ReaMCP

Instructions

Implementation Reference

• src/reaper_mcp/server.py:517-535 (handler)

  The MCP tool registration and handler implementation for set_fx_param in the MCP server.

  @mcp.tool()
  def set_fx_param(
      track_index: int,
      fx_index: int,
      param_index: int,
      normalized_value: float,
  ) -> dict[str, Any]:
      """Set an FX parameter by normalized value (0.0–1.0)."""
      try:
          return _wrap(
              adapter.set_fx_param(
                  track_index=track_index,
                  fx_index=fx_index,
                  param_index=param_index,
                  normalized_value=normalized_value,
              )
          )
      except Exception as exc:
          return _err(exc)

• src/reaper_mcp/reaper_adapter.py:293-306 (helper)

  Adapter method that forwards the set_fx_param request to the underlying REAPER client.

  def set_fx_param(
      self,
      track_index: int,
      fx_index: int,
      param_index: int,
      normalized_value: float,
  ) -> dict[str, Any]:
      return self._client.call(
          "set_fx_param",
          track_index=track_index,
          fx_index=fx_index,
          param_index=param_index,
          normalized_value=normalized_value,
      )