diff --git a/apps/android/app/src/main/java/com/steipete/clawdis/node/NodeRuntime.kt b/apps/android/app/src/main/java/com/steipete/clawdis/node/NodeRuntime.kt
index 5f6b4ec12..55326385d 100644
--- a/apps/android/app/src/main/java/com/steipete/clawdis/node/NodeRuntime.kt
+++ b/apps/android/app/src/main/java/com/steipete/clawdis/node/NodeRuntime.kt
@@ -282,7 +282,7 @@ class NodeRuntime(context: Context) {
 
       val invokeCommands =
         buildList {
-          add(ClawdisCanvasCommand.Show.rawValue)
+          add(ClawdisCanvasCommand.Present.rawValue)
           add(ClawdisCanvasCommand.Hide.rawValue)
           add(ClawdisCanvasCommand.Navigate.rawValue)
           add(ClawdisCanvasCommand.Eval.rawValue)
@@ -558,7 +558,11 @@ class NodeRuntime(context: Context) {
     }
 
     return when (command) {
-      ClawdisCanvasCommand.Show.rawValue -> BridgeSession.InvokeResult.ok(null)
+      ClawdisCanvasCommand.Present.rawValue -> {
+        val url = CanvasController.parseNavigateUrl(paramsJson)
+        canvas.navigate(url)
+        BridgeSession.InvokeResult.ok(null)
+      }
       ClawdisCanvasCommand.Hide.rawValue -> BridgeSession.InvokeResult.ok(null)
       ClawdisCanvasCommand.Navigate.rawValue -> {
         val url = CanvasController.parseNavigateUrl(paramsJson)
diff --git a/apps/android/app/src/main/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstants.kt b/apps/android/app/src/main/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstants.kt
index fdd77e026..4320f548d 100644
--- a/apps/android/app/src/main/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstants.kt
+++ b/apps/android/app/src/main/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstants.kt
@@ -8,7 +8,7 @@ enum class ClawdisCapability(val rawValue: String) {
 }
 
 enum class ClawdisCanvasCommand(val rawValue: String) {
-  Show("canvas.show"),
+  Present("canvas.present"),
   Hide("canvas.hide"),
   Navigate("canvas.navigate"),
   Eval("canvas.eval"),
diff --git a/apps/android/app/src/test/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstantsTest.kt b/apps/android/app/src/test/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstantsTest.kt
index 05b1760ba..b0de85c6b 100644
--- a/apps/android/app/src/test/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstantsTest.kt
+++ b/apps/android/app/src/test/java/com/steipete/clawdis/node/protocol/ClawdisProtocolConstantsTest.kt
@@ -6,7 +6,7 @@ import org.junit.Test
 class ClawdisProtocolConstantsTest {
   @Test
   fun canvasCommandsUseStableStrings() {
-    assertEquals("canvas.show", ClawdisCanvasCommand.Show.rawValue)
+    assertEquals("canvas.present", ClawdisCanvasCommand.Present.rawValue)
     assertEquals("canvas.hide", ClawdisCanvasCommand.Hide.rawValue)
     assertEquals("canvas.navigate", ClawdisCanvasCommand.Navigate.rawValue)
     assertEquals("canvas.eval", ClawdisCanvasCommand.Eval.rawValue)
diff --git a/apps/ios/Sources/Bridge/BridgeConnectionController.swift b/apps/ios/Sources/Bridge/BridgeConnectionController.swift
index d83780569..f6de737f0 100644
--- a/apps/ios/Sources/Bridge/BridgeConnectionController.swift
+++ b/apps/ios/Sources/Bridge/BridgeConnectionController.swift
@@ -173,7 +173,7 @@ final class BridgeConnectionController {
 
     private func currentCommands() -> [String] {
         var commands: [String] = [
-            ClawdisCanvasCommand.show.rawValue,
+            ClawdisCanvasCommand.present.rawValue,
             ClawdisCanvasCommand.hide.rawValue,
             ClawdisCanvasCommand.navigate.rawValue,
             ClawdisCanvasCommand.evalJS.rawValue,
diff --git a/apps/ios/Sources/Model/NodeAppModel.swift b/apps/ios/Sources/Model/NodeAppModel.swift
index d22defa0d..18d281834 100644
--- a/apps/ios/Sources/Model/NodeAppModel.swift
+++ b/apps/ios/Sources/Model/NodeAppModel.swift
@@ -387,7 +387,15 @@ final class NodeAppModel {
 
         do {
             switch command {
-            case ClawdisCanvasCommand.show.rawValue:
+            case ClawdisCanvasCommand.present.rawValue:
+                let params = (try? Self.decodeParams(ClawdisCanvasPresentParams.self, from: req.paramsJSON)) ??
+                    ClawdisCanvasPresentParams()
+                let url = params.url?.trimmingCharacters(in: .whitespacesAndNewlines) ?? ""
+                if url.isEmpty {
+                    self.screen.showDefaultCanvas()
+                } else {
+                    self.screen.navigate(to: url)
+                }
                 return BridgeInvokeResponse(id: req.id, ok: true)
 
             case ClawdisCanvasCommand.hide.rawValue:
diff --git a/apps/ios/Sources/Settings/SettingsTab.swift b/apps/ios/Sources/Settings/SettingsTab.swift
index 02016243f..c3ed69afe 100644
--- a/apps/ios/Sources/Settings/SettingsTab.swift
+++ b/apps/ios/Sources/Settings/SettingsTab.swift
@@ -299,7 +299,7 @@ struct SettingsTab: View {
 
     private func currentCommands() -> [String] {
         var commands: [String] = [
-            ClawdisCanvasCommand.show.rawValue,
+            ClawdisCanvasCommand.present.rawValue,
             ClawdisCanvasCommand.hide.rawValue,
             ClawdisCanvasCommand.navigate.rawValue,
             ClawdisCanvasCommand.evalJS.rawValue,
diff --git a/apps/macos/Sources/Clawdis/ControlRequestHandler.swift b/apps/macos/Sources/Clawdis/ControlRequestHandler.swift
index 40c47f3b5..e2f7c089d 100644
--- a/apps/macos/Sources/Clawdis/ControlRequestHandler.swift
+++ b/apps/macos/Sources/Clawdis/ControlRequestHandler.swift
@@ -95,8 +95,8 @@ enum ControlRequestHandler {
                 deliver: deliver,
                 to: to)
 
-        case let .canvasShow(session, path, placement):
-            return await self.handleCanvasShow(session: session, path: path, placement: placement)
+        case let .canvasPresent(session, path, placement):
+            return await self.handleCanvasPresent(session: session, path: path, placement: placement)
 
         case let .canvasHide(session):
             return await self.handleCanvasHide(session: session)
@@ -235,7 +235,7 @@ enum ControlRequestHandler {
         UserDefaults.standard.object(forKey: cameraEnabledKey) as? Bool ?? false
     }
 
-    private static func handleCanvasShow(
+    private static func handleCanvasPresent(
         session: String,
         path: String?,
         placement: CanvasPlacement?) async -> Response
@@ -243,20 +243,24 @@ enum ControlRequestHandler {
         guard self.canvasEnabled() else { return Response(ok: false, message: "Canvas disabled by user") }
         _ = session
         do {
+            var params: [String: Any] = [:]
             if let path, !path.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty {
-                _ = try await self.invokeLocalNode(
-                    command: ClawdisCanvasCommand.navigate.rawValue,
-                    params: ["url": path],
-                    timeoutMs: 20000)
-            } else {
-                _ = try await self.invokeLocalNode(
-                    command: ClawdisCanvasCommand.show.rawValue,
-                    params: nil,
-                    timeoutMs: 20000)
+                params["url"] = path
             }
-            if placement != nil {
-                return Response(ok: true, message: "Canvas placement ignored (node mode)")
+            if let placement {
+                var placementPayload: [String: Any] = [:]
+                if let x = placement.x { placementPayload["x"] = x }
+                if let y = placement.y { placementPayload["y"] = y }
+                if let width = placement.width { placementPayload["width"] = width }
+                if let height = placement.height { placementPayload["height"] = height }
+                if !placementPayload.isEmpty {
+                    params["placement"] = placementPayload
+                }
             }
+            _ = try await self.invokeLocalNode(
+                command: ClawdisCanvasCommand.present.rawValue,
+                params: params.isEmpty ? nil : params,
+                timeoutMs: 20000)
             return Response(ok: true)
         } catch {
             return Response(ok: false, message: error.localizedDescription)
diff --git a/apps/macos/Sources/Clawdis/DebugSettings.swift b/apps/macos/Sources/Clawdis/DebugSettings.swift
index d5133fe05..c886c6cee 100644
--- a/apps/macos/Sources/Clawdis/DebugSettings.swift
+++ b/apps/macos/Sources/Clawdis/DebugSettings.swift
@@ -489,7 +489,7 @@ struct DebugSettings: View {
                         .font(.caption.monospaced())
                         .frame(width: 160)
                     Button("Show panel") {
-                        Task { await self.canvasShow() }
+                        Task { await self.canvasPresent() }
                     }
                     .buttonStyle(.borderedProminent)
                     Button("Hide panel") {
@@ -750,7 +750,7 @@ extension DebugSettings {
     // MARK: - Canvas debug actions
 
     @MainActor
-    private func canvasShow() async {
+    private func canvasPresent() async {
         self.canvasError = nil
         let session = self.canvasSessionKey.trimmingCharacters(in: .whitespacesAndNewlines)
         do {
diff --git a/apps/macos/Sources/Clawdis/NodeMode/MacNodeModeCoordinator.swift b/apps/macos/Sources/Clawdis/NodeMode/MacNodeModeCoordinator.swift
index 1effbd89e..734349736 100644
--- a/apps/macos/Sources/Clawdis/NodeMode/MacNodeModeCoordinator.swift
+++ b/apps/macos/Sources/Clawdis/NodeMode/MacNodeModeCoordinator.swift
@@ -107,7 +107,7 @@ final class MacNodeModeCoordinator {
 
     private func currentCommands(caps: [String]) -> [String] {
         var commands: [String] = [
-            ClawdisCanvasCommand.show.rawValue,
+            ClawdisCanvasCommand.present.rawValue,
             ClawdisCanvasCommand.hide.rawValue,
             ClawdisCanvasCommand.navigate.rawValue,
             ClawdisCanvasCommand.evalJS.rawValue,
diff --git a/apps/macos/Sources/Clawdis/NodeMode/MacNodeRuntime.swift b/apps/macos/Sources/Clawdis/NodeMode/MacNodeRuntime.swift
index 661f8a61c..10bf3e5fd 100644
--- a/apps/macos/Sources/Clawdis/NodeMode/MacNodeRuntime.swift
+++ b/apps/macos/Sources/Clawdis/NodeMode/MacNodeRuntime.swift
@@ -19,9 +19,19 @@ actor MacNodeRuntime {
         }
         do {
             switch command {
-            case ClawdisCanvasCommand.show.rawValue:
+            case ClawdisCanvasCommand.present.rawValue:
+                let params = (try? Self.decodeParams(ClawdisCanvasPresentParams.self, from: req.paramsJSON)) ??
+                    ClawdisCanvasPresentParams()
+                let urlTrimmed = params.url?.trimmingCharacters(in: .whitespacesAndNewlines) ?? ""
+                let url = urlTrimmed.isEmpty ? nil : urlTrimmed
+                let placement = params.placement.map {
+                    CanvasPlacement(x: $0.x, y: $0.y, width: $0.width, height: $0.height)
+                }
                 try await MainActor.run {
-                    _ = try CanvasManager.shared.show(sessionKey: "main", path: nil)
+                    _ = try CanvasManager.shared.showDetailed(
+                        sessionKey: "main",
+                        target: url,
+                        placement: placement)
                 }
                 return BridgeInvokeResponse(id: req.id, ok: true)
 
diff --git a/apps/macos/Sources/ClawdisCLI/ClawdisCLI.swift b/apps/macos/Sources/ClawdisCLI/ClawdisCLI.swift
index 9086fa56d..e8682b8d4 100644
--- a/apps/macos/Sources/ClawdisCLI/ClawdisCLI.swift
+++ b/apps/macos/Sources/ClawdisCLI/ClawdisCLI.swift
@@ -319,12 +319,12 @@ struct ClawdisCLI {
     private static func parseCanvas(args: inout [String]) throws -> ParsedCLIRequest {
         guard let sub = args.popFirst() else { throw CLIError.help }
         switch sub {
-        case "show":
+        case "present":
             var session = "main"
             var target: String?
             let placement = self.parseCanvasPlacement(args: &args, session: &session, target: &target)
             return ParsedCLIRequest(
-                request: .canvasShow(session: session, path: target, placement: placement),
+                request: .canvasPresent(session: session, path: target, placement: placement),
                 kind: .generic)
         case "a2ui":
             return try self.parseCanvasA2UI(args: &args)
@@ -542,7 +542,7 @@ struct ClawdisCLI {
             return
         }
 
-        if case .canvasShow = parsed.request {
+        if case .canvasPresent = parsed.request {
             if let message = response.message, !message.isEmpty {
                 FileHandle.standardOutput.write(Data((message + "\n").utf8))
             }
@@ -759,7 +759,7 @@ struct ClawdisCLI {
             clawdis-mac node invoke --node <id> --command <name> [--params-json <json>]
 
           Canvas:
-            clawdis-mac canvas show [--session <key>] [--target </...|https://...|file://...>]
+            clawdis-mac canvas present [--session <key>] [--target </...|https://...|file://...>]
               [--x <screenX> --y <screenY>] [--width <w> --height <h>]
             clawdis-mac canvas a2ui push --jsonl <path> [--session <key>]   # A2UI v0.8 JSONL
             clawdis-mac canvas a2ui reset [--session <key>]
diff --git a/apps/macos/Sources/ClawdisIPC/IPC.swift b/apps/macos/Sources/ClawdisIPC/IPC.swift
index ba48b813d..00d05536a 100644
--- a/apps/macos/Sources/ClawdisIPC/IPC.swift
+++ b/apps/macos/Sources/ClawdisIPC/IPC.swift
@@ -122,7 +122,7 @@ public enum Request: Sendable {
     case status
     case agent(message: String, thinking: String?, session: String?, deliver: Bool, to: String?)
     case rpcStatus
-    case canvasShow(session: String, path: String?, placement: CanvasPlacement?)
+    case canvasPresent(session: String, path: String?, placement: CanvasPlacement?)
     case canvasHide(session: String)
     case canvasEval(session: String, javaScript: String)
     case canvasSnapshot(session: String, outPath: String?)
@@ -185,7 +185,7 @@ extension Request: Codable {
         case status
         case agent
         case rpcStatus
-        case canvasShow
+        case canvasPresent
         case canvasHide
         case canvasEval
         case canvasSnapshot
@@ -236,8 +236,8 @@ extension Request: Codable {
         case .rpcStatus:
             try container.encode(Kind.rpcStatus, forKey: .type)
 
-        case let .canvasShow(session, path, placement):
-            try container.encode(Kind.canvasShow, forKey: .type)
+        case let .canvasPresent(session, path, placement):
+            try container.encode(Kind.canvasPresent, forKey: .type)
             try container.encode(session, forKey: .session)
             try container.encodeIfPresent(path, forKey: .path)
             try container.encodeIfPresent(placement, forKey: .placement)
@@ -338,11 +338,11 @@ extension Request: Codable {
         case .rpcStatus:
             self = .rpcStatus
 
-        case .canvasShow:
+        case .canvasPresent:
             let session = try container.decode(String.self, forKey: .session)
             let path = try container.decodeIfPresent(String.self, forKey: .path)
             let placement = try container.decodeIfPresent(CanvasPlacement.self, forKey: .placement)
-            self = .canvasShow(session: session, path: path, placement: placement)
+            self = .canvasPresent(session: session, path: path, placement: placement)
 
         case .canvasHide:
             let session = try container.decode(String.self, forKey: .session)
diff --git a/apps/macos/Tests/ClawdisIPCTests/ControlRequestHandlerTests.swift b/apps/macos/Tests/ClawdisIPCTests/ControlRequestHandlerTests.swift
index 353f72e7f..280c08a52 100644
--- a/apps/macos/Tests/ClawdisIPCTests/ControlRequestHandlerTests.swift
+++ b/apps/macos/Tests/ClawdisIPCTests/ControlRequestHandlerTests.swift
@@ -140,7 +140,7 @@ struct ControlRequestHandlerTests {
     func canvasRequestsReturnDisabledWhenCanvasDisabled() async throws {
         let show = try await Self.withDefaultOverride(pauseDefaultsKey, value: false) {
             try await Self.withDefaultOverride(canvasEnabledKey, value: false) {
-                try await ControlRequestHandler.process(request: .canvasShow(session: "s", path: nil, placement: nil))
+                try await ControlRequestHandler.process(request: .canvasPresent(session: "s", path: nil, placement: nil))
             }
         }
         #expect(show.ok == false)
diff --git a/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommandParams.swift b/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommandParams.swift
index 2243dd2b0..1b7db4eff 100644
--- a/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommandParams.swift
+++ b/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommandParams.swift
@@ -8,6 +8,30 @@ public struct ClawdisCanvasNavigateParams: Codable, Sendable, Equatable {
     }
 }
 
+public struct ClawdisCanvasPlacement: Codable, Sendable, Equatable {
+    public var x: Double?
+    public var y: Double?
+    public var width: Double?
+    public var height: Double?
+
+    public init(x: Double? = nil, y: Double? = nil, width: Double? = nil, height: Double? = nil) {
+        self.x = x
+        self.y = y
+        self.width = width
+        self.height = height
+    }
+}
+
+public struct ClawdisCanvasPresentParams: Codable, Sendable, Equatable {
+    public var url: String?
+    public var placement: ClawdisCanvasPlacement?
+
+    public init(url: String? = nil, placement: ClawdisCanvasPlacement? = nil) {
+        self.url = url
+        self.placement = placement
+    }
+}
+
 public struct ClawdisCanvasEvalParams: Codable, Sendable, Equatable {
     public var javaScript: String
 
diff --git a/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommands.swift b/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommands.swift
index 6e2037910..0f695b5bd 100644
--- a/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommands.swift
+++ b/apps/shared/ClawdisKit/Sources/ClawdisKit/CanvasCommands.swift
@@ -1,7 +1,7 @@
 import Foundation
 
 public enum ClawdisCanvasCommand: String, Codable, Sendable {
-    case show = "canvas.show"
+    case present = "canvas.present"
     case hide = "canvas.hide"
     case navigate = "canvas.navigate"
     case evalJS = "canvas.eval"
diff --git a/docs/ios/spec.md b/docs/ios/spec.md
index de37f36dd..3f00da356 100644
--- a/docs/ios/spec.md
+++ b/docs/ios/spec.md
@@ -119,7 +119,7 @@ Add to `src/gateway/protocol/schema.ts` (and regenerate Swift models):
 
 ### Node command set (canvas)
 These are values for `node.invoke.command`:
-- `canvas.show` / `canvas.hide`
+- `canvas.present` / `canvas.hide`
 - `canvas.navigate` with `{ url }` (loads a URL; use `""` or `"/"` to return to the default canvas/A2UI scaffold)
 - `canvas.eval` with `{ javaScript }`
 - `canvas.snapshot` with `{ maxWidth?, quality?, format? }`
diff --git a/docs/mac/canvas.md b/docs/mac/canvas.md
index f68a45108..5dcd6c967 100644
--- a/docs/mac/canvas.md
+++ b/docs/mac/canvas.md
@@ -96,7 +96,7 @@ Related:
 
 `clawdis-mac` exposes Canvas via the control socket. For agent use, prefer `--json` so you can read the structured `CanvasShowResult` (including `status`).
 
-- `clawdis-mac canvas show [--session <key>] [--target <...>] [--x/--y/--width/--height]`
+- `clawdis-mac canvas present [--session <key>] [--target <...>] [--x/--y/--width/--height]`
   - Local targets map into the session directory via the custom scheme (directory targets resolve `index.html|index.htm`).
   - If `/` has no index file, Canvas shows the built-in A2UI shell and returns `status: "a2uiShell"`.
 - `clawdis-mac canvas hide [--session <key>]`
diff --git a/docs/refactor/canvas-a2ui.md b/docs/refactor/canvas-a2ui.md
index 3682400f9..853935e8b 100644
--- a/docs/refactor/canvas-a2ui.md
+++ b/docs/refactor/canvas-a2ui.md
@@ -20,7 +20,7 @@
   - Avoid double-sending actions when the bundled A2UI shell is present (let the shell forward clicks so it can resolve richer context).
   - Intercept `clawdis://…` navigations inside the Canvas WKWebView and route them through `DeepLinkHandler` (no NSWorkspace bounce).
   - `GatewayConnection` auto-starts the local gateway (and retries briefly) when a request fails in `.local` mode, so Canvas actions don’t silently fail if the gateway isn’t running yet.
-  - Fix a crash that made `clawdis-mac canvas show`/`eval` look “hung”:
+  - Fix a crash that made `clawdis-mac canvas present`/`eval` look “hung”:
     - `VoicePushToTalkHotkey`’s NSEvent monitor could call `@MainActor` code off-main, triggering executor checks / EXC_BAD_ACCESS on macOS 26.2.
     - Now it hops back to the main actor before mutating state.
   - Preserve in-page state when closing Canvas (hide the window instead of closing the `WKWebView`).
diff --git a/src/cli/canvas-cli.ts b/src/cli/canvas-cli.ts
index f9ceb2712..ea08ff9d0 100644
--- a/src/cli/canvas-cli.ts
+++ b/src/cli/canvas-cli.ts
@@ -120,10 +120,11 @@ function pickDefaultNode(nodes: NodeListNode[]): NodeListNode | null {
   const candidates = connected.length > 0 ? connected : withCanvas;
   if (candidates.length === 1) return candidates[0];
 
-  const local = candidates.filter((n) =>
-    n.platform?.toLowerCase().startsWith("mac") &&
-    typeof n.nodeId === "string" &&
-    n.nodeId.startsWith("mac-"),
+  const local = candidates.filter(
+    (n) =>
+      n.platform?.toLowerCase().startsWith("mac") &&
+      typeof n.nodeId === "string" &&
+      n.nodeId.startsWith("mac-"),
   );
   if (local.length === 1) return local[0];