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From milan-jovanovic
Searches Milan Jovanovic's .NET blog (Nov 2025+) for Clean Architecture, DDD, CQRS, EF Core, ASP.NET Core patterns, code examples, and .NET 10 guidance. Invoke for .NET architecture.
How this skill is triggered — by the user, by Claude, or both
Slash command
/milan-jovanovic:milan-jovanovic-blogThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
This skill provides access to Milan Jovanovic's curated .NET blog content, filtered to November 2025+ (aligned with .NET 10 GA). It helps developers discover and apply proven patterns for Clean Architecture, Domain-Driven Design, CQRS, Entity Framework Core, and ASP.NET Core.
canonical/index.jsoncanonical/milanjovanovic-tech/blog/a-practical-demo-of-zero-downtime-migrations-using-password-hashing.mdcanonical/milanjovanovic-tech/blog/containerize-your-dotnet-applications-without-a-dockerfile.mdcanonical/milanjovanovic-tech/blog/dbcontext-is-not-thread-safe-parallelizing-ef-core-queries-the-right-way.mdcanonical/milanjovanovic-tech/blog/exploring-csharp-file-based-apps-in-dotnet-10.mdcanonical/milanjovanovic-tech/blog/how-to-build-a-high-performance-cache-without-external-libraries.mdcanonical/milanjovanovic-tech/blog/how-to-extract-structured-data-from-images-using-ollama-in-dotnet.mdcanonical/milanjovanovic-tech/blog/integrate-keycloak-with-aspnetcore-using-oauth-2.mdcanonical/milanjovanovic-tech/blog/server-sent-events-in-aspnetcore-and-dotnet-10.mdcanonical/milanjovanovic-tech/blog/solving-message-ordering-from-first-principles.mdcanonical/milanjovanovic-tech/blog/solving-the-distributed-cache-invalidation-problem-with-redis-and-hybridcache.mdcanonical/milanjovanovic-tech/blog/the-false-comfort-of-the-happy-path-decoupling-your-services.mdcanonical/milanjovanovic-tech/blog/the-idempotent-consumer-pattern-in-dotnet-and-why-you-need-it.mdcanonical/milanjovanovic-tech/blog/the-new-slnx-solution-format-migration-guide.mdcanonical/milanjovanovic-tech/blog/the-urge-to-build-something.mdcanonical/milanjovanovic-tech/blog/vertical-slice-architecture-where-does-the-shared-logic-live.mdcanonical/milanjovanovic-tech/blog/whats-new-in-ef-core-10-leftjoin-and-rightjoin-operators-in-linq.mdconfig/defaults.yamlmilan_jovanovic_api.pyreferences/sources.jsonThis skill provides access to Milan Jovanovic's curated .NET blog content, filtered to November 2025+ (aligned with .NET 10 GA). It helps developers discover and apply proven patterns for Clean Architecture, Domain-Driven Design, CQRS, Entity Framework Core, and ASP.NET Core.
Content scope: Articles published November 2025 and later, with promotional content stripped.
Use this skill when:
python scripts/core/find_articles.py search clean architecture cqrs
python scripts/core/find_articles.py tag ef-core
python scripts/core/find_articles.py resolve milanjovanovic-tech-blog-{slug}
python scripts/core/find_articles.py query "how to implement CQRS"
python scripts/core/find_articles.py list --sort date --limit 10
| Tag | Description |
|---|---|
clean-architecture | Clean/Onion/Hexagonal Architecture patterns |
ddd | Domain-Driven Design (aggregates, value objects, domain events) |
cqrs | Command Query Responsibility Segregation |
mediatr | MediatR library usage patterns |
ef-core | Entity Framework Core optimization and patterns |
aspnet-core | ASP.NET Core patterns and Minimal APIs |
modular-monolith | Modular Monolith architecture |
vertical-slice | Vertical Slice Architecture |
dotnet-10 | .NET 10 features and patterns |
aspire | .NET Aspire patterns |
result-pattern | Result pattern for error handling |
outbox-pattern | Transactional outbox pattern |
specification-pattern | Specification pattern |
repository-pattern | Repository pattern |
validation | FluentValidation patterns |
testing | Unit/integration testing patterns |
Windows PowerShell users: Avoid cd && python chains - use absolute paths or run from repo root to prevent path doubling issues.
Script location: All scripts are in scripts/ relative to skill root.
Canonical content: Scraped articles are stored in canonical/milanjovanovic-tech/blog/.
python scripts/management/manage_index.py stats
python scripts/management/manage_index.py verify
python scripts/management/refresh_index.py
For scraping operations, use the /milan-jovanovic:scrape-posts command which handles:
The scraping workflow uses pre-filtering to minimize firecrawl API calls:
| Scenario | Without Optimization | With Optimization | Savings |
|---|---|---|---|
| No new articles | 10+ requests | 1-2 requests | 80-90% |
| 1 new article | 10+ requests | 2-3 requests | 70-80% |
| Force (unchanged) | 10+ requests | 10+ requests (skips writes) | I/O savings |
How it works:
Before scraping, check what needs updating:
# Check for new articles since November 2025
python scripts/core/check_new_articles.py .claude/temp/listing.md --json --since 2025-11-01
# Force mode - include existing articles for re-check
python scripts/core/check_new_articles.py .claude/temp/listing.md --json --force
# URLs only output
python scripts/core/check_new_articles.py .claude/temp/listing.md --urls-only
Output includes to_scrape list with in_index and content_hash for smart handling.
For programmatic access, use the public API:
from milan_jovanovic_api import (
search_articles,
get_by_tag,
resolve_doc_id,
get_article_content,
)
# Search by keywords
results = search_articles(['clean-architecture', 'cqrs'])
# Get articles by tag
ef_articles = get_by_tag('ef-core')
# Resolve doc_id to path
path = resolve_doc_id('milanjovanovic-tech-blog-some-slug')
# Get article content
content = get_article_content('milanjovanovic-tech-blog-some-slug')
Scraped articles have promotional content removed:
All educational content, code blocks, and internal links are preserved.
/milan-jovanovic:scrape-posts - Scrape new articlesblog-advisor - Proactive project analysis and recommendationspython scripts/management/manage_index.py count/milan-jovanovic:scrape-postspython scripts/core/find_articles.py tag --listUse PowerShell or prefix Git Bash with MSYS_NO_PATHCONV=1:
MSYS_NO_PATHCONV=1 python scripts/core/find_articles.py search cqrs
Last Updated: 2025-12-27
npx claudepluginhub melodic-software/claude-code-plugins --plugin milan-jovanovicScrapes new articles from Milan Jovanovic's .NET blog (post-November 2025) using optimized pre-filtering from listing page, Firecrawl scraping, and Python scripts to target only new or changed content.
Guides .NET Core/ASP.NET patterns and best practices in architecture (Clean, MediatR, DI), EF Core databases, security (JWT, Identity), FluentValidation, error handling, xUnit testing, caching, and async. Activates on .csproj, .sln, or AspNetCore projects.
Provides C#/.NET patterns for production-grade APIs, MCP servers, and enterprise backends with DI, async, caching, EF Core/Dapper optimization, resilience, and testing.