author-component SKILL.md skillA
author-component from dotnet/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dotnet/skills/author-component@git:20260525.198e58cPins git:20260525.198e58c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dotnet/skills
- Path
plugins/dotnet-blazor/skills/author-component/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260525.198e58c, committed May 25, 2026
- Size
- 3,344 bytes
- Repository stars
- 5,836
- License
- MIT
Create or review Blazor components (.razor files) with correct architecture. USE FOR: writing new Blazor components that do NOT involve JavaScript interop, implementing parameters and EventCallback, RenderFragment slots, component lifecycle (OnInitializedAsync, OnParametersSet), async patterns, IAsyncDisposable, CancellationToken, CSS isolation, code-behind. DO NOT USE FOR: creating new projects (use create-blazor-project), JavaScript interop or calling browser APIs from Blazor…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Author Blazor Component
## Core Rules
- Data flows **down** via `[Parameter]`. Events flow **up** via `EventCallback<T>` (never `Action`/`Func`).
- Never mutate `[Parameter]` properties. Copy to a private field in `OnParametersSet`.
- Use `[Parameter] public T Prop { get; set; }` — never `required` or `init` (causes BL0007).
- Use `[EditorRequired]` for required parameters.
- Handle all states: loading, empty, loaded, error — each with `@if`/`@else`.
- Use `@key` on repeated elements in loops for efficient diffing.
- Use `IReadOnlyList<T>` (not `IEnumerable<T>`) for collection parameters.
## RenderFragment & Generics
```csharp
[Parameter] public RenderFragment? ChildContent { get; set; }
[Parameter] public RenderFragment<TItem>? RowTemplate { get; set; } // generic template
```
Use `@typeparam TItem` for generic components.
## File Patterns
- **Single-file:** `.razor` with `@code` block when logic < ~50 lines.
- **Code-behind:** `.razor` + `.razor.cs` with `partial class` when logic > ~50 lines.
## Disposal
Implement `IAsyncDisposable` (not `IDisposable`) when the component owns subscriptions, timers, or CTS.
…Read the whole file at its exact version.
How to install
mdr add dotnet/skills/author-component@sha256:dd019cae755aac50The line at the top of this page pins the label git:20260525.198e58c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_4hyw6vi2zzyysa4f)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 25, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3344 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
dotnet/skills · 5,836 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4hyw6vi2zzyysa4f GET https://markdownregistry.com/api/v1/resolve?ref=dotnet/skills/author-component GET https://markdownregistry.com/api/v1/blob/dd019cae755aac5064ff75cfd6ed6a4a098ab3c9c36c6817432ce70c61ffd279
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.