Plan: splash screen (grill transcript + core + stub-tour plans)

[rulkens]

Summary

• Adds the 2026-05-20 splash-screen grill session transcript (13 questions resolved).
• Adds the two-part implementation plan: Plan 1 (core) — splash dialog, useSplash hook, AboutPill, pre-React WebGPU-unsupported gate, App.tsx integration. Plan 2 (stub tour) — runSplashStubTour + cancel-on-input + UI-hide coordination. Plan 2 depends on Plan 1 landing first.
• Docs-only PR, no code changes. Per the new plans-first-PR convention: spec ships standalone for review, implementation PR(s) follow and reference it.

Review checklist

• Skim the grill transcript for any decision you'd revise before implementation starts
• Confirm survey URLs in Q11 (subagent used sdss.org, glade.elte.hu, lambda.gsfc.nasa.gov/product/2mass/ — the 2MASS link isn't 2MRS-specific; swap if you have a preferred URL)
• Sanity-check the stub tour's POI anchor IDs (Plan 2 "Mitigation decision" + Task 2) — cluster-virgo-m87, void-bootes-void, supercluster-coma-sc were inferred from buildStaticAnchorPois' slug rule, not verified against clusterAnchors.ts
• Confirm the void-beat mitigation (reorder vs. captions) — subagent picked reorder; documented at the top of Plan 2
• CSS tokens in Plan 1 Task 8 (--surface-card-soft, --blur-card, --color-fg-muted, --radius-pill, etc.) were inferred from existing references, not enumerated — worth a token grep during execution

Follow-up

After this merges, two implementation PRs follow (one per plan), and a separate future plan retires docs/superpowers/specs/2026-05-07-tour-animation-design.md by specifying the real tour engine.

🤖 Generated with Claude Code

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	skymap	3f9403e	Commit Preview URL Branch Preview URL	May 20 2026, 12:35 AM