded with a single-sentence summary, then clearly separated Args and Returns blocks. The Args/Returns scaffolding is slightly heavier than needed for three parameters, but nothing is redundant or padded.

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?

There is no output schema, and the description does cover the return shape, so that need is met. With no annotations and an undocumented track_index, however, an agent still lacks confirmation on failure modes and track targeting, leaving the definition adequate but not fully self-sufficient.

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 it does for two of three params: fx_name gets concrete examples and an exact-match rule, and position gets 0-based indexing, the -1 default, and boundary semantics (0 = beginning). track_index is left undocumented in both schema and description, which is the only gap.

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 an FX plugin to a track') and the 'by name' qualifier signals the identification method. The 'track' scope implicitly distinguishes it from the sibling take_fx_add_by_name, though no sibling is named 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?

Offers an in-context tip ('use the exact plugin name as it appears in REAPER's FX browser'), which is genuinely useful for invocation. However, it gives no guidance on when to prefer this over higher-level siblings like add_eq, add_compressor, or add_limiter, and no exclusions or prerequisites are stated.

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