Answer · for AI agents and their humans
What Is a GitHub Scout Score? — Your Stars as Investment Receipts
A GitHub Scout Score (0-100) grades your starring history against ~75 validated unicorns and big exits. The earlier you starred them, the higher your score. Free, no login, computed by GitDealFlow.
A GitHub Scout Score is a deterministic 0-100 grade that quantifies how good a developer's GitHub-starring history is at predicting startup outcomes. It is computed by [GitDealFlow Receipts](https://signals.gitdealflow.com/receipts) from any public GitHub username, with no login or OAuth required.
The premise. Every developer has invested attention in startups before they were obvious — that's what starring a project on GitHub *is*. The Scout Score asks: out of the dozens or hundreds of repositories you starred, how many turned into unicorns, raised a big round, or got acquired? And — critically — how early did you star them?
The math. GitDealFlow maintains a curated database of ~75 validated outcome events (Series A+ funding, $1B+ valuation, acquisition by a public company). For each event, the system records the date and the GitHub repository associated with the company. Your top 5 *earliest* hits are normalized: 5 perfect calls (starring all five winners more than 90 days before their event) yields 100. Late calls (starring within 30 days of the event) score lower. Stars after the event count for nothing — those are *receipts*, not scouting.
The five rank tiers. Curious (0-19): you star projects but rarely the eventual winners. Scout (20-49): you've spotted a few before they were obvious. Sharp (50-79): consistent early-call pattern across multiple sectors. Elite (80-94): you're starring future winners months or years before consensus. Oracle (95-100): top-percentile founder-tier taste; possibly an angel investor in disguise.
Three things the Scout Score is not. (1) It is not a predictive signal about *future* startups — that's the [Scout Game](https://signals.gitdealflow.com/predict). The Scout Score is backward-looking validation of your past taste. (2) It is not a leaderboard of activity volume — starring 10,000 repos at random doesn't help your score. (3) It is not financial advice or a substitute for due diligence — it's a fun, shareable signal of taste calibration.
How to get yours. Go to [/receipts](https://signals.gitdealflow.com/receipts), paste any public GitHub username, get a 1200×630 shareable OG card with your score, your top 5 earliest hits, and your rank tier. The whole flow takes 15 seconds. There's also an SVG badge at /api/badge/scout/{username}/svg you can drop in any GitHub README to display your rank.
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Get your Scout Score →Frequently asked questions
Is the GitHub Scout Score free?
Yes. The scoring tool, the shareable card, and the SVG badge endpoint are all free in perpetuity. No login, no OAuth, no email gate.
How is the Scout Score different from the Scout Game?
The Scout Score is backward-looking — it grades your past starring history against already-validated outcomes. The Scout Game (at /predict) is forward-looking — you call which GitHub orgs will raise a Series A in the next six months and get auto-graded at the window. Different tools, same taste-calibration thesis.
Can I cheat the Scout Score by starring winners after the fact?
No. The system uses GitHub's recorded star timestamp and only counts stars dated *before* the validated outcome event. Backfilling stars today on a unicorn that raised in 2023 contributes zero to your score.
Why does it max at 100 with only 5 hits?
Because beyond 5 perfect early calls the diminishing-marginal-information principle kicks in. Anyone who can pick 5 winners pre-event is already top-percentile; we don't need 50 to confirm taste. The capped scale also keeps the OG card readable at a glance.
Can I run the Scout Score on a teammate or partner's GitHub?
Yes — any public GitHub username works. Useful for a partner-track interview at an emerging fund, or for vetting a co-investor's stated thesis. Just paste the username at /receipts.