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Adds PROJECT.md for two-part initiative: verified law tests (functor/monad/error/capability) and test utilities (assertions, TestRuntime, capability test doubles). Creates PROJECT.md with requirements and constraints.
6-phase milestone: law infrastructure, functor/monad laws, error/capability laws, fluent assertions, TestRuntime, and capability test doubles. Initializes STATE.md and phase directories.
Single plan: EffectLawSupport utility with observational effect equivalence assertions, plus LawInfrastructureTest smoke tests.
One plan: FunctorLawsTest (identity, composition) and MonadLawsTest (left identity, right identity, associativity), each tested with success, failure, and suspend effect inputs.
…, and associativity
One plan: ErrorChannelLawsTest (catchAll identity, mapError identity, mapError composition, attempt round-trip) and CapabilityHandlerLawsTest (orElse identity, compose associativity). 14 tests total.
…nd compose associativity
One plan: EffectAssert fluent chain + EffectAssertions entry point with eager execution, 8 assertion methods (succeeds/fails/with/predicate/andReturn/andError), handler overload, and 22-test validation suite.
…nterfaces not allowed)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…t factories Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Phase 10 plan: horizontal and vertical Layer composition operators. Covers widenError helper, and() (same input, merged output), andProvide() (sequential build, both outputs retained), and LayerCompositionTest. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Phase 11: finalize on() intersection bound (C extends F & Capability<R>), commit user's forType() changes, and write end-to-end LayerIntegrationTest. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Note: Java JLS §4.4 forbids additional bounds when the first bound is a type variable (F), so the exact intersection `C extends F & Capability<R>` does not compile. The existing `C extends F` already transitively enforces the Capability bound since Builder<F extends Capability<?>>. The forType() factory and Builder<F> generics from the user's changes are retained as-is. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Documents the full Milestone 2 API: phantom types (Empty/With), HandlerEnv, EffectWithEnv, Layer (succeed/fromEffect), horizontal and vertical layer composition, API reference tables, and design notes. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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