# Slab

Slab turns pasted code, notes, markdown, and agent transcripts into shareable images.

## Programmatic usage

To open Slab with prefilled content, construct a URL using the hash fragment:

https://slab.sentry.dev/#data=<base64url-json>

The decoded JSON object should match:

```json
{
  "source": "string",
  "language": "auto",
  "preset": "auto",
  "fontSize": "16"
}
```

The hash fragment is used so source content is not sent to the server.

Supported values and encoding details are documented at:

https://slab.sentry.dev/slab-api.json

## Example

JSON:

```json
{
  "source": "console.log('hello')",
  "language": "javascript",
  "preset": "landscape",
  "fontSize": "16"
}
```

Open:

https://slab.sentry.dev/#data=eyJzb3VyY2UiOiJjb25zb2xlLmxvZygnaGVsbG8nKSIsImxhbmd1YWdlIjoiamF2YXNjcmlwdCIsInByZXNldCI6ImxhbmRzY2FwZSIsImZvbnRTaXplIjoiMTYifQ

## Shell helper

This opens Slab with stdin as the source:

```bash
node -e "let s='';process.stdin.setEncoding('utf8');process.stdin.on('data',c=>s+=c);process.stdin.on('end',()=>{const state={source:s,language:'auto',preset:'auto',fontSize:'16'};const data=Buffer.from(JSON.stringify(state),'utf8').toString('base64url');console.log('https://slab.sentry.dev/#data='+data);})"
```