{"slug":"managedcode-maui-collectionview","name":"maui-collectionview","description":"Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding).","long_description":"---\nname: maui-collectionview\ndescription: >\n  Guidance for implementing CollectionView in .NET MAUI apps — data display,\n  layouts (list & grid), selection, grouping, scrolling, empty views, templates,\n  incremental loading, swipe actions, and pull-to-refresh.\n  USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\",\n  \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\",\n  \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\",\n  displaying scrollable data, replacing ListView.\n  DO NOT USE FOR: simple static layouts without scrollable data (use Grid or\n  StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based\n  data entry forms, non-MAUI list controls, CarouselView or BindableLayout\n  questions, platform-specific handler or renderer customization, diagnosing\n  CollectionView bugs in the MAUI framework itself, or general MVVM/binding\n  questions that merely happen to mention a list (use maui-data-binding).\nlicense: MIT\n---\n\n# CollectionView — .NET MAUI\n\n`CollectionView` is the primary control for displaying scrollable lists and grids of data in .NET MAUI. It replaces `ListView` with better performance, flexible layouts, and no `ViewCell` requirement.\n\n## When to Use\n\n- Displaying a scrollable list or grid of data items\n- Binding a collection of objects to a templated item layout\n- Adding selection (single or multiple), grouping, or pull-to-refresh\n- Implementing infinite scroll / incremental loading\n- Showing swipe actions on list items\n- Displaying an empty state when no data is available\n\n## When Not to Use\n\n- Static layouts with a fixed number of items — use `Grid` or `StackLayout` directly\n- Map pin lists — use the `Microsoft.Maui.Controls.Maps` NuGet package\n- Table-based data entry forms — use standard form controls\n- Simple text-only lists with no interaction — consider `BindableLayout` on a `StackLayout`\n\n## Scope Control — Answer Only What Was Asked\n\nThis skill is a **reference you consult**, not a checklist you apply. Most requests\nneed one or two sections from it. Pulling in the rest makes the answer worse.\n\n**Stop conditions — do NOT act when:**\n\n- **The user asked a narrow question.** Answer that question only. Do not append\n  grouping, swipe actions, empty views, snap points, or performance tips that\n  were not asked about.\n- **The user's existing code already works.** Do not rewrite working markup to\n  match the examples here. Point out a concrete defect; if there is none, say so\n  and answer the question that was asked.\n- **The change is stylistic.** Renaming, reordering attributes, or restructuring\n  a template that already behaves correctly is churn, not a fix.\n- **The control isn't `CollectionView`.** `CarouselView`, `BindableLayout`, and\n  `ListView`-in-maintenance code have different rules. Do not rewrite `ListView`\n  code the user did not ask about — but if they ask *which* control to use, or are\n  migrating from Xamarin.Forms, recommend `CollectionView` (see\n  [Migrating from ListView](#migrating-from-listview)).\n- **The problem is really a binding, DI, or navigation problem** that happens to\n  involve a list — defer to `maui-data-binding`, `maui-dependency-injection`, or\n  `maui-shell-navigation`.\n\n**The API sections below are a reference, not a checklist — offer them only when\nrelevant.** Four rules are non-negotiable, because violating them produces code that\ndoes not work or silently loses compile-time checking:\n\n1. Never use `ViewCell` as a `DataTemplate` root in `CollectionView`.\n2. Use `ObservableCollection<T>` when the list mutates after first render.\n3. Mutate the bound collection on the UI thread.\n4. Set `x:DataType` on every `DataTemplate` (and on the page root) for compiled bindings.\n\nEverything else — sizing strategy, snap points, header/footer, empty views — is\noptional and should be offered only when it addresses the user's actual problem.\n\n## Inputs\n\n- A data source (typically `ObservableCollection<T>`) bound to `ItemsSource`\n- A `DataTemplate` defining how each item renders\n- Optional: layout configuration, selection mode, grouping model, empty view\n\n## Basic Setup\n\nA complete, copy-pasteable page. Two things are load-bearing: the `xmlns:models`\ndeclaration that every `x:DataType=\"models:Item\"` in this skill assumes, and the\n**root `x:DataType`** — without it the outer `ItemsSource` binding is not compiled:\n\n```xml\n<ContentPage xmlns=\"http://schemas.microsoft.com/dotnet/2021/maui\"\n             xmlns:x=\"http://schemas.microsoft.com/winfx/2009/xaml\"\n             xmlns:models=\"clr-namespace:MyApp.Models\"\n             xmlns:vm=\"clr-namespace:MyApp.ViewModels\"\n             x:DataType=\"vm:ItemsViewModel\"\n             x:Class=\"MyApp.ItemsPage\">\n    <ContentPage.BindingContext>\n        <vm:ItemsViewModel />\n    </ContentPage.BindingContext>\n    <CollectionView ItemsSource=\"{Binding Items}\">\n        <CollectionView.ItemTemplate>\n            <DataTemplate x:DataType=\"models:Item\">\n                <HorizontalStackLayout Padding=\"8\" Spacing=\"8\">\n                    <Image Source=\"{Binding Icon}\" WidthRequest=\"40\" HeightRequest=\"40\" />\n                    <Label Text=\"{Binding Name}\" VerticalOptions=\"Center\" />\n                </HorizontalStackLayout>\n            </DataTemplate>\n        </CollectionView.ItemTemplate>\n    </CollectionView>\n</ContentPage>\n```\n\nLater snippets show only the `CollectionView` element. When you hand a snippet to a\nuser, include the matching `xmlns:` declaration for any prefix it uses, or the XAML\nwill not compile.\n\nThe inline `<ContentPage.BindingContext>` above keeps the example self-contained. In\nan app that uses dependency injection, register the ViewModel instead and assign it\nthrough constructor injection (`BindingContext = vm;`) — see the\n**maui-dependency-injection** skill.\n\n**Key rules:**\n\n- Bind `ItemsSource` to an `ObservableCollection<T>` so the UI updates on add/remove.\n- Each item template root must be a `Layout` or `View` — **never use `ViewCell`**.\n- Always set `x:DataType` on `DataTemplate` for compiled bindings.\n\n## Layouts\n\nSet `ItemsLayout` to control arrangement. Default is `VerticalList`.\n\n| Layout | XAML value |\n|---|---|\n| Vertical list | `VerticalList` (default) |\n| Horizontal list | `HorizontalList` |\n| Vertical grid | `GridItemsLayout` with `Orientation=\"Vertical\"` |\n| Horizontal grid | `GridItemsLayout` with `Orientation=\"Horizontal\"` |\n\n### Grid Layout\n\n```xml\n<CollectionView ItemsSource=\"{Binding Items}\">\n    <CollectionView.ItemsLayout>\n        <GridItemsLayout Orientation=\"Vertical\"\n                         Span=\"2\"\n                         VerticalItemSpacing=\"8\"\n                         HorizontalItemSpacing=\"8\" />\n    </CollectionView.ItemsLayout>\n    <CollectionView.ItemTemplate>\n        <DataTemplate x:DataType=\"models:Item\">\n            <Border Padding=\"8\" StrokeThickness=\"0\">\n                <VerticalStackLayout>\n                    <Image Source=\"{Binding Image}\" HeightRequest=\"120\" Aspect=\"AspectFill\" />\n                    <Label Text=\"{Binding Name}\" FontAttributes=\"Bold\" />\n                </VerticalStackLayout>\n            </Border>\n        </DataTemplate>\n    </CollectionView.ItemTemplate>\n</CollectionView>\n```\n\n### Horizontal List\n\n```xml\n<CollectionView ItemsSource=\"{Binding Items}\"\n                ItemsLayout=\"HorizontalList\" />\n```\n\n## Selection\n\n### Selection Mode\n\n| Mode | Property to bind | Binding mode |\n|---|---|---|\n| `None` | — | — |\n| `Single` | `SelectedItem` | `TwoWay` |\n| `Multiple` | `SelectedItems` | `OneWay` |\n\n```xml\n<CollectionView ItemsSource=\"{Binding Items}\"\n                SelectionMode=\"Single\"\n                SelectedItem=\"{Binding CurrentItem, Mode=TwoWay}\"\n                SelectionChangedCommand=\"{Binding ItemSelectedCommand}\" />\n```\n\nFor `Multiple` selection, bind `SelectedItems` (type `IList<object>`):\n\n```xml\n<CollectionView SelectionMode=\"Multiple\"\n                SelectedItems=\"{Binding ChosenItems, Mode=OneWay}\" />\n```\n\n### Selected Visual State\n\nHighlight selected items using `VisualStateManager`:\n\n```xml\n<CollectionView.ItemTemplate>\n    <DataTemplate x:DataType=\"models:Item\">\n        <Grid Padding=\"8\">\n            <VisualStateManager.VisualStateGroups>\n                <VisualStateGroup Name=\"CommonStates\">\n                    <VisualState Name=\"Normal\">\n                        <VisualState.Setters>\n                            <Setter Property=\"BackgroundColor\" Value=\"Transparent\" />\n                        </VisualState.Setters>\n                    </VisualState>\n                    <VisualState Name=\"Selected\">\n                        <VisualState.Setters>\n                            <Setter Property=\"BackgroundColor\"\n                                    Value=\"{AppThemeBinding Light={StaticResource Primary}, Dark={StaticResource PrimaryDark}}\" />\n                        </VisualState.Setters>\n                    </VisualState>\n                </VisualStateGroup>\n            </VisualStateManager.VisualStateGroups>\n            <Label Text=\"{Binding Name}\" />\n        </Grid>\n    </DataTemplate>\n</CollectionView.ItemTemplate>\n```\n\n## Grouping\n\n1. Create a group class inheriting from `List<T>`:\n\n```csharp\npublic class AnimalGroup : List<Animal>\n{\n    public string Name { get; }\n    public AnimalGroup(string name, List<Animal> animals) : base(animals)\n    {\n        Name = name;\n    }\n}\n```\n\n2. Bind to `ObservableCollection<AnimalGroup>` and set `IsGrouped=\"True\"`:\n\n```xml\n<CollectionView ItemsSource=\"{Binding AnimalGroups}\"\n                IsGrouped=\"True\">\n    <CollectionView.GroupHeaderTemplate>\n        <DataTemplate x:DataType=\"models:AnimalGroup\">\n            <Label Text=\"{Binding Name}\"\n                   FontAttributes=\"Bold\"\n                   BackgroundColor=\"{StaticResource Gray100}\"\n                   Padding=\"8\" />\n        </DataTemplate>\n    </CollectionView.GroupHeaderTemplate>\n    <CollectionView.ItemTemplate>\n        <DataTemplate x:DataType=\"models:Animal\">\n            <Label Text=\"{Binding Name}\" Padding=\"16,4\" />\n        </DataTemplate>\n    </CollectionView.ItemTemplate>\n</CollectionView>\n```\n\n## Pull-to-Refresh\n\nWrap `CollectionView` in a `RefreshView`. Set `IsRefreshing` back to `false` when done:\n\n```xml\n<RefreshView IsRefreshing=\"{Binding IsRefreshing}\"\n             Command=\"{Binding RefreshCommand}\">\n    <CollectionView ItemsSource=\"{Binding Items}\" />\n</RefreshView>\n```\n\n## Incremental Loading (Infinite Scroll)\n\n```xml\n<CollectionView ItemsSource=\"{Binding Items}\"\n                RemainingItemsThreshold=\"5\"\n                RemainingItemsThresholdReachedCommand=\"{Binding LoadMoreCommand}\" />\n```\n\n> ⚠️ **Do NOT use with non-virtualizing layouts.** `LinearItemsLayout` and `GridItemsLayout` support virtualization. Using `BindableLayout` on a `StackLayout` as an alternative to `CollectionView` has no virtualization, which triggers infinite threshold-reached events.\n\n## SwipeView — Binding from Inside DataTemplate\n\nCommands inside a `DataTemplate` can't directly reach your ViewModel. Use `RelativeSource AncestorType`:\n\n```xml\n<CollectionView.ItemTemplate>\n    <DataTemplate x:DataType=\"models:Item\">\n        <SwipeView>\n            <SwipeView.RightItems>\n                <SwipeItems>\n                    <SwipeItem Text=\"Delete\"\n                               BackgroundColor=\"Red\"\n                               Command=\"{Binding BindingContext.DeleteCommand, Source={RelativeSource AncestorType={x:Type ContentPage}}}\"\n                               CommandParameter=\"{Binding}\" />\n                </SwipeItems>\n            </SwipeView.RightItems>\n            <Grid Padding=\"8\">\n                <Label Text=\"{Binding Name}\" />\n            </Grid>\n        </SwipeView>\n    </DataTemplate>\n</CollectionView.ItemTemplate>\n```\n\n## EmptyView\n\nShown when `ItemsSource` is empty or null.\n\n```xml\n<CollectionView ItemsSource=\"{Binding SearchResults}\"\n                EmptyView=\"No items found.\" />\n```\n\nFor a custom empty view, wrap in `ContentView`:\n\n```xml\n<CollectionView ItemsSour","tagline":"Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. 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USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding).","category":"research","url":"https://www.openagentskill.com/skills/managedcode-maui-collectionview","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview","github_repo":"managedcode/dotnet-skills"},"suited_tasks":["Research agents workflows","Claude Code teams","builders willing to evaluate younger projects","Search sources","Extract claims","Synthesize findings","Inspect repository metadata","Compare code changes"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add managedcode-maui-collectionview"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"maui-collectionview\" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"maui-collectionview\" as a Claude Code skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"maui-collectionview\" from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. 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After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/managedcode-maui-collectionview/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/managedcode-maui-collectionview"},"trust":{"score":77,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"477 GitHub stars","repoActivity":"477 stars, 33 forks","lastPushed":"5d since push","license":"MIT","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview","install":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, network or browser access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["research","agent-skill"],"known_risks":["Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":82,"risk_level":"safe_to_try","risk_label":"Safe to try","warnings":["Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"safety_gate":{"tier":"experimental","label":"Experimental","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives."},"quality":{"score":73,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"GitHub automation","maintenance":"5d since push","risk":"Safe to try"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No major risk signals from current metadata","High-risk permission hints: Shell or command execution","Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface"],"agent_contract":{"task_input":"Use maui-collectionview in an agent workflow","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","install_policy":"review","minimum_review_before_use":["Trust: 77/100 Strong shortlist","Audit: 82/100 Safe to try","Safety: 54/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"managedcode-maui-collectionview (maui-collectionview)","install_command":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","risk_summary":"Safe to try; Experimental; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"managedcode-maui-collectionview","task":"Use maui-collectionview in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/managedcode-maui-collectionview","api":"https://www.openagentskill.com/api/agent/skills/managedcode-maui-collectionview","audit":"https://www.openagentskill.com/skills/managedcode-maui-collectionview/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=managedcode-maui-collectionview&task=Use%20maui-collectionview%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20maui-collectionview%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20maui-collectionview%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/managedcode-maui-collectionview/install","manifest":"https://www.openagentskill.com/api/registry/manifest/managedcode-maui-collectionview"}},"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"managedcode-maui-collectionview","name":"maui-collectionview","description":"Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding).","category":"research","url":"https://www.openagentskill.com/skills/managedcode-maui-collectionview","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview","github_repo":"managedcode/dotnet-skills"},"suited_tasks":["Research agents workflows","Claude Code teams","builders willing to evaluate younger projects","Search sources","Extract claims","Synthesize findings","Inspect repository metadata","Compare code changes"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add managedcode-maui-collectionview"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"maui-collectionview\" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"maui-collectionview\" as a Claude Code skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"maui-collectionview\" from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/managedcode-maui-collectionview/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/managedcode-maui-collectionview"},"trust":{"score":77,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"477 GitHub stars","repoActivity":"477 stars, 33 forks","lastPushed":"5d since push","license":"MIT","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview","install":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, network or browser access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["research","agent-skill"],"known_risks":["Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":82,"risk_level":"safe_to_try","risk_label":"Safe to try","warnings":["Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"safety_gate":{"tier":"experimental","label":"Experimental","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives."},"quality":{"score":73,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"GitHub automation","maintenance":"5d since push","risk":"Safe to try"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No major risk signals from current metadata","High-risk permission hints: Shell or command execution","Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface"],"agent_contract":{"task_input":"Use maui-collectionview in an agent workflow","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","install_policy":"review","minimum_review_before_use":["Trust: 77/100 Strong shortlist","Audit: 82/100 Safe to try","Safety: 54/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"managedcode-maui-collectionview (maui-collectionview)","install_command":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","risk_summary":"Safe to try; Experimental; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"managedcode-maui-collectionview","task":"Use maui-collectionview in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/managedcode-maui-collectionview","api":"https://www.openagentskill.com/api/agent/skills/managedcode-maui-collectionview","audit":"https://www.openagentskill.com/skills/managedcode-maui-collectionview/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=managedcode-maui-collectionview&task=Use%20maui-collectionview%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20maui-collectionview%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20maui-collectionview%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/managedcode-maui-collectionview/install","manifest":"https://www.openagentskill.com/api/registry/manifest/managedcode-maui-collectionview"}},"supply_profile":{"track":{"slug":"coding","label":"Coding and developer agents","shortLabel":"Coding","description":"Code review, repo analysis, testing, CI, GitHub, DevOps, and developer workflow skills."},"scenario":{"label":"GitHub automation","description":"I need my agent to triage GitHub issues, review pull requests, and summarize repository changes.","useCases":[{"slug":"research-agents","title":"Research agents"},{"slug":"github-automation","title":"GitHub automation"},{"slug":"browser-automation","title":"Browser automation"}]},"applicableAgents":["Claude Code","CLI","Codex","Cursor"],"install":{"ready":true,"command":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":477,"starsLabel":"477","forks":33,"license":"MIT","qualityScore":73,"trustScore":77,"auditScore":82},"maintenance":{"status":"fresh","label":"5d since push","daysSincePush":5,"lastPushedAt":"2026-08-31T10:16:14+00:00"},"risk":{"level":"safe_to_try","label":"Safe to try","requiresReview":true,"notes":["Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"coverageTags":["Coding","GitHub automation","research","agent-skill"]},"audit":{"audit_score":82,"risk_level":"safe_to_try","risk_label":"Safe to try","quality_score":73,"trust_score":77,"maintenance_score":100,"security_score":82,"install_score":92,"warnings":["Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"quality_signals":{"model":"v2","star_score":18.76,"usage_score":0,"review_score":5.1,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code"],"use_cases":[{"slug":"research-agents","title":"Research agents","url":"https://www.openagentskill.com/use-cases/research-agents"},{"slug":"github-automation","title":"GitHub automation","url":"https://www.openagentskill.com/use-cases/github-automation"},{"slug":"browser-automation","title":"Browser automation","url":"https://www.openagentskill.com/use-cases/browser-automation"},{"slug":"testing-qa","title":"Testing and QA","url":"https://www.openagentskill.com/use-cases/testing-qa"}],"stacks":[{"slug":"research-report-agent","title":"Research report agent","url":"https://www.openagentskill.com/collections/research-report-agent"},{"slug":"browser-qa-agent","title":"Browser QA agent","url":"https://www.openagentskill.com/collections/browser-qa-agent"},{"slug":"coding-review-agent","title":"Coding review agent","url":"https://www.openagentskill.com/collections/coding-review-agent"}],"install":"npx skills add managedcode/dotnet-skills --skill maui-collectionview","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add managedcode-maui-collectionview","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"maui-collectionview\" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"maui-collectionview\" as a Claude Code skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"maui-collectionview\" from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Guidance for implementing CollectionView in .NET MAUI apps — data display, layouts (list & grid), selection, grouping, scrolling, empty views, templates, incremental loading, swipe actions, and pull-to-refresh. USE FOR: \"CollectionView\", \"list view\", \"grid layout\", \"data template\", \"item template\", \"grouping\", \"pull to refresh\", \"incremental loading\", \"swipe actions\", \"empty view\", \"selection mode\", \"scroll to item\", displaying scrollable data, replacing ListView. DO NOT USE FOR: simple static layouts without scrollable data (use Grid or StackLayout), map pin lists (use Microsoft.Maui.Controls.Maps), table-based data entry forms, non-MAUI list controls, CarouselView or BindableLayout questions, platform-specific handler or renderer customization, diagnosing CollectionView bugs in the MAUI framework itself, or general MVVM/binding questions that merely happen to mention a list (use maui-data-binding). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"managedcode-maui-collectionview\",\"task\":\"Install maui-collectionview\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview","github_repo":"managedcode/dotnet-skills","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/managedcode-maui-collectionview","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Official-DotNet-MAUI/skills/maui-collectionview","api":"/api/agent/skills/managedcode-maui-collectionview","install_api":"/api/skills/managedcode-maui-collectionview/install"},"meta":{"created_at":"2026-09-03T07:02:13.340308+00:00","updated_at":"2026-09-03T07:02:13.423514+00:00","agent_friendly":true}}