fix: add dblclick alias and simplify click-like flags

README.md

@@ -15,7 +15,7 @@ The project is in early development and considered experimental. Pull requests a
 ## Features
 - Platforms: iOS (simulator + physical device core automation) and Android (emulator + device).
 - Core commands: `open`, `back`, `home`, `app-switcher`, `press`, `long-press`, `focus`, `type`, `fill`, `scroll`, `scrollintoview`, `wait`, `alert`, `screenshot`, `close`, `reinstall`.
-- Inspection commands: `snapshot` (accessibility tree), `appstate`, `apps`, `devices`.
+- Inspection commands: `snapshot` (accessibility tree), `diff snapshot` (snapshot diffs), `appstate`, `apps`, `devices`.
 - Device tooling: `adb` (Android), `simctl`/`devicectl` (iOS via Xcode).
 - Minimal dependencies; TypeScript executed directly on Node 22+ (no build step).
 
@@ -34,13 +34,14 @@ npx agent-device open SampleApp
 ## Quick Start
 
 Use refs for agent-driven exploration and normal automation flows.
-Use `press` as the canonical tap command; `click` is an equivalent alias.
+Use `press` as the canonical tap command; `click` is an equivalent alias; `dblclick` is an alias for `click --double-tap`.
 
 ```bash
 agent-device open Contacts --platform ios # creates session on iOS Simulator
 agent-device snapshot
 agent-device press @e5
 agent-device fill @e6 "John"
+agent-device diff snapshot
 agent-device fill @e7 "Doe"
 agent-device press @e3
 agent-device close
@@ -105,6 +106,7 @@ agent-device open SampleApp
 agent-device snapshot
 agent-device press @e7
 agent-device fill @e8 "hello"
+agent-device diff snapshot
 agent-device close SampleApp
 ```
 
@@ -122,6 +124,7 @@ Coordinates:
 - X increases to the right, Y increases downward.
 - `press` is the canonical tap command.
 - `click` is an equivalent alias and accepts the same targets (`x y`, `@ref`, selector) and flags.
+- `dblclick` is shorthand for `click --double-tap`.
 
 Gesture series examples:
 
@@ -135,8 +138,8 @@ agent-device swipe 540 1500 540 500 120 --count 8 --pause-ms 30 --pattern ping-p
 ## Command Index
 - `boot`, `open`, `close`, `reinstall`, `home`, `back`, `app-switcher`
 - `batch`
-- `snapshot`, `find`, `get`
-- `press` (alias: `click`), `focus`, `type`, `fill`, `long-press`, `swipe`, `scroll`, `scrollintoview`, `pinch`, `is`
+- `snapshot`, `diff`, `find`, `get`
+- `press` (aliases: `click`, `dblclick`), `focus`, `type`, `fill`, `long-press`, `swipe`, `scroll`, `scrollintoview`, `pinch`, `is`
 - `alert`, `wait`, `screenshot`
 - `trace start`, `trace stop`
 - `settings wifi|airplane|location on|off`
@@ -149,6 +152,7 @@ Notes:
 - iOS snapshots use XCTest on simulators and physical devices.
 - Scope snapshots with `-s "<label>"` or `-s @ref`.
 - If XCTest returns 0 nodes (e.g., foreground app changed), agent-device fails explicitly.
+- `diff snapshot` compares the current snapshot against the previous snapshot in the same session and then updates the baseline.
 
 Flags:
 - `--version, -V` print version and exit
@@ -162,7 +166,7 @@ Flags:
 - `--interval-ms <ms>` delay between `press` iterations
 - `--hold-ms <ms>` hold duration per `press` iteration
 - `--jitter-px <n>` deterministic coordinate jitter for `press`
-- `--double-tap` use a double-tap gesture per `press`/`click` iteration (cannot be combined with `--hold-ms` or `--jitter-px`)
+- `--double-tap` use a double-tap gesture per `press`/`click`/`dblclick` iteration (cannot be combined with `--hold-ms` or `--jitter-px`)
 - `--pause-ms <ms>` delay between `swipe` iterations
 - `--pattern one-way|ping-pong` repeat pattern for `swipe`
 - `--debug` (alias: `--verbose`) for debug diagnostics + daemon/runner logs
@@ -235,7 +239,7 @@ Replay update:
 - `replay <path>` runs deterministic replay from `.ad` scripts.
 - `replay -u <path>` attempts selector updates on failures and atomically rewrites the same file.
 - Refs are the default/core mechanism for interactive agent flows.
-- Update targets: `click`, `fill`, `get`, `is`, `wait`.
+- Update targets: `click`, `dblclick`, `fill`, `get`, `is`, `wait`.
 - Selector matching is a replay-update internal: replay parses `.ad` lines into actions, tries them, snapshots on failure, resolves a better selector, then rewrites that failing line.
 
 Update examples:

skills/agent-device/SKILL.md

@@ -29,7 +29,7 @@ npx -y agent-device
 
 1. Open app or deep link: `open [app|url] [url]` (`open` handles target selection + boot/activation in the normal flow)
 2. Snapshot: `snapshot` to get refs from accessibility tree
-3. Interact using refs (`press @ref`, `fill @ref "text"`; `click` is an alias of `press`)
+3. Interact using refs (`press @ref`, `fill @ref "text"`; `click` is an alias of `press`, `dblclick` is an alias of `click --double-tap`)
 4. Re-snapshot after navigation/UI changes
 5. Close session when done
 
@@ -115,7 +115,8 @@ agent-device appstate
 ### Interactions (use @refs from snapshot)
 
 ```bash
-agent-device press @e1                # Canonical tap command (`click` is an alias)
+agent-device press @e1                # Canonical tap command (`click` is an alias, `dblclick` is a double-tap alias)
+agent-device dblclick @e1             # Equivalent to: click @e1 --double-tap
 agent-device focus @e2
 agent-device fill @e2 "text"           # Clear then type (Android: verifies value and retries once on mismatch)
 agent-device type "text"               # Type into focused field without clearing
@@ -230,9 +231,9 @@ agent-device apps --platform android --user-installed
 
 ## Best practices
 
-- `press` is the canonical tap command; `click` is an alias with the same behavior.
-- `press` (and `click`) accepts `x y`, `@ref`, and selector targets.
-- `press`/`click` support gesture series controls: `--count`, `--interval-ms`, `--hold-ms`, `--jitter-px`, `--double-tap`.
+- `press` is the canonical tap command; `click` is an alias with the same behavior; `dblclick` is shorthand for `click --double-tap`.
+- `press`, `click`, and `dblclick` accept `x y`, `@ref`, and selector targets.
+- `press`/`click`/`dblclick` support gesture series controls: `--count`, `--interval-ms`, `--hold-ms`, `--jitter-px`, `--double-tap`.
 - `--double-tap` cannot be combined with `--hold-ms` or `--jitter-px`.
 - `swipe` supports coordinate + timing controls and repeat patterns: `swipe x1 y1 x2 y2 [durationMs] --count --pause-ms --pattern`.
 - `swipe` timing is platform-safe: Android uses requested duration; iOS uses normalized safe timing to avoid long-press side effects.

src/cli.ts

@@ -1,6 +1,6 @@
 import { parseArgs, toDaemonFlags, usage, usageForCommand } from './utils/args.ts';
 import { asAppError, AppError, normalizeError } from './utils/errors.ts';
-import { formatSnapshotText, printHumanError, printJson } from './utils/output.ts';
+import { formatSnapshotDiffText, formatSnapshotText, printHumanError, printJson } from './utils/output.ts';
 import { readVersion } from './utils/version.ts';
 import { pathToFileURL } from 'node:url';
 import { sendToDaemon } from './daemon-client.ts';
@@ -189,6 +189,11 @@
         if (logTailStopper) logTailStopper();
         return;
       }
+      if (command === 'diff' && positionals[0]?.toLowerCase() === 'snapshot') {
+        process.stdout.write(formatSnapshotDiffText((response.data ?? {}) as Record<string, unknown>));
+        if (logTailStopper) logTailStopper();
+        return;
+      }
       if (command === 'get') {
         const sub = positionals[0];
         if (sub === 'text') {
@@ -235,7 +240,7 @@
         if (logTailStopper) logTailStopper();
         return;
       }
-      if (command === 'click' || command === 'press') {
+      if (command === 'click' || command === 'press' || command === 'dblclick') {
         const ref = (response.data as any)?.ref ?? '';
         const x = (response.data as any)?.x;
         const y = (response.data as any)?.y;

src/daemon.ts

@@ -203,8 +203,15 @@ function finalizeDaemonResponse(response: DaemonResponse): DaemonResponse {
 }
 
 function normalizeAliasedCommands(req: DaemonRequest): DaemonRequest {
-  if (req.command !== 'click') return req;
-  return { ...req, command: 'press' };
+  if (req.command === 'dblclick') {
+    return {
+      ...req,
+      command: 'press',
+      flags: { ...(req.flags ?? {}), doubleTap: true },
+    };
+  }
+  if (req.command === 'click') return { ...req, command: 'press' };
+  return req;
 }
 
 function writeInfo(port: number): void {

src/daemon/handlers/__tests__/session.test.ts

@@ -1083,6 +1083,38 @@ test('replay parses press series flags and passes them to invoke', async () => {
   assert.equal(invoked[0]?.flags?.doubleTap, true);
 });
 
+test('replay parses dblclick alias and passes click-series flags to invoke', async () => {
+  const sessionStore = makeSessionStore();
+  const replayRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'agent-device-replay-dblclick-series-'));
+  const replayPath = path.join(replayRoot, 'dblclick-series.ad');
+  fs.writeFileSync(replayPath, 'dblclick @e5 --count 2\n');
+
+  const invoked: DaemonRequest[] = [];
+  const response = await handleSessionCommands({
+    req: {
+      token: 't',
+      session: 'default',
+      command: 'replay',
+      positionals: [replayPath],
+      flags: {},
+    },
+    sessionName: 'default',
+    logPath: path.join(os.tmpdir(), 'daemon.log'),
+    sessionStore,
+    invoke: async (req) => {
+      invoked.push(req);
+      return { ok: true, data: {} };
+    },
+  });
+
+  assert.ok(response);
+  assert.equal(response?.ok, true);
+  assert.equal(invoked.length, 1);
+  assert.equal(invoked[0]?.command, 'dblclick');
+  assert.deepEqual(invoked[0]?.positionals, ['@e5']);
+  assert.equal(invoked[0]?.flags?.count, 2);
+});
+
 test('replay inherits parent device selectors for each invoked step', async () => {
   const sessionStore = makeSessionStore();
   const replayRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'agent-device-replay-parent-selectors-'));

src/daemon/script-utils.ts

@@ -14,8 +14,8 @@ const SWIPE_NUMERIC_FLAG_MAP = new Map<string, 'count' | 'pauseMs'>([
   ['--pause-ms', 'pauseMs'],
 ]);
 
-export function isClickLikeCommand(command: string): command is 'click' | 'press' {
-  return command === 'click' || command === 'press';
+export function isClickLikeCommand(command: string): command is 'click' | 'press' | 'dblclick' {
+  return command === 'click' || command === 'press' || command === 'dblclick';
 }
 
 export function formatScriptArg(value: string): string {

src/utils/__tests__/args.test.ts

@@ -110,6 +110,13 @@ test('parseArgs recognizes click series flags', () => {
   assert.equal(parsed.flags.intervalMs, 10);
 });
 
+test('parseArgs treats dblclick alias as parser-level command without implicit defaults', () => {
+  const parsed = parseArgs(['dblclick', '@e5'], { strictFlags: true });
+  assert.equal(parsed.command, 'dblclick');
+  assert.deepEqual(parsed.positionals, ['@e5']);
+  assert.equal(parsed.flags.doubleTap, undefined);
+});
+
 test('parseArgs recognizes double-tap flag for repeated press', () => {
   const parsed = parseArgs(['press', '201', '545', '--count', '5', '--double-tap'], { strictFlags: true });
   assert.equal(parsed.command, 'press');
@@ -149,6 +156,7 @@ test('parseArgs rejects invalid swipe pattern', () => {
 
 test('usage includes --relaunch flag', () => {
   assert.match(usage(), /--relaunch/);
+  assert.match(usage(), /dblclick <x y\|@ref\|selector>/);
   assert.match(usage(), /--save-script \[path\]/);
   assert.match(usage(), /pinch <scale> \[x\] \[y\]/);
   assert.doesNotMatch(usage(), /--metadata/);
@@ -202,6 +210,14 @@ test('snapshot command accepts command-specific flags', () => {
   assert.equal(parsed.flags.snapshotScope, 'Login');
 });
 
+test('diff snapshot command accepts snapshot flags', () => {
+  const parsed = parseArgs(['diff', 'snapshot', '--depth', '2', '--raw'], { strictFlags: true });
+  assert.equal(parsed.command, 'diff');
+  assert.deepEqual(parsed.positionals, ['snapshot']);
+  assert.equal(parsed.flags.snapshotDepth, 2);
+  assert.equal(parsed.flags.snapshotRaw, true);
+});
+
 test('unknown short flags are rejected', () => {
   assert.throws(
     () => parseArgs(['press', '10', '20', '-x'], { strictFlags: true }),
@@ -266,6 +282,7 @@ test('invalid range errors are deterministic', () => {
 test('usage includes swipe and press series options', () => {
   const help = usage();
   assert.match(help, /swipe <x1> <y1> <x2> <y2>/);
+  assert.match(help, /diff snapshot/);
   assert.match(help, /--pattern one-way\|ping-pong/);
   assert.match(help, /--interval-ms/);
   assert.match(help, /settings <wifi\|airplane\|location\|faceid>/);

src/utils/command-schema.ts

@@ -71,12 +71,23 @@ const SNAPSHOT_FLAGS = [
   'snapshotRaw',
 ] as const satisfies readonly FlagKey[];
 
+const DIFF_SNAPSHOT_FLAGS = [...SNAPSHOT_FLAGS] as const satisfies readonly FlagKey[];
+
 const SELECTOR_SNAPSHOT_FLAGS = [
   'snapshotDepth',
   'snapshotScope',
   'snapshotRaw',
 ] as const satisfies readonly FlagKey[];
 
+const CLICK_LIKE_FLAGS = [
+  'count',
+  'intervalMs',
+  'holdMs',
+  'jitterPx',
+  'doubleTap',
+  ...SELECTOR_SNAPSHOT_FLAGS,
+] as const satisfies readonly FlagKey[];
+
 const FIND_SNAPSHOT_FLAGS = ['snapshotDepth', 'snapshotRaw'] as const satisfies readonly FlagKey[];
 
 export const FLAG_DEFINITIONS: readonly FlagDefinition[] = [
@@ -370,6 +381,12 @@ export const COMMAND_SCHEMAS: Record<string, CommandSchema> = {
     positionalArgs: [],
     allowedFlags: [...SNAPSHOT_FLAGS],
   },
+  diff: {
+    usageOverride: 'diff snapshot',
+    description: 'Compare current snapshot against previous session snapshot',
+    positionalArgs: ['kind'],
+    allowedFlags: [...DIFF_SNAPSHOT_FLAGS],
+  },
   devices: {
     description: 'List available devices',
     positionalArgs: [],
@@ -421,7 +438,15 @@ export const COMMAND_SCHEMAS: Record<string, CommandSchema> = {
     description: 'Tap/click by coordinates, snapshot ref, or selector',
     positionalArgs: ['target'],
     allowsExtraPositionals: true,
-    allowedFlags: ['count', 'intervalMs', 'holdMs', 'jitterPx', 'doubleTap', ...SELECTOR_SNAPSHOT_FLAGS],
+    allowedFlags: [...CLICK_LIKE_FLAGS],
+  },
+  dblclick: {
+    usageOverride: 'dblclick <x y|@ref|selector>',
+    description: 'Alias for click --double-tap',
+    positionalArgs: ['target'],
+    allowsExtraPositionals: true,
+    allowedFlags: [...CLICK_LIKE_FLAGS],
+    skipCapabilityCheck: true,
   },
   get: {
     usageOverride: 'get text|attrs <@ref|selector>',
@@ -447,7 +472,7 @@ export const COMMAND_SCHEMAS: Record<string, CommandSchema> = {
     description: 'Tap/press by coordinates, snapshot ref, or selector (supports repeated series)',
     positionalArgs: ['targetOrX', 'y?'],
     allowsExtraPositionals: true,
-    allowedFlags: ['count', 'intervalMs', 'holdMs', 'jitterPx', 'doubleTap', ...SELECTOR_SNAPSHOT_FLAGS],
+    allowedFlags: [...CLICK_LIKE_FLAGS],
   },
   'long-press': {
     description: 'Long press (where supported)',