A six-month proof-of-concept is the wrong instrument for an AI recruiting agent. You don't need that long to know if it works on your desk — and the longer you stretch the eval, the more the vendor will configure their way around your real questions. Two weeks against one desk, three numbers, one clean decision.
This is the methodology I'd run if I were buying agentic recruitment for an agency tomorrow. It's tight on purpose. Long POCs reward sales, not buyers.
Why two weeks is the right window
Week one is calibration noise. Tone, brief format, hiring manager preferences — the agent learns most of this in the first 5-7 days. Week two is the first real signal. Anything beyond that is either incremental polish or the vendor's services team papering over a structural problem.
SHRM benchmarks put average European time-to-shortlist at 8-12 days for agency roles. Two weeks gives you a full cycle of agent → human review → hiring manager feedback. That's the unit of work that matters.
If you can't see a real signal in two weeks of honest use, the agent doesn't fit your desk. More time won't fix that.
The setup: one desk, one role, three numbers
Pick a desk that's representative — not your hardest mandate (you'll blame the tool when it fails), not your easiest (you'll falsely conclude it works). Mid-difficulty role on a desk run by a mid-tenure recruiter is the right signal.
The three numbers you track
| Metric | How to measure | Pass threshold |
|---|---|---|
| Time-to-shortlist | Brief sent to top-10 ready | ≥50% faster than baseline |
| HM acceptance rate | % of shortlist HM wants to interview | ≥70% |
| Reply rate on outreach | % reply within 7 days | Within 10% of best human on team |
Three numbers, not twelve. Add a fourth and you'll waste week one debating measurement instead of running the experiment.
Day-by-day playbook
Days 1-2: Setup and brief
Onboard the agent. Connect LinkedIn, your existing CRM, and email. Write a single 6-line brief in plain language. Don't over-engineer the prompt — agents that need 800-word system prompts to behave aren't ready.
Days 3-5: First shortlist + iteration
Agent generates the first shortlist. Recruiter reviews top 20 in a 15-minute morning session. Flag false positives explicitly so the system learns. LinkedIn Talent data is consistent: the feedback loop in the first 72 hours determines 80% of subsequent quality.
Days 6-9: Outreach in flight
Approve the outreach sequence. Watch tone calibration carefully — check the first 5 messages before they go out, then sample randomly. Read replies for tone fit. Adjust voice if needed.
Days 10-12: Hiring manager review
Send shortlist to HM. Measure acceptance rate honestly: how many do they actually want to interview? Below 70% means the agent is sourcing for the wrong brief, not the wrong role.
Days 13-14: Decision
Sit down with the three numbers. Two out of three pass = buy. One of three pass = needs more configuration. Zero of three pass = wrong tool for this desk.
The traps to avoid
Letting the vendor pick the desk
If the vendor proposes the role, you'll get a curated win. Pick your own representative mandate, not theirs.
Measuring activity instead of outcomes
"How many profiles did the agent surface" is a vanity metric. Hiring manager acceptance rate is the only number that maps to placements.
Running with no baseline
Before day one, document: how long does your best recruiter currently take to shortlist this role? What's their typical reply rate? Without that, the comparison is air.
Ignoring tone calibration
A perfectly accurate sourcing agent paired with creepy outreach kills your brand in two weeks. Spend disproportionate review time on the message templates.
What good looks like at day 14
From the agencies running this methodology with Yena:
- Time-to-shortlist down 60-75% vs baseline
- HM acceptance rate 75-85% on representative roles
- Reply rate within 5% of the best human recruiter
- Recruiter spent 60-90 minutes total on the search
Those numbers don't show up in vendor decks because vendors test against perfect roles. Run the test on a real desk, and the numbers above are the honest range you should expect from a working agent.
FAQ
Can I run this test against multiple roles in parallel?
Yes, but the signal gets muddier. For your first eval, one role, one recruiter, two weeks. Scale after you have a baseline.
What if the agent fails the test — is the tech not ready?
Not necessarily. Different agents fit different markets. A platform that fails on UK exec search may shine on Polish IT staffing. The right conclusion is "wrong fit for this desk," not "agents don't work."
How do I get a meaningful 14-day trial from a vendor?
Ask for it explicitly. Most modern platforms (including Yena) ship a 10-14 day trial without a sales call. If a vendor only offers 30-90 day paid POCs, walk.
Should I include outreach in the 14-day test?
Yes. Sourcing without outreach is half the agent. The reply rate measurement is the most honest signal of message quality.
What's the failure mode of this methodology?
You'll over-index on the specific desk's quirks. Run a second 14-day cycle on a different desk before company-wide rollout.
Run the test, trust the numbers
If you want to run this on Yena, the 10-day trial is enough for the calibration phase plus one full cycle. The agent layer is in the free trial — not behind an enterprise gate — because we built the methodology around recruiters running their own honest test, not sales decks.
14 days. Three numbers. One decision.