Issues

• Rule proposal: an any escaping into a typed position is accepted silently, because the assignability check there is vacuous

  Effect-TS/tsgo#750 · Filter by author jfspencer opened on Sep 14, 2026

• Rule proposal: assertions routed through any, unknown or never are accepted without comparing the two real types

  Effect-TS/tsgo#749 · Filter by author jfspencer opened on Sep 14, 2026

• Rule proposal: T | null return types are Option in disguise

  value:tp-5+
  Effect-TS/tsgo#679 · Filter by author suddenlyGiovanni opened on Aug 26, 2026

• Rule proposal: single-service Effect.updateContext with Context.get/Context.add re-implements Effect.updateService

  value:tp-0
  Effect-TS/tsgo#664 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.useSpan with an unused span parameter loses child-span nesting that Effect.withSpan provides

  value:tp-0
  Effect-TS/tsgo#663 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.partition followed by fail-if-any-errors re-implements Effect.validate

  value:tp-0
  Effect-TS/tsgo#662 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: zero-duration Effect.sleep re-implements Effect.yieldNow through the Clock

  value:tp-0
  Effect-TS/tsgo#661 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: re-failing with e.reason in catchTag/mapError re-implements Effect.unwrapReason

  value:tp-0
  Effect-TS/tsgo#660 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.tap with Metric.update re-implements Effect.trackSuccesses/trackErrors/trackDefects

  value:tp-5+
  Effect-TS/tsgo#658 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.flatMap nesting an independent Effect.map re-implements Effect.zipWith

  value:tp-2-4
  Effect-TS/tsgo#656 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.scoped around a body that immediately retrieves Effect.scope re-implements Effect.scopedWith

  value:tp-2-4
  Effect-TS/tsgo#652 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.flatMap that re-yields its own parameter re-implements Effect.tap

  value:tp-1
  Effect-TS/tsgo#649 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Option.getOrThrow on Effect.serviceOption trades a compile-time requirement for a runtime defect

  value:tp-0
  Effect-TS/tsgo#650 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: catch-all handler returning the same effect hand-rolls a single Effect.retry

  value:tp-0
  Effect-TS/tsgo#647 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.provideContext wrapped directly in a runner re-implements the run*With runners

  value:tp-1
  Effect-TS/tsgo#646 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.flatMap that only provides the acquired value as a service re-implements Effect.provideServiceEffect

  value:tp-2-4
  Effect-TS/tsgo#644 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: discarded Effect.runPromise turns failures into unhandled promise rejections

  value:tp-2-4
  Effect-TS/tsgo#643 · Filter by author mattiamanzati opened on Aug 24, 2026
  1

• Rule proposal: Array.from/fill/makeBy of one repeated effect into Effect.all re-implements Effect.replicateEffect

  value:tp-5+
  Effect-TS/tsgo#641 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.forEach with per-element Effect.result plus a manual success/failure split re-implements Effect.partition

  value:tp-2-4
  Effect-TS/tsgo#639 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: interrupt-only Effect.onExit handler re-implements Effect.onInterrupt

  value:tp-0
  Effect-TS/tsgo#638 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: empty Effect.callback register hand-rolls Effect.never

  value:tp-0
  Effect-TS/tsgo#636 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.match with handlers that only reify the outcome re-implements Effect.result / Effect.option

  value:tp-0
  Effect-TS/tsgo#634 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.match with complementary boolean literals re-implements Effect.isSuccess / Effect.isFailure

  value:tp-2-4
  Effect-TS/tsgo#633 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Effect.exit + flatMap + Exit.match round-trip re-implements Effect.matchCauseEffect

  value:tp-0
  Effect-TS/tsgo#632 · Filter by author mattiamanzati opened on Aug 24, 2026

• Rule proposal: Exit.isFailure ternary inside Effect.onExit re-implements Effect.onError

  value:tp-2-4
  Effect-TS/tsgo#631 · Filter by author mattiamanzati opened on Aug 24, 2026