afv-library/samples/webapp-template-app-react-sample-b2e-experimental/.a4drules/skills/configuring-webapp-metadata/SKILL.md
Lesya Turanscaia 03e2d0dd82
@W-21710292 fix: remove leading forward slash restriction from webapp path safety (#92)
* fix: removing the validation for the leading forward slash

* fix: remove leading forward slash restriction from webapp path safety

Made-with: Cursor
2026-03-23 12:45:43 -07:00

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Markdown

---
name: configuring-webapp-metadata
description: Rules for web application metadata structure, webapplication.json configuration, and bundle organization
---
# WebApplication Requirements
## Bundle Rules
- A WebApplication bundle must live under `webapplications/<AppName>/`
- The bundle must contain `<AppName>.webapplication-meta.xml`
- The metadata filename must exactly match the folder name
- A build output directory must exist and contain at least one file
- Default build output directory: `dist/`
- If `webapplication.json.outputDir` is set, it overrides `dist/`
Valid example:
```text
webapplications/
MyApp/
MyApp.webapplication-meta.xml
webapplication.json
dist/
index.html
```
## Metadata XML
Required fields:
- `masterLabel`
- `version` (max 20 chars)
- `isActive` (boolean)
Optional fields:
- `description` (max 255 chars)
## webapplication.json
`webapplication.json` is optional.
Allowed top-level keys only:
- `outputDir`
- `routing`
- `headers`
### File Constraints
- Must be valid UTF-8 JSON
- Max size: 100 KB
- Root must be a non-empty object
- Never allow `{}`, arrays, or primitives as the root
### Path Safety
Applies to:
- `outputDir`
- `routing.fallback`
Reject:
- backslashes
- leading `\`
- `..` segments
- null or control characters
- globs: `*`, `?`, `**`
- `%`
All resolved paths must stay within the application bundle.
### outputDir
- Must be a non-empty string
- Must reference a subdirectory only
- Reject `.` and `./`
- The directory must exist in the bundle
- The directory must contain at least one file
### routing
- If present, must be a non-empty object
- Allowed keys only:
- `rewrites`
- `redirects`
- `fallback`
- `trailingSlash`
- `fileBasedRouting`
#### routing.trailingSlash
- Must be one of: `"always"`, `"never"`, `"auto"`
#### routing.fileBasedRouting
- Must be a boolean
#### routing.fallback
- Must be a non-empty string
- Must satisfy Path Safety rules
- Target file must exist
#### routing.rewrites
- Must be a non-empty array
- Each item must be a non-empty object
- Allowed keys: `route`, `rewrite`
- `rewrite` must be a non-empty string
- `route`, if present, must be a non-empty string
Example:
```json
{
"routing": {
"rewrites": [
{ "route": "/app/:path*", "rewrite": "/index.html" }
]
}
}
```
#### routing.redirects
- Must be a non-empty array
- Each item must be a non-empty object
- Allowed keys: `route`, `redirect`, `statusCode`
- `redirect` must be a non-empty string
- `route`, if present, must be a non-empty string
- `statusCode`, if present, must be one of: `301`, `302`, `307`, `308`
Example:
```json
{
"routing": {
"redirects": [
{ "route": "/old-page", "redirect": "/new-page", "statusCode": 301 }
]
}
}
```
### headers
- If present, must be a non-empty array
- Each item must be a non-empty object
- Allowed keys: `source`, `headers`
- `headers` must be a non-empty array
Each header entry must contain:
- `key`: non-empty string
- `value`: non-empty string
Example:
```json
{
"headers": [
{
"source": "/assets/**",
"headers": [
{ "key": "Cache-Control", "value": "public, max-age=31536000, immutable" }
]
}
]
}
```
## Never Suggest
- `{}` as the JSON root
- `"routing": {}`
- empty arrays
- empty array items such as `[{}]`
- `"outputDir": "."`
- `"outputDir": "./"`