Quick surprise retention check. A 30-second mini-quiz to test if a concept is still in memory. Use for concepts with high stability that haven't been tested recently.
A minimal, non-intrusive retention check. Takes 30 seconds max.
Pick a concept from the recommendations (one that the API suggests for delayed_probe)
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]
Accept the answer. Grade it.
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>
}'
Choose based on concept type: