TypeScript rules

Rule	Catches	Enable via
Strict compiler flags	15 flags: strict, noUncheckedIndexedAccess, exactOptionalPropertyTypes, and more	tsconfig/strict.json
Effect diagnostics	31 diagnostics set to error	tsconfig/effect.json

TypeScript presets

From packages/rules/docs/tsconfig.md.

Import paths:

• @house-rules/rules/tsconfig/strict.json: compiler flags only.
• @house-rules/rules/tsconfig/effect.json: extends strict.json and adds the @effect/language-service plugin block.

Both come from drunk-cat-stack’s tsconfig.base.json. Merged, they equal it exactly. A test checks that against the copy in tests/fixtures/presets/.

tsconfig.base.json

{
  "extends": "@house-rules/rules/tsconfig/effect.json"
}

Each workspace keeps its own tsconfig.json with include and anything project-specific, such as "jsx": "preserve", and extends the base file as before.

strict.json

target and lib ES2023, module and moduleResolution NodeNext, moduleDetection: "force", strict, noUncheckedIndexedAccess, exactOptionalPropertyTypes, noImplicitOverride, isolatedModules, verbatimModuleSyntax, erasableSyntaxOnly, forceConsistentCasingInFileNames, skipLibCheck, noEmit. NodeNext needs "type": "module" in the consumer’s package.json, or .mts files.

effect.json

Adds one plugins entry for @effect/language-service, with namespaceImportPackages: ["effect"] and every diagnostic severity as drunk-cat-stack sets it: most at error, and importFromBarrel, strictEffectProvide, lazyEffect and strictBooleanExpressions off. The diagnostics only run in a compiler patched by @effect/tsgo (effect-tsgo patch). A plain tsc ignores the block.

plugins is an array, so a consumer that sets its own compilerOptions.plugins replaces the whole Effect block rather than adding to it.

Resolution

TypeScript resolves the extends specifier through this package’s exports map. That was checked with TypeScript 7.0.2: an export whose name differs from the file path still resolves, so it is the exports field doing the work, not a file-path fallback.

Tested against

Tool	Version
typescript	7.0.2 (this repository installs it as the typescript-7 alias, so the ESLint parser keeps its TypeScript 6 peer)
@effect/tsgo	0.45.0 (proven in a drunk-cat-stack copy: a floating Effect fails with TS377001 ... effect(floatingEffect))

All rules