Function startRun

packages/opencode/src/effect/runner.ts:83–91

(work: Effect.Effect<A, E>, done: Deferred.Deferred<A, E | Cancelled>)

    ).pipe(Effect.flatten)

  const startRun = (work: Effect.Effect<A, E>, done: Deferred.Deferred<A, E | Cancelled>) =>
    Effect.gen(function* () {
      const id = next()
      const fiber = yield* work.pipe(
        Effect.onExit((exit) => finishRun(id, done, exit)),
        Effect.forkIn(scope),
      )
      return { id, done, fiber } satisfies RunHandle<A, E>
    })

  const finishShell = (id: number) =>
    SynchronizedRef.modifyEffect(