Screen Candidates on What Actually Matters
Generic hiring quizzes do not tell you whether a candidate can do your job. KnowStack turns your real Knowledge Base -- your products, processes, policies, and playbooks -- into AI-graded assessments. Send a link, let the candidate take the test on their own time, review the AI grade, override where judgment is needed, and release the result. No candidate account, no coordinating time zones, no copy-pasting questions from a Google doc.
TL;DR
Build a candidate assessment from your own Knowledge Base in minutes. AI generates questions from your actual product docs and processes, grades the answers, and lets your HR manager override any score. External candidates take the test from an email link -- no account required.
82% of bad hires trace back to a skills mismatch
Most hiring mistakes come from evaluating candidates on generic criteria instead of the specific knowledge they will actually use on the job.
— Leadership IQ hiring study
The Interview That Did Not Catch the Gap
A senior support hire interviewed great -- polished answers, strong references, ten years of experience. Three weeks in, they were still escalating tickets about your most-asked feature because nobody caught that they did not actually know how your product handled it. The interview tested their general support skills. It did not test whether they could answer your customers.
With KnowStack, you build a test from the same Knowledge Base your support team uses every day. The candidate has to demonstrate knowledge of your product, your policies, and your common scenarios -- not their interviewer's favorite brain teasers. You see the gap before you make the offer, not three weeks into onboarding.
The Panel That Cannot Agree
Five interviewers, five different impressions, five different scorecards. One thought the candidate was great. Two were on the fence. Two thought they were underqualified. You end up picking based on who talked loudest in the debrief, not on what the candidate actually knows. A month later you realize the strongest voice was the wrong one.
KnowStack gives your panel a shared, objective signal: a test generated from your KB, graded consistently by AI against the same reference material. Reviewers can still override scores with judgment and feedback -- but there is now a grounded baseline to compare candidates against, instead of five different vibes.
The Take-Home That Took the Candidate Two Weekends
You asked a candidate to build a sample deliverable so you could evaluate their work. It took them fourteen hours of unpaid weekend time. Good candidates drop out because they have other offers. The ones who stay complete the assignment and you evaluate it subjectively anyway, still unsure whether they actually know your product.
KnowStack gets you a real signal in an hour instead of a weekend. Candidates take a timed, KB-grounded test from a link in their inbox. They prove they can work with your actual content -- scenarios, policies, edge cases -- and you get a score plus per-question breakdown you can compare across candidates. Lower dropout, better signal, and no one spends their Saturday writing a sample artifact.
The Contractor Who Did Not Know Your Playbook
You are bringing on external contractors or agency staff who need to represent your brand and follow your processes. Onboarding them takes weeks, and you are never fully sure whether they understood your playbook until they have already made a mistake that a customer sees.
Send them a KnowStack assessment generated from your internal playbook before day one. You find out on day zero whether they understand the policies, the escalation paths, and the voice you expect -- while there is still time to adjust the engagement, add training, or pick a different contractor. The same test can be reused across every contractor you bring on.
The Problem
- Generic interview questions and off-the-shelf tests do not reflect your product, your processes, or the specific knowledge candidates will use on day one
- Take-home assignments cost candidates hours of unpaid work, drive dropouts, and still leave you evaluating subjectively
- Panel interviews produce inconsistent signal -- you end up picking based on who argued hardest in the debrief, not on what the candidate actually knows
How KnowStack Helps
- Generates a timed assessment directly from your Knowledge Base, so every question reflects knowledge the candidate will actually need on the job
- Sends external candidates a secure access link by email -- no KnowStack account needed, no scheduling, candidate takes the test when it fits their schedule
- AI grades open-ended answers against your KB content; HR managers can override any score and add feedback before releasing results