VibeSchem v0.5.0

• Build on your own world. Claude can read an area of your Minecraft Java world and build on
  its real terrain instead of a flat, empty schematic:
  • worlds finds your worlds (official launcher, Prism, MultiMC, CurseForge, Modrinth) with
    their version and where you stand; import_site reads the area around a point (radius up to
    128) into a new project, or uses a schematic (.schem, .schematic, .litematic, .nbt) as
    the starting point;
  • every save format from 1.8 to 26.x, including LZ4-compressed regions and the new 26.1
    dimensions/ folder layout. The world is only read;
  • a terrain report for Claude: height map, water, trees, flattest spots and existing builds.
• Terrain-aware operations: flatten levels a plot and blends it into the slopes around it,
  foundation fills down to the ground (solid or pillars), path follows the ground; ground: true
  stands trees, components and blocks on it, and scripts get ground(), surface() and water().
• Back into the game, in place:
  • a copy of your world with the build in it, next to the original (needs 1.14+);
  • a vanilla data pack: /function vibeschem:<name>/build places it with /fill and
    /setblock over a few ticks, …/undo puts back exactly what was there, …/tp takes you
    there. It can be installed straight into the world;
  • schematics hold only the changed area and keep its world position (WorldEdit //paste -o); the
    structure .nbt holds only the changed blocks; the material list counts only what you place.
• Data packs for every build (1.13+), without WorldEdit: /function …/build builds it where you
  stand, …/undo removes it.
• Viewer: an Import sheet (pick a world, the centre and the radius, or drop a schematic file
  anywhere on the viewer), a Site panel with the number of changed blocks, and C to show only
  what the build changes. The export sheet installs data packs and creates world copies.
• NBT strings are written in Java's modified UTF-8, so text with emoji survives a round trip
  through the game.
• Fallback colours no longer paint waterlogged blocks (leaves, stairs) as water.

0.4.0

• Redstone simulator. A new engine (packages/redstone) runs Minecraft Java redstone the way
  the game's code does, with the mechanics of the build's version (1.8 → newest):
  • game ticks, neighbour updates (W, E, down, up, N, S) and shape updates;
  • scheduled-tick priorities and block events;
  • pistons and sticky pistons with slime, honey, the 12-block limit and dropped blocks on short
    pulses;
  • quasi-connectivity, observers, comparators (compare/subtract, containers, through a block) and
    torch burnout;
  • doors, rails, note blocks, copper bulbs and more.
    Dust update order depends on world position, like in the game.
• Circuits with tests. A BuildSpec can have a circuit with named inputs and outputs (single
  blocks or buses) and tests: truth tables with forAll, delays with expect … within, clock
  periods with measure, memory with for. The tests run on every build and show in the summary.
  The rest state is saved into the build, so exports paste working.
• simulate tool: run stored or ad-hoc tests, add probes, check that results don't depend on
  where the build sits (locations), and play a test live in the viewer (show).
• Live simulation in the viewer:
  • a hand tool (U) for levers, buttons and repeaters;
  • run, pause, one tick, speed from ¼× to max;
  • a Redstone panel with inputs, outputs, tests and events, and labels on the blocks;
  • redstone dust coloured by its power, like in the game.
• New guide read_guide("redstone"): tick timing, which way blocks face, power rules, the test
  language, verified building blocks (AND, latch, clock, pulse, piston door, a generated chaser) and
  how to scale up. Every example in it is tested.
• Dust connects like placing it by hand (a lone dust is a "+" from 1.16), and repeaters get their
  locked state.
• The viewer tab is reused. Edits no longer open a new browser tab: the server waits for the tab
  that's already open to reconnect (after a new session too), and only opens one when there is none.
  A hidden tab shows a dot in its title when a change arrives.