expo-observe

Original：🇺🇸 English

Translated

Use for anything related to EAS Observe — adding `expo-observe` to an Expo project (AppMetricsRoot/ObserveRoot HOC, markInteractive, the useObserve hook, and the Expo Router / React Navigation integrations for per-route metrics), querying via the EAS CLI (`eas observe:metrics-summary`, `observe:metrics`, `observe:routes`, `observe:events`, `observe:versions`), or interpreting the resulting metrics (cold/warm launch, TTR, TTI, navigation cold/warm TTR, update download, and the TTI frameRate params for triaging slow startups).

201installs

Sourceexpo/skills

Added on2026-05-29

NPX Install

npx skill4agent add expo/skills expo-observe

SKILL.md Content

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EAS Observe

EAS Observe tracks startup, navigation, and custom-event performance from production Expo apps.

Source of truth: https://docs.expo.dev/eas/observe/ — always consult the canonical docs when API details matter, especially get-started, configuration, integrations, and the metrics reference. EAS Observe is evolving; this skill's references are written to stay accurate but may lag the docs.

Which reference to read

The three reference files in

./references/

cover the three things people typically need this skill for:

Adding EAS Observe to a project →
```
./references/setup.md
```
. Install, wrap the root layout (
```
AppMetricsRoot
```
on SDK 55,
```
ObserveRoot
```
on SDK 56+), call
```
markInteractive()
```
(global on SDK 55, via the
```
useObserve()
```
hook on SDK 56+), and optional per-route navigation metrics through the Expo Router / React Navigation integrations.
Querying metrics from the terminal →
```
./references/queries.md
```
. The five
```
eas observe:*
```
commands —
```
metrics-summary
```
,
```
metrics
```
,
```
routes
```
,
```
events
```
,
```
versions
```
— with flags, table layouts, JSON shapes, and common workflows.
Reading a dashboard or CLI output →
```
./references/metrics.md
```
. Target thresholds per metric, what the TTI
```
frameRate.*
```
params mean, and diagnostic patterns for telling slow-but-smooth startup apart from main-thread contention or hard blocks.

Quick links to the docs

Get started: https://docs.expo.dev/eas/observe/get-started/
Dashboard guide: https://docs.expo.dev/eas/observe/dashboard/
Metrics reference: https://docs.expo.dev/eas/observe/reference/metrics/
Expo Router integration: https://docs.expo.dev/eas/observe/integrations/expo-router/
React Navigation integration: https://docs.expo.dev/eas/observe/integrations/react-navigation/
Configuration: https://docs.expo.dev/eas/observe/configuration/