{
  "$schema": "./catalog.schema.json",
  "schemaVersion": 2,
  "diagnostics": [
    {
      "code": "MN0001",
      "slug": "view-el-must-be-dom-element",
      "status": "retired",
      "category": "dom",
      "severity": "error",
      "objects": [
        "CollectionView",
        "View"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0001/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "view"
    },
    {
      "code": "MN0002",
      "slug": "region-el-type-invalid",
      "status": "retired",
      "category": "dom",
      "severity": "error",
      "objects": [
        "Region"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0002/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "region"
    },
    {
      "code": "MN0003",
      "slug": "view-already-owned",
      "status": "active",
      "category": "ownership",
      "severity": "error",
      "objects": [
        "CollectionView",
        "Region",
        "View"
      ],
      "remediation": "Detach or remove the view from its current Region or CollectionView before showing it elsewhere, or create a new view instance.",
      "docsAnchor": "/errors/MN0003/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "ownership"
    },
    {
      "code": "MN0004",
      "slug": "region-el-required",
      "status": "active",
      "category": "dom",
      "severity": "error",
      "objects": [
        "Region"
      ],
      "remediation": "Configure the Region with an el selector or DOM element before using it.",
      "docsAnchor": "/errors/MN0004/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "region"
    },
    {
      "code": "MN0005",
      "slug": "region-el-not-found",
      "status": "active",
      "category": "dom",
      "severity": "error",
      "objects": [
        "Region"
      ],
      "remediation": "Render the parent View before direct selector-backed Region operations, ensure the selector resolves within its parent element, or explicitly allow a missing element where supported.",
      "docsAnchor": "/errors/MN0005/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "region"
    },
    {
      "code": "MN0006",
      "slug": "region-view-required",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Region"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0006/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "region"
    },
    {
      "code": "MN0007",
      "slug": "region-view-destroyed",
      "status": "active",
      "category": "lifecycle",
      "severity": "error",
      "objects": [
        "Region",
        "View"
      ],
      "remediation": "Create a new View instance instead of attempting to show a destroyed view.",
      "docsAnchor": "/errors/MN0007/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "lifecycle"
    },
    {
      "code": "MN0008",
      "slug": "region-definition-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Application",
        "Region",
        "View"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0008/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "region"
    },
    {
      "code": "MN0009",
      "slug": "event-bindings-invalid",
      "status": "retired",
      "category": "communication",
      "severity": "error",
      "objects": [
        "Application",
        "Behavior",
        "CollectionView",
        "MnObject",
        "Region",
        "View"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0009/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "communication"
    },
    {
      "code": "MN0010",
      "slug": "request-bindings-invalid",
      "status": "retired",
      "category": "communication",
      "severity": "error",
      "objects": [
        "Application",
        "Behavior",
        "CollectionView",
        "MnObject",
        "Region",
        "View"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0010/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "communication"
    },
    {
      "code": "MN0011",
      "slug": "collection-view-child-view-required",
      "status": "active",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Configure childView with a View class or a function that returns a View class.",
      "docsAnchor": "/errors/MN0011/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0012",
      "slug": "collection-view-child-view-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0012/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0013",
      "slug": "collection-view-container-not-found",
      "status": "active",
      "category": "dom",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Ensure childViewContainer resolves to an element within the rendered CollectionView.",
      "docsAnchor": "/errors/MN0013/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0014",
      "slug": "collection-view-filter-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0014/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0015",
      "slug": "collection-view-swap-non-children",
      "status": "active",
      "category": "ownership",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Pass two views currently owned by the CollectionView to swapChildViews.",
      "docsAnchor": "/errors/MN0015/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0016",
      "slug": "behavior-definition-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Behavior",
        "CollectionView",
        "View"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0016/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "behavior"
    },
    {
      "code": "MN0017",
      "slug": "radio-channel-name-required",
      "status": "active",
      "category": "communication",
      "severity": "error",
      "objects": [
        "Radio"
      ],
      "remediation": "Pass a non-empty channel name when creating or accessing a Radio channel.",
      "docsAnchor": "/errors/MN0017/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "communication"
    },
    {
      "code": "MN0018",
      "slug": "ui-reference-invalid",
      "status": "active",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Behavior",
        "CollectionView",
        "View"
      ],
      "remediation": "Use @ui.<name> with a non-empty own key whose value is a string selector, or replace the reference with a literal selector.",
      "docsAnchor": "/errors/MN0018/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "view"
    },
    {
      "code": "MN0019",
      "slug": "handler-not-callable",
      "status": "active",
      "category": "communication",
      "severity": "error",
      "objects": [
        "Application",
        "Behavior",
        "CollectionView",
        "MnObject",
        "Region",
        "View"
      ],
      "remediation": "Provide a function or the string name of a callable method on the binding context.",
      "docsAnchor": "/errors/MN0019/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "communication"
    },
    {
      "code": "MN0020",
      "slug": "named-region-not-found",
      "status": "active",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "View"
      ],
      "remediation": "Define the named Region before using child-View or Region-removal operations, or use getRegion or hasRegion for optional lookup.",
      "docsAnchor": "/errors/MN0020/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "region"
    },
    {
      "code": "MN0021",
      "slug": "radio-channel-not-found",
      "status": "active",
      "category": "communication",
      "severity": "error",
      "objects": [
        "Radio"
      ],
      "remediation": "Create the named channel with Radio.channel(name) before resetting it, or call Radio.reset() with no arguments to reset all existing channels.",
      "docsAnchor": "/errors/MN0021/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "communication"
    },
    {
      "code": "MN0022",
      "slug": "collection-view-empty-view-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0022/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0023",
      "slug": "ui-elements-unavailable",
      "status": "active",
      "category": "lifecycle",
      "severity": "error",
      "objects": [
        "Behavior",
        "CollectionView",
        "View"
      ],
      "remediation": "Declare a ui map, then render the View or explicitly bind its UI elements before calling getUI; bind them again before calling getUI after unbinding.",
      "docsAnchor": "/errors/MN0023/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "view"
    },
    {
      "code": "MN0024",
      "slug": "child-container-argument-invalid",
      "status": "active",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Pass nonnegative integer counts. Reducing an empty child container requires an initial value.",
      "docsAnchor": "/errors/MN0024/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0025",
      "slug": "child-container-method-not-callable",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0025/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    },
    {
      "code": "MN0026",
      "slug": "entity-event-name-unsafe",
      "status": "active",
      "category": "communication",
      "severity": "error",
      "objects": [
        "Application",
        "Behavior",
        "CollectionView",
        "MnObject",
        "Region",
        "View"
      ],
      "remediation": "Rename an own __proto__ entry in an entity-event map before binding or selectively unbinding it.",
      "docsAnchor": "/errors/MN0026/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "communication"
    },
    {
      "code": "MN0027",
      "slug": "feature-name-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Behavior",
        "CollectionView",
        "View"
      ],
      "remediation": "The v5 feature registry is removed. Configure child event prefixes per View, trigger behavior per trigger, and application values through State or explicit configuration.",
      "docsAnchor": "/errors/MN0027/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "view"
    },
    {
      "code": "MN0028",
      "slug": "region-destroyed-operation",
      "status": "retired",
      "category": "lifecycle",
      "severity": "error",
      "objects": [
        "Region"
      ],
      "remediation": "Calls to show, empty, or reset after Region destruction are lifecycle-safe no-ops. Use a live Region when the operation must take effect.",
      "docsAnchor": "/errors/MN0028/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "region"
    },
    {
      "code": "MN0029",
      "slug": "view-destroyed-set-element",
      "status": "retired",
      "category": "lifecycle",
      "severity": "error",
      "objects": [
        "CollectionView",
        "View"
      ],
      "remediation": "Calls to setElement after View or CollectionView destruction begins are lifecycle-safe no-ops. Use a live instance when element replacement must take effect.",
      "docsAnchor": "/errors/MN0029/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "view"
    },
    {
      "code": "MN0030",
      "slug": "region-registration-conflict",
      "status": "active",
      "category": "ownership",
      "severity": "error",
      "objects": [
        "Region",
        "View"
      ],
      "remediation": "Register a live, unowned Region under an unused name; remove an existing named Region before replacing it and use a fresh Region instance for a different owner.",
      "docsAnchor": "/errors/MN0030/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "ownership"
    },
    {
      "code": "MN0031",
      "slug": "application-registration-conflict",
      "status": "active",
      "category": "ownership",
      "severity": "error",
      "objects": [
        "Application"
      ],
      "remediation": "Register a live, unowned Application instance under an unused non-empty string name; use hasChildApp before constructing a dynamic child when allocation must be avoided.",
      "docsAnchor": "/errors/MN0031/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "ownership"
    },
    {
      "code": "MN0032",
      "slug": "region-name-invalid",
      "status": "active",
      "category": "ownership",
      "severity": "error",
      "objects": [
        "View"
      ],
      "remediation": "Pass a non-empty string name to a named Region operation.",
      "docsAnchor": "/errors/MN0032/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "ownership"
    },
    {
      "code": "MN0033",
      "slug": "merge-options-keys-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Application",
        "Behavior",
        "CollectionView",
        "MnObject",
        "Region",
        "View"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0033/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "view"
    },
    {
      "code": "MN0034",
      "slug": "state-key-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "StateApi"
      ],
      "remediation": "The concrete v5 alpha State key validation is removed. Use the selected source's native key contract.",
      "docsAnchor": "/errors/MN0034/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "state"
    },
    {
      "code": "MN0035",
      "slug": "state-ownership-conflict",
      "status": "retired",
      "category": "ownership",
      "severity": "error",
      "objects": [
        "Behavior",
        "CollectionView",
        "MnObject",
        "View"
      ],
      "remediation": "The concrete v5 alpha State ownership rule is removed. Supplied sources are borrowed and may be shared by multiple owners; createState results are owned and disposed by their owner.",
      "docsAnchor": "/errors/MN0035/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "ownership"
    },
    {
      "code": "MN0036",
      "slug": "event-delegator-contract-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Behavior",
        "CollectionView",
        "View"
      ],
      "remediation": "Use the documented argument types. Marionette no longer emits a dedicated runtime diagnostic for this unsupported input shape.",
      "docsAnchor": "/errors/MN0036/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "cleanup"
    },
    {
      "code": "MN0037",
      "slug": "adapter-observation-unsupported",
      "status": "active",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Application",
        "Behavior",
        "CollectionView",
        "MnObject",
        "View"
      ],
      "remediation": "Configure a StateApi or DataApi that can observe the selected source, or remove the declarative event map.",
      "docsAnchor": "/errors/MN0037/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "state"
    },
    {
      "code": "MN0038",
      "slug": "adapter-cleanup-invalid",
      "status": "retired",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "Application",
        "Behavior",
        "CollectionView",
        "MnObject",
        "View"
      ],
      "remediation": "DataApi and StateApi adapters must return cleanup functions. Core no longer wraps or validates cleanup on each registration.",
      "docsAnchor": "/errors/MN0038/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "cleanup"
    },
    {
      "code": "MN0039",
      "slug": "collection-data-contract-invalid",
      "status": "active",
      "category": "configuration",
      "severity": "error",
      "objects": [
        "CollectionView"
      ],
      "remediation": "Return an ordered array with unique stable keys and emit a valid reorder, reset, or update structural record.",
      "docsAnchor": "/errors/MN0039/",
      "surfaces": [
        "runtime"
      ],
      "benchmarkCategory": "collection-view"
    }
  ]
}