---
title: RCA Judgment Validation
colorFrom: blue
colorTo: gray
sdk: docker
pinned: false
---

# RCA judgment validation Label Studio Space

This Space runs Label Studio for human cross-validation of machine RCA labels on generated legal judgments.

## Required Hugging Face setup

1. Create the Space as a Docker Space.
2. Attach a small persistent Storage Bucket mounted at `/data`.
3. Add these Space secrets:
   - `LABEL_STUDIO_USERNAME`: admin email
   - `LABEL_STUDIO_PASSWORD`: admin password
   - `LABEL_STUDIO_USER_TOKEN`: stable API token, at least 5 characters
   - `SECRET_KEY`: stable Django secret key, so sessions survive restarts
4. Add these Space variables:
   - `LABEL_STUDIO_BASE_DATA_DIR=/data`
   - `STORAGE_PERSISTENCE=1`
   - `LABEL_STUDIO_ENABLE_LEGACY_API_TOKEN=true`
   - `LABEL_STUDIO_DISABLE_SIGNUP_WITHOUT_LINK=true`

The bootstrap creates three projects with ten tasks each:

- `RCA Validation - Annotator 1`
- `RCA Validation - Annotator 2`
- `RCA Validation - Annotator 3`

Each task shows the case metadata, generated/reference outcomes, model input case record, machine RCA, and generated/reference judgments side-by-side. Annotators answer:

- Rule stage
- Major error
- Minor error

## Local data generation

From the repository root:

```bash
python3 label_studio_space/scripts/prepare_tasks.py
```

This regenerates:

- `label_studio_space/data/tasks_all.json`
- `label_studio_space/data/tasks_annotator_1.json`
- `label_studio_space/data/tasks_annotator_2.json`
- `label_studio_space/data/tasks_annotator_3.json`

## Export annotations

After annotation, use Label Studio's project export UI, or call:

```bash
curl -H "Authorization: Token $LABEL_STUDIO_USER_TOKEN" \
  "$SPACE_URL/api/projects/<project_id>/export?exportType=JSON"
```

## Programmatic HF provisioning

If `huggingface_hub` is installed and authenticated, provision the bucket mount, variables, secrets, and optional factory rebuild with:

```bash
python3 label_studio_space/scripts/provision_hf_space.py \
  --space-id <namespace>/<space> \
  --bucket-id <namespace>/label-studio-data \
  --admin-email <admin@example.com> \
  --admin-password <password> \
  --admin-token <stable-token> \
  --factory-reboot
```

To create/upload/provision/restart in one step:

```bash
python3 label_studio_space/scripts/deploy_hf_space.py \
  --space-id <namespace>/<space> \
  --bucket-id <namespace>/label-studio-data \
  --admin-email <admin@example.com> \
  --admin-password <password> \
  --admin-token <stable-token>
```