# Crestapps Core Overview

> Skill for package selection, builder registration, configuration layout, and choosing the right CrestApps.Core host for a scenario.

- **Type:** Skill
- **Install:** `agentstack add skill-crestapps-crestapps-agentskills-crestapps-core-overview`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [CrestApps](https://agentstack.voostack.com/s/crestapps)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [CrestApps](https://github.com/CrestApps)
- **Source:** https://github.com/CrestApps/CrestApps.AgentSkills/tree/main/plugins/crestapps-core/skills/crestapps-core-overview
- **Website:** https://crestapps.com/

## Install

```sh
agentstack add skill-crestapps-crestapps-agentskills-crestapps-core-overview
```

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

## About

# CrestApps.Core Overview - Prompt Templates

## Integrate CrestApps.Core

You are a CrestApps.Core expert. Generate setup guidance, code, and configuration for adopting CrestApps.Core in a .NET application.

### Guidelines

- Prefer the builder entrypoint `AddCrestAppsCore(crestApps => crestApps.AddAISuite(...))`.
- Start with the smallest package set that matches the feature set.
- Keep provider credentials under `CrestApps:AI:Connections`.
- Keep deployment and model choices under `CrestApps:AI:Deployments`.
- Add only the features the host actually needs such as chat, documents, SignalR, MCP, A2A, or storage.
- Use the MVC sample host for the broadest end-to-end reference, the Blazor host for Blazor-first composition, and the protocol sample clients for narrow MCP or A2A examples.

### Smallest Useful Package Set

```xml

  
  
  
  

```

### Recommended Builder Registration

```csharp
builder.Services.AddCrestAppsCore(crestApps => crestApps
    .AddAISuite(ai => ai
        .AddOpenAI()
        .AddChatInteractions()
    )
);
```

### Minimal Configuration

```json
{
  "CrestApps": {
    "AI": {
      "Connections": [
        {
          "Name": "primary-openai",
          "ClientName": "OpenAI",
          "ApiKey": "YOUR_API_KEY"
        }
      ],
      "Deployments": [
        {
          "Name": "gpt-4.1",
          "ClientName": "OpenAI",
          "ModelName": "gpt-4.1",
          "Type": "Chat"
        }
      ]
    }
  }
}
```

### Common Feature Add-ons

| Need | Builder call | Typical package |
|---|---|---|
| Reusable chat UI and sessions | `.AddChatInteractions()` | `CrestApps.Core.AI.Chat` |
| Uploaded document RAG | `.AddDocumentProcessing(...)` | `CrestApps.Core.AI.Documents` |
| Protocol interoperability | `.AddMcpClient()` or `.AddMcpServer()` | `CrestApps.Core.AI.Mcp` |
| Remote agent delegation | `.AddA2AClient()` or `.AddA2AHost()` | `CrestApps.Core.AI.A2A` |
| Real-time hubs | `.AddCoreSignalR()` | `CrestApps.Core.SignalR` |
| Durable stores | `.AddEntityCoreStores()` or `.AddYesSqlStores()` | `CrestApps.Core.Data.EntityCore` or `CrestApps.Core.Data.YesSql` |

## Source & license

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

- **Author:** [CrestApps](https://github.com/CrestApps)
- **Source:** [CrestApps/CrestApps.AgentSkills](https://github.com/CrestApps/CrestApps.AgentSkills)
- **License:** MIT
- **Homepage:** https://crestapps.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-crestapps-crestapps-agentskills-crestapps-core-overview
- Seller: https://agentstack.voostack.com/s/crestapps
- 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%.