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.
npx skills add lucaspmarie-a11y/claude-skills-vault --skill avalonia-zafiro-developmentgit clone --depth 1 https://github.com/lucaspmarie-a11y/claude-skills-vaultWrote 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.
[](https://agentmods.dev/skills/lucaspmarie-a11y/claude-skills-vault/avalonia-zafiro-development)<a href="https://agentmods.dev/skills/lucaspmarie-a11y/claude-skills-vault/avalonia-zafiro-development"><img src="https://agentmods.dev/badge/skills/lucaspmarie-a11y/claude-skills-vault/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.
<a href="https://agentmods.dev/skills/lucaspmarie-a11y/claude-skills-vault/avalonia-zafiro-development"><img src="https://agentmods.dev/badge/skills/lucaspmarie-a11y/claude-skills-vault/avalonia-zafiro-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00027 | $0.00426 |
| Opus 5 | $0.00014 | $0.00213 |
| Sonnet 5 | $0.00005 | $0.00085 |
| Haiku 4.5 | $0.00003 | $0.00043 |
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 8d 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.
This is a copy
94% identical to avalonia-zafiro-development — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
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
- Functional-Reactive MVVM: Pure MVVM logic using DynamicData and ReactiveUI.
- Safety & Predictability: Explicit error handling with
Resulttypes and avoidance of exceptions for flow control. - Cross-Platform Excellence: Strictly Avalonia-independent ViewModels and composition-over-inheritance.
- Zafiro First: Leverage existing Zafiro abstractions and helpers to avoid redundancy.
Guides
- Core Technical Skills & Architecture: Fundamental skills and architectural principles.
- Naming & Coding Standards: Rules for naming, fields, and error handling.
- Avalonia, Zafiro & Reactive Rules: Specific guidelines for UI, Zafiro integration, and DynamicData pipelines.
- Zafiro Shortcuts: Concise mappings for common Rx/Zafiro operations.
- Common Patterns: Advanced patterns like
RefreshableCollectionand Validation.
Procedure Before Writing Code
- Search First: Search the codebase for similar implementations or existing Zafiro helpers.
- Reusable Extensions: If a helper is missing, propose a new reusable extension method instead of inlining complex logic.
- 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.
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.
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.
- 8d ago First seen · 36 lines · 27 tokens per session scan A d38caa53e07d
avalonia-zafiro-development is a skill published in the GitHub repository lucaspmarie-a11y/claude-skills-vault (5 stars, last pushed 3mo ago), licensed MIT. It adds 27 tokens to every session and 426 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to avalonia-zafiro-development, differing in 3 lines, and is treated as a copy.
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