blazor

blazor is a skill for Claude Code, Codex from jnPiyush/AgentX. It costs 51 tokens per session (1,464 once invoked), scanned A, original, Apache-2.0.

A guide to building interactive web applications with Blazor, Microsoft's .NET web framework for writing UI components in C#. It covers server-rendered and browser-run apps, component state, and JavaScript integration.

In plain words
What is it for?
Use it to create Razor components, bind data, manage application state, connect C# to JavaScript, and improve Blazor rendering performance.
Why use it?
It helps .NET developers structure interactive web interfaces without having to choose patterns and lifecycle behavior from scratch.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it to create Razor components, bind data, manage application state, connect C# to JavaScript, and improve Blazor rendering performance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jnpiyush/agentx/blazor
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add jnPiyush/AgentX --skill blazor
Clone the repo
git clone --depth 1 https://github.com/jnPiyush/AgentX

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for blazor

README.md
[![agentmods](https://agentmods.dev/badge/skills/jnpiyush/agentx/blazor/github.svg)](https://agentmods.dev/skills/jnpiyush/agentx/blazor)
Your own site
<a href="https://agentmods.dev/skills/jnpiyush/agentx/blazor"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/blazor/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for blazor

Your own site · 80×15
<a href="https://agentmods.dev/skills/jnpiyush/agentx/blazor"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/blazor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,464 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00051 $0.01464
Opus 5.5 $0.00020 $0.00586
Sonnet 5.5 $0.00010 $0.00293
Haiku 4.5 $0.00005 $0.00146

Measured 1mo ago against content hash 06bd9e5f4e98, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

blazor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.github/skills/languages/blazor/SKILL.md · 169 lines

How it starts

The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blazor Framework Development

Purpose: Production-ready Blazor development for building interactive web applications with C#. Audience: .NET engineers building Blazor Server or WebAssembly applications. Standard: Follows github/awesome-copilot Blazor patterns.


When to Use This Skill

  • Building Blazor Server or WebAssembly applications
  • Creating Razor components with parameters and binding
  • Implementing Blazor dependency injection
  • Adding JavaScript interop to Blazor apps
  • Optimizing Blazor rendering performance

Decision Tree

Blazor Hosting Decision
+-- Line-of-business / intranet app?
|   +-- Server resources available? -> Blazor Server
|   +-- Need real-time updates? -> Blazor Server (SignalR)
+-- Public-facing app?
|   +-- Offline support needed? -> Blazor WebAssembly
|   +-- Minimal server load? -> Blazor WebAssembly
+-- Best of both worlds?
|   +-- .NET 8+? -> Blazor United (SSR + interactive)
|   +-- Progressive enhancement? -> Blazor United
+-- Heavy JS interop needed? -> Consider React/Angular instead
+-- Simple static site? -> Consider plain HTML/CSS or SSG

Prerequisites

  • C# and .NET 8+ knowledge
  • Basic HTML/CSS understanding
  • Visual Studio or VS Code with C# extension

Quick Reference

Need Solution Pattern
Component Razor component @code { } block
Data binding Two-way binding @bind="propertyName"
Event handling Click events @onclick="HandleClick"
Dependency injection Inject services @inject IUserService UserService
Routing Page directive @page "/users/{UserId:int}"
Lifecycle Async initialization protected override async Task OnInitializedAsync()

Blazor Hosting Models

Blazor Server

  • Runs on server, updates sent via SignalR
  • Full .NET runtime on server
  • Small download size, fast initial load
  • Requires persistent connection

Read the full file on GitHub · 169 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago Changed 06bd9e5f4e98
  2. 1mo ago First seen · 169 lines · 51 tokens per session scan A fdd8688d46e6

Subscribe to this mod's changes

blazor is a skill published in the GitHub repository jnPiyush/AgentX (16 stars, last pushed 3d ago), licensed Apache-2.0. It adds 51 tokens to every session and 1,464 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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