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Add cost-of-failure page and landing teaser - #15
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A new /cost-of-failure/ page prices what a single point of failure costs a stake at Stage 0 vs Stage 1, and when the Stage 1 fee premium pays for itself. - lib/cost: pure, tested model pinned to the Fulu spec. Exit and deposit churn, withdrawability delay, sweep, pending-deposit queue with competing demand, initial and correlation slashing penalties (incl. deep-queue validators escaping the 8,192-epoch window), flag penalties, inactivity leak, opt-in EIP-7716, Stage 1 reshare and consolidation paths, and a seeded Monte Carlo with heatmap. - data/network: mainnet head-state snapshot (2026-10-19) and 90 days of validatorqueue history. - Page: hero answer, lucky/partial/full outcomes, event timeline, odds (fan chart, chance/average heatmap, break-even rate), collapsible assumptions with URL state and CSV export, and methodology with spec links. Section and chart anchors. - Landing: teaser with a to-scale waffle, plus header/footer links.
- OG card for /cost-of-failure (public/og/cost-of-failure.png), drawn from the page's default model run: headline loss and to-scale waffles. - Callout that wrong-fork lockouts (Holesky, Feb 2025) make these figures an understatement, with numbered, linked references. - Methodology links to the page; sitemap and llms.txt list it. - a11y: AA text contrast (page-scoped link colour), underlined prose links, focusable named table regions, valid definition list, fixed spec anchors. axe reports no violations on the page.
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
CodeQL flagged the simulation worker's message handler for having no origin check. Check the origin and the message shape, and re-clamp the parameters in the worker. URL parameters were also unbounded, so a crafted link could ask for a billion runs and freeze the page. decodeParams now clamps every number to its control's range and resets unknown enums.
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A new /cost-of-failure/ page prices what a single point of failure costs
a stake at Stage 0 vs Stage 1, and when the Stage 1 fee premium pays for
itself.
churn, withdrawability delay, sweep, pending-deposit queue with
competing demand, initial and correlation slashing penalties (incl.
deep-queue validators escaping the 8,192-epoch window), flag
penalties, inactivity leak, opt-in EIP-7716, Stage 1 reshare and
consolidation paths, and a seeded Monte Carlo with heatmap.
validatorqueue history.
(fan chart, chance/average heatmap, break-even rate), collapsible
assumptions with URL state and CSV export, and methodology with spec
links. Section and chart anchors.