crimeacs

crimeacs / foresyn-hackernews

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Pixel-faithful Hacker News clone with a virality predictor and live calibration ledger. The engine behind hackernews.foresyn.ai.

hackernews.foresyn.ai calibration hacker-news lightgbm m2cgen nextjs
10
1
100% credibility
Found May 15, 2026 at 10 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
JavaScript
AI Summary

A Hacker News interface that lets users predict post virality, generate rewrites, and simulate comments using a model trained on historical HN data.

How It Works

1
πŸ” Discover Foresyn HN

You hear about a tool that predicts how well your Hacker News post might do before you submit it, and visit the live demo.

2
πŸ“ Paste your draft

Type in a title, optional link, and text, then hit submit to see what the crowd might think.

3
⭐ Get your virality score

Instantly see a score out of 99, predicted points, chance of front page, and similar past posts that shaped the prediction.

4
πŸ”„ Try rewrite suggestions

Review title tweaks that could boost your score, pick one to apply, and watch the prediction update live.

5
Preview reactions
✨
Auto-improve

Let the tool keep generating and testing better versions until it plateaus.

πŸ“Š
Dive into details

Explore why the score is what it is, with neighbor stories and feature breakdowns.

πŸš€ Share your scorecard

Copy a shareable summary of your optimized draft and confidently post to real Hacker News.

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Star Growth

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AI-Generated Review

What is foresyn-hackernews?

Foresyn-hackernews is a pixel-faithful Hacker News clone that lets you paste a draft title, URL, and body to predict its virality before posting on real HN. Built in JavaScript with Next.js, it delivers a calibrated score out of 99, raw points estimate with p10/p90 intervals, front-page odds, top similar stories, Gemini-simulated comments, and an auto-rewriter that hill-climbs better titles. Live at hackernews.foresyn.ai, it's the engine behind Foresyn's HN tools.

Why is it gaining traction?

Unlike basic HN scrapers or uncalibrated models, this ships a live calibration ledger on /predictions that re-scores HN's front page every 10 minutes, with honest holdout metrics like Spearman ρ=0.33β€”no inflated claims. The predictor pulls kNN neighbors from 148K stories for evidence-based scores, plus grounded comment sims and real-time title tweaks that actually climb the score. Devs hook on the "predict before you post" loop, with receipts for crossovers to real HN hits.

Who should use this?

Indie hackers and startup founders drafting HN submissions who want to A/B titles without burning karma. ML-curious devs experimenting with virality prediction on public HN data via Supabase/pgvector. Anyone posting Show HN or Ask HN tired of guessing what hits the front page.

Verdict

Grab it if you're shipping to HNβ€”quick local setup with solid docs and shipped models beats forking from scratch, despite 10 stars and 1.0% credibility score signaling early days. Run the ingest/embed/train scripts once; maturity lags on scale but the core predictor loop delivers now.

(198 words)

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