NewThe beta is open. Everything is free while we build.See what's included →

Know if it's worth building.
Then go get your first 100 users.

Research agents read what people actually posted about your problem on Reddit, Hacker News, X and Product Hunt, and every claim links to the post it came from. Then Deno drafts up to thirty days of posts in your voice, each one checked before you press send.

Validate an idea — freeRead a sample verdict

NO CARD · NO AUTO-POSTING · EVER

Example run
PIVOT
65%confidence, computed from the evidence
✓ Sources collected · 89 posts
✓ Citation judge · 21 claims verified
✓ Critic (adversarial)
⟳ Verdict
Day 06 · r/SideProject
I spent $14,000 building a feature nobody used. Here's the teardown.
Pulled from your Story Bank · 1 metric, 1 scar, 0 outbound links.
Ban Risk91
u/yourhandle · 1.2k karma
Slop scrub · 20 patterns
In today's fast-paced world −5
It's not just X — it's Y −5
Let's dive in 🚀 −5
Every flag points at the exact words and says what to change.
The two walls

Building got cheap. Being believed got expensive.

Every unfunded founder hits the same two walls in the same order. Deno is built as two stages, in that order — and the first one costs nothing.

Stage 1 — ValidationFree
SOURCE LEDGER

Paste the idea. Deno collects real posts, analysts argue from what they find, a critic attacks the result, and a judge checks every claim against the post it cites. Claims it can't verify are dropped.

Run the DAG →
Stage 2 — DistributionFree in beta

A 7, 14 or 30-day calendar with irregular cadence, at most one promotional post in ten, and none in communities that ban promotion. Checked against your own writing samples, not a house voice.

See the calendar →
The guardrail0–100
88SAFE
TO
SEND

Twenty structural slop patterns, word-density checks and the rules of the community you're posting in — itemised with what to fix, before your account is on the line.

Open the Studio →

Why founders with no audience start here

You don't need another writing assistant. You need to know the idea holds up, and then not get filtered out of the only channels you can afford.

Seven analysts read the evidence in parallel. Then a critic tries to kill the thesis, and a refiner answers it — at most three rounds, and a failed source never sinks the run. You read the disagreement, not a summary.

Explore validation →
Validation · Graphdeno/workspace
Seven analysts and a critic
Analysts read the collected posts in parallel. A critic attacks the thesis and a refiner answers it, at most three rounds, so it always finishes.
Posts read89
Claims verified21
Max critic rounds3
Deno workspace intake screen showing the idea input and live agent DAG
Ban Risk Studio

Moderators spot a generated post in one line. Check yours first.

Paste any draft — ours or yours. The scrubber runs twenty structural slop patterns, the density check catches stacked AI vocabulary, and the rule check reads the community you're aiming at. You get one number and a fix list.

Score a draft freeHow it decides
90Ban Risk
Score
Example · r/SaaS · self-promotion limitedPasses every gate. Two small fixes suggested.
Itemised deductions
−5Rule-of-three rhythm ×4 · break two of the triads into single clauses
−5Outbound link in body · move to first comment
PASSVoice distance 0.31 · within your fingerprint
🔒 Human-send only
Copy postOpen Reddit ↗
Receipts, not logos

We have no customer logos yet. Here's what we do have.

Putting fake enterprise badges on a pre-launch page is exactly the behaviour Deno scores you down for. So: the real numbers, and a space for the first honest testimonial.

7analyst agents, plus a critic whose only job is to argue against them
20structural slop patterns, each flagged at the exact words
12communities mapped with their rules, karma gates and promo limits
0posts, votes or DMs sent automatically. A human always presses send.
Testimonial slot 01Reserved for the first founder who ships with Deno.The beta is open now.
Built in publicEvery verdict Deno produces is auditable: unit tests across the scoring engines, and a source ledger with retrieval timestamps on every claim.Read how it decides →
Pricing

Free while in beta.

Stage 1$0
5 idea validations a monthBuild / Pivot / Kill, or “not enough evidence”Every claim linked to its source postKept and dropped claims, side by side12 communities with their rules
Start validating
Stage 2Beta
$0during beta
Everything in Stage 11 content plan a month, 7 to 30 daysBan Risk Score on every draft, 200 audits a monthSlop, density, rhythm and community-rule checksStory Bank & voice matchingPaid plans come later; beta users hear first
Join the beta

Frequently asked, honestly answered

That's the entire point of the product. Deno never automates a single action, checks each community's posted rules and promo limits before drafting, and refuses to ship a post that hard-violates one. The Ban Risk Score is the number you check before you send.

Find out tonight. Post on Monday.

Paste your idea. Get the verdict, the sources, and the communities. Free, no card, and no posting on your behalf — ever.

Validate an idea — freeRead a sample verdict