# Capabilities & requirements

Source: https://olef.dev/docs/reference/capabilities

Choose the capability that answers your question, then check its prerequisites. This describes the Olef 3.0.2 CLI surface; Cloud availability also depends on account access and enabled features.

| Capability | What you get | Requirements and limits |
| --- | --- | --- |
| UI automation | Screen tree, selectors, actions, waits, and postconditions | Connected device service; accessibility-visible UI determines what can be read |
| Crash triage and logs | Parsed crashes, app-scoped logs, and diagnostic verdicts | Selected device and app context; unavailable evidence is reported explicitly |
| Java/Kotlin debugging | Breakpoints, stacks, variables, and stepping | Debuggable app; JDWP permits one debugger per process |
| Native and mixed debugging | LLDB-backed native state alongside Java/Kotlin | Compatible NDK/LLDB tools and target ABI; inspect readiness before attaching |
| Compose inspection | Compose nodes, semantics, source mapping, recomposition information | Compatible debuggable app and runtime attachment; source mapping needs project sources |
| Network inspection | HTTP(S) capture, interception, rules, and replay | Traffic must use the proxy; HTTPS needs CA trust; pinning may prevent interception |
| Record to test | Save viewer or agent actions as a Bash test folder | An Olef session and replayable app state; inspect generated assertions and low-confidence selectors |
| Test runner | Repeats, sharding, JUnit, HTML, and failure artifacts | Prepared app/device and Bash for generated scripts; no model or API key needed for replay |
| Local app builds | Apply source changes to the device | Project build setup, JDK, Android SDK, and dependencies |
| Olef Cloud | Managed Android workspace, builds, and emulator | Enabled Cloud access and account limits; no local Android SDK for the managed workflow |
| Play Store publishing | Not yet an end-to-end Olef capability | Release signing and submission remain separate |

## Check the installed version

```bash
olef --version
olef doctor --json
olef commands --json --describe "debug attach"
```

The installed CLI's help and catalog govern its supported flags. The website's [command reference](https://olef.dev/docs/reference/commands) is a versioned snapshot.

## Work alongside other tools

Olef works alongside Android Studio and other editors. Avoid two JDWP debuggers on the same process. Use `olef test -- <command>` when an external instrumentation tool needs the device's single `UiAutomation` slot.

Device actions can change app state. Debugger evaluation can have effects. Review captured logs, screenshots, and recordings before sharing them; [redaction](https://olef.dev/docs/concepts/security-and-redaction) has explicit limits, especially for pixels.