Delayed Probe

A minimal, non-intrusive retention check. Takes 30 seconds max.

How It Works

1. Pick a concept from the recommendations (one that the API suggests for delayed_probe)

2. Present ONE question, framed as a casual check:

Quick check — You learned about [concept] [X days ago]. Your predicted recall is [Y%].

[One clear question about the concept]

3. Accept the answer. Grade it.

4. Record via the probes endpoint:

curl -s -X POST -H "x-api-key: $TOKEN" -H "Content-Type: application/json" \
  https://cognition-api.fly.dev/v1/probes/outcome \
  -d '{
    "probe_id": "probe-<uuid>",
    "concept_id": "<concept_id>",
    "horizon_days": <days_since_learned>,
    "predicted_recall": <predicted_R>,
    "result_correct": <true/false>,
    "result_score": <0.0-1.0>,
    "result_confidence": <user_confidence>
  }'