A set of guidelines for building Blazor applications, where Razor components are .NET files that define web pages and interface parts, with Fluent UI Blazor components. It covers page structure, services, forms, localization, validation, and visible loading or error states.

Use it when adding or changing Blazor pages, layouts, forms, dashboards, language support, or services used by the interface.

It helps keep interface code focused, workflows reusable, and user-facing text and states consistent across the application.

blazor — Skill for Claude Code and Codex by AterDev/Perigon.CLI

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 AterDev/Perigon.CLI --skill blazor

Clone the repo

git clone --depth 1 https://github.com/AterDev/Perigon.CLI

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aterdev/perigon.cli/blazor/github.svg)](https://agentmods.dev/skills/aterdev/perigon.cli/blazor)

Your own site

<a href="https://agentmods.dev/skills/aterdev/perigon.cli/blazor"><img src="https://agentmods.dev/badge/skills/aterdev/perigon.cli/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aterdev/perigon.cli/blazor"><img src="https://agentmods.dev/badge/skills/aterdev/perigon.cli/blazor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 328 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.

Model	Per session	Once invoked
Fable 5.1	$0.00045	$0.00328
Opus 5.5	$0.00018	$0.00131
Sonnet 5.5	$0.00009	$0.00066
Haiku 4.5	$0.00005	$0.00033

Measured 1mo ago against content hash 4c8b774c9e21, 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.

.agents/skills/blazor/SKILL.md · 30 lines

What it actually says

Blazor And Fluent UI Development

Workflow

Identify the page, component, layout, or service under src/Apps/Dashboard.
Read nearby Razor components and code-behind for local patterns.
Check Program.cs and ServiceCollectionExtension.cs before changing service registration or middleware.
Read the CoreMod service/manager before putting workflow logic in UI code.

Conventions

Keep Razor components focused on UI composition and user interaction.
Put reusable workflows in CoreMod services or managers.
Use Fluent UI Blazor components and icons consistently with surrounding pages.
Preserve app-level providers for message bars, toasts, dialogs, tooltips, menus, and theme.
Use scoped managers/services registered through the app startup path; avoid ad hoc service construction.
Make loading, empty, success, and error states explicit for data and form flows.
Keep UI text product-facing, not implementation-facing.

Localization And Validation

Use @Localizer.Get(Localizer.Key) for user-facing labels.
Add new strings to both src/Share/Localizer.zh-CN.resx and src/Share/Localizer.en-US.resx.
Prefer testing workflow behavior at the CoreMod service/manager layer. Run the Dashboard manually only when the UI change is risky or the user asks.

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.

1mo ago First seen · 30 lines · 45 tokens per session scan A 4c8b774c9e21

Subscribe to this mod's changes

blazor is a skill published in the GitHub repository AterDev/Perigon.CLI (54 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 45 tokens to every session and 328 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 2026-08-30.

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