> For the complete documentation index, see [llms.txt](https://docs.flexbase.in/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flexbase.in/flexbase-mcp-ai-prompts/new-application-add-moduels-features-to-existing-application-prompts-md-file.md).

# New Application / Add Moduels-Features to Existing Application Prompts - md file

> Design new applications or add modules/features to existing applications using DDD principles, and generate structured Markdown output.

## When to Use

* User describes a **new business application** they want to build
* User wants to **add new modules** to an existing application
* User wants to **add new features** to an existing module
* User explains **business flows or processes** without existing code/BRD

## How to Use

Tell your AI agent what you want to build. It will apply DDD principles and generate structured FlexBase-ready Markdown.

**Example prompts you can give your AI agent:**

```
Design a new scheduling app for healthcare with patient, provider, and appointment management
```

```
Add a new Payments module to my existing application
```

```
Add invoice generation and reporting features to the Orders module
```

```
Convert these user stories into FlexBase features
```

```
Analyze this business flow and provide a quick FlexBase design
```

***

## Task Catalog

### Task 1: Complete New Application Design

**Goal:** Design an entire new application with multiple modules\
**User provides:** Business application requirements\
**Output:** Organized Markdown with modules, features, validations, events/subscribers, domain services

### Task 2: New Module Design (Add to Existing App)

**Goal:** Design a new module for an existing application\
**User provides:** Module requirements and existing application context\
**Output:** Module Markdown with features, validations, events/subscribers, cross-module integration

### Task 3: New Feature Design (Add to Existing Module)

**Goal:** Design specific features for an existing module\
**User provides:** Feature requirements and target module name\
**Output:** Feature Markdown with validations, events/subscribers per feature

### Task 4: Quick Flow Analysis

**Goal:** Quick analysis of a simple business flow\
**User provides:** Business flow description\
**Output:** Concise Markdown with module, features, entities, validations, events

### Task 5: User Story to Feature Mapping

**Goal:** Convert user stories into FlexBase features\
**User provides:** User stories\
**Output:** Mapped features with operation types, validations, events

### Task 6: API & Integration Design

**Goal:** Design external API integrations\
**User provides:** API descriptions or Swagger/OpenAPI specs\
**Output:** RestServiceModel domain services + integration features

### Task 7: Scheduled Task / CronJob Design

**Goal:** Design automated/scheduled features\
**User provides:** Scheduled process requirements\
**Output:** CronJob features with triggers and subscribers

### Task 8: Event-Driven Architecture Design

**Goal:** Design complex event chains with multi-level subscribers\
**User provides:** Event flow description\
**Output:** Event hierarchy with first-level and second-level subscribers

### Task 9: Screen / UI Flow Design

**Goal:** Design UI layouts and screen flows from requirements\
**User provides:** Application requirements with UI descriptions\
**Output:** Screen flow metadata enriching features with layout information

***

## Key Rules (Applied Automatically)

* **Module names PLURAL** PascalCase (e.g., `Orders`, `Customers`, `Payments`)
* **Feature names operation-centric** PascalCase (e.g., `CreateOrder`, `GetCustomerById`)
* **DDD principles** — bounded contexts → modules, aggregate roots → domain entities
* **Valid operation types:** CREATE, UPDATE, DELETE, SOFTDELETE, GETPAGEDLIST, GETLIST, GETBYID, GETSINGLE
* **featureType:** WebAPI (user-initiated) or CronJob (scheduled)
* **Large files split automatically** — per-module files

***

## Related

* **Generate JSON from Markdown:** [New Application → JSON](/flexbase-mcp-ai-prompts/new-application-add-moduels-features-to-existing-application-prompts-json-file.md)
* **After extraction:** [Implementation Completion](/flexbase-mcp-ai-prompts/implementation-completion-prompts.md)