# space.opendeck.progress

> FSRS scheduling state for a single card.

- Kind: record
- Record key: tid
- Authority: opendeck.space
- Lexicon: 1
- Published by [opendeck.space](https://lexicon.garden/identity/did:plc:5xoilbawtptc3wha4zplgkwd), the NSID's authority

## Links

- [Documentation](https://lexicon.garden/lexicon/did:plc:5xoilbawtptc3wha4zplgkwd/space.opendeck.progress)
- [Schema JSON](https://lexicon.garden/lexicon/did:plc:5xoilbawtptc3wha4zplgkwd/space.opendeck.progress/schema.json)
- [Analytics](https://lexicon.garden/lexicon/did:plc:5xoilbawtptc3wha4zplgkwd/space.opendeck.progress/analytics)

## Record (`space.opendeck.progress`)

Type: record · key tid

### Properties

- `card` (string · at-uri, required): AT-URI of the card this tracks.
  - Constraints: maxLength: 10000, maxGraphemes: 1000
- `deck` (string): Record key (rkey) of the owning deck.
  - Constraints: maxLength: 640, maxGraphemes: 64
- `difficulty` (string, required): FSRS difficulty (float stored as string).
  - Constraints: maxLength: 10000, maxGraphemes: 1000
- `direction` (string): Study direction this schedule tracks; absent means forward (front to back).
  - Constraints: enum: forward | reverse
- `dueAt` (string · datetime, required): When the card should be shown next.
- `firstReviewedAt` (string · datetime): When the card was first rated; absent for cards studied before this was recorded.
- `lapses` (integer, required): Number of times a learned card was forgotten.
- `lastRating` (string)
  - Constraints: enum: again | hard | good | easy
- `lastReviewedAt` (string · datetime, required)
- `repetitions` (integer, required): Number of times the card was rated.
- `shortTermStep` (integer): Index into the short-term intervals while learning or relearning; absent otherwise.
- `stability` (string, required): FSRS stability (float stored as string).
  - Constraints: maxLength: 10000, maxGraphemes: 1000
- `state` (string, required)
  - Constraints: enum: new | learning | review | relearning

## Schema

```json
{
  "$type": "com.atproto.lexicon.schema",
  "defs": {
    "main": {
      "description": "FSRS scheduling state for a single card.",
      "key": "tid",
      "record": {
        "properties": {
          "card": {
            "description": "AT-URI of the card this tracks.",
            "format": "at-uri",
            "maxGraphemes": 1000,
            "maxLength": 10000,
            "type": "string"
          },
          "deck": {
            "description": "Record key (rkey) of the owning deck.",
            "maxGraphemes": 64,
            "maxLength": 640,
            "type": "string"
          },
          "difficulty": {
            "description": "FSRS difficulty (float stored as string).",
            "maxGraphemes": 1000,
            "maxLength": 10000,
            "type": "string"
          },
          "direction": {
            "description": "Study direction this schedule tracks; absent means forward (front to back).",
            "enum": [
              "forward",
              "reverse"
            ],
            "type": "string"
          },
          "dueAt": {
            "description": "When the card should be shown next.",
            "format": "datetime",
            "type": "string"
          },
          "firstReviewedAt": {
            "description": "When the card was first rated; absent for cards studied before this was recorded.",
            "format": "datetime",
            "type": "string"
          },
          "lapses": {
            "description": "Number of times a learned card was forgotten.",
            "type": "integer"
          },
          "lastRating": {
            "enum": [
              "again",
              "hard",
              "good",
              "easy"
            ],
            "type": "string"
          },
          "lastReviewedAt": {
            "format": "datetime",
            "type": "string"
          },
          "repetitions": {
            "description": "Number of times the card was rated.",
            "type": "integer"
          },
          "shortTermStep": {
            "description": "Index into the short-term intervals while learning or relearning; absent otherwise.",
            "type": "integer"
          },
          "stability": {
            "description": "FSRS stability (float stored as string).",
            "maxGraphemes": 1000,
            "maxLength": 10000,
            "type": "string"
          },
          "state": {
            "enum": [
              "new",
              "learning",
              "review",
              "relearning"
            ],
            "type": "string"
          }
        },
        "required": [
          "card",
          "dueAt",
          "stability",
          "difficulty",
          "repetitions",
          "lapses",
          "state",
          "lastReviewedAt"
        ],
        "type": "object"
      },
      "type": "record"
    }
  },
  "id": "space.opendeck.progress",
  "lexicon": 1
}
```