# Crestapps Core Document Processing

> Skill for uploaded document ingestion, document RAG, readers, and document downloads in CrestApps.Core.

- **Type:** Skill
- **Install:** `agentstack add skill-crestapps-crestapps-agentskills-crestapps-core-document-processing`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [CrestApps](https://agentstack.voostack.com/s/crestapps)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **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-document-processing
- **Website:** https://crestapps.com/

## Install

```sh
agentstack add skill-crestapps-crestapps-agentskills-crestapps-core-document-processing
```

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

## About

# CrestApps.Core Document Processing - Prompt Templates

## Add Document Processing

You are a CrestApps.Core expert. Generate code and guidance for document ingestion and document RAG in CrestApps.Core.

### Guidelines

- Use `CrestApps.Core.AI.Documents` for the document pipeline.
- Add OpenXml and Pdf support explicitly because they are opt-in packages.
- Add Markdown normalization explicitly when Markdig-backed normalization is needed.
- Provide stores on the document-processing builder.
- Use `AddReferenceDownloads()` plus `AddDownloadAIDocumentEndpoint()` when citations should become downloadable links.

### Builder Registration

```csharp
builder.Services.AddCrestAppsCore(crestApps => crestApps
    .AddAISuite(ai => ai
        .AddMarkdown()
        .AddChatInteractions()
        .AddDocumentProcessing(documentProcessing => documentProcessing
            .AddEntityCoreStores()
            .AddOpenXml()
            .AddPdf()
            .AddReferenceDownloads()
        )
        .AddOpenAI()
    )
    .AddEntityCoreSqliteDataStore("Data Source=app.db")
);

app.AddChatApiEndpoints()
    .AddDownloadAIDocumentEndpoint();
```

### Built-in Reader Coverage

| Reader | Formats |
|---|---|
| Plain text reader | `.txt`, `.md`, `.json`, `.xml`, `.html`, `.htm`, `.log`, `.yaml`, `.yml`, `.csv` |
| OpenXml reader | `.docx`, `.pptx`, `.xlsx` |
| Pdf reader | `.pdf` |

### Built-in Document Tools

- `SearchDocumentsTool`
- `ReadDocumentTool`
- `ReadTabularDataTool`

## 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-document-processing
- 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%.