PJ / DEEPBRAINInterview decision lab
STUDY GUIDE · 23 OCT 2026
deepbrain.define-labs.com
Practice / PERSONAL STUDY · PUBLIC, SYNTHETIC & PROPOSED LABELS APPLY

THE MAIN POINT

Which stage deserves the next investigation?

0s

Uses your device's speech voices. No paid API. Test your speaking pace aloud.

E02 · Find the important handoff

Synthetic practice, not company performance.

One decision

Which stage deserves the next investigation?

Run the exact query

WITH b AS (SELECT * FROM v_task WHERE ('all'='all' OR persona='all') AND ('all'='all' OR workflow='all') AND ('all'='all' OR substr(signup_at,1,7)='all') AND date(created_at)>='2026-05-01' AND date(created_at)<'2026-10-01') SELECT workflow,COUNT(*) created,SUM(eligible) eligible,SUM(render_success) rendered,SUM(preview_at IS NOT NULL) previewed,SUM(exported_at IS NOT NULL) exported,SUM(reviewed_at IS NOT NULL) reviewed,SUM(accepted=1) accepted,SUM(distributed_at IS NOT NULL) distributed,SUM(confirmed_quality_use) used FROM b GROUP BY workflow;

Download SQL · Result CSV · Metabase saved question

Chart and reading

Synthetic practice chart

Use created tasks as the common denominator, then separate parallel review/export paths.

Challenge your recommendation

Could an expected rights or plan block explain the gap?

Guardrails: Review and export are parallel checkpoints; do not force them into a strictly ordered funnel.

Next evidence: Inspect real traces and task sessions; validate missing events before naming a defect.

PRD sections: 3, 6, 14. Open proposed PRD

Your spoken decision

State one takeaway, one caveat and one action in 30 seconds. Then stop.

Connect this finding

What this chart helps decide · Follow the connected decision · Canonical metric definitions

Optional model answer — try your own first

E02 · Find the important handoff

Decision: Which stage deserves the next investigation?

Readout: Use created tasks as the common denominator, then separate parallel review/export paths.

Actual query output (synthetic), first rows:

workflow created eligible rendered previewed exported reviewed accepted distributed used
api_template 390 361 329 289 222 187 149 96 79
document_avatar 373 351 307 257 201 172 132 86 62
dubbing 318 291 241 216 169 158 111 57 43

Model spoken answer: I would investigate the largest verified loss of useful work, then test one recovery change.

Caveat/counterargument: Could an expected rights or plan block explain the gap? Review and export are parallel checkpoints; do not force them into a strictly ordered funnel.

Next evidence: Inspect real traces and task sessions; validate missing events before naming a defect.

Deliberately left out: An explanation of every possible stage and model; the decision needs one verified bottleneck.

All exercises

Your practice notes

Write your answer first. Notes autosave locally; reading completion does not judge correctness.

Study tools