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+# Guidance for AI coding agents
+
+File purpose: operational rules for automated or assisted code changes. Human-facing conceptual docs belong in `README.md` or the docs site.
+
+## Repository purpose
+
+Stream Chat SDKs for:
+
+- React Native CLI
+- Expo
+
+Goals: API stability, backward compatibility, predictable releases, strong test coverage, accessibility, and performance discipline.
+
+## Tech & toolchain
+
+- Languages: TypeScript, React (web + native)
+- Runtime: Node (use `nvm use` with `.nvmrc`)
+- Package manager: Yarn (V1)
+- Testing: Jest (unit)
+- Lint/Format: ESLint + Prettier
+- Build: Package-local build scripts (composed via root)
+- Release: Conventional Commits -> automated versioning/publishing
+- Platforms:
+    - React Native: iOS and Android
+
+## Environment setup
+
+1. `nvm use`
+2. `yarn install`
+3. (Optional) Verify: `node -v` matches `.nvmrc`
+4. `cd package`
+5. `yarn install-all && cd ..`
+6. Run tests: `yarn test:unit`
+
+## Project layout (high-level)
+
+- `package/`
+    - `native-package/` (`react-native` CLI specific bundle)
+    - `expo-package/` (`Expo` specific bundle)
+    - `.` (core UI SDK, shared between both bundles)
+- `examples/`
+    - `ExpoMessaging/`
+    - `SampleApp/`
+    - `TypeScriptMessaging/`
+- Config roots: linting, tsconfig, playwright, babel
+- Do not edit generated output (`lib/`, build artifacts)
+
+## Core commands (Runbook)
+
+| Action                  | Command                      |
+|-------------------------|------------------------------|
+| Install deps            | `yarn install`               |
+| Full build              | `yarn install-all`           |
+| Watch (if available)    | `yarn start` (add if absent) |
+| Lint                    | `yarn lint`                  |
+| Fix lint (if separate)  | `yarn lint --fix`            |
+| Unit tests (CI profile) | `yarn test:unit`             |
+
+## API design principles
+
+- Semantic versioning
+- Use `@deprecated` JSDoc with replacement guidance
+- Provide migration docs for breaking changes
+- Avoid breaking changes; prefer additive evolution
+- Public surfaces: explicit TypeScript types/interfaces
+- Consistent naming: `camelCase` for functions/properties, `PascalCase` for components/types
+
+### Deprecation lifecycle
+
+1. Mark with `@deprecated` + rationale + alternative.
+2. Maintain for at least one minor release unless security-critical.
+3. Add to migration documentation.
+4. Remove only in next major.
+
+## Performance guidelines
+
+- Minimize re-renders (memoization, stable refs)
+- Use `React.memo` / `useCallback` / `useMemo` when profiling justifies
+- Clean up side effects (`AbortController` for network calls, unsubscribe listeners when unmounting)
+- Monitor bundle size; justify increases > 2% per package
+- Prefer lazy loading for optional heavy modules
+- Avoid unnecessary large dependency additions
+
+## Error & logging policy
+
+- Public API: throw descriptive errors or return typed error results (consistent with existing patterns)
+- No console noise in production builds
+- Internal debug logging gated behind env flag (if present)
+- Never leak credentials/user data in errors
+
+## Concurrency & async
+
+- Cancel stale async operations (media, network) when components unmount
+- Use `AbortController` for fetch-like APIs
+- Avoid race conditions: check instance IDs / timestamps before state updates
+
+## Testing strategy
+
+- Unit: pure functions, small components
+- React Native: target minimal smoke + platform logic (avoid flakiness)
+- Mocks/fakes: prefer shared test helpers
+- Coverage target: maintain or improve existing percentage (fail PR if global coverage drops)
+- File naming: `*.test.ts` / `*.spec.ts(x)`
+- Add tests for: new public API, bug fixes (regression test), performance-sensitive utilities
+
+## CI expectations
+
+- Mandatory: build, lint, type check, unit/integration tests, (optionally) E2E smoke
+- Node versions: those listed in matrix (see workflow YAML files under `.github/workflows/`)
+- Failing or flaky tests: fix or quarantine with justification PR comment (temporary)
+- Zero new warnings
+
+## Release workflow (high-level)
+
+1. Conventional Commit messages on PR merge
+2. Release automation aggregates commits
+3. Version bump + changelog + tag
+4. Publish to registry
+5. Deprecations noted in CHANGELOG
+6. Ensure docs updated prior to publishing breaking changes
+
+## Dependency policy
+
+- Avoid adding large deps without justification (size, maintenance)
+- Prefer existing utility packages
+- Run `yarn audit` (or equivalent) if adding security-impacting deps
+- Keep upgrades separate from feature changes when possible
+
+## Samples & docs
+
+- New public feature: update at least one sample app
+- Breaking changes: provide migration snippet
+- Keep code snippets compilable
+- Use placeholder keys (`YOUR_STREAM_KEY`)
+
+## React Native specifics
+
+- Clear Metro cache if module resolution has issues: `yarn react-native start --reset-cache` (for RN CLI) or `yarn expo start --dev-client -c` (for `Expo`)
+- Test on iOS + Android for native module or platform-specific UI changes
+- Avoid unguarded web-only APIs in shared code
+- If the apps in `/examples` are failing to build or install, run:
+  - `watchman watch-del-all && rm -rf ~/Library/Developer/Xcode/DerivedData/*`
+  - `(cd ios && bundle exec pod install)` (for RN CLI based sample apps)
+  - `npx expo prebuild` (if changes have been done in `app.json` of `ExpoMessaging`)
+  - `rm -rf ios && rm -rf android` (if new native modules have been installed in `ExpoMessaging`)
+
+## Linting & formatting
+
+- Run `yarn lint` before commit
+- Narrowly scope `eslint-disable` with inline comments and rationale
+- No broad rule disabling
+
+## Commit / PR conventions
+
+- Small, focused PRs
+- Include tests for changes
+- Screenshot or video for UI changes (before/after)
+- Label breaking changes clearly in description
+- Document public API changes
+
+## Security
+
+- No credentials or real user data
+- Use placeholders in examples
+- Scripts must error on missing critical env vars
+- Avoid introducing unmaintained dependencies
+
+## Prohibited edits
+
+- Do not edit build artifacts
+  - `package/lib`
+  - `ios` and `android` directories in `ExpoMessaging`
+  - `ios/build` and `android/build` in the other sample apps
+  - `node_modules` everywhere
+- Do not bypass lint/type errors with force merges
+
+## Quick agent checklist (per commit)
+
+- Build succeeds
+- Lint clean
+- Type check clean
+- Tests (unit/integration) green
+- Coverage not reduced
+- Public API docs updated if changed
+- Samples updated if feature surfaced
+- No new warnings
+- No generated files modified
+
+---
+
+Refine this file iteratively for agent clarity; keep human-facing explanations in docs site / `README.md`.
diff --git a/package/package.json b/package/package.json
index 5076d1b189..99ba8839f6 100644
--- a/package/package.json
+++ b/package/package.json
@@ -22,6 +22,7 @@
     "README.md"
   ],
   "scripts": {
+    "install-all": "(yarn install --force && (cd native-package && yarn install --force) && (cd expo-package && yarn install --force))",
     "build": "rimraf lib && yarn run --silent build-translations && bob build && yarn run --silent copy-translations",
     "build-translations": "i18next",
     "copy-translations": "echo '\u001b[34mℹ\u001b[0m Copying translation files to \u001b[34mlib/typescript/i18n\u001b[0m' && cp -R -f ./src/i18n ./lib/typescript/i18n && echo '\u001b[32m✓\u001b[0m Done Copying Translations'",