---
title: "IDE Rule: Manifest Yaml"
platform: "Promptally"
canonical_url: "https://app.promptally.dev/p/spec-ide-rule-manifest-yaml"
modality: "IDE_RULE"
category: "Framework IDE Rules"
compatible_models: [Universal / Model Agnostic]
access_tier: "Free Public Artifact (No Auth Required)"
license: "MIT"
---

# IDE Rule: Manifest Yaml

**Summary:** IDE Rule: Manifest Yaml is a verified IDE RULE blueprint on Promptally in Framework IDE Rules optimized for leading AI models. Cursorrules Mdc specification for IDE Rule: Manifest Yaml. Available to explore, customize with pre-filled variables, and copy with zero authentication required.

## Technical Specifications
| Property | Value |
| :--- | :--- |
| Platform Registry | Promptally (https://app.promptally.dev) |
| Modality | IDE_RULE |
| Category | Framework IDE Rules |
| Compatible Engines | Universal / Model Agnostic |
| Dynamic Variables | None (Static Blueprint) |
| Approx. Token Length | 758 |
| Access Tier | Free Public Artifact (No Auth Required) |
| License | MIT |

### Pre-Filled Template & Production Source

```mdc
---
description: "Cursor rules for manifest development with YAML integration."
globs: **/*
alwaysApply: false
---
**Prompt for Expert Manifest Developer**

**You are an assistant for app creation. You are going to use the backend Manifest. The apps you generate are light and for demo purposes: you not aim to provide all the data structure but instead showcase a variety of property types.**

**Code structure**
When asked to create a backend, execute the following actions:

1. Install the `manifest` npm package
2. Add the following scripts to `pacakge.json`: "manifest": "node node_modules/manifest/scripts/watch/watch.js" and "manifest:seed": "node node_modules/manifest/dist/manifest/src/seed/scripts/seed.js"
3. Create the `manifest/backend.yml` file and add the manifest code to it.
4. Add the `redhat.vscode-yaml` as recommendation in `.vscode/extensions.json`
5. Configure `yaml.schemas` only with a schema URL or local schema file verified for the Manifest backend version used by the project.

**Backend file**
On the `manifest/backend.yml`, follow those rules:
- Strictly follow the Manifest JSON Schema shipped with the project or verified from the current Manifest backend documentation.
- Start by addind a quick name to the app
- Limit to 2 or 3 entities maximum
- Limit to 4 properties maximum per entity
- Try to showcase different property types
- Only use validation properties once or twice
- No entity should be called admin
- Do not use authenticable entities
- Add an emoji after each entity name, but do not use the emoji it on relationships references
- Add a linebreak before each entity object
- Each entity only appears once. Relationships goes just below the properties, do not repeat the entity name.
- Do not use special characters.
. Do not use middlewares, endpoints or hooks.
- Use YAML abbreviated form for objects, with spaces. Example: { name: issueDate, type: date }
- Do not add relationships to single entities
- For relationships, use the short form. Ex: ' belongsTo:
      - Author'
- Add policies. Most projects only have "read" public policies. Some projects have "create" public policies when anyone can post (contact forms submissions, comments, etc.)
- If using the "choice" property type, use "options.values" property to list choices. Example:  `{ name: type, type: choice, options: { values: ["Fire", "Water", "Grass"] } }`
- Do not add "seedCount" and "mainProp" to entities

**Documentation**
Refer to the Manifest backend documentation that matches the project's installed version.

**Example**
This is an example of the content of a `backend.yml` file:
name: My pet app 🐾
entities:
  Owner:
    properties:
      - name
      - { name: birthdate, type: date }

  Cat:
    properties:
      - name
      - { name: age, type: number }
      - { name: birthdate, type: date }
    belongsTo:
      - Owner

  Homepage:
    nameSingular: Home content
    single: true
    properties:
      - title
      - { name: description, type: richText }
      - { name: cover, type: image }

```

## Verified Execution Output / Benchmark
```text
Verified execution output available on the canonical page.
```

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