Summary
Sky-Mutations is a Hypixel SkyBlock (Minecraft) web tool for planning mutation fusion requirements and optimizing Garden greenhouse layouts. The purpose was to simplify a complex game mechanic into a digestable and usable format for players. It replaced exisiting spreadsheets with a fast, interative UI that stays accurate as pricing and game data changed.
Achievements
- As of January 15th 2025, the site has had 59,000 visitors with over 300,000 page views and a bounce rate of 44%.
- Featured In Youtube Videos
What the site does
- Mutation explorer: pick a mutation and see the full ingredient chain required to craft it (including nested requirements).
- Costing (optional): estimate coin cost using live market pricing, with toggles for buy vs sell style pricing.
- Greenhouse planner: plan greenhouse placements under real constraints (unlocked slots, crop size, planting patterns, multi-plot support).
Algorithms & logic (high level)
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Decomposition tree (fusion requirements)
- Mutations form a directed graph: each mutation depends on other items (which may themselves be mutations).
- The site builds a decomposition tree rooted at the selected mutation by expanding requirements downward.
- Quantities propagate by multiplication: if you need (k) of an ingredient per craft, and you’re crafting (n) total, the child node quantity becomes (k \times n).
- To keep the tree fast, the system can use stored “patterns”*(precomputed decomposition structure) when available, falling back to on-the-fly expansion if needed.
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Greenhouse placement / layout planning
- The greenhouse is modeled as a grid (10×10) with a mask of unlocked vs locked cells.
- Each plant/mutation occupies a footprint (1×1, 2×2, 3×3) and may require a planting pattern (offset rules / ingredient arrangement).
- The planner searches for placements that fit the footprint entirely within unlocked cells and avoids collisions with already-placed items.
- Manual mode lets users place items directly and then runs validation to catch missing prerequisites or impossible placements.
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Pricing + totals
- When pricing is enabled, the site fetches live market data and then rolls costs up the tree (each node’s cost contributes to the parent).
- Totals are computed after the tree is built so the UI can progressively render structure even if pricing is still loading.
Caching & performance
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Server-side price caching
- Bazaar prices are cached in-memory for a short window to avoid hammering external APIs and to keep page loads snappy.
- Coflnet-based mutation price snapshots are cached longer (and can be persisted as a snapshot) to reduce repeated fetch cost.
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Precomputed mutation patterns
- Common decomposition structures can be stored with each mutation so trees can be built quickly without re-walking the entire dependency graph every request.
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Client-side state caching (UX)
- Greenhouse unlocked slots, plot count, selected mutations, and drafts are persisted client-side so users don’t lose work between refreshes.
- Saved layouts can be exported/imported as compact share codes for sharing or restoring across devices.
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UI data fetching
- The app uses API calls and query caching to avoid redundant requests while navigating between pages.
Integrations (API)
- Hypixel API (Bazaar + profile data)
- PlayerDB (username → UUID)
- COFL (Bazaar Pricing)
Screenshots

