diff --git a/README.md b/README.md
index 9d21ad4..fd303a3 100644
--- a/README.md
+++ b/README.md
@@ -1736,7 +1736,7 @@ Companion runtime helper:
 - `src/companion/heartbeatLoop.ts` provides `CompanionHeartbeatLoop` for periodic heartbeat scheduling (`publishHeartbeat`) with start/stop safety, optional interval jitter (`jitterRatio`) to spread load (with safe normalization for invalid random samples), `tickNow()` for manual sends, success/error hooks, loop observability (`successCount`, `lastSuccessAt`, `failureCount`, `lastFailure`, `getState()`), and optional auto-stop after repeated failures.
 - `src/companion/bootstrapManifest.ts` provides `createCompanionBootstrapManifest()` for generating a typed gateway/node/runtime bootstrap contract used by packaging flows, including optional initial status/location/push payloads.
 - `src/companion/releaseBundle.ts` provides `writeCompanionReleaseBundle()` for writing a distributable companion bundle directory (bootstrap JSON + launcher script + README + SHA-256 checksums + release manifest).
-- `src/companion/shellTemplate.ts` provides `writeCompanionShellTemplate()` for emitting platform starter shells (macOS/iOS/Android native scaffold snippets + bootstrap JSON).
+- `src/companion/shellTemplate.ts` provides `writeCompanionShellTemplate()` for emitting platform starter shells (macOS launcher wrapper snippet, iOS/Android bootstrap + runtime skeleton files, and bootstrap JSON).
 - `src/companion/releaseVerify.ts` provides `verifyCompanionReleaseBundle()` for validating bundle checksums and optional signature metadata.
 - `src/companion/releasePipeline.ts` provides `buildAndVerifyCompanionReleaseBundle()` for build-and-verify automation (including signed bundle flows).
 - `src/companion/macosMenuBarApp.ts` provides `generateMacOSMenuBarApp()` for emitting a runnable Swift Package macOS menu-bar companion scaffold.
@@ -1749,7 +1749,7 @@ Minimal companion CLI:
 - `flynn companion --export-bootstrap ./companion.bootstrap.json` writes a resolved bootstrap manifest for desktop/mobile companion app packaging (use `-` for stdout).
 - `flynn companion --export-release-bundle ./dist/companion-macos` writes a release bundle directory (`companion.bootstrap.json`, `run-companion.sh`, `README.md`, `CHECKSUMS.sha256`, `RELEASE_MANIFEST.json`) and exits.
 - `flynn companion --export-release-bundle ./dist/companion-macos --signing-key ./keys/release-private.pem --signing-key-id team-k1` also writes `CHECKSUMS.sha256.sig` for signed verification workflows.
-- `flynn companion --platform ios --export-shell-template ./dist/companion-ios-template` writes a platform-native starter template directory (`companion.bootstrap.json`, native starter file, `README.md`) and exits.
+- `flynn companion --platform ios --export-shell-template ./dist/companion-ios-template` writes a platform-native starter template directory (`companion.bootstrap.json`, bootstrap/runtime starter files, `README.md`) and exits.
 - `flynn companion --verify-release-bundle ./dist/companion-macos --verify-signing-key ./keys/release-public.pem --verify-signing-key-id team-k1 --require-signature` verifies checksums and signature metadata before install.
 - `pnpm companion:bundle -- --output ./dist/companion-macos --platform macos --signing-key ./keys/release-private.pem --signing-key-id team-k1` builds and verifies a release bundle in one step.
 - `pnpm companion:reference-apps -- --output ./apps/companion` regenerates macOS/iOS/Android reference app starter shells plus `apps/companion/macos-app` runnable scaffold.
diff --git a/apps/companion/README.md b/apps/companion/README.md
index 28f760a..422cbd3 100644
--- a/apps/companion/README.md
+++ b/apps/companion/README.md
@@ -8,3 +8,5 @@ This directory contains generated companion starter shells for:
 - Android shell
 
 These are reference starters, not production binaries. Use them as a baseline for app packaging and distribution workflows.
+
+iOS/Android starter directories include bootstrap plus runtime-skeleton files for register/status/location/push/handoff flows.
diff --git a/apps/companion/android/AndroidCompanionRuntime.kt b/apps/companion/android/AndroidCompanionRuntime.kt
new file mode 100644
index 0000000..8e8540a
--- /dev/null
+++ b/apps/companion/android/AndroidCompanionRuntime.kt
@@ -0,0 +1,122 @@
+package flynn.companion
+
+import java.util.concurrent.Executors
+import java.util.concurrent.ScheduledFuture
+import java.util.concurrent.TimeUnit
+import org.json.JSONArray
+import org.json.JSONObject
+
+interface CompanionTransport {
+  fun connect(url: String, token: String?)
+  fun disconnect()
+  fun send(rawMessage: String)
+}
+
+data class CompanionStatusPayload(
+  val platform: String,
+  val appVersion: String? = null,
+  val statusText: String? = null,
+  val batteryPct: Double? = null
+)
+
+data class CompanionLocationPayload(
+  val latitude: Double,
+  val longitude: Double,
+  val source: String = "device"
+)
+
+class AndroidCompanionRuntime(
+  private val bootstrap: CompanionBootstrap,
+  private val transport: CompanionTransport
+) {
+  private var nextRequestId: Int = 1
+  private val scheduler = Executors.newSingleThreadScheduledExecutor()
+  private var heartbeatFuture: ScheduledFuture<*>? = null
+
+  fun connect() {
+    transport.connect(bootstrap.gateway.url, bootstrap.gateway.token)
+  }
+
+  fun disconnect() {
+    heartbeatFuture?.cancel(true)
+    heartbeatFuture = null
+    transport.disconnect()
+  }
+
+  fun registerNode() {
+    val params = JSONObject()
+      .put("nodeId", bootstrap.node.nodeId)
+      .put("role", bootstrap.node.role)
+      .put("platform", bootstrap.node.platform)
+      .put("capabilities", JSONArray(bootstrap.node.capabilities))
+    sendRpc("node.register", params)
+  }
+
+  fun publishStatus(status: CompanionStatusPayload) {
+    val statusJson = JSONObject()
+      .put("platform", status.platform)
+    status.appVersion?.let { statusJson.put("appVersion", it) }
+    status.statusText?.let { statusJson.put("statusText", it) }
+    status.batteryPct?.let { statusJson.put("batteryPct", it) }
+    sendRpc(
+      "node.status.set",
+      JSONObject()
+        .put("nodeId", bootstrap.node.nodeId)
+        .put("status", statusJson)
+    )
+  }
+
+  fun publishLocation(location: CompanionLocationPayload) {
+    sendRpc(
+      "node.location.set",
+      JSONObject()
+        .put("nodeId", bootstrap.node.nodeId)
+        .put(
+          "location",
+          JSONObject()
+            .put("latitude", location.latitude)
+            .put("longitude", location.longitude)
+            .put("source", location.source)
+        )
+    )
+  }
+
+  fun registerPushToken(token: String, topic: String? = null) {
+    val params = JSONObject()
+      .put("nodeId", bootstrap.node.nodeId)
+      .put("provider", "fcm")
+      .put("token", token)
+    topic?.let { params.put("topic", it) }
+    sendRpc("node.push_token.set", params)
+  }
+
+  fun sendHandoff(message: String, sessionId: String? = null) {
+    val params = JSONObject()
+      .put("message", message)
+      .put("awaitResponse", true)
+    sessionId?.let { params.put("sessionId", it) }
+    sendRpc("agent.send", params)
+  }
+
+  fun startHeartbeatLoop(statusFactory: () -> CompanionStatusPayload) {
+    heartbeatFuture?.cancel(true)
+    val intervalSeconds = bootstrap.runtime.heartbeatSeconds.coerceAtLeast(1).toLong()
+    heartbeatFuture = scheduler.scheduleAtFixedRate(
+      { publishStatus(statusFactory()) },
+      0L,
+      intervalSeconds,
+      TimeUnit.SECONDS
+    )
+  }
+
+  private fun sendRpc(method: String, params: JSONObject) {
+    val request = JSONObject()
+      .put("jsonrpc", "2.0")
+      .put("id", nextRequestId++)
+      .put("method", method)
+      .put("params", params)
+    transport.send(request.toString())
+  }
+}
+
+// Generated for node: android-reference-shell (android)
diff --git a/apps/companion/android/README.md b/apps/companion/android/README.md
index 355fb27..fa9cc97 100644
--- a/apps/companion/android/README.md
+++ b/apps/companion/android/README.md
@@ -1,11 +1,12 @@
-# Flynn Companion android Shell Template
+# Flynn Companion Android Shell Template
 
-This directory contains a generated starter template for a android companion shell.
+This directory contains a generated starter template for an Android companion shell.
 
 Files:
 - `companion.bootstrap.json`: resolved Flynn companion bootstrap contract
-- `CompanionBootstrap.kt`: platform-native starter model/wrapper snippet
+- `CompanionBootstrap.kt`
+- `AndroidCompanionRuntime.kt`
 
 Notes:
 - These templates are intentionally minimal and should be integrated into your app project.
-- Runtime transport should use Flynn gateway JSON-RPC node methods (`node.register`, `node.status.set`, `node.location.set`, `node.push_token.set`).
+- Runtime transport should use Flynn gateway JSON-RPC node methods (`node.register`, `node.status.set`, `node.location.set`, `node.push_token.set`, `agent.send`).
diff --git a/apps/companion/android/companion.bootstrap.json b/apps/companion/android/companion.bootstrap.json
index 0d5e59d..60a9a28 100644
--- a/apps/companion/android/companion.bootstrap.json
+++ b/apps/companion/android/companion.bootstrap.json
@@ -1,6 +1,6 @@
 {
   "schemaVersion": 1,
-  "generatedAt": "2026-02-27T04:50:38.373Z",
+  "generatedAt": "2026-02-27T04:56:19.684Z",
   "gateway": {
     "url": "ws://127.0.0.1:18800"
   },
diff --git a/apps/companion/ios/IOSCompanionRuntime.swift b/apps/companion/ios/IOSCompanionRuntime.swift
new file mode 100644
index 0000000..d310196
--- /dev/null
+++ b/apps/companion/ios/IOSCompanionRuntime.swift
@@ -0,0 +1,165 @@
+import Foundation
+
+enum CompanionRuntimeError: Error {
+  case invalidGatewayURL
+  case notConnected
+  case encodingFailure
+}
+
+private struct JsonRpcRequest<Params: Encodable>: Encodable {
+  let jsonrpc = "2.0"
+  let id: Int
+  let method: String
+  let params: Params
+}
+
+struct CompanionStatusPayload: Encodable {
+  let platform: String
+  let appVersion: String?
+  let statusText: String?
+  let batteryPct: Double?
+}
+
+struct CompanionLocationPayload: Encodable {
+  let latitude: Double
+  let longitude: Double
+  let source: String
+}
+
+private struct NodeRegisterParams: Encodable {
+  let nodeId: String
+  let role: String
+  let platform: String
+  let capabilities: [String]
+}
+
+private struct NodeStatusSetParams: Encodable {
+  let nodeId: String
+  let status: CompanionStatusPayload
+}
+
+private struct NodeLocationSetParams: Encodable {
+  let nodeId: String
+  let location: CompanionLocationPayload
+}
+
+private struct NodePushTokenSetParams: Encodable {
+  let nodeId: String
+  let provider: String
+  let token: String
+  let topic: String?
+  let environment: String?
+}
+
+private struct AgentSendParams: Encodable {
+  let message: String
+  let sessionId: String?
+  let awaitResponse: Bool
+}
+
+final class IOSCompanionRuntime {
+  private let bootstrap: CompanionBootstrap
+  private let session: URLSession
+  private var socket: URLSessionWebSocketTask?
+  private var nextRequestId = 1
+  private var heartbeatLoop: Task<Void, Never>?
+
+  init(bootstrap: CompanionBootstrap, session: URLSession = .shared) {
+    self.bootstrap = bootstrap
+    self.session = session
+  }
+
+  func connect() throws {
+    guard socket == nil else { return }
+    guard let url = URL(string: bootstrap.gateway.url) else {
+      throw CompanionRuntimeError.invalidGatewayURL
+    }
+    var request = URLRequest(url: url)
+    if let token = bootstrap.gateway.token, !token.isEmpty {
+      request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+    }
+    let task = session.webSocketTask(with: request)
+    task.resume()
+    socket = task
+  }
+
+  func disconnect() {
+    heartbeatLoop?.cancel()
+    heartbeatLoop = nil
+    socket?.cancel(with: .goingAway, reason: nil)
+    socket = nil
+  }
+
+  func registerNode() async throws {
+    try await sendRpc(
+      method: "node.register",
+      params: NodeRegisterParams(
+        nodeId: bootstrap.node.nodeId,
+        role: bootstrap.node.role,
+        platform: bootstrap.node.platform,
+        capabilities: bootstrap.node.capabilities
+      )
+    )
+  }
+
+  func publishStatus(_ status: CompanionStatusPayload) async throws {
+    try await sendRpc(
+      method: "node.status.set",
+      params: NodeStatusSetParams(nodeId: bootstrap.node.nodeId, status: status)
+    )
+  }
+
+  func publishLocation(_ location: CompanionLocationPayload) async throws {
+    try await sendRpc(
+      method: "node.location.set",
+      params: NodeLocationSetParams(nodeId: bootstrap.node.nodeId, location: location)
+    )
+  }
+
+  func registerPushToken(token: String, topic: String? = nil, environment: String? = nil) async throws {
+    try await sendRpc(
+      method: "node.push_token.set",
+      params: NodePushTokenSetParams(
+        nodeId: bootstrap.node.nodeId,
+        provider: "apns",
+        token: token,
+        topic: topic,
+        environment: environment
+      )
+    )
+  }
+
+  func sendHandoff(message: String, sessionId: String? = nil) async throws {
+    try await sendRpc(
+      method: "agent.send",
+      params: AgentSendParams(message: message, sessionId: sessionId, awaitResponse: true)
+    )
+  }
+
+  func startHeartbeatLoop(statusFactory: @escaping () -> CompanionStatusPayload) {
+    heartbeatLoop?.cancel()
+    let interval = UInt64(max(bootstrap.runtime.heartbeatSeconds, 1)) * 1_000_000_000
+    heartbeatLoop = Task { [weak self] in
+      while !Task.isCancelled {
+        guard let self else { return }
+        try? await self.publishStatus(statusFactory())
+        try? await Task.sleep(nanoseconds: interval)
+      }
+    }
+  }
+
+  private func sendRpc<Params: Encodable>(method: String, params: Params) async throws {
+    guard let socket else {
+      throw CompanionRuntimeError.notConnected
+    }
+    let request = JsonRpcRequest(id: nextRequestId, method: method, params: params)
+    nextRequestId += 1
+    let data = try JSONEncoder().encode(request)
+    guard let text = String(data: data, encoding: .utf8) else {
+      throw CompanionRuntimeError.encodingFailure
+    }
+    try await socket.send(.string(text))
+  }
+}
+
+// Generated for node: ios-reference-shell (ios)
diff --git a/apps/companion/ios/README.md b/apps/companion/ios/README.md
index 1e83261..e365cc7 100644
--- a/apps/companion/ios/README.md
+++ b/apps/companion/ios/README.md
@@ -1,11 +1,12 @@
-# Flynn Companion ios Shell Template
+# Flynn Companion iOS Shell Template
 
-This directory contains a generated starter template for a ios companion shell.
+This directory contains a generated starter template for an iOS companion shell.
 
 Files:
 - `companion.bootstrap.json`: resolved Flynn companion bootstrap contract
-- `CompanionBootstrap.swift`: platform-native starter model/wrapper snippet
+- `CompanionBootstrap.swift`
+- `IOSCompanionRuntime.swift`
 
 Notes:
 - These templates are intentionally minimal and should be integrated into your app project.
-- Runtime transport should use Flynn gateway JSON-RPC node methods (`node.register`, `node.status.set`, `node.location.set`, `node.push_token.set`).
+- Runtime transport should use Flynn gateway JSON-RPC node methods (`node.register`, `node.status.set`, `node.location.set`, `node.push_token.set`, `agent.send`).
diff --git a/apps/companion/ios/companion.bootstrap.json b/apps/companion/ios/companion.bootstrap.json
index 947f6a3..429f009 100644
--- a/apps/companion/ios/companion.bootstrap.json
+++ b/apps/companion/ios/companion.bootstrap.json
@@ -1,6 +1,6 @@
 {
   "schemaVersion": 1,
-  "generatedAt": "2026-02-27T04:50:38.373Z",
+  "generatedAt": "2026-02-27T04:56:19.684Z",
   "gateway": {
     "url": "ws://127.0.0.1:18800"
   },
diff --git a/apps/companion/macos-app/Sources/FlynnCompanionMenuBar/Resources/companion.bootstrap.json b/apps/companion/macos-app/Sources/FlynnCompanionMenuBar/Resources/companion.bootstrap.json
index cf73862..f99b1f6 100644
--- a/apps/companion/macos-app/Sources/FlynnCompanionMenuBar/Resources/companion.bootstrap.json
+++ b/apps/companion/macos-app/Sources/FlynnCompanionMenuBar/Resources/companion.bootstrap.json
@@ -1,6 +1,6 @@
 {
   "schemaVersion": 1,
-  "generatedAt": "2026-02-27T04:50:38.373Z",
+  "generatedAt": "2026-02-27T04:56:19.684Z",
   "gateway": {
     "url": "ws://127.0.0.1:18800"
   },
diff --git a/apps/companion/macos/README.md b/apps/companion/macos/README.md
index bccde38..2d25b29 100644
--- a/apps/companion/macos/README.md
+++ b/apps/companion/macos/README.md
@@ -1,11 +1,11 @@
-# Flynn Companion macos Shell Template
+# Flynn Companion macOS Shell Template
 
-This directory contains a generated starter template for a macos companion shell.
+This directory contains a generated starter template for a macOS companion shell.
 
 Files:
 - `companion.bootstrap.json`: resolved Flynn companion bootstrap contract
-- `MenuBarCompanion.swift`: platform-native starter model/wrapper snippet
+- `MenuBarCompanion.swift`
 
 Notes:
 - These templates are intentionally minimal and should be integrated into your app project.
-- Runtime transport should use Flynn gateway JSON-RPC node methods (`node.register`, `node.status.set`, `node.location.set`, `node.push_token.set`).
+- Runtime transport should use Flynn gateway JSON-RPC node methods (`node.register`, `node.status.set`, `node.location.set`, `node.push_token.set`, `agent.send`).
diff --git a/apps/companion/macos/companion.bootstrap.json b/apps/companion/macos/companion.bootstrap.json
index d9425bf..49ce5ee 100644
--- a/apps/companion/macos/companion.bootstrap.json
+++ b/apps/companion/macos/companion.bootstrap.json
@@ -1,6 +1,6 @@
 {
   "schemaVersion": 1,
-  "generatedAt": "2026-02-27T04:50:38.373Z",
+  "generatedAt": "2026-02-27T04:56:19.684Z",
   "gateway": {
     "url": "ws://127.0.0.1:18800"
   },
diff --git a/docs/api/PROTOCOL.md b/docs/api/PROTOCOL.md
index 42edfc3..0239342 100644
--- a/docs/api/PROTOCOL.md
+++ b/docs/api/PROTOCOL.md
@@ -1866,7 +1866,7 @@ For more implementation details, see:
 - Companion release bundle helper: `src/companion/releaseBundle.ts` (writes bootstrap JSON + launcher script + README + `CHECKSUMS.sha256` + `RELEASE_MANIFEST.json`; optional `CHECKSUMS.sha256.sig` when a signing key is provided. Launcher performs checksum verification before exec.)
 - Companion release bundle verifier: `src/companion/releaseVerify.ts` (validates `CHECKSUMS.sha256` and optional signature metadata against a provided public key)
 - Companion release automation pipeline: `src/companion/releasePipeline.ts` + `scripts/build-companion-release-bundle.ts` (build-and-verify workflow for deterministic companion artifact generation)
-- Companion shell template helper: `src/companion/shellTemplate.ts` (writes platform-native starter template files for `macos`, `ios`, and `android` shell scaffolding)
+- Companion shell template helper: `src/companion/shellTemplate.ts` (writes platform-native starter template files for `macos`, `ios`, and `android` shell scaffolding, including iOS/Android runtime skeletons for `node.register` + status/location/push + `agent.send`)
 - Companion macOS menu-bar app scaffold helper: `src/companion/macosMenuBarApp.ts` (writes runnable Swift Package menu-bar app starter surface)
 - Companion reference app exporter: `src/companion/referenceApps.ts` + `scripts/export-companion-reference-apps.ts` (regenerates in-repo platform starter app directories, including `apps/companion/macos-app`)
 - CI artifact workflow: `.github/workflows/companion-release-bundle.yml` (manual dispatch bundle build/verify/upload pipeline)
diff --git a/docs/architecture/AGENT_DIAGRAM.md b/docs/architecture/AGENT_DIAGRAM.md
index 7dd0c84..586da9b 100644
--- a/docs/architecture/AGENT_DIAGRAM.md
+++ b/docs/architecture/AGENT_DIAGRAM.md
@@ -159,7 +159,7 @@ Gateway streaming UX signals:
 - `flynn companion --export-release-bundle <dir>` can emit a distributable shell bundle (bootstrap JSON + launcher + README + SHA-256 checksums) for desktop/mobile packaging pipelines.
 - `flynn companion --export-release-bundle ... --signing-key <pem>` can additionally emit `CHECKSUMS.sha256.sig` for signed artifact verification pipelines.
 - `flynn companion --verify-release-bundle <dir>` can validate bundle checksums and optional signatures before installation or rollout.
-- `flynn companion --export-shell-template <dir>` can emit platform starter shell templates (macOS/iOS/Android native scaffold files + bootstrap JSON) for reference app bootstrapping.
+- `flynn companion --export-shell-template <dir>` can emit platform starter shell templates (macOS/iOS/Android native scaffold files + bootstrap JSON), including iOS/Android runtime skeletons for registration, heartbeat/status, location/push updates, and handoff.
 - `pnpm companion:bundle -- --output <dir> ...` runs a build-and-verify release pipeline for repeatable companion artifact generation.
 - `pnpm companion:reference-apps -- --output apps/companion` regenerates in-repo macOS/iOS/Android reference app starter surfaces plus a runnable `macos-app` Swift Package menu-bar scaffold.
 - `.github/workflows/companion-release-bundle.yml` provides CI artifact generation for companion release bundles using the same build-and-verify pipeline.
diff --git a/docs/architecture/GATEWAY_SESSIONS_AND_QUEUE.md b/docs/architecture/GATEWAY_SESSIONS_AND_QUEUE.md
index 8f8c165..16b5fd5 100644
--- a/docs/architecture/GATEWAY_SESSIONS_AND_QUEUE.md
+++ b/docs/architecture/GATEWAY_SESSIONS_AND_QUEUE.md
@@ -26,7 +26,7 @@ If you only want the protocol surface, see `docs/api/PROTOCOL.md`.
 - Companion release-bundle exports can optionally be signed (`--signing-key`, `--signing-key-id`) to emit `CHECKSUMS.sha256.sig` for distribution trust verification.
 - Companion release bundles can be verified before install via `flynn companion --verify-release-bundle <dir>` with optional signature-key checks.
 - Companion packaging automation is available via `pnpm companion:bundle -- --output <dir> ...`, which builds and verifies the release bundle in one pass.
-- Companion platform starter scaffolds can be generated via `flynn companion --export-shell-template <dir>` for macOS/iOS/Android reference app bootstrapping.
+- Companion platform starter scaffolds can be generated via `flynn companion --export-shell-template <dir>` for macOS/iOS/Android reference app bootstrapping, including iOS/Android runtime skeletons that issue `node.register`, `node.status.set`, `node.location.set`, `node.push_token.set`, and `agent.send`.
 - Companion reference app directories can be regenerated via `pnpm companion:reference-apps -- --output apps/companion` for repo-shipped starter surfaces, including a runnable `macos-app` Swift Package menu-bar scaffold.
 - CI workflow `.github/workflows/companion-release-bundle.yml` mirrors this pipeline for manual artifact generation/upload.
 - Companion CLI supports one-shot shell bootstrap metadata for live sessions (`--app-version`/`--status-text`, `--latitude`/`--longitude`, `--push-token`) so desktop/mobile wrappers can initialize node status/location/push in a single launch flow.
diff --git a/docs/operations/COMPANION_RELEASE_BUNDLE.md b/docs/operations/COMPANION_RELEASE_BUNDLE.md
index fefa2b6..2b20a32 100644
--- a/docs/operations/COMPANION_RELEASE_BUNDLE.md
+++ b/docs/operations/COMPANION_RELEASE_BUNDLE.md
@@ -75,7 +75,9 @@ flynn companion \
 Generated files:
 
 - `companion.bootstrap.json`
-- platform starter file (`CompanionBootstrap.swift`, `CompanionBootstrap.kt`, or `MenuBarCompanion.swift`)
+- `MenuBarCompanion.swift` (macOS)
+- `CompanionBootstrap.swift` + `IOSCompanionRuntime.swift` (iOS)
+- `CompanionBootstrap.kt` + `AndroidCompanionRuntime.kt` (Android)
 - `README.md`
 
 ## Verify Bundle Integrity
diff --git a/docs/plans/2026-02-26-personal-assistant-productization-plan.md b/docs/plans/2026-02-26-personal-assistant-productization-plan.md
index 63cf704..8bfc8a7 100644
--- a/docs/plans/2026-02-26-personal-assistant-productization-plan.md
+++ b/docs/plans/2026-02-26-personal-assistant-productization-plan.md
@@ -6,7 +6,7 @@ Scope: ship the remaining product-layer capabilities that make Flynn feel like a
 
 ## Rebaseline (What Is Already Done)
 
-Completion update (2026-02-27): all roadmap phases are now implemented, including companion app-surface packaging outputs (bootstrap export, signed/verified release bundles, reference app starter surfaces including a runnable macOS menu-bar Swift Package scaffold, and CI artifact workflow), voice reliability, browser workflow reliability, and onboarding first-success improvements.
+Completion update (2026-02-27): all roadmap phases are now implemented, including companion app-surface packaging outputs (bootstrap export, signed/verified release bundles, reference app starter surfaces including a runnable macOS menu-bar Swift Package scaffold plus iOS/Android runtime shell skeletons, and CI artifact workflow), voice reliability, browser workflow reliability, and onboarding first-success improvements.
 
 The following were previously treated as gaps but are already implemented in Flynn:
 
@@ -51,7 +51,7 @@ Within 8-10 weeks, ship a stable "Personal Assistant Mode" that supports:
 2. Ship a minimal mobile companion shell (iOS + Android) for registration, status, push token, and message handoff.
 3. Add signed release artifacts and installation docs.
 
-Status update (2026-02-27): companion bootstrap-manifest export is now available via `flynn companion --export-bootstrap <path|->` as a packaging contract for desktop/mobile shells, `flynn companion --export-release-bundle <dir>` now emits bundle artifacts (bootstrap JSON + launcher + README + `CHECKSUMS.sha256` + `RELEASE_MANIFEST.json`, optional `CHECKSUMS.sha256.sig` with `--signing-key`), `flynn companion --verify-release-bundle <dir>` now validates checksum/signature artifacts before install, `pnpm companion:bundle -- --output <dir> ...` now provides one-pass build-and-verify automation, `.github/workflows/companion-release-bundle.yml` provides CI artifact build/verify/upload, `flynn companion --export-shell-template <dir>` now emits macOS/iOS/Android starter shell templates, `pnpm companion:reference-apps` now regenerates in-repo macOS/iOS/Android reference app starter directories plus `apps/companion/macos-app` runnable menu-bar scaffold, and `flynn companion` supports one-shot status/location/push bootstrap flags (`--app-version`, `--latitude/--longitude`, `--push-token`) so thin shells can initialize companion metadata in a single run.
+Status update (2026-02-27): companion bootstrap-manifest export is now available via `flynn companion --export-bootstrap <path|->` as a packaging contract for desktop/mobile shells, `flynn companion --export-release-bundle <dir>` now emits bundle artifacts (bootstrap JSON + launcher + README + `CHECKSUMS.sha256` + `RELEASE_MANIFEST.json`, optional `CHECKSUMS.sha256.sig` with `--signing-key`), `flynn companion --verify-release-bundle <dir>` now validates checksum/signature artifacts before install, `pnpm companion:bundle -- --output <dir> ...` now provides one-pass build-and-verify automation, `.github/workflows/companion-release-bundle.yml` provides CI artifact build/verify/upload, `flynn companion --export-shell-template <dir>` now emits macOS/iOS/Android starter shell templates including iOS/Android runtime skeletons for register/status/location/push/handoff flows, `pnpm companion:reference-apps` now regenerates in-repo macOS/iOS/Android reference app starter directories plus `apps/companion/macos-app` runnable menu-bar scaffold, and `flynn companion` supports one-shot status/location/push bootstrap flags (`--app-version`, `--latitude/--longitude`, `--push-token`) so thin shells can initialize companion metadata in a single run.
 
 ### Implementation Anchors
 
diff --git a/docs/plans/state.json b/docs/plans/state.json
index 558c99d..2f1152b 100644
--- a/docs/plans/state.json
+++ b/docs/plans/state.json
@@ -7018,13 +7018,21 @@
       "status": "completed",
       "date": "2026-02-27",
       "updated": "2026-02-27",
-      "summary": "Added platform shell-template export for reference companion apps. `flynn companion --export-shell-template <dir>` now writes platform starter scaffolds for macOS/iOS/Android (`MenuBarCompanion.swift`, `CompanionBootstrap.swift`, `CompanionBootstrap.kt`) plus bootstrap JSON and template README.",
+      "summary": "Expanded platform shell-template export for reference companion apps. `flynn companion --export-shell-template <dir>` now writes macOS/iOS/Android starter scaffolds with iOS/Android runtime skeleton files (`IOSCompanionRuntime.swift`, `AndroidCompanionRuntime.kt`) covering register/status/location/push/handoff JSON-RPC calls, plus bootstrap JSON and template README.",
       "files_modified": [
         "src/companion/shellTemplate.ts",
         "src/companion/shellTemplate.test.ts",
         "src/companion/index.ts",
         "src/cli/companion.ts",
         "src/cli/companion.test.ts",
+        "apps/companion/ios/CompanionBootstrap.swift",
+        "apps/companion/ios/IOSCompanionRuntime.swift",
+        "apps/companion/ios/README.md",
+        "apps/companion/ios/companion.bootstrap.json",
+        "apps/companion/android/CompanionBootstrap.kt",
+        "apps/companion/android/AndroidCompanionRuntime.kt",
+        "apps/companion/android/README.md",
+        "apps/companion/android/companion.bootstrap.json",
         "README.md",
         "docs/api/PROTOCOL.md",
         "docs/architecture/AGENT_DIAGRAM.md",
@@ -7033,7 +7041,7 @@
         "docs/plans/2026-02-26-personal-assistant-productization-plan.md",
         "docs/plans/state.json"
       ],
-      "test_status": "pnpm test:run src/cli/companion.test.ts src/companion/shellTemplate.test.ts + pnpm typecheck passing"
+      "test_status": "pnpm test:run src/companion/shellTemplate.test.ts src/companion/referenceApps.test.ts + pnpm typecheck passing"
     },
     "personal-assistant-productization-phase1-companion-signed-release-artifacts": {
       "status": "completed",
@@ -7213,7 +7221,7 @@
     "tier2_completion": "4/4 (100%) — inbound webhooks, vector memory search, Dockerfile, heartbeat monitor",
     "tier3_completion": "5/5 (100%) — lane queue, credential redaction, web UI token dashboard, xAI (Grok) provider, Voyage AI embeddings",
     "tier4_completion": "4/4 (100%) — gateway lock, shell completion, Tailscale Serve/Funnel, DM pairing codes",
-    "feature_gap_scorecard": "rebaselined 2026-02-26 and finalized 2026-02-27 — channel breadth, setup wizard, browser workflow reliability primitives (wait/assert/extract/retries/checkpoints/guardrails/budgets), companion reconnect/runtime-handoff foundations, companion packaging/distribution primitives (bootstrap export + release-bundle artifacts + checksum manifests + release manifest artifact + optional signatures + verification mode + checksum-gated launcher + one-pass build/verify automation + CI workflow), repo-shipped macOS/iOS/Android reference app starter surfaces plus runnable macOS menu-bar Swift Package scaffold (`apps/companion/macos-app`), one-shot status/location/push shell bootstrap controls, voice reliability hardening (talk controls + TTS fallback/health + interruption-safe cancel semantics), and onboarding first-success funnel improvements are implemented.",
+    "feature_gap_scorecard": "rebaselined 2026-02-26 and finalized 2026-02-27 — channel breadth, setup wizard, browser workflow reliability primitives (wait/assert/extract/retries/checkpoints/guardrails/budgets), companion reconnect/runtime-handoff foundations, companion packaging/distribution primitives (bootstrap export + release-bundle artifacts + checksum manifests + release manifest artifact + optional signatures + verification mode + checksum-gated launcher + one-pass build/verify automation + CI workflow), repo-shipped macOS/iOS/Android reference app starter surfaces plus runnable macOS menu-bar Swift Package scaffold (`apps/companion/macos-app`) and iOS/Android runtime shell skeletons (`IOSCompanionRuntime.swift`, `AndroidCompanionRuntime.kt`), one-shot status/location/push shell bootstrap controls, voice reliability hardening (talk controls + TTS fallback/health + interruption-safe cancel semantics), and onboarding first-success funnel improvements are implemented.",
     "operator_dx_milestone": "Phase 3 (Live Ops Dashboard): 2/2 plans complete — milestone done",
     "dashboard_observability": "completed — service health graphs + core service log viewer added to web UI via observability RPCs and bounded backend sampling",
     "gmail_auth_cli": "flynn gmail-auth command implemented with OAuth2 flow, doctor check, config routed to Telegram",
@@ -7246,7 +7254,7 @@
     "deeper_surfaces_phase3_companion_canvas_voice": "completed — companion reconnect resilience (auto-reconnect with backoff, pending-wait cancellation on disconnect), canvas artifact persistence (SQLite-backed store, daemon-restart durability), voice TTS fallback coverage (text-only reply on TTS failure, no dropped responses)",
     "deeper_surfaces_phase4_rollout": "completed — phase 4 rollout and operator readiness plan documented: canary rollout plan by feature flag/surface, explicit rollback playbook, operator docs and architecture/protocol docs synchronized",
     "post_phase_test_fixes": "completed — fixed 4 test failures introduced by phases 1-3: iOS/Android push listNodes (missing publishHeartbeat before platform-filtered query), server.test agent.send (run_state events now precede done; added sendAndWaitForDone helper), httpBody 413 (req.destroy() closed socket before response could be sent; replaced with Connection: close header on 413 responses)",
-    "personal_assistant_productization_plan": "completed — roadmap phases delivered: companion app-surface packaging/distribution outputs (including reference starters + CI), voice reliability, browser workflow reliability, and onboarding first-success funnel.",
+    "personal_assistant_productization_plan": "completed — roadmap phases delivered: companion app-surface packaging/distribution outputs (including runnable/reference starters + iOS/Android runtime shell skeletons + CI), voice reliability, browser workflow reliability, and onboarding first-success funnel.",
     "subagents_support": "completed — subagent phases 1-3 shipped with `subagent.spawn/send/list/cancel/delete/summary`, per-child queue mode (`followup|interrupt`), budgets (`max_turns`, `max_total_tokens`, `turn_timeout_ms`), tool-profile overrides, trace-linked audit events, `/subagents` inspection commands, and focused regression tests."
   },
   "soul_md_and_cron_create": {
diff --git a/src/companion/referenceApps.ts b/src/companion/referenceApps.ts
index 1f6a4c8..75196ef 100644
--- a/src/companion/referenceApps.ts
+++ b/src/companion/referenceApps.ts
@@ -41,6 +41,8 @@ This directory contains generated companion starter shells for:
 - Android shell
 
 These are reference starters, not production binaries. Use them as a baseline for app packaging and distribution workflows.
+
+iOS/Android starter directories include bootstrap plus runtime-skeleton files for register/status/location/push/handoff flows.
 `;
 }
 
diff --git a/src/companion/shellTemplate.test.ts b/src/companion/shellTemplate.test.ts
index cff8654..855d4ed 100644
--- a/src/companion/shellTemplate.test.ts
+++ b/src/companion/shellTemplate.test.ts
@@ -32,18 +32,23 @@ describe('writeCompanionShellTemplate', () => {
     });
 
     const templateRaw = await readFile(`${outDir}/CompanionBootstrap.swift`, 'utf8');
+    const runtimeRaw = await readFile(`${outDir}/IOSCompanionRuntime.swift`, 'utf8');
     const manifestRaw = await readFile(`${outDir}/companion.bootstrap.json`, 'utf8');
     const readmeRaw = await readFile(`${outDir}/README.md`, 'utf8');
 
     expect(result.files).toEqual([
       `${outDir}/companion.bootstrap.json`,
       `${outDir}/CompanionBootstrap.swift`,
+      `${outDir}/IOSCompanionRuntime.swift`,
       `${outDir}/README.md`,
     ]);
     expect(templateRaw).toContain('struct CompanionBootstrap: Codable');
-    expect(templateRaw).toContain('node.push_token.set');
+    expect(runtimeRaw).toContain('final class IOSCompanionRuntime');
+    expect(runtimeRaw).toContain('"node.push_token.set"');
+    expect(runtimeRaw).toContain('"agent.send"');
     expect(JSON.parse(manifestRaw)).toMatchObject({ node: { nodeId: 'test-node' } });
     expect(readmeRaw).toContain('Shell Template');
+    expect(readmeRaw).toContain('IOSCompanionRuntime.swift');
 
     await rm(tempDir, { recursive: true, force: true });
   });
@@ -65,8 +70,11 @@ describe('writeCompanionShellTemplate', () => {
     });
 
     const androidTemplate = await readFile(`${androidDir}/CompanionBootstrap.kt`, 'utf8');
+    const androidRuntime = await readFile(`${androidDir}/AndroidCompanionRuntime.kt`, 'utf8');
     const macosTemplate = await readFile(`${macosDir}/MenuBarCompanion.swift`, 'utf8');
     expect(androidTemplate).toContain('data class CompanionBootstrap');
+    expect(androidRuntime).toContain('class AndroidCompanionRuntime');
+    expect(androidRuntime).toContain("\"node.register\"");
     expect(macosTemplate).toContain('launchFlynnCompanion');
 
     await rm(tempDir, { recursive: true, force: true });
diff --git a/src/companion/shellTemplate.ts b/src/companion/shellTemplate.ts
index 476f1c2..286bb47 100644
--- a/src/companion/shellTemplate.ts
+++ b/src/companion/shellTemplate.ts
@@ -15,7 +15,12 @@ export interface WriteCompanionShellTemplateResult {
   files: string[];
 }
 
-function swiftTemplate(manifest: CompanionBootstrapManifest): string {
+interface TemplateArtifact {
+  filename: string;
+  body: string;
+}
+
+function macosTemplate(manifest: CompanionBootstrapManifest): string {
   return `import Foundation
 
 struct CompanionBootstrap: Codable {
@@ -57,7 +62,7 @@ func launchFlynnCompanion() throws {
 `;
 }
 
-function iosTemplate(manifest: CompanionBootstrapManifest): string {
+function iosBootstrapTemplate(manifest: CompanionBootstrapManifest): string {
   return `import Foundation
 
 // Reference iOS bootstrap model for integrating with Flynn gateway runtime.
@@ -93,7 +98,176 @@ struct Runtime: Codable {
 `;
 }
 
-function androidTemplate(manifest: CompanionBootstrapManifest): string {
+function iosRuntimeTemplate(manifest: CompanionBootstrapManifest): string {
+  return `import Foundation
+
+enum CompanionRuntimeError: Error {
+  case invalidGatewayURL
+  case notConnected
+  case encodingFailure
+}
+
+private struct JsonRpcRequest<Params: Encodable>: Encodable {
+  let jsonrpc = "2.0"
+  let id: Int
+  let method: String
+  let params: Params
+}
+
+struct CompanionStatusPayload: Encodable {
+  let platform: String
+  let appVersion: String?
+  let statusText: String?
+  let batteryPct: Double?
+}
+
+struct CompanionLocationPayload: Encodable {
+  let latitude: Double
+  let longitude: Double
+  let source: String
+}
+
+private struct NodeRegisterParams: Encodable {
+  let nodeId: String
+  let role: String
+  let platform: String
+  let capabilities: [String]
+}
+
+private struct NodeStatusSetParams: Encodable {
+  let nodeId: String
+  let status: CompanionStatusPayload
+}
+
+private struct NodeLocationSetParams: Encodable {
+  let nodeId: String
+  let location: CompanionLocationPayload
+}
+
+private struct NodePushTokenSetParams: Encodable {
+  let nodeId: String
+  let provider: String
+  let token: String
+  let topic: String?
+  let environment: String?
+}
+
+private struct AgentSendParams: Encodable {
+  let message: String
+  let sessionId: String?
+  let awaitResponse: Bool
+}
+
+final class IOSCompanionRuntime {
+  private let bootstrap: CompanionBootstrap
+  private let session: URLSession
+  private var socket: URLSessionWebSocketTask?
+  private var nextRequestId = 1
+  private var heartbeatLoop: Task<Void, Never>?
+
+  init(bootstrap: CompanionBootstrap, session: URLSession = .shared) {
+    self.bootstrap = bootstrap
+    self.session = session
+  }
+
+  func connect() throws {
+    guard socket == nil else { return }
+    guard let url = URL(string: bootstrap.gateway.url) else {
+      throw CompanionRuntimeError.invalidGatewayURL
+    }
+    var request = URLRequest(url: url)
+    if let token = bootstrap.gateway.token, !token.isEmpty {
+      request.setValue("Bearer \\(token)", forHTTPHeaderField: "Authorization")
+    }
+    let task = session.webSocketTask(with: request)
+    task.resume()
+    socket = task
+  }
+
+  func disconnect() {
+    heartbeatLoop?.cancel()
+    heartbeatLoop = nil
+    socket?.cancel(with: .goingAway, reason: nil)
+    socket = nil
+  }
+
+  func registerNode() async throws {
+    try await sendRpc(
+      method: "node.register",
+      params: NodeRegisterParams(
+        nodeId: bootstrap.node.nodeId,
+        role: bootstrap.node.role,
+        platform: bootstrap.node.platform,
+        capabilities: bootstrap.node.capabilities
+      )
+    )
+  }
+
+  func publishStatus(_ status: CompanionStatusPayload) async throws {
+    try await sendRpc(
+      method: "node.status.set",
+      params: NodeStatusSetParams(nodeId: bootstrap.node.nodeId, status: status)
+    )
+  }
+
+  func publishLocation(_ location: CompanionLocationPayload) async throws {
+    try await sendRpc(
+      method: "node.location.set",
+      params: NodeLocationSetParams(nodeId: bootstrap.node.nodeId, location: location)
+    )
+  }
+
+  func registerPushToken(token: String, topic: String? = nil, environment: String? = nil) async throws {
+    try await sendRpc(
+      method: "node.push_token.set",
+      params: NodePushTokenSetParams(
+        nodeId: bootstrap.node.nodeId,
+        provider: "apns",
+        token: token,
+        topic: topic,
+        environment: environment
+      )
+    )
+  }
+
+  func sendHandoff(message: String, sessionId: String? = nil) async throws {
+    try await sendRpc(
+      method: "agent.send",
+      params: AgentSendParams(message: message, sessionId: sessionId, awaitResponse: true)
+    )
+  }
+
+  func startHeartbeatLoop(statusFactory: @escaping () -> CompanionStatusPayload) {
+    heartbeatLoop?.cancel()
+    let interval = UInt64(max(bootstrap.runtime.heartbeatSeconds, 1)) * 1_000_000_000
+    heartbeatLoop = Task { [weak self] in
+      while !Task.isCancelled {
+        guard let self else { return }
+        try? await self.publishStatus(statusFactory())
+        try? await Task.sleep(nanoseconds: interval)
+      }
+    }
+  }
+
+  private func sendRpc<Params: Encodable>(method: String, params: Params) async throws {
+    guard let socket else {
+      throw CompanionRuntimeError.notConnected
+    }
+    let request = JsonRpcRequest(id: nextRequestId, method: method, params: params)
+    nextRequestId += 1
+    let data = try JSONEncoder().encode(request)
+    guard let text = String(data: data, encoding: .utf8) else {
+      throw CompanionRuntimeError.encodingFailure
+    }
+    try await socket.send(.string(text))
+  }
+}
+
+// Generated for node: ${manifest.node.nodeId} (${manifest.node.platform})
+`;
+}
+
+function androidBootstrapTemplate(manifest: CompanionBootstrapManifest): string {
   return `package flynn.companion
 
 // Reference Android bootstrap model for integrating with Flynn gateway runtime.
@@ -129,41 +303,182 @@ data class Runtime(
 `;
 }
 
-function templateFilename(platform: CompanionShellTemplatePlatform): string {
-  if (platform === 'macos') {
-    return 'MenuBarCompanion.swift';
-  }
-  if (platform === 'ios') {
-    return 'CompanionBootstrap.swift';
-  }
-  return 'CompanionBootstrap.kt';
+function androidRuntimeTemplate(manifest: CompanionBootstrapManifest): string {
+  return `package flynn.companion
+
+import java.util.concurrent.Executors
+import java.util.concurrent.ScheduledFuture
+import java.util.concurrent.TimeUnit
+import org.json.JSONArray
+import org.json.JSONObject
+
+interface CompanionTransport {
+  fun connect(url: String, token: String?)
+  fun disconnect()
+  fun send(rawMessage: String)
 }
 
-function templateBody(
+data class CompanionStatusPayload(
+  val platform: String,
+  val appVersion: String? = null,
+  val statusText: String? = null,
+  val batteryPct: Double? = null
+)
+
+data class CompanionLocationPayload(
+  val latitude: Double,
+  val longitude: Double,
+  val source: String = "device"
+)
+
+class AndroidCompanionRuntime(
+  private val bootstrap: CompanionBootstrap,
+  private val transport: CompanionTransport
+) {
+  private var nextRequestId: Int = 1
+  private val scheduler = Executors.newSingleThreadScheduledExecutor()
+  private var heartbeatFuture: ScheduledFuture<*>? = null
+
+  fun connect() {
+    transport.connect(bootstrap.gateway.url, bootstrap.gateway.token)
+  }
+
+  fun disconnect() {
+    heartbeatFuture?.cancel(true)
+    heartbeatFuture = null
+    transport.disconnect()
+  }
+
+  fun registerNode() {
+    val params = JSONObject()
+      .put("nodeId", bootstrap.node.nodeId)
+      .put("role", bootstrap.node.role)
+      .put("platform", bootstrap.node.platform)
+      .put("capabilities", JSONArray(bootstrap.node.capabilities))
+    sendRpc("node.register", params)
+  }
+
+  fun publishStatus(status: CompanionStatusPayload) {
+    val statusJson = JSONObject()
+      .put("platform", status.platform)
+    status.appVersion?.let { statusJson.put("appVersion", it) }
+    status.statusText?.let { statusJson.put("statusText", it) }
+    status.batteryPct?.let { statusJson.put("batteryPct", it) }
+    sendRpc(
+      "node.status.set",
+      JSONObject()
+        .put("nodeId", bootstrap.node.nodeId)
+        .put("status", statusJson)
+    )
+  }
+
+  fun publishLocation(location: CompanionLocationPayload) {
+    sendRpc(
+      "node.location.set",
+      JSONObject()
+        .put("nodeId", bootstrap.node.nodeId)
+        .put(
+          "location",
+          JSONObject()
+            .put("latitude", location.latitude)
+            .put("longitude", location.longitude)
+            .put("source", location.source)
+        )
+    )
+  }
+
+  fun registerPushToken(token: String, topic: String? = null) {
+    val params = JSONObject()
+      .put("nodeId", bootstrap.node.nodeId)
+      .put("provider", "fcm")
+      .put("token", token)
+    topic?.let { params.put("topic", it) }
+    sendRpc("node.push_token.set", params)
+  }
+
+  fun sendHandoff(message: String, sessionId: String? = null) {
+    val params = JSONObject()
+      .put("message", message)
+      .put("awaitResponse", true)
+    sessionId?.let { params.put("sessionId", it) }
+    sendRpc("agent.send", params)
+  }
+
+  fun startHeartbeatLoop(statusFactory: () -> CompanionStatusPayload) {
+    heartbeatFuture?.cancel(true)
+    val intervalSeconds = bootstrap.runtime.heartbeatSeconds.coerceAtLeast(1).toLong()
+    heartbeatFuture = scheduler.scheduleAtFixedRate(
+      { publishStatus(statusFactory()) },
+      0L,
+      intervalSeconds,
+      TimeUnit.SECONDS
+    )
+  }
+
+  private fun sendRpc(method: String, params: JSONObject) {
+    val request = JSONObject()
+      .put("jsonrpc", "2.0")
+      .put("id", nextRequestId++)
+      .put("method", method)
+      .put("params", params)
+    transport.send(request.toString())
+  }
+}
+
+// Generated for node: ${manifest.node.nodeId} (${manifest.node.platform})
+`;
+}
+
+function templateArtifacts(
   platform: CompanionShellTemplatePlatform,
   manifest: CompanionBootstrapManifest,
-): string {
+): TemplateArtifact[] {
   if (platform === 'macos') {
-    return swiftTemplate(manifest);
+    return [{ filename: 'MenuBarCompanion.swift', body: macosTemplate(manifest) }];
   }
   if (platform === 'ios') {
-    return iosTemplate(manifest);
+    return [
+      { filename: 'CompanionBootstrap.swift', body: iosBootstrapTemplate(manifest) },
+      { filename: 'IOSCompanionRuntime.swift', body: iosRuntimeTemplate(manifest) },
+    ];
   }
-  return androidTemplate(manifest);
+  return [
+    { filename: 'CompanionBootstrap.kt', body: androidBootstrapTemplate(manifest) },
+    { filename: 'AndroidCompanionRuntime.kt', body: androidRuntimeTemplate(manifest) },
+  ];
 }
 
-function readmeBody(platform: CompanionShellTemplatePlatform): string {
-  return `# Flynn Companion ${platform} Shell Template
+function platformArticle(platform: CompanionShellTemplatePlatform): 'a' | 'an' {
+  if (platform === 'ios' || platform === 'android') {
+    return 'an';
+  }
+  return 'a';
+}
 
-This directory contains a generated starter template for a ${platform} companion shell.
+function displayPlatformName(platform: CompanionShellTemplatePlatform): string {
+  if (platform === 'macos') {
+    return 'macOS';
+  }
+  if (platform === 'ios') {
+    return 'iOS';
+  }
+  return 'Android';
+}
+
+function readmeBody(platform: CompanionShellTemplatePlatform, templateFiles: string[]): string {
+  const platformName = displayPlatformName(platform);
+  const templateList = templateFiles.map((name) => `- \`${name}\``).join('\n');
+  return `# Flynn Companion ${platformName} Shell Template
+
+This directory contains a generated starter template for ${platformArticle(platform)} ${platformName} companion shell.
 
 Files:
 - \`companion.bootstrap.json\`: resolved Flynn companion bootstrap contract
-- \`${templateFilename(platform)}\`: platform-native starter model/wrapper snippet
+${templateList}
 
 Notes:
 - These templates are intentionally minimal and should be integrated into your app project.
-- Runtime transport should use Flynn gateway JSON-RPC node methods (\`node.register\`, \`node.status.set\`, \`node.location.set\`, \`node.push_token.set\`).
+- Runtime transport should use Flynn gateway JSON-RPC node methods (\`node.register\`, \`node.status.set\`, \`node.location.set\`, \`node.push_token.set\`, \`agent.send\`).
 `;
 }
 
@@ -172,16 +487,26 @@ export async function writeCompanionShellTemplate(
 ): Promise<WriteCompanionShellTemplateResult> {
   await mkdir(input.outputDir, { recursive: true });
   const manifestPath = `${input.outputDir}/companion.bootstrap.json`;
-  const templatePath = `${input.outputDir}/${templateFilename(input.platform)}`;
   const readmePath = `${input.outputDir}/README.md`;
+  const artifacts = templateArtifacts(input.platform, input.manifest);
+  const artifactPaths = artifacts.map((artifact) => `${input.outputDir}/${artifact.filename}`);
 
   await writeFile(manifestPath, `${JSON.stringify(input.manifest, null, 2)}\n`, 'utf8');
-  await writeFile(templatePath, templateBody(input.platform, input.manifest), 'utf8');
-  await writeFile(readmePath, readmeBody(input.platform), 'utf8');
+  for (let i = 0; i < artifacts.length; i += 1) {
+    await writeFile(artifactPaths[i], artifacts[i].body, 'utf8');
+  }
+  await writeFile(
+    readmePath,
+    readmeBody(
+      input.platform,
+      artifacts.map((artifact) => artifact.filename),
+    ),
+    'utf8',
+  );
 
   return {
     outputDir: input.outputDir,
     platform: input.platform,
-    files: [manifestPath, templatePath, readmePath],
+    files: [manifestPath, ...artifactPaths, readmePath],
   };
 }