avalonia-zafiro-development

avalonia-zafiro-development is a skill for Claude Code, Codex from benjaminasterA/antigravity-awesome-skills. It costs 27 tokens per session (415 once invoked), scanned A, original, MIT.

A set of development rules for building cross-platform desktop interfaces with Avalonia UI and the Zafiro toolkit, using a pattern that keeps interface code separate from application logic.

In plain words
What is it for?
Use it when designing or changing Avalonia applications, especially their view models, reactive data collections, validation, and Zafiro integrations.
Why use it?
It provides consistent conventions for state management, error handling, naming, and reuse of Zafiro features. This reduces platform-specific code and avoids using exceptions for normal control flow.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when designing or changing Avalonia applications, especially their view models, reactive data collections, validation, and Zafiro integrations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/benjaminastera/antigravity-awesome-skills/avalonia-zafiro-development
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 benjaminasterA/antigravity-awesome-skills --skill avalonia-zafiro-development
Clone the repo
git clone --depth 1 https://github.com/benjaminasterA/antigravity-awesome-skills

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 avalonia-zafiro-development

README.md
[![agentmods](https://agentmods.dev/badge/skills/benjaminastera/antigravity-awesome-skills/avalonia-zafiro-development/github.svg)](https://agentmods.dev/skills/benjaminastera/antigravity-awesome-skills/avalonia-zafiro-development)
Your own site
<a href="https://agentmods.dev/skills/benjaminastera/antigravity-awesome-skills/avalonia-zafiro-development"><img src="https://agentmods.dev/badge/skills/benjaminastera/antigravity-awesome-skills/avalonia-zafiro-development/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 avalonia-zafiro-development

Your own site · 80×15
<a href="https://agentmods.dev/skills/benjaminastera/antigravity-awesome-skills/avalonia-zafiro-development"><img src="https://agentmods.dev/badge/skills/benjaminastera/antigravity-awesome-skills/avalonia-zafiro-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 415 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 $0.00027 $0.00415
Opus 5 $0.00014 $0.00208
Sonnet 5 $0.00005 $0.00083
Haiku 4.5 $0.00003 $0.00042

Measured 12d ago against content hash 50e7f21c8c3d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

avalonia-zafiro-development 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 12d 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

skills/avalonia-zafiro-development/SKILL.md · 35 lines

What it actually says

Avalonia Zafiro Development

This skill defines the mandatory conventions and behavioral rules for developing cross-platform applications with Avalonia UI and the Zafiro toolkit. These rules prioritize maintainability, correctness, and a functional-reactive approach.

Core Pillars

  1. Functional-Reactive MVVM: Pure MVVM logic using DynamicData and ReactiveUI.
  2. Safety & Predictability: Explicit error handling with Result types and avoidance of exceptions for flow control.
  3. Cross-Platform Excellence: Strictly Avalonia-independent ViewModels and composition-over-inheritance.
  4. Zafiro First: Leverage existing Zafiro abstractions and helpers to avoid redundancy.

Guides

Procedure Before Writing Code

  1. Search First: Search the codebase for similar implementations or existing Zafiro helpers.
  2. Reusable Extensions: If a helper is missing, propose a new reusable extension method instead of inlining complex logic.
  3. Reactive Pipelines: Ensure DynamicData operators are used instead of plain Rx where applicable.

When to Use

This skill is applicable to execute the workflow or actions described in the overview.

Files

What ships with it

5 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. 12d ago First seen · 35 lines · 27 tokens per session scan A 50e7f21c8c3d

Subscribe to this mod's changes

avalonia-zafiro-development is a skill published in the GitHub repository benjaminasterA/antigravity-awesome-skills (271 stars, last pushed today), licensed MIT. It adds 27 tokens to every session and 415 once invoked, about $0.0001 per session on Opus 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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