# Microsoft Extensions

> Use the Microsoft.Extensions stack correctly across Generic Host, dependency injection, configuration, logging, options, HttpClientFactory, and other shared infrastructure patterns. USE FOR: wiring dependency injection, configuration, logging, or options; introducing Generic Host patterns into non-web .NET apps; cleaning up service registration, typed HTTP. DO NOT USE FOR: unrelated stacks; gener…

- **Type:** Skill
- **Install:** `agentstack add skill-managedcode-dotnet-skills-microsoft-extensions`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [managedcode](https://agentstack.voostack.com/s/managedcode)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [managedcode](https://github.com/managedcode)
- **Source:** https://github.com/managedcode/dotnet-skills/tree/main/catalog/Libraries/Microsoft-Extensions/skills/microsoft-extensions
- **Website:** https://skills.managed-code.com

## Install

```sh
agentstack add skill-managedcode-dotnet-skills-microsoft-extensions
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Microsoft.Extensions for .NET

## Trigger On

- wiring dependency injection, configuration, logging, or options
- introducing Generic Host patterns into non-web .NET apps
- cleaning up service registration, typed HTTP clients, or shared infrastructure code

## Workflow

1. Prefer the Generic Host for apps that need configuration, DI, logging, hosted services, or coordinated startup.
2. Keep service registration predictable: composition at the edge, concrete implementations hidden behind interfaces only where that abstraction buys flexibility.
3. Use options binding for structured configuration and validate configuration at startup when bad settings would fail later at runtime.
4. Prefer `IHttpClientFactory` and typed or named clients for outbound HTTP instead of ad-hoc singleton or per-call `HttpClient` usage.
5. Use logging categories and config-driven log levels rather than scattered ad-hoc logging behavior.
6. For Kubernetes-hosted services, prefer the stable `Microsoft.Extensions.Diagnostics.ResourceMonitoring.Kubernetes` package from the 10.7 line when CPU/memory request and limit metrics should come from pod resource quotas.
7. Avoid building mini-frameworks over Microsoft.Extensions unless the repo genuinely needs reusable composition primitives.

## Deliver

- clean host wiring and service registration
- configuration and logging that are observable and testable
- infrastructure code that fits naturally with the .NET stack

## Validate

- service lifetimes are correct
- configuration is strongly typed where it matters
- host setup remains easy to debug and reason about
- Kubernetes resource monitoring uses the stable quota-provider APIs when pod request/limit dimensions matter

## References

- [patterns.md](references/patterns.md) - DI patterns, Configuration patterns, Options pattern, Logging patterns, HttpClientFactory patterns, Hosted Service patterns
- [anti-patterns.md](references/anti-patterns.md) - Common mistakes with DI, configuration, options, logging, HttpClient, and hosted services

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [managedcode](https://github.com/managedcode)
- **Source:** [managedcode/dotnet-skills](https://github.com/managedcode/dotnet-skills)
- **License:** MIT
- **Homepage:** https://skills.managed-code.com

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-managedcode-dotnet-skills-microsoft-extensions
- Seller: https://agentstack.voostack.com/s/managedcode
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.