About

Imported from krutikjain/android-agent-skills (skills/android-rxjava-to-coroutines-migration/SKILL.md). Install upstream with npx skills add krutikjain/android-agent-skills --skill android-rxjava-to-coroutines-migration. Copyright stays with the author.

Android RxJava To Coroutines Migration

Name: android-rxjava-to-coroutines-migration
Author: krutikjain

When To Use

Use this skill when the request is about: rxjava to coroutines android, observable to flow android, replace composite disposable android.
Primary outcome: Migrate Android RxJava code to Kotlin coroutines and Flow with safe lifecycle-aware replacements.
Reach for this skill when the codebase still exposes Single, Observable, schedulers, or disposables and the goal is to move to suspend, Flow, StateFlow, or SharedFlow.
Read references/patterns.md for the type-mapping matrix and operator red-flag checklist.
Read references/scenarios.md for staged migration and inventory-first workflows.
Handoff skills when the scope expands:
android-modernization-upgrade
android-coroutines-flow

Workflow

Scan the codebase for RxJava imports, base types, subjects, and scheduler usage before changing any API surface.
Classify each usage as one-shot work, stream work, hot state, hot events, callback bridging, or backpressure-sensitive work.
Replace repository and domain APIs first, then move UI-layer subscriptions to lifecycle-aware collection.
Rewrite scheduler and disposable management as dispatcher, scope, structured-concurrency ownership, and lifecycle-aware collection such as repeatOnLifecycle.
Leave a checklist for ambiguous operators or custom bridges instead of pretending every chain can be auto-converted safely.

Guardrails

Prefer suspend functions for one-shot work and Flow for streams; do not force everything into Flow.
Preserve lifecycle ownership when replacing CompositeDisposable and manual subscription chains.
Call out operator semantics that need human review, especially flatMap, switchMap, replay, and threading assumptions.
Preserve hot-state and replay semantics explicitly with StateFlow, SharedFlow, shareIn, or stateIn instead of assuming cold Flow is equivalent.
Treat migration as behavior-preserving refactor work, not a chance to redesign unrelated business logic.

Anti-Patterns

Converting every Rx type to Flow even when a suspend function is the better match.
Dropping replay, buffering, or hot-stream semantics during subject migration.
Leaving observeOn and subscribeOn assumptions undocumented after moving to dispatchers.
Rewriting repository, ViewModel, and UI layers all at once with no staged verification.

Review Focus

Type mapping: Single, Maybe, Completable, Observable, Flowable, and Subjects.
Hot vs cold semantics, replay behavior, and backpressure expectations.
Dispatcher ownership, viewModelScope, and lifecycle collection.
Testing fallout for coroutine timing, cancellation, and stream assertions.

Examples

Happy path

Scenario: Scan a legacy RxJava sample and generate a migration checklist for repositories, ViewModels, and UI subscriptions.
Command: bash skills/android-rxjava-to-coroutines-migration/scripts/run_examples.sh

Edge case

Scenario: Inventory subjects, disposables, and scheduler usage before converting state or one-off events.
Command: python3 skills/android-rxjava-to-coroutines-migration/scripts/scan_rxjava_usage.py examples/fixtures/rxjava-legacy-sample --json

Failure recovery

Scenario: Produce a deterministic checklist when parts of the chain still need manual operator review.
Command: python3 skills/android-rxjava-to-coroutines-migration/scripts/generate_migration_checklist.py examples/fixtures/rxjava-legacy-sample

Done Checklist

RxJava types and operators were inventoried before code changes were proposed.
One-shot APIs, streams, hot state, and hot events are mapped to the right coroutine primitives.
Lifecycle ownership and dispatcher assumptions are explicit.
Ambiguous operators or bridging cases are recorded as manual follow-up work.

Official References

Use it

Copy one of these into your project. Installing also returns the manifest and these snippets.

yaml

targets:
  - https://api.opensmartroute.ai/api/v1/registry/krutikjain-android-agent-skills-android-rxjava-to-corout-4f2daa/manifest   # or paste the manifest below

Manifest

An Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.

krutikjain-android-agent-skills-android-rxjava-to-corout-4f2daa.ocm.jsonjson

{
  "ocm": "1",
  "id": "krutikjain-android-agent-skills-android-rxjava-to-corout-4f2daa",
  "kind": "skill",
  "name": "android-rxjava-to-coroutines-migration",
  "description": "Migrate Android RxJava code to Kotlin coroutines and Flow with safe lifecycle-aware replacements.",
  "publisher": "krutikjain",
  "version": "1.0.0",
  "capabilities": {
    "domains": [
      "coding"
    ],
    "tags": [
      "skill-md",
      "android",
      "rxjava",
      "coroutines",
      "flow",
      "migration",
      "skills-sh"
    ],
    "languages": [
      "en"
    ]
  },
  "quality_prior": 0.6,
  "examples": [
    "Migrate Android RxJava code to Kotlin coroutines and Flow with safe lifecycle-aware replacements."
  ],
  "primary": false,
  "metadata": {
    "source": {
      "provider": "skills.sh",
      "repository": "https://github.com/krutikjain/android-agent-skills",
      "path": "skills/android-rxjava-to-coroutines-migration/SKILL.md",
      "ref": "HEAD",
      "url": "https://github.com/krutikjain/android-agent-skills/blob/HEAD/skills/android-rxjava-to-coroutines-migration/SKILL.md",
      "key": "krutikjain/android-agent-skills/skills/android-rxjava-to-coroutines-migration/SKILL.md"
    }
  },
  "instructions": "# Android RxJava To Coroutines Migration\n\n## When To Use\n- Use this skill when the request is about: rxjava to coroutines android, observable to flow android, replace composite disposable android.\n- Primary outcome: Migrate Android RxJava code to Kotlin coroutines and Flow with safe lifecycle-aware replacements.\n- Reach for this skill when the codebase still exposes `Single`, `Observable`, schedulers, or disposables and the goal is to move to `suspend`, `Flow`, `StateFlow`, or `SharedFlow`.\n- Read `references/patterns.md` for the type-mapping matrix and operator red-flag checklist.\n- Read `ref",
  "cost": {
    "context_tokens": 1147
  }
}

Fetch it by URL: GET /api/v1/registry/krutikjain-android-agent-skills-android-rxjava-to-corout-4f2daa/manifest?version=1.0.0

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