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Motely (MotelyJAML)

Motely is a vectorized (SIMD) seed-search engine for Balatro. Filters are authored in JAML (Jimbo's Ante Markup Language).

Build

dotnet build Motely.slnx

Test

dotnet test Motely.Tests/Motely.Tests.csproj
dotnet test Motely.Tests/Motely.Tests.csproj --filter "FullyQualifiedName~SomeTestName"

Toolchain

• .NET 10 SDK, pinned to 10.0.204 in global.json (rollForward: latestFeature).

Layout

The solution is Motely.slnx. Projects:

• Motely/ — the core engine (vectorized SIMD seed search).
• Motely.CLI/ — command-line head.
• Motely.TUI/ — terminal UI head.
• Motely.Wasm/ — WebAssembly head (Bootsharp interop).
• Motely.DataLake/ — data/results tooling.
• Motely.Tests/ — the test project.

Other top-level items: JamlFilters/ (pre-made .jaml filter configs), jaml-lang/ (the JAML language), Seeds/, and docs/ (balatro-mechanics.md).

JAML

Filters are written in JAML — a YAML-based config describing what to look for in a seed. See JamlFilters/ for ready-made filters to copy and adapt, jaml-lang/ for the language itself, and docs/balatro-mechanics.md for the game mechanics filters target.

JAML language tooling (LSP, grammar, editor support)

JAML is a real language with real tooling, all generated from the engine:

• jaml-lang/ — the language service (diagnostics, completions, hover, document symbols). Its vocab and key tables (src/generated.ts) are generated by jaml-lang/generate.mjs from Motely/Enums and the JAML clause model — the C# engine is the only source of truth. Generation runs automatically on every Motely.Wasm build; run it by hand with node jaml-lang/generate.mjs.
• jaml-lsp/ — the LSP server (stdio) and VS Code extension. The TextMate grammar (jaml-lsp/syntaxes/jaml.tmLanguage.json) is generated alongside the vocab — never edit it by hand.

node jaml-lang/generate.mjs          # regenerate vocab + grammar from the engine
cd jaml-lang;  npm install; npm run build   # build the language service
cd ../jaml-lsp; npm install; npm run build  # build the LSP server + extension
npm run smoke                        # drive the server over real LSP JSON-RPC

A typo'd joker name, an unknown clause key, or a bad deck value squiggles in your editor with the same judgement the engine itself would pass — because the tables came from the engine.

Finding a Balatro Seed

See FIND_BALATRO_SEED_WITH_MOTELY_CLI.md for the full guide — JAML authoring, CLI flags, gotchas, worked examples.

Quick start:

dotnet run --project Motely.CLI -- --jaml yourfilter --keyword YOURNAME --cutoff 0

The filter lives in JamlFilters/yourfilter.jaml. Run from the repo root so --jaml resolves correctly.

Working with agents

CLAUDE.md covers how AI agents should work in this repo (consent, running policy, the Bootsharp docs). This README is the human-facing source of truth for what Motely is and how to build it.