mixx_effects

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

No annotations are provided, so the description carries the full disclosure burden. It reveals destructive-looking operations like chain_clear only by name and never states side effects, reversibility, persistence across sessions, or whether live playback is disrupted — meaningful gaps for a mutation-heavy control surface.

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?

The description is header-segmented (operations, returns, examples) and front-loaded with the scope statement before the detail. It is slightly longer than necessary — the "PORTMANTEAU PATTERN" line and the Returns section add little — but there is no real filler.

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 not explaining return values is acceptable, and the operation/example coverage makes invocation possible. Given seven mutating operations and zero annotations, though, the absence of any side-effect or state-safety information leaves the definition short of complete.

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 partially does: it maps parameters to operations and gives the value range for meta_set (0.0-1.0) plus three worked examples. It still never explains rack vs unit semantics, the default rack/unit=1, the meaning of the parameter index, or deck selection, leaving several of the eight parameters opaque.

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 concrete verb+resource ("Effect chain control for Mixxx") and enumerates the seven supported operations, so an agent immediately knows the domain is effect racks/units/chains. It does not, however, explicitly distinguish itself from siblings like mixx_deck or mixx_mixer, which also touch deck-level state.

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 operation list implies which call to make for a given task and flags required arguments per operation (e.g. "requires effect", "requires deck, effect"), which is useful routing within the tool. But there is no guidance on when to prefer this tool over siblings or when an operation is inappropriate, so usage remains implied rather than stated.

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