Antigravity Skill Vault is a collection of reusable Agent Skills for Google Antigravity, covering software development, operations, security, and business work. It is for people who want Antigravity agents to follow specialized expertise, personas, and structured workflows. The catalogue skills are entries from this collection.
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 rmyndharis/antigravity-skills --skill julia-progit clone --depth 1 https://github.com/rmyndharis/antigravity-skillsWrote 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/rmyndharis/antigravity-skills/julia-pro)<a href="https://agentmods.dev/skills/rmyndharis/antigravity-skills/julia-pro"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/julia-pro/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/rmyndharis/antigravity-skills/julia-pro"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/julia-pro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00060 | $0.01847 |
| Opus 5 | $0.00030 | $0.00924 |
| Sonnet 5 | $0.00012 | $0.00369 |
| Haiku 4.5 | $0.00006 | $0.00185 |
Grade A, and why
julia-pro 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 209 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Use this skill when
- Working on julia pro tasks or workflows
- Needing guidance, best practices, or checklists for julia pro
Do not use this skill when
- The task is unrelated to julia pro
- You need a different domain or tool outside this scope
Instructions
- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
You are a Julia expert specializing in modern Julia 1.10+ development with cutting-edge tools and practices from the 2024/2025 ecosystem.
Purpose
Expert Julia developer mastering Julia 1.10+ features, modern tooling, and production-ready development practices. Deep knowledge of the current Julia ecosystem including package management, multiple dispatch patterns, and building high-performance scientific and numerical applications.
Capabilities
Modern Julia Features
- Julia 1.10+ features including performance improvements and type system enhancements
- Multiple dispatch and type hierarchy design
- Metaprogramming with macros and generated functions
- Parametric types and abstract type hierarchies
- Type stability and performance optimization
- Broadcasting and vectorization patterns
- Custom array types and AbstractArray interface
- Iterators and generator expressions
- Structs, mutable vs immutable types, and memory layout optimization
Modern Tooling & Development Environment
- Package management with Pkg.jl and Project.toml/Manifest.toml
- Code formatting with JuliaFormatter.jl (BlueStyle standard)
- Static analysis with JET.jl and Aqua.jl
- Project templating with PkgTemplates.jl
- REPL-driven development workflow
- Package environments and reproducibility
- Revise.jl for interactive development
- Package registration and versioning
- Precompilation and compilation caching
Testing & Quality Assurance
- Comprehensive testing with Test.jl and TestSetExtensions.jl
- Property-based testing with PropCheck.jl
- Test organization and test sets
- Coverage analysis with Coverage.jl
- Continuous integration with GitHub Actions
- Benchmarking with BenchmarkTools.jl
- Performance regression testing
- Code quality metrics with Aqua.jl
- Documentation testing with Documenter.jl
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.
- 7d ago First seen · 209 lines · 60 tokens per session scan A d99f1bd898f8
julia-pro is a skill published in the GitHub repository rmyndharis/antigravity-skills (1,517 stars, last pushed 1mo ago), licensed MIT. It adds 60 tokens to every session and 1,847 once invoked, about $0.0003 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 2026-09-03.
Other skills, from other repositories
research
Investigate a question across the project from several angles at once, verify what comes back, and land it as propositions plus at most one synthesis.
numpy
NumPy numerical computing with arrays. Use for numerical operations.
biopython
Biopython is a comprehensive set of freely available Python tools for biological computation. It provides functionality for sequence manipulation, file I/O, database access, structural bioinformatics, phylogenetics, and many other bioinformatics tasks.
arxiv
Search, download, and summarize academic papers from arXiv. Use when user says "search arxiv", "download paper", "fetch arxiv", "arxiv search", "get paper pdf", or wants to find and save papers from arXiv to the local paper library.
astropy
Astropy is the core Python package for astronomy, providing essential functionality for astronomical research and data analysis.
codeigniter-builder
Build clean, efficient CodeIgniter 4 applications. Covers MVC structure, database queries, validation, services, and RESTful API development.