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AbletonMCP

AbletonMCP

by juampicosta
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

quantize_clip

Quantize MIDI notes to a target grid, controlling the snap strength from slight correction to full alignment.

Instructions

Quantize MIDI notes in a clip. quantize_to: target grid in beats (0.0625=64th, 0.125=32nd, 0.25=16th, 0.5=8th, 1.0=quarter) amount: 0.0=no quantize (original), 1.0=full snap to grid, 0.5=halfway

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "track_index": "<track_index>",
      "slot_index": "<slot_index>"
    },
    "name": "quantize_clip"
  }
}

Input Schema

NameRequiredDescriptionDefault
track_indexYes
slot_indexYes
quantize_toNo
amountNo

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.8/5.0
Behavior2/5

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

No annotations provided, and description only explains parameters. Does not disclose side effects (e.g., destructive nature, undo availability, or impact on existing notes) beyond implying mutation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Description is short and front-loaded with the purpose, followed by parameter details. Each sentence serves a clear function with no extraneous text.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Lacks essential context: no explanation for 'track_index' and 'slot_index', no mention of input validation (e.g., track must be MIDI), and no description of return value despite existing output schema. Insufficient for a tool with 4 parameters and no annotations.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%. Description explains 'quantize_to' and 'amount' with example values, but omits explanation for required parameters 'track_index' and 'slot_index', which are critical for targeting the clip.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states 'Quantize MIDI notes in a clip', identifying the action and resource. It distinguishes from siblings like 'set_clip_quantization' by focusing on per-note quantization, though not explicitly differentiating.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives such as 'set_clip_quantization' or 'add_notes'. Does not indicate prerequisites or context for effective use.

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

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