--- name: expo-observe description: "Set up and query EAS Observe for Expo apps, including root integration, interactive markers, route metrics, CLI summaries, traces, logs, and performance diagnosis." risk: critical source: https://github.com/expo/skills/tree/main/plugins/expo/skills/expo-observe source_repo: expo/skills source_type: official date_added: 2026-07-01 license: MIT license_source: https://github.com/expo/skills/blob/main/LICENSE --- # EAS Observe ## When to Use Use this skill when you need 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`,... 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`](./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`](./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`](./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/ ## Limitations - Enabling telemetry sends device/session/custom-event data to the configured backend. Inspect route URLs/params and event properties for tokens, identifiers and personal data before collection; minimize/redact payloads and obtain required product authorization. Verify project/account and data destination. SDK names and CLI output are version-specific. A successful build or empty query is not proof that instrumentation works; verify an actual controlled event and its environment. - Use this skill only when the task clearly matches its upstream product or API scope. - Verify commands, API behavior, pricing, quotas, credentials, and deployment effects against current official documentation before making changes. - Do not treat generated examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions. --- Source attribution: expo/skills contributors, via Agentic Awesome Skills Original project: https://github.com/expo/skills License: MIT + CC-BY-4.0 License information: https://creativecommons.org/licenses/by/4.0/ Original upstream instructions; downloaded from Mega AI Hub. ## Upstream license notice The MIT License (MIT) Copyright (c) 2025-present 650 Industries, Inc. (aka Expo) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # Mega AI Hub resource metadata Creator / publisher: expo/skills contributors, via Agentic Awesome Skills Original project: https://github.com/expo/skills Attribution basis: Recorded upstream repository Fields of work: Development & Engineering Roles: Mobile Developer Specialties: Specialty not specified Tools: Tool not specified Country applicability: Country not specified Classification basis: Dave AI task classification from package title, description, and declared metadata Instruction SHA-256: ab470cf51a6ea00b9bd3831dae3c785fb4e26bed7e3ad3ffc100ee7be736989a Metadata reviewed: 2026-10-27 This metadata supersedes earlier Mega AI Hub catalog attribution. Original instruction and supporting files are preserved.