mrinkl.github.io WebMCP Tools, Schemas & Agent Capabilities

mrinkl.github.io

live Unverified (seed import) Media & Personal 15 tools imperative implementation

You play. Your agent arranges. A four-track loop sequencer that exposes its state as WebMCP tools, so ChatGPT or Chrome can add drums, chords and bass under what you just played — and ask your ears…

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 2 · Act 13 · Transact 0 · Score: Not yet scored

Tool inspector

set_drum_steps

act imperative

Set one drum lane to a 16-step pattern of X (accent), x (hit), o (ghost) and . (rest), for all or given bars. Use when the human wants to tweak one lane (more hats, kick on every beat, ghost snares); for a whole beat use add_drums. The pattern is exactly 16 characters. Visible in the grid immediately; the loop keeps playing; returns undo_id.

Page: /bandmate/

Input schema

Property	Type	Required	Description
`lane`	string	yes	Drum lane: kick, snare, clap, hat, openhat, perc.
`pattern`	string	yes	16 characters, one per 16th: X accent, x hit, o ghost, . rest (- and 0 rest, 1 hit). E.g. x.o.x.o.x.o.x.o.
`bars`	array	no	Bars to write, 1 to 4 (1 to 4 entries). Omit to write all four bars.

Raw JSON schema

{
  "type": "object",
  "properties": {
    "lane": {
      "type": "string",
      "enum": [
        "kick",
        "snare",
        "clap",
        "hat",
        "openhat",
        "perc"
      ],
      "description": "Drum lane: kick, snare, clap, hat, openhat, perc."
    },
    "pattern": {
      "type": "string",
      "minLength": 16,
      "maxLength": 16,
      "pattern": "^[Xxo.\\-01]{16}$",
      "description": "16 characters, one per 16th: X accent, x hit, o ghost, . rest (- and 0 rest, 1 hit). E.g. x.o.x.o.x.o.x.o."
    },
    "bars": {
      "type": "array",
      "description": "Bars to write, 1 to 4 (1 to 4 entries). Omit to write all four bars.",
      "minItems": 1,
      "maxItems": 4,
      "uniqueItems": true,
      "items": {
        "type": "integer",
        "minimum": 1,
        "maximum": 4,
        "description": "Bar number, 1 to 4."
      }
    }
  },
  "required": [
    "lane",
    "pattern"
  ],
  "additionalProperties": false
}

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