Knowledge Gap Detection
Find Every Knowledge Gap Before the Exam Does
Suture audits your second brain for you — flagging notes that are outdated, untested, isolated, or on topics you keep asking Osler about — so you can close the gap while it’s still cheap to close.
Priority-ordered — outdated first. Every flag says exactly why it was raised.
The problem
You Don’t Know What You Don’t Know
Gaps don’t announce themselves. They hide inside notes that look complete, feel familiar and have never actually been tested — until an exam or a patient asks the question.
- 1
Confidence is a poor auditor
Research on physician self-assessment shows it often disagrees with observed performance — how covered a topic feels is not evidence that it is.
- 2
Notes rot quietly
A note citing a guideline version that has since changed looks exactly like a current one. Nothing about the page says “stale”.
- 3
Written once, never tested
A note you have never quizzed yourself on is a claim of knowledge, not proof of it — and orphan notes with no links fade from view entirely.
Four signals
Four Ways A Gap Shows Itself
Suture watches for four gap signals, priority-ordered: outdated — a note cites a guideline version that has since changed; revisited — you keep asking Osler about a topic you already have a note on; untested — notes you’ve never quizzed yourself on; and isolated — notes with no links to anything else. Each flag tells you exactly why it was raised.
- Outdated — the cited guideline version has changed
- Revisited — you keep asking Osler about it anyway
- Untested — you’ve never quizzed yourself on it
- Isolated — the note links to nothing else
“Heart failure — GDMT overview” cites ESC Heart Failure 2021. A newer version has been published — the note doesn’t know that yet.
The cross-app tell
Your Questions Reveal Your Gaps
The strongest tell comes from across the ecosystem: when you keep asking Osler about a topic you already wrote a note on, that note clearly didn’t stick. Suture connects the two — a pattern of gold Osler questions becomes a violet flag on the exact note that needs work.
- Repeat Osler questions are matched to your existing notes
- The flag lands on the exact note that didn’t stick
- A signal no standalone notes app can produce
- Your asking behaviour becomes study guidance
When do I start anticoagulation in new AF?
Monday
CHA₂DS₂-VASc — when is a DOAC indicated?
Wednesday
Today
Atrial fibrillation — anticoagulation
Last edited 5 months ago
Quiet and private
An Audit That Never Slows You Down
Three of the four signals are pure database logic — fast, private, and free of AI cost. The revisited check runs a cheap similarity gate before any AI confirms a match, and the whole audit runs off the chat path. Your questions get answered at full speed; the gap report assembles quietly in the background.
- Three of four signals are pure database logic
- Cheap similarity gate before any AI confirmation
- Runs off the chat path — answers never wait
- Fast, private, and quiet by design
Your chat
“First-line treatment for status epilepticus?”
Database checks
No AIOutdated, untested and isolated — pure queries
Similarity gate
GatedA cheap filter runs before any AI is involved
AI confirms
Last stepOnly revisited matches that pass the gate
Three of four signals never touch AI — computed from your own notes and activity.
From gap to fixed
Every Flag Comes With A Next Step
A gap report is only useful if it ends in action. From any flagged note, jump straight in to update it, quiz yourself on it to turn untested into tested, or link it to related notes so it stops being an island. Each fix makes your second brain more complete than it was.
- Jump straight to the flagged note
- Quiz yourself to close the untested gap
- Link isolated notes back into the graph
- Every fix strengthens your second brain
Nephrotic syndrome
Flagged by your gap report
Quiz complete — 8/10 on this note just now
Stop Guessing. Start Auditing.
Feeling prepared and being prepared are different states. Four priority-ordered signals show you which one you're in — note by note, before the exam runs the same audit for you.
Notes on trust
- Hoping your notes are current
- Rereading what you already know
- Asking Osler the same thing twice
- Untested notes counted as knowledge
- Orphan notes lost in the library
- Discovering gaps on exam day
With Gap Detection
- Outdated guideline citations flagged
- Directed to what’s actually weak
- Repeat questions become note flags
- Never-quizzed notes surfaced
- Isolated notes pulled back into the graph
- Fixing gaps the week before
Built For Exam Season And Beyond
Four priority-ordered signals audit your second brain continuously — the same system that catches an untested note before finals catches a stale one in practice.
From Gap To Fixed
The audit runs quietly in the background — your only job is the fix, and every fix leaves your second brain stronger than the flag found it.
- 1
Detect
Suture scans your notes for the four gap signals — quietly.
- 2
Review
Each flagged note shows exactly why it was flagged.
- 3
Act
Update the note, quiz yourself on it, or link it to related notes.
- 4
Strengthen
Every closed gap makes your second brain more complete.
Grounded in evidence
Why an external audit beats a feeling of preparedness — the research behind gap detection.
Questions about Knowledge Gap Detection
Find What’s Missing Before The Exam Does
Let your second brain audit itself — four signals, clear reasons, and a next step for every gap it finds.
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