paritytech · pgherveou · Aug 9, 2026 · Jul 17, 2026 · Jul 20, 2026 · Jul 21, 2026
diff --git a/.gitignore b/.gitignore
@@ -10,6 +10,7 @@ lerna-debug.log*
 # Build artifacts
 node_modules
 target
+/artifacts/
 
 # SwiftPM (root Package.swift for ios/truapi-host)
 /.build/

diff --git a/CLAUDE.md b/CLAUDE.md
@@ -45,6 +45,11 @@ scripts/battery.sh         run the generated battery against both headless CLI h
   rather than importing a concrete protocol version. Runtime crates may use
   `truapi::versioned::*` for wire envelopes, but should unwrap them into latest
   payloads immediately.
+- Native bindings expose canonical Rust domain and protocol types directly.
+  Add feature-gated UniFFI derives to those types and custom conversions for
+  unsupported leaf values instead of defining parallel `Native*` mirrors.
+  Boundary-specific native types are reserved for lifecycle or callback
+  behavior that has no canonical value-type equivalent.
 - `truapi-server` WASM artifacts live under
   `js/packages/truapi-host/dist/wasm/web/` and are gitignored.
   Build them locally with `make wasm` (rerun whenever

diff --git a/Makefile b/Makefile
@@ -3,7 +3,7 @@
 # Run `make help` for the list of targets.
 
 .DEFAULT_GOAL := help
-.PHONY: help setup build codegen test check clean playground wasm wasm-crypto-test uniffi uniffi-kotlin android-jni android-publish-local dotli-link dev dev-bootstrap dev-link-check e2e-dotli e2e-signing-cli e2e-pairing-cli headless install matrix explorer xcframework
+.PHONY: help setup build codegen test check clean playground wasm wasm-crypto-test uniffi uniffi-kotlin ios-build ios-run ios-chat-run ios-chat-host-playground-run ios-chat-all android-jni android-publish-local dotli-link dev dev-bootstrap dev-link-check e2e-dotli e2e-signing-cli e2e-pairing-cli headless install matrix explorer xcframework
 
 CARGO ?= cargo
 TRUAPI_PKG := js/packages/truapi
@@ -41,6 +41,7 @@ setup: ## First-time setup: submodules, JS dependencies, generated artifacts.
 	# that only exist after codegen.sh, which also builds the packages.
 	npm ci --ignore-scripts
 	./scripts/codegen.sh
+	$(MAKE) uniffi
 	cd $(PLAYGROUND) && yarn install --frozen-lockfile
 	cd $(DOTLI) && bun install --frozen-lockfile
 	$(MAKE) dotli-link
@@ -96,6 +97,86 @@ uniffi: ## Generate Swift bindings from the truapi-server cdylib into target/uni
 		--language swift \
 		--out-dir $(UNIFFI_SWIFT_TMP)
 
+IOS_HOST ?= ../polkadot-app-ios-v2
+IOS_DERIVED_DATA ?= $(IOS_HOST)/build/DerivedData
+IOS_CONFIGURATION ?= Debug
+IOS_SWIFT_FLAGS ?= -DNIGHTLY -DW3S -DIOS_PASEO_E2E
+IOS_SIMULATOR_DEVICE ?=
+IOS_XCODE_DESTINATION ?= generic/platform=iOS Simulator
+IOS_BUNDLE ?= io.pcf.polkadotapp.develop
+IOS_GOOGLE_SERVICE_PLIST ?= $(IOS_HOST)/polkadot-app/GoogleService/GoogleService-Info-Release.plist
+IOS_PRODUCT_HOST ?= truapi-playground.dot
+IOS_PRODUCT_URL ?= http://localhost:3100
+IOS_CHAT_PRODUCT_DIR ?= playground
+IOS_CHAT_PRODUCT_HOST ?= truapi-playground.dot
+IOS_CHAT_PRODUCT_NAME ?= TrUAPI Playground
+IOS_CHAT_PRODUCT_URL ?= http://127.0.0.1:3100
+IOS_HOST_PLAYGROUND_DIR ?= ../host-playground
+IOS_HOST_PLAYGROUND_HOST ?= host-playground.dot
+IOS_HOST_PLAYGROUND_NAME ?= Host Playground
+IOS_HOST_PLAYGROUND_URL ?= http://127.0.0.1:3101
+IOS_APP := $(abspath $(IOS_DERIVED_DATA)/Build/Products/$(IOS_CONFIGURATION)-iphonesimulator/polkadot-app.app)
+
+ios-build: ## Rebuild the local Rust package and the TestFlight-configured iOS simulator app.
+	@test -d "$(IOS_HOST)/.git" || { \
+		echo "Missing iOS checkout at $(IOS_HOST); set IOS_HOST to polkadot-app-ios-v2"; \
+		exit 1; \
+	}
+	./ios/truapi-host/scripts/rebuild.sh
+	cd $(IOS_HOST) && \
+		TRUAPI_LOCAL_PATH="$(CURDIR)" \
+		TRUAPI_USE_LOCAL_BINARY=1 \
+		RUN_IN_CI=true xcodebuild \
+		-project polkadot-app.xcodeproj \
+		-scheme polkadot-app \
+		-configuration $(IOS_CONFIGURATION) \
+		-destination '$(IOS_XCODE_DESTINATION)' \
+		-derivedDataPath $(abspath $(IOS_DERIVED_DATA)) \
+		ARCHS=arm64 \
+		ONLY_ACTIVE_ARCH=YES \
+		BASE_SWIFT_FLAGS='$(IOS_SWIFT_FLAGS)' \
+		clean build
+	cp "$(IOS_GOOGLE_SERVICE_PLIST)" "$(IOS_APP)/GoogleService-Info.plist"
+	codesign --force --sign - --preserve-metadata=entitlements "$(IOS_APP)"
+
+ios-run: ios-build ## Build and launch the local TrUAPI playground in an iPhone simulator.
+	TRUAPI_IOS_E2E_DEVICE="$(IOS_SIMULATOR_DEVICE)" \
+	TRUAPI_IOS_E2E_APP="$(IOS_APP)" \
+	TRUAPI_IOS_E2E_BUNDLE="$(IOS_BUNDLE)" \
+	TRUAPI_IOS_E2E_PRODUCT_HOST="$(IOS_PRODUCT_HOST)" \
+	TRUAPI_IOS_E2E_PRODUCT_URL="$(IOS_PRODUCT_URL)" \
+	node scripts/launch-ios-playground.mjs
+
+ios-chat-run: ios-build ## Run the TrUAPI Playground Chat diagnosis in an iPhone simulator.
+	TRUAPI_IOS_E2E_DEVICE="$(IOS_SIMULATOR_DEVICE)" \
+	TRUAPI_IOS_E2E_APP="$(IOS_APP)" \
+	TRUAPI_IOS_E2E_BUNDLE="$(IOS_BUNDLE)" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_DIR="$(IOS_CHAT_PRODUCT_DIR)" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_HOST="$(IOS_CHAT_PRODUCT_HOST)" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_NAME="$(IOS_CHAT_PRODUCT_NAME)" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_URL="$(IOS_CHAT_PRODUCT_URL)" \
+	node scripts/launch-ios-chat-playground.mjs
+
+ios-chat-host-playground-run: ios-build ## Verify Host Playground Chat through the workspace-linked TrUAPI client.
+	TRUAPI_IOS_E2E_DEVICE="$(IOS_SIMULATOR_DEVICE)" \
+	TRUAPI_IOS_E2E_APP="$(IOS_APP)" \
+	TRUAPI_IOS_E2E_BUNDLE="$(IOS_BUNDLE)" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_DIR="$(abspath $(IOS_HOST_PLAYGROUND_DIR))" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_HOST="$(IOS_HOST_PLAYGROUND_HOST)" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_NAME="$(IOS_HOST_PLAYGROUND_NAME)" \
+	TRUAPI_IOS_E2E_CHAT_PRODUCT_URL="$(IOS_HOST_PLAYGROUND_URL)" \
+	TRUAPI_IOS_E2E_CHAT_ROOM_ID="host-playground-room" \
+	TRUAPI_IOS_E2E_CHAT_MESSAGE="!flip" \
+	TRUAPI_IOS_E2E_CHAT_EXPECTED_REPLY="Flipping the coin!" \
+	TRUAPI_IOS_E2E_CHAT_DIAGNOSIS="0" \
+	TRUAPI_IOS_E2E_CHAT_EXPECTED_STARTUP_MESSAGE="" \
+	TRUAPI_IOS_E2E_CHAT_EXPECT_CUSTOM_RENDERER="1" \
+	TRUAPI_IOS_E2E_CHAT_SCREENSHOT="artifacts/host-playground-coin-flip-chat.png" \
+	TRUAPI_IOS_E2E_CHAT_TRUAPI_DIR="$(abspath js/packages/truapi)" \
+	node scripts/launch-ios-chat-playground.mjs
+
+ios-chat-all: ios-chat-run ios-chat-host-playground-run ## Run both local iOS Chat playground integrations.
+
 UNIFFI_KOTLIN_OUT := android/truapi-host/src/main/kotlin/generated
 
 uniffi-kotlin: ## Regenerate Kotlin UniFFI bindings from the truapi-server cdylib.

diff --git a/Package.swift b/Package.swift
@@ -7,15 +7,16 @@
 // ios/truapi-host/scripts/rebuild.sh); the xcframework is gitignored and
 // distributed as a GitHub release asset (ios/truapi-host/scripts/publish.sh).
 
+import Foundation
 import PackageDescription
 
-// Flip to true to build against the locally generated
-// ios/truapi-host/Binaries/truapi_server.xcframework (run rebuild.sh first);
-// false consumes the published release asset below (updated by publish.sh).
-let useLocalBinary = false
+// Set TRUAPI_USE_LOCAL_BINARY=1 to build against the locally generated
+// ios/truapi-host/Binaries/truapi_server.xcframework (run rebuild.sh first).
+// The published release asset remains the default for remote consumers.
+let useLocalBinary = ProcessInfo.processInfo.environment["TRUAPI_USE_LOCAL_BINARY"] == "1"
 
-let publishedBinaryURL = "https://github.com/paritytech/truapi/releases/download/%40parity%2Fios-host%400.4.0/truapi_server.xcframework.zip"
-let publishedBinaryChecksum = "a3029c071ef37e876ae51e45c177eab09cb976f9dbd729b93a2191d6ca8331be"
+let publishedBinaryURL = "https://github.com/paritytech/truapi/releases/download/%40parity%2Fios-host%400.4.0-chat-modality-shared-core.4/truapi_server.xcframework.zip"
+let publishedBinaryChecksum = "b4d7e633e8a86bdaf104a1bcafc883549fc893514451fe7caeb951107e5038f7"
 
 let binaryTarget: Target = useLocalBinary
     ? .binaryTarget(

diff --git a/README.md b/README.md
@@ -81,6 +81,8 @@ manifest at the repo root (`Package.swift`) so apps can consume it as a git-URL
 dependency. Its `scripts/rebuild.sh` regenerates the committed bindings and
 container bundle (`make xcframework` + `make uniffi`); see
 [`ios/truapi-host/README.md`](ios/truapi-host/README.md).
+Native bindings expose the canonical Rust domain and protocol value types;
+native-only adapter types are limited to lifecycle and callback behavior.
 
 ### JS Host SDKs
 
@@ -127,10 +129,9 @@ controls, and examples.
 
 `scripts/battery.sh` drives that CLI from source over every code-generated
 example and writes both committed compatibility reports:
-`explorer/diagnosis-reports/signing-host-cli.md` from a direct signing-host run,
-and `pairing-host-cli.md` from a pairing host that the script pairs with a
-signing host it starts itself under the same product id. Known unsupported
-service families remain visible in the reports without making the command fail.
+`explorer/diagnosis-reports/spa/signing-host-cli.md` from a direct signing-host
+run, and `spa/pairing-host-cli.md` from a pairing host that the script pairs with a
+signing host it starts itself.
 
 ```bash
 scripts/battery.sh                  # both phases
@@ -149,6 +150,63 @@ yarn dev
 
 Open `https://dot.li/localhost:3000` inside the Polkadot Desktop Host. See [`playground/README.md`](playground/README.md) for deployment.
 
+To build the iOS host and open the playground in Simulator:
+
+```bash
+make ios-run
+```
+
+The target regenerates the UniFFI Swift bindings, builds the matching Rust
+simulator library, and builds the sibling `polkadot-app-ios-v2` checkout with the Nightly feature
+flags and release Firebase app used by the Nightly TestFlight build. Native
+Chat and the Paseo chain catalog come from the same Nightly Remote Config as
+TestFlight. The executable keeps the development bundle and app-group identity
+so Simulator can reuse its already registered wallet; keychain data cannot be
+transferred to the production bundle. The simulator also adds the
+`IOS_PASEO_E2E` conveniences needed to start on the real `browse.dot` Browse tab
+and activate the embedded signing host. Embedded product host sessions use the
+same Paseo People and Bulletin chains selected by the Nightly app
+configuration. The launcher starts the playground at `http://localhost:3100`
+when needed and uses that local source only after Browse opens
+`truapi-playground.dot`. It refuses to launch if the local URL belongs to a
+different app. Override the product, URL, or simulator with `IOS_PRODUCT_HOST`,
+`IOS_PRODUCT_URL`, or `TRUAPI_IOS_E2E_DEVICE`. The simulator launch reuses the
+wallet and registered username already stored by the iOS app. Opening a product
+activates the embedded `truapi-host` signing-host session from that wallet; it
+does not provision or pair a signer-bot user.
+
+To exercise the shared-core Chat path with the first-party TrUAPI Playground
+worker, build and serve the local product, install its worker into the
+simulator app's product storage, and open its native Chat application:
+
+```bash
+make ios-chat-run
+```
+
+The launcher verifies the Chat connection and runs a correlated Chat-only
+diagnosis. The worker proves create-room idempotency, observes the new room on
+the live list subscription, posts text and custom messages, receives
+`!diagnose` through `chat_action_subscribe`, and serves live renderer trees.
+The launcher also verifies that a renderer update reaches native code and that
+the final Markdown report reaches CoreData. It writes the host-labelled report
+to `playground/test-results/ios-chat/diagnosis-report.md`. The product builds
+against the workspace-linked `@parity/truapi`. Override the product source,
+identity, SPA URL, room, input, or report path with
+`IOS_CHAT_PRODUCT_DIR`, `IOS_CHAT_PRODUCT_HOST`, `IOS_CHAT_PRODUCT_URL`,
+`TRUAPI_IOS_E2E_CHAT_ROOM_ID`, `TRUAPI_IOS_E2E_CHAT_MESSAGE`, or
+`TRUAPI_IOS_E2E_CHAT_REPORT`.
+
+The same harness can run the legacy Product SDK worker from the sibling
+`host-playground` checkout. This target builds the current TrUAPI client, links
+it over Host Playground's transitive `@parity/truapi`, then builds and runs
+that product:
+
+```bash
+make ios-chat-host-playground-run
+```
+
+Run both integrations with one iOS build using `make ios-chat-all`.
+
 ## Regenerate the TypeScript client
 
 When the Rust trait surface changes:

diff --git a/android/truapi-host/README.md b/android/truapi-host/README.md
@@ -208,7 +208,6 @@ val endpoint = core.startWsBridge()
 
 // Call these from host/platform observers so native subscriptions see updates
 // after their immediate current item.
-core.notifySessionStoreChanged()
 core.notifyThemeChanged(ThemeVariant.DARK)
 core.notifyPreimageChanged(preimageKey, preimageBytesOrNull)
 core.notifyChainResponse(chainConnectionId, jsonRpcResponse)

diff --git a/android/truapi-host/build.gradle.kts b/android/truapi-host/build.gradle.kts
@@ -56,8 +56,8 @@ android {
 dependencies {
     // UniFFI Kotlin bindings use JNA for FFI.
     api("net.java.dev.jna:jna:5.14.0@aar")
-    // UniFFI 0.32 uses coroutines to bridge async Rust functions and callbacks.
-    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.8.1")
+    // UniFFI async functions and callbacks use cancellable continuations and jobs.
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.9.0")
 }
 
 // Coordinates for the local Maven publication (`publishToMavenLocal`).

diff --git a/android/truapi-host/src/main/kotlin/io/parity/truapi/TrUAPIHost.kt b/android/truapi-host/src/main/kotlin/io/parity/truapi/TrUAPIHost.kt
@@ -39,6 +39,7 @@ import uniffi.truapi_server.HostCallbacks
 import uniffi.truapi_server.HostNavigateRejection
 import uniffi.truapi_server.HostRejection
 import uniffi.truapi_server.HostStorageException
+import uniffi.truapi_platform.ProductExecutionKind as UniFfiProductExecutionKind
 import uniffi.truapi_server.NativeRuntimeConfigException
 import uniffi.truapi_server.NativeTrUApiCore
 import uniffi.truapi_server.WsBridgeEndpoint
@@ -63,6 +64,18 @@ enum class PairingDeeplinkScheme {
         }
 }
 
+/** Trusted kind of executable attached to a product connection. */
+enum class ProductExecutionKind {
+    SPA,
+    CHAT;
+
+    internal fun toNative(): UniFfiProductExecutionKind =
+        when (this) {
+            SPA -> UniFfiProductExecutionKind.SPA
+            CHAT -> UniFfiProductExecutionKind.CHAT
+        }
+}
+
 /**
  * Static product and pairing config supplied before the Rust core handles
  * product calls. One core instance represents one product identity.
@@ -75,6 +88,7 @@ enum class PairingDeeplinkScheme {
  */
 data class RuntimeConfig(
     val productId: String,
+    val executionKind: ProductExecutionKind = ProductExecutionKind.SPA,
     val hostName: String,
     val hostIcon: String? = null,
     val hostVersion: String? = null,
@@ -89,6 +103,7 @@ data class RuntimeConfig(
     internal fun toNative(): UniFfiNativeRuntimeConfig =
         UniFfiNativeRuntimeConfig(
             productId = productId,
+            executionKind = executionKind.toNative(),
             hostName = hostName,
             hostIcon = hostIcon,
             hostVersion = hostVersion,
@@ -105,6 +120,7 @@ data class RuntimeConfig(
         if (this === other) return true
         if (other !is RuntimeConfig) return false
         return productId == other.productId &&
+            executionKind == other.executionKind &&
             hostName == other.hostName &&
             hostIcon == other.hostIcon &&
             hostVersion == other.hostVersion &&
@@ -122,6 +138,7 @@ data class RuntimeConfig(
 
     override fun hashCode(): Int {
         var result = productId.hashCode()
+        result = 31 * result + executionKind.hashCode()
         result = 31 * result + hostName.hashCode()
         result = 31 * result + (hostIcon?.hashCode() ?: 0)
         result = 31 * result + (hostVersion?.hashCode() ?: 0)

diff --git a/explorer/README.md b/explorer/README.md
@@ -4,15 +4,15 @@ Docs-only browser for the TrUAPI service surface. All trait and type data is sou
 
 ## Host compatibility matrix
 
-The **Compatibility** page (`/v/<version>/compatibility`) renders a host × method matrix aggregated from the playground's per-host Diagnosis reports. The committed per-host reports under [`diagnosis-reports/`](diagnosis-reports/) are the source of truth; [`src/data/compatibility.ts`](src/data/compatibility.ts) is a generated artifact (git-ignored) that [`scripts/aggregate-diagnosis-matrix.mjs`](scripts/aggregate-diagnosis-matrix.mjs) rebuilds from those reports at `dev` / `build` / `lint` time (via the `predev` / `prebuild` / `prelint` scripts). It is the **only** runtime-derived data in the explorer; everything else flows from Rust via codegen.
+The **Compatibility** page (`/v/<version>/compatibility`) renders separate SPA and Chat host × method matrices aggregated from the playground's per-host Diagnosis reports. The committed per-host reports under [`diagnosis-reports/`](diagnosis-reports/) are the source of truth; [`src/data/compatibility.ts`](src/data/compatibility.ts) is a generated artifact (git-ignored) that [`scripts/aggregate-diagnosis-matrix.mjs`](scripts/aggregate-diagnosis-matrix.mjs) rebuilds from those reports at `dev` / `build` / `lint` time (via the `predev` / `prebuild` / `prelint` scripts). It is the **only** runtime-derived data in the explorer; everything else flows from Rust via codegen.
 
 ### Updating the matrix
 
 Because the matrix is regenerated from `diagnosis-reports/` on every `dev` / `build` / `lint`, you only ever commit reports, never `src/data/compatibility.ts`.
 
-**From the playground (recommended).** Open the playground in the host you want to (re)measure, run the Diagnosis, and click **Submit report ↗**. That files a pre-filled `diagnosis-report` issue; the [`diagnosis-report`](../.github/workflows/diagnosis-report.yml) workflow writes the report to `diagnosis-reports/<host>.md` and opens (or updates) that host's PR.
+**From the playground (recommended).** Open the playground in the host you want to (re)measure, run the Diagnosis, and click **Submit report ↗**. That files a pre-filled `diagnosis-report` issue; the [`diagnosis-report`](../.github/workflows/diagnosis-report.yml) workflow writes the report to `diagnosis-reports/spa/<host>.md` (or `diagnosis-reports/chat/<host>.md` for Chat reports) and opens (or updates) that host's PR.
 
-**By hand.** Click **Copy report** instead (see [`../playground/README.md#diagnosis`](../playground/README.md#diagnosis)), save the markdown to a host-named file (e.g. `web.md`, `desktop.md`, `android.md`, `ios.md`), drop it into [`diagnosis-reports/`](diagnosis-reports/) overwriting that host's previous report, and commit. Run `npm run generate-matrix` from `explorer/` to preview locally (or just `npm run dev`, which regenerates first). The Compatibility page and each method's Host support row pick up the new data on the next build / Vite HMR.
+**By hand.** Click **Copy report** instead (see [`../playground/README.md#diagnosis`](../playground/README.md#diagnosis)), save the markdown to a host-named file under [`diagnosis-reports/spa/`](diagnosis-reports/spa/) (e.g. `spa/web.md`, `spa/desktop.md`, `spa/android.md`, `spa/ios.md`), overwriting that host's previous report, and commit. Chat worker reports live under [`diagnosis-reports/chat/`](diagnosis-reports/chat/), such as `chat/ios.md`, and are rendered in the separate Chat section. Run `npm run generate-matrix` from `explorer/` to preview locally (or just `npm run dev`, which regenerates first). The Compatibility page and each method's Host support row pick up the new data on the next build / Vite HMR.
 
 ### Data shape
 

diff --git a/explorer/diagnosis-reports/chat/ios.md b/explorer/diagnosis-reports/chat/ios.md
@@ -0,0 +1,11 @@
+## Truapi iOS Chat Diagnosis
+
+**5 success · 0 failed**
+
+| Method | Status | Details |
+| --- | --- | --- |
+| `Chat/create_room` | ✅ | created once, then returned Exists |
+| `Chat/list_subscribe` | ✅ | observed the newly created room |
+| `Chat/post_message` | ✅ | posted text and custom messages |
+| `Chat/action_subscribe` | ✅ | received MessagePosted with the originating room |
+| `Chat/custom_message_render` | ✅ | served initial and replacement trees on a host-initiated render stream |
diff --git a/explorer/diagnosis-reports/android.md → explorer/diagnosis-reports/spa/android.md b/explorer/diagnosis-reports/android.md → explorer/diagnosis-reports/spa/android.md
@@ -22,12 +22,6 @@
 | `Chain/get_spec_properties` | ✅ |  |
 | `Chain/broadcast_transaction` | ✅ |  |
 | `Chain/stop_transaction` | ✅ |  |
-| `Chat/create_room` | ❌ | timed out after 10s |
-| `Chat/register_bot` | ❌ | registerBot failed: { "error": { "tag": "Unknown", "value": { "reason": "Not implemented" } } } |
-| `Chat/list_subscribe` | ❌ | timed out after 10s |
-| `Chat/post_message` | ❌ | postMessage failed: { "error": { "tag": "Unknown", "value": { "reason": "Error: Unknown method: chatSendTextMessage" } } } |
-| `Chat/action_subscribe` | ❌ | timed out after 10s |
-| `Chat/custom_message_render_subscribe` | ❌ | timed out after 10s |
 | `Entropy/derive` | ✅ |  |
 | `Local Storage/read` | ✅ |  |
 | `Local Storage/write` | ✅ |  |