{"slug":"managedcode-blazor","name":"blazor","description":"Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made.","long_description":"---\nname: blazor\ndescription: \"Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made.\"\ncompatibility: \"Requires Blazor project (.NET 6+, preferably .NET 8+ for unified model).\"\n---\n\n# Blazor\n\n## Trigger On\n\n- building interactive web UIs with C# instead of JavaScript\n- choosing between Server, WebAssembly, or Auto render modes\n- designing component hierarchies and state management\n- handling prerendering and hydration\n- integrating with JavaScript when necessary\n\n## Documentation\n\n- [Blazor Overview](https://learn.microsoft.com/en-us/aspnet/core/blazor/?view=aspnetcore-10.0)\n- [Render Modes](https://learn.microsoft.com/en-us/aspnet/core/blazor/components/render-modes?view=aspnetcore-10.0)\n- [Performance Best Practices](https://learn.microsoft.com/en-us/aspnet/core/blazor/performance?view=aspnetcore-10.0)\n- [State Management](https://learn.microsoft.com/en-us/aspnet/core/blazor/state-management?view=aspnetcore-10.0)\n- [JS Interop](https://learn.microsoft.com/en-us/aspnet/core/blazor/javascript-interoperability/?view=aspnetcore-10.0)\n\n### References\n\n- [patterns.md](references/patterns.md) - Detailed component patterns, state management strategies, and JS interop techniques\n- [anti-patterns.md](references/anti-patterns.md) - Common Blazor mistakes and how to avoid them\n\n## Render Modes (.NET 8+)\n\n| Mode | Where It Runs | Best For |\n|------|---------------|----------|\n| `Static` | Server (no interactivity) | SEO pages, marketing content |\n| `InteractiveServer` | Server via SignalR | Real-time apps, thin clients |\n| `InteractiveWebAssembly` | Browser via WASM | Offline-capable, client-heavy |\n| `InteractiveAuto` | Server first, then WASM | Best of both worlds |\n\n### Applying Render Modes\n\n```razor\n@* Per-component *@\n@rendermode InteractiveServer\n\n@* Or in App.razor for global *@\n<Routes @rendermode=\"InteractiveAuto\" />\n```\n\n### InteractiveAuto Architecture\n\n```\nFirst Request:\n  Browser → Server (Interactive Server) → Fast response\n\nSubsequent Requests:\n  Browser → WASM (downloaded in background) → No server needed\n```\n\n## Workflow\n\n1. **Choose render mode based on requirements:**\n   - Need SEO? Start with Static or prerendering\n   - Need real-time? Use InteractiveServer\n   - Need offline? Use InteractiveWebAssembly\n   - Want both? Use InteractiveAuto\n\n2. **Design components for reusability:**\n   - Small, focused components\n   - Parameters for customization\n   - Events for communication\n\n3. **Handle state correctly:**\n   - Component state lives in component\n   - Shared state via services (DI)\n   - Persist state across prerender with `[PersistentState]`\n\n4. **Validate in both environments** (for Auto mode)\n\n## Current Upstream Notes\n\n- Treat `dotnet/aspnetcore` `v10.0.11` as servicing. It fixes restoration of expired client-persisted circuit state; re-run reconnect, persisted-state expiry, render-mode, and interactive-auto client/server split tests when upgrading.\n- The August 2026 ASP.NET Core overview still positions Blazor as the component UI path. A servicing update does not change the component or render-mode architecture by itself.\n\n## Component Patterns\n\n### Basic Component\n```razor\n@* Counter.razor *@\n<button @onclick=\"IncrementCount\">\n    Clicked @count times\n</button>\n\n@code {\n    private int count = 0;\n\n    [Parameter]\n    public int InitialCount { get; set; } = 0;\n\n    protected override void OnInitialized()\n    {\n        count = InitialCount;\n    }\n\n    private void IncrementCount() => count++;\n}\n```\n\n### Parameter and Event Callbacks\n```razor\n@* Parent.razor *@\n<ChildComponent Value=\"@value\" ValueChanged=\"@OnValueChanged\" />\n\n@* ChildComponent.razor *@\n@code {\n    [Parameter] public string Value { get; set; } = \"\";\n    [Parameter] public EventCallback<string> ValueChanged { get; set; }\n\n    private async Task UpdateValue(string newValue)\n    {\n        await ValueChanged.InvokeAsync(newValue);\n    }\n}\n```\n\n### State Persistence (.NET 8+)\n```razor\n@* Prevents double-fetch during prerender + hydration *@\n@code {\n    [PersistentState]\n    public List<Product> Products { get; set; } = [];\n\n    protected override async Task OnInitializedAsync()\n    {\n        // Only fetches once, persisted across prerender\n        Products ??= await Http.GetFromJsonAsync<List<Product>>(\"api/products\");\n    }\n}\n```\n\n## Data Access Pattern for Auto Mode\n\n```csharp\n// Shared interface\npublic interface IProductService\n{\n    Task<List<Product>> GetProductsAsync();\n}\n\n// Server implementation (direct DB access)\npublic class ServerProductService : IProductService\n{\n    private readonly AppDbContext _db;\n    public async Task<List<Product>> GetProductsAsync()\n        => await _db.Products.ToListAsync();\n}\n\n// Client implementation (HTTP call)\npublic class ClientProductService : IProductService\n{\n    private readonly HttpClient _http;\n    public async Task<List<Product>> GetProductsAsync()\n        => await _http.GetFromJsonAsync<List<Product>>(\"api/products\");\n}\n\n// Registration\n// Server: builder.Services.AddScoped<IProductService, ServerProductService>();\n// Client: builder.Services.AddScoped<IProductService, ClientProductService>();\n```\n\n## Anti-Patterns to Avoid\n\n| Anti-Pattern | Why It's Bad | Better Approach |\n|--------------|--------------|-----------------|\n| Large components | Hard to maintain, slow renders | Split into smaller components |\n| Direct DB access in WASM | No DB in browser | Use HTTP API |\n| Ignoring `ShouldRender` | Unnecessary re-renders | Override when needed |\n| Sync JS interop in Server | Blocks SignalR circuit | Use `IJSRuntime` async |\n| No error boundaries | One error crashes app | Use `<ErrorBoundary>` |\n| Forgetting prerender state | Double API calls | Use `[PersistentState]` |\n\n## Performance Best Practices\n\n1. **Virtualize large lists:**\n   ```razor\n   <Virtualize Items=\"@products\" Context=\"product\">\n       <ProductCard Product=\"@product\" />\n   </Virtualize>\n   ```\n\n2. **Use `@key` for list diffing:**\n   ```razor\n   @foreach (var item in items)\n   {\n       <ItemComponent @key=\"item.Id\" Item=\"@item\" />\n   }\n   ```\n\n3. **Debounce rapid events:**\n   ```csharp\n   private Timer? _debounceTimer;\n\n   private void OnInput(ChangeEventArgs e)\n   {\n       _debounceTimer?.Dispose();\n       _debounceTimer = new Timer(_ => InvokeAsync(DoSearch), null, 300, Timeout.Infinite);\n   }\n   ```\n\n4. **Lazy load assemblies (WASM):**\n   ```csharp\n   var assemblies = await LazyAssemblyLoader\n       .LoadAssembliesAsync([\"MyHeavyFeature.wasm\"]);\n   ```\n\n## JS Interop\n\n### Calling JavaScript from C#\n```csharp\n@inject IJSRuntime JS\n\nawait JS.InvokeVoidAsync(\"alert\", \"Hello from Blazor!\");\nvar result = await JS.InvokeAsync<string>(\"prompt\", \"Enter name:\");\n```\n\n### Calling C# from JavaScript\n```csharp\n[JSInvokable]\npublic static string GetMessage() => \"Hello from C#!\";\n```\n\n```javascript\nDotNet.invokeMethodAsync('MyAssembly', 'GetMessage')\n    .then(result => console.log(result));\n```\n\n## Deliver\n\n- interactive Blazor components with appropriate render mode\n- efficient state management and data flow\n- proper handling of prerendering scenarios\n- performant list rendering with virtualization\n\n## Validate\n\n- components render correctly in chosen mode\n- state persists correctly across prerender/hydration\n- no unnecessary re-renders (check with browser tools)\n- JS interop works in both Server and WASM\n- error boundaries catch component failures\n- Auto mode works in both environments\n","tagline":"Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. 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issue activity unavailable in current metadata"],"evidence":{"stars":"477 GitHub stars","repoActivity":"477 stars, 33 forks","lastPushed":"1d since push","license":"MIT","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor","install":"npx skills add managedcode/dotnet-skills --skill blazor","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","agentOutcomes":"No agent outcome data yet"},"installReadiness":{"ready":true,"command":"npx skills add managedcode/dotnet-skills --skill blazor","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","1d since push"]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","Quality score needs review","Stars/forks activity: 477 stars, 33 forks; 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issue activity unavailable in current metadata"],"validation_plan":["Inspect repository, README/SKILL.md, license, and recent commits before production use.","Install in an isolated workspace or sandbox with no production secrets available.","Run the smallest representative task and record files touched, commands run, network access, and outputs.","Compare the selected skill against at least one alternative when the eval status is review or failed.","Promote only after the agent reports a successful verification result and unresolved warnings are accepted."],"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":84,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate blazor before installing it in an agent workflow","research","Browser automation workflows; Claude Code teams; builders willing to evaluate younger projects"]},{"id":"install_path","label":"Install path","status":"pass","score":92,"required_for_auto_install":true,"detail":"Install handoff is available.","evidence":["npx skills add managedcode/dotnet-skills --skill blazor"]},{"id":"install_safety","label":"Install command safety","status":"pass","score":92,"required_for_auto_install":true,"detail":"standard package or runtime install path","evidence":["npx skills add managedcode/dotnet-skills --skill blazor"]},{"id":"trust_score","label":"Trust score","status":"warn","score":71,"required_for_auto_install":true,"detail":"Potentially useful, but at least one trust signal needs human inspection.","evidence":["Manual review","477 GitHub stars","MIT"]},{"id":"audit_score","label":"Audit score","status":"warn","score":80,"required_for_auto_install":true,"detail":"Needs review","evidence":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands."]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":60,"required_for_auto_install":true,"detail":"Usable candidate, but the agent should surface permission and audit notes before installation.","evidence":["Require human approval before installing into a real workspace.","SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands."]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"warn","score":76,"required_for_auto_install":false,"detail":"Public metadata needs stronger README/SKILL.md context","evidence":["Usable metadata, review docs"]},{"id":"license_clarity","label":"License clarity","status":"pass","score":86,"required_for_auto_install":true,"detail":"MIT","evidence":["MIT"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"1d since push","evidence":["1d since push"]},{"id":"permission_surface","label":"Permission surface","status":"warn","score":72,"required_for_auto_install":true,"detail":"filesystem or document access, network or browser access","evidence":["Browser automation: medium","Network access: medium","Filesystem access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"info","score":55,"required_for_auto_install":false,"detail":"No close alternatives were found in the current shortlist.","evidence":[]}],"endpoints":{"web":"https://www.openagentskill.com/skills/managedcode-blazor/evals","api":"/api/agent/evals?slug=managedcode-blazor","text":"/api/agent/evals?slug=managedcode-blazor&format=text"}},"agent_readable_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"managedcode-blazor","name":"blazor","description":"Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. 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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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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 \"blazor\" as a Claude Code skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor. 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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 \"blazor\" from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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-blazor/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/managedcode-blazor"},"trust":{"score":71,"label":"Manual review","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"477 GitHub stars","repoActivity":"477 stars, 33 forks","lastPushed":"1d since push","license":"MIT","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor","install":"npx skills add managedcode/dotnet-skills --skill blazor","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","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":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","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":80,"risk_level":"needs_review","risk_label":"Needs review","warnings":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","Some documentation excerpts appear truncated in the provided review material, making it harder to confirm completeness of the data access pattern and anti-patterns content.","Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Require human approval before installing into a real workspace."},"quality":{"score":74,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"Coding agents","maintenance":"1d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","No OpenAgentSkill engagement data yet","Some documentation excerpts appear truncated in the provided review material, making it harder to confirm completeness of the data access pattern and anti-patterns content.","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"],"agent_contract":{"task_input":"Use blazor in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 71/100 Manual review","Audit: 80/100 Needs review","Safety: 60/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"managedcode-blazor (blazor)","install_command":"npx skills add managedcode/dotnet-skills --skill blazor","risk_summary":"Needs review; Reviewed with permission notes; 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-blazor","task":"Use blazor 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-blazor","api":"https://www.openagentskill.com/api/agent/skills/managedcode-blazor","audit":"https://www.openagentskill.com/skills/managedcode-blazor/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=managedcode-blazor&task=Use%20blazor%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20blazor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20blazor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/managedcode-blazor/install","manifest":"https://www.openagentskill.com/api/registry/manifest/managedcode-blazor"}},"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"managedcode-blazor","name":"blazor","description":"Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made.","category":"research","url":"https://www.openagentskill.com/skills/managedcode-blazor","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor","github_repo":"managedcode/dotnet-skills"},"suited_tasks":["Browser automation workflows","Claude Code teams","builders willing to evaluate younger projects","Navigate pages","Click and type safely","Check visual and DOM state","Inspect source files","Explain architecture"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","Browser agents","CLI"],"install":{"command":"npx skills add managedcode/dotnet-skills --skill blazor","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-blazor"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"blazor\" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor. 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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 \"blazor\" as a Claude Code skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor. 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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 \"blazor\" from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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-blazor/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/managedcode-blazor"},"trust":{"score":71,"label":"Manual review","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"477 GitHub stars","repoActivity":"477 stars, 33 forks","lastPushed":"1d since push","license":"MIT","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor","install":"npx skills add managedcode/dotnet-skills --skill blazor","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Usable metadata, review docs","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":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","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":80,"risk_level":"needs_review","risk_label":"Needs review","warnings":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","Some documentation excerpts appear truncated in the provided review material, making it harder to confirm completeness of the data access pattern and anti-patterns content.","Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Require human approval before installing into a real workspace."},"quality":{"score":74,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"Coding agents","maintenance":"1d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","No OpenAgentSkill engagement data yet","Some documentation excerpts appear truncated in the provided review material, making it harder to confirm completeness of the data access pattern and anti-patterns content.","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"],"agent_contract":{"task_input":"Use blazor in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 71/100 Manual review","Audit: 80/100 Needs review","Safety: 60/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"managedcode-blazor (blazor)","install_command":"npx skills add managedcode/dotnet-skills --skill blazor","risk_summary":"Needs review; Reviewed with permission notes; 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-blazor","task":"Use blazor 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-blazor","api":"https://www.openagentskill.com/api/agent/skills/managedcode-blazor","audit":"https://www.openagentskill.com/skills/managedcode-blazor/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=managedcode-blazor&task=Use%20blazor%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20blazor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20blazor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/managedcode-blazor/install","manifest":"https://www.openagentskill.com/api/registry/manifest/managedcode-blazor"}},"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":"Coding agents","description":"I need a coding agent that can understand a repository, edit code, and review pull requests.","useCases":[{"slug":"browser-automation","title":"Browser automation"},{"slug":"coding-agents","title":"Coding agents"},{"slug":"research-agents","title":"Research agents"}]},"applicableAgents":["Claude Code","Browser agents","CLI","Codex","Cursor"],"install":{"ready":true,"command":"npx skills add managedcode/dotnet-skills --skill blazor","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":477,"starsLabel":"477","forks":33,"license":"MIT","qualityScore":74,"trustScore":71,"auditScore":80},"maintenance":{"status":"fresh","label":"1d since push","daysSincePush":1,"lastPushedAt":"2026-09-05T07:56:40+00:00"},"risk":{"level":"needs_review","label":"Needs review","requiresReview":true,"notes":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","Some documentation excerpts appear truncated in the provided review material, making it harder to confirm completeness of the data access pattern and anti-patterns content.","Quality score needs review","Stars/forks activity: 477 stars, 33 forks; issue activity unavailable in current metadata","Needs review"]},"coverageTags":["Coding","Coding agents","research","agent-skill"]},"audit":{"audit_score":80,"risk_level":"needs_review","risk_label":"Needs review","quality_score":74,"trust_score":71,"maintenance_score":100,"security_score":79,"install_score":92,"warnings":["SKILL.md does not explicitly define safe command execution boundaries or verification steps before running build/test commands.","Some documentation excerpts appear truncated in the provided review material, making it harder to confirm completeness of the data access pattern and anti-patterns content.","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":5.25,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code","Browser agents"],"use_cases":[{"slug":"browser-automation","title":"Browser automation","url":"https://www.openagentskill.com/use-cases/browser-automation"},{"slug":"coding-agents","title":"Coding agents","url":"https://www.openagentskill.com/use-cases/coding-agents"},{"slug":"research-agents","title":"Research agents","url":"https://www.openagentskill.com/use-cases/research-agents"},{"slug":"workflow-automation","title":"Workflow automation","url":"https://www.openagentskill.com/use-cases/workflow-automation"}],"stacks":[{"slug":"browser-qa-agent","title":"Browser QA agent","url":"https://www.openagentskill.com/collections/browser-qa-agent"},{"slug":"content-growth-agent","title":"Content growth agent","url":"https://www.openagentskill.com/collections/content-growth-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 blazor","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-blazor","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 \"blazor\" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor. 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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 \"blazor\" as a Claude Code skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor. 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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 \"blazor\" from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor 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: Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices. USE FOR: building interactive web UIs with C# instead of JavaScript; choosing between Server, WebAssembly, or Auto render modes; designing component hierarchies and state. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made. 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-blazor\",\"task\":\"Install blazor\",\"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/Blazor/skills/blazor","github_repo":"managedcode/dotnet-skills","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/managedcode-blazor","repository":"https://github.com/managedcode/dotnet-skills/tree/main/catalog/Frameworks/Blazor/skills/blazor","api":"/api/agent/skills/managedcode-blazor","install_api":"/api/skills/managedcode-blazor/install"},"meta":{"created_at":"2026-09-05T15:12:37.640093+00:00","updated_at":"2026-09-05T15:12:37.82892+00:00","agent_friendly":true}}