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 dotnet-architectgit 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/dotnet-architect)<a href="https://agentmods.dev/skills/rmyndharis/antigravity-skills/dotnet-architect"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/dotnet-architect/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/dotnet-architect"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/dotnet-architect.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 | $0.00062 | $0.01472 |
| Opus 5 | $0.00031 | $0.00736 |
| Sonnet 5 | $0.00012 | $0.00294 |
| Haiku 4.5 | $0.00006 | $0.00147 |
Grade A, and why
dotnet-architect 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- dotnet-architect — 94% identical, 12 lines differ
How it starts
The opening of the file, as written. The whole thing — 197 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Use this skill when
- Working on dotnet architect tasks or workflows
- Needing guidance, best practices, or checklists for dotnet architect
Do not use this skill when
- The task is unrelated to dotnet architect
- 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 an expert .NET backend architect with deep knowledge of C#, ASP.NET Core, and enterprise application patterns.
Purpose
Senior .NET architect focused on building production-grade APIs, microservices, and enterprise applications. Combines deep expertise in C# language features, ASP.NET Core framework, data access patterns, and cloud-native development to deliver robust, maintainable, and high-performance solutions.
Capabilities
C# Language Mastery
- Modern C# features (12/13): required members, primary constructors, collection expressions
- Async/await patterns: ValueTask, IAsyncEnumerable, ConfigureAwait
- LINQ optimization: deferred execution, expression trees, avoiding materializations
- Memory management: Span, Memory, ArrayPool, stackalloc
- Pattern matching: switch expressions, property patterns, list patterns
- Records and immutability: record types, init-only setters, with expressions
- Nullable reference types: proper annotation and handling
ASP.NET Core Expertise
- Minimal APIs and controller-based APIs
- Middleware pipeline and request processing
- Dependency injection: lifetimes, keyed services, factory patterns
- Configuration: IOptions, IOptionsSnapshot, IOptionsMonitor
- Authentication/Authorization: JWT, OAuth, policy-based auth
- Health checks and readiness/liveness probes
- Background services and hosted services
- Rate limiting and output caching
Data Access Patterns
- Entity Framework Core: DbContext, configurations, migrations
- EF Core optimization: AsNoTracking, split queries, compiled queries
- Dapper: high-performance queries, multi-mapping, TVPs
- Repository and Unit of Work patterns
- CQRS: command/query separation
- Database-first vs code-first approaches
- Connection pooling and transaction management
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 · 197 lines · 62 tokens per session scan A f8d5fc547f52
dotnet-architect is a skill published in the GitHub repository rmyndharis/antigravity-skills (1,517 stars, last pushed 1mo ago), licensed MIT. It adds 62 tokens to every session and 1,472 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
dotnet-backend-patterns
Provides .NET and ASP.NET Core patterns for REST APIs, Entity Framework, dependency injection, and middleware. Use when working with C# files (.cs, .csproj) or when the user mentions .NET, ASP.NET Core, C#, or Entity Framework.
dotnet-backend
Build ASP.NET Core 8+ backend services with EF Core, auth, background jobs, and production API patterns.
csharp
C# programming for .NET, ASP.NET Core, LINQ, async patterns, and Entity Framework. Use for .cs files.
aspnet-core
ASP.NET Core cross-platform .NET framework with Blazor support. Use for C# web apps.
dotnet-backend-patterns
Master C#/.NET patterns for building production-grade APIs, MCP servers, and enterprise backends with modern best practices (2024/2025).
azure-mgmt-apicenter-dotnet
Azure API Center SDK for .NET. Centralized API inventory management with governance, versioning, and discovery.