Embedded Code Snippet 

{
    "title": "Rumi LTI 1.3",
    "scopes": [
        "https://purl.imsglobal.org/spec/lti-ags/scope/lineitem",
        "https://purl.imsglobal.org/spec/lti-ags/scope/lineitem.readonly",
        "https://purl.imsglobal.org/spec/lti-ags/scope/result.readonly",
        "https://purl.imsglobal.org/spec/lti-ags/scope/score",
        "https://purl.imsglobal.org/spec/lti-nrps/scope/contextmembership.readonly",
        "https://canvas.instructure.com/lti/public_jwk/scope/update",
        "https://canvas.instructure.com/lti-ags/progress/scope/show",
        "https://canvas.instructure.com/lti/account_lookup/scope/show"
    ],
    "extensions": [
        {
            "domain": "app.rumiessay.com",
            "tool_id": "Rumi LTI",
            "platform": "canvas.instructure.com",
            "settings": {
                "text": "Rumi Assignment LTI",
                "icon_url": "https://rumi-public-files.s3.us-west-2.amazonaws.com/assets/Rumi+Logo.png",
                "platform": "canvas.instructure.com",
                "placements": [
                    {
                        "text": "Rumi Assignment LTI",
                        "placement": "assignment_selection",
                        "message_type": "LtiResourceLinkRequest",
                        "selection_width": 1200,
                        "target_link_uri": "https://app.rumiessay.com/api/lti1p3/login",
                        "selection_height": 1000
                    }
                ]
            },
            "privacy_level": "public"
        }
    ],
    "public_jwk": {},
    "description": "Rumi LTI 1.3 Integration",
    "custom_fields": {
        "user_id": "$Canvas.user.id",
        "course_id": "$Canvas.course.id",
        "assignment_id": "$Canvas.assignment.id",
        "group_ids": "$com.instructure.Course.groupIds"
    },
    "public_jwk_url": "https://app.rumiessay.com/api/lti1p3/jwks",
    "target_link_uri": "https://app.rumiessay.com/api/lti1p3/launch",
    "oidc_initiation_url": "https://app.rumiessay.com/api/lti1p3/login"
}