Sharpen the existing daily-game share loop into something measurable (per Codex's
"instrument what you have, then feed people into it" plan), ahead of a Show HN launch.
Analytics:
- Per-game funnel events <game>_{arrival,started,completed,shared} (article_id=0).
arrival = landed via a shared link (utm_source=game_share); started = first move
(guess/find/flip); completed = solved/cleared/Full Bloom; shared = on share success.
- trackVisit() moved into the global layout so direct /play landings count; the
server-rendered /a/ share page now creates a visitor token + sends a daily visit
beacon (first-time /a/-only visitors were previously dropped).
- Admin "Games funnel" panel: arrivals / engaged / completed / shared, per game.
Sharing:
- Memory Match gains a Share button (it was the only game without one).
- All shares deep-link to the exact game+variant with a full https:// URL +
utm_source=game_share (gameShareUrl helper), instead of a bare /play.
- "shared" is counted only after navigator.share()/clipboard.writeText() succeeds.
/play social metadata:
- /play served homepage canonical/OG (static SPA, ssr=false). postbuild script
patches build/play.html's head to /play canonical/title/description/OG; fails the
build if the homepage tags drift. Caddy try_files now serves {path}.html so /play
is served from the patched file (snapshot in deploy/caddy/).
Tests: backend 352, frontend 27.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- events table (kind, article_id, visitor_hash, day) with a UNIQUE key that dedups
to one row per visitor-day — caps volume and makes counts mean distinct
visitor-days. NO ip/ua/referrer/url. Groupings derived from article_id at query
time, never stored.
- POST /api/events (public): whitelisted kinds (visit/open/share_ub/copy_source/
native_share/source_click); visitor token hashed server-side (never raw).
- Frontend analytics.js: random localStorage visitor token; track() via sendBeacon;
visit once/day; open on article click; share_ub/copy_source/native_share from the
share menu; /a landing pages fire source_click. 127 tests pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>