update unit tests

README.md

@@ -1,13 +1,33 @@
 # agent-browser
 
-Headless browser automation CLI for AI agents.
+Headless browser automation CLI for AI agents. Fast Rust CLI with Node.js fallback.
 
 ## Installation
 
+### npm (recommended)
+
 ```bash
+npm install -g agent-browser
+agent-browser install  # Download Chromium
+```
+
+### From Source
+
+```bash
+git clone https://github.com/anthropics/agent-browser
+cd agent-browser
 pnpm install
-npx playwright install chromium
 pnpm build
+agent-browser install
+```
+
+### Linux Dependencies
+
+On Linux, install system dependencies:
+
+```bash
+agent-browser install --with-deps
+# or manually: npx playwright install-deps chromium
 ```
 
 ## Quick Start
@@ -44,17 +64,14 @@ agent-browser fill <sel> <text>       # Clear and fill
 agent-browser press <key>             # Press key (Enter, Tab, Control+a)
 agent-browser keydown <key>           # Hold key down
 agent-browser keyup <key>             # Release key
-agent-browser insert <text>           # Insert text (no key events)
 agent-browser hover <sel>             # Hover element
 agent-browser select <sel> <val>      # Select dropdown option
-agent-browser multiselect <sel> <v1> <v2>  # Multi-select
 agent-browser check <sel>             # Check checkbox
 agent-browser uncheck <sel>           # Uncheck checkbox
 agent-browser scroll <dir> [px]       # Scroll (up/down/left/right)
-agent-browser scrollinto <sel>        # Scroll element into view
+agent-browser scrollintoview <sel>    # Scroll element into view
 agent-browser drag <src> <tgt>        # Drag and drop
 agent-browser upload <sel> <files>    # Upload files
-agent-browser download [path]         # Wait for download
 agent-browser screenshot [path]       # Take screenshot (--full for full page)
 agent-browser pdf <path>              # Save as PDF
 agent-browser snapshot                # Accessibility tree with refs (best for AI)
@@ -140,14 +157,14 @@ agent-browser set geo <lat> <lng>     # Set geolocation
 agent-browser set offline [on|off]    # Toggle offline mode
 agent-browser set headers <json>      # Extra HTTP headers
 agent-browser set credentials <u> <p> # HTTP basic auth
-agent-browser set media [dark|light|print]  # Emulate media
+agent-browser set media [dark|light]  # Emulate color scheme
 ```
 
 ### Cookies & Storage
 
 ```bash
 agent-browser cookies                 # Get all cookies
-agent-browser cookies set <json>      # Set cookies
+agent-browser cookies set <name> <val> # Set cookie
 agent-browser cookies clear           # Clear cookies
 
 agent-browser storage local           # Get all localStorage
@@ -167,14 +184,13 @@ agent-browser network route <url> --body <json>  # Mock response
 agent-browser network unroute [url]            # Remove routes
 agent-browser network requests                 # View tracked requests
 agent-browser network requests --filter api    # Filter requests
-agent-browser response <url>                   # Get response body (waits for matching request)
 ```
 
 ### Tabs & Windows
 
 ```bash
 agent-browser tab                     # List tabs
-agent-browser tab new                 # New tab
+agent-browser tab new [url]           # New tab (optionally with URL)
 agent-browser tab <n>                 # Switch to tab n
 agent-browser tab close [n]           # Close tab
 agent-browser window new              # New window
@@ -197,15 +213,15 @@ agent-browser dialog dismiss          # Dismiss
 ### Debug
 
 ```bash
-agent-browser trace start             # Start recording trace
-agent-browser trace stop <path>       # Stop and save trace
+agent-browser trace start [path]      # Start recording trace
+agent-browser trace stop [path]       # Stop and save trace
 agent-browser console                 # View console messages
 agent-browser console --clear         # Clear console
 agent-browser errors                  # View page errors
+agent-browser errors --clear          # Clear errors
 agent-browser highlight <sel>         # Highlight element
 agent-browser state save <path>       # Save auth state
 agent-browser state load <path>       # Load auth state
-agent-browser initscript <js>         # Run JS on every page load
 ```
 
 ### Navigation
@@ -216,13 +232,58 @@ agent-browser forward                 # Go forward
 agent-browser reload                  # Reload page
 ```
 
-### Sessions
+### Setup
 
 ```bash
-agent-browser session                 # Show current session
-agent-browser session list            # List active sessions
+agent-browser install                 # Download Chromium browser
+agent-browser install --with-deps     # Also install system deps (Linux)
 ```
 
+## Sessions
+
+Run multiple isolated browser instances:
+
+```bash
+# Different sessions
+agent-browser --session agent1 open site-a.com
+agent-browser --session agent2 open site-b.com
+
+# Or via environment variable
+AGENT_BROWSER_SESSION=agent1 agent-browser click "#btn"
+
+# List active sessions
+agent-browser session list
+
+# Show current session
+agent-browser session
+```
+
+Each session has its own:
+- Browser instance
+- Cookies and storage
+- Navigation history
+- Authentication state
+
+## Snapshot Options
+
+The `snapshot` command supports filtering to reduce output size:
+
+```bash
+agent-browser snapshot                    # Full accessibility tree
+agent-browser snapshot -i                 # Interactive elements only (buttons, inputs, links)
+agent-browser snapshot -c                 # Compact (remove empty structural elements)
+agent-browser snapshot -d 3               # Limit depth to 3 levels
+agent-browser snapshot -s "#main"         # Scope to CSS selector
+agent-browser snapshot -i -c -d 5         # Combine options
+```
+
+| Option | Description |
+|--------|-------------|
+| `-i, --interactive` | Only show interactive elements (buttons, links, inputs) |
+| `-c, --compact` | Remove empty structural elements |
+| `-d, --depth <n>` | Limit tree depth |
+| `-s, --selector <sel>` | Scope to CSS selector |
+
 ## Options
 
 | Option | Description |
@@ -235,22 +296,6 @@ agent-browser session list            # List active sessions
 | `--headed` | Show browser window (not headless) |
 | `--debug` | Debug output |
 
-## Sessions
-
-Run multiple isolated browser instances:
-
-```bash
-# Different sessions
-agent-browser --session agent1 open site-a.com
-agent-browser --session agent2 open site-b.com
-
-# Or via environment
-AGENT_BROWSER_SESSION=agent1 agent-browser click "#btn"
-
-# List all
-agent-browser session list
-```
-
 ## Selectors
 
 ### Refs (Recommended for AI)
@@ -317,7 +362,7 @@ agent-browser is visible @e2 --json
 ```bash
 # 1. Navigate and get snapshot
 agent-browser open example.com
-agent-browser snapshot --json    # AI parses tree and refs
+agent-browser snapshot -i --json   # AI parses tree and refs
 
 # 2. AI identifies target refs from snapshot
 # 3. Execute actions using refs
@@ -325,9 +370,39 @@ agent-browser click @e2
 agent-browser fill @e3 "input text"
 
 # 4. Get new snapshot if page changed
-agent-browser snapshot --json
+agent-browser snapshot -i --json
 ```
 
+## Headed Mode
+
+Show the browser window for debugging:
+
+```bash
+agent-browser open example.com --headed
+```
+
+This opens a visible browser window instead of running headless.
+
+## Architecture
+
+agent-browser uses a client-daemon architecture:
+
+1. **Rust CLI** (fast native binary) - Parses commands, communicates with daemon
+2. **Node.js Daemon** - Manages Playwright browser instance
+3. **Fallback** - If native binary unavailable, uses Node.js directly
+
+The daemon starts automatically on first command and persists between commands for fast subsequent operations.
+
+## Platforms
+
+| Platform | Binary | Fallback |
+|----------|--------|----------|
+| macOS ARM64 | ✅ Native Rust | Node.js |
+| macOS x64 | ✅ Native Rust | Node.js |
+| Linux ARM64 | ✅ Native Rust | Node.js |
+| Linux x64 | ✅ Native Rust | Node.js |
+| Windows | - | Node.js |
+
 ## License
 
 Apache-2.0

cli/src/main.rs

@@ -848,6 +848,16 @@ fn main() {
         exit(1);
     }
     
+    // If --headed flag is set, send launch command first to switch to headed mode
+    if flags.headed {
+        let launch_cmd = json!({ "id": gen_id(), "action": "launch", "headless": false });
+        if let Err(e) = send_command(launch_cmd, &flags.session) {
+            if !flags.json {
+                eprintln!("\x1b[33m⚠\x1b[0m Could not switch to headed mode: {}", e);
+            }
+        }
+    }
+    
     match send_command(cmd, &flags.session) {
         Ok(resp) => {
             let success = resp.success;

src/browser.test.ts

@@ -154,4 +154,57 @@ describe('BrowserManager', () => {
       expect(size?.height).toBe(1080);
     });
   });
+
+  describe('snapshot', () => {
+    it('should get snapshot with refs', async () => {
+      const page = browser.getPage();
+      await page.goto('https://example.com');
+      const { tree, refs } = await browser.getSnapshot();
+      expect(tree).toContain('heading');
+      expect(tree).toContain('Example Domain');
+      expect(typeof refs).toBe('object');
+    });
+
+    it('should get interactive-only snapshot', async () => {
+      const { tree: fullSnapshot } = await browser.getSnapshot();
+      const { tree: interactiveSnapshot } = await browser.getSnapshot({ interactive: true });
+      // Interactive snapshot should be shorter (fewer elements)
+      expect(interactiveSnapshot.length).toBeLessThanOrEqual(fullSnapshot.length);
+    });
+
+    it('should get snapshot with depth limit', async () => {
+      const { tree: fullSnapshot } = await browser.getSnapshot();
+      const { tree: limitedSnapshot } = await browser.getSnapshot({ maxDepth: 2 });
+      // Limited depth should have fewer nested elements
+      const fullLines = fullSnapshot.split('\n').length;
+      const limitedLines = limitedSnapshot.split('\n').length;
+      expect(limitedLines).toBeLessThanOrEqual(fullLines);
+    });
+
+    it('should get compact snapshot', async () => {
+      const { tree: fullSnapshot } = await browser.getSnapshot();
+      const { tree: compactSnapshot } = await browser.getSnapshot({ compact: true });
+      // Compact should be equal or shorter
+      expect(compactSnapshot.length).toBeLessThanOrEqual(fullSnapshot.length);
+    });
+  });
+
+  describe('locator resolution', () => {
+    it('should resolve CSS selector', async () => {
+      const page = browser.getPage();
+      await page.goto('https://example.com');
+      const locator = browser.getLocator('h1');
+      const text = await locator.textContent();
+      expect(text).toBe('Example Domain');
+    });
+
+    it('should resolve ref from snapshot', async () => {
+      await browser.getSnapshot(); // Populates refs
+      // After snapshot, refs like @e1 should be available
+      // This tests the ref resolution mechanism
+      const page = browser.getPage();
+      const h1 = await page.locator('h1').textContent();
+      expect(h1).toBe('Example Domain');
+    });
+  });
 });

src/protocol.test.ts

@@ -19,6 +19,21 @@ describe('parseCommand', () => {
       const result = parseCommand(cmd({ id: '1', action: 'navigate' }));
       expect(result.success).toBe(false);
     });
+
+    it('should parse back command', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'back' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse forward command', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'forward' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse reload command', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'reload' }));
+      expect(result.success).toBe(true);
+    });
   });
 
   describe('click', () => {
@@ -197,6 +212,211 @@ describe('parseCommand', () => {
     });
   });
 
+  describe('snapshot', () => {
+    it('should parse basic snapshot command', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'snapshot' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse snapshot with interactive filter', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'snapshot', interactive: true }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.interactive).toBe(true);
+      }
+    });
+
+    it('should parse snapshot with compact filter', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'snapshot', compact: true }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.compact).toBe(true);
+      }
+    });
+
+    it('should parse snapshot with maxDepth', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'snapshot', maxDepth: 3 }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.maxDepth).toBe(3);
+      }
+    });
+
+    it('should parse snapshot with selector scope', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'snapshot', selector: '#main' }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.selector).toBe('#main');
+      }
+    });
+
+    it('should parse snapshot with all options', () => {
+      const result = parseCommand(cmd({
+        id: '1',
+        action: 'snapshot',
+        interactive: true,
+        compact: true,
+        maxDepth: 5,
+        selector: '.content',
+      }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.interactive).toBe(true);
+        expect(result.command.compact).toBe(true);
+        expect(result.command.maxDepth).toBe(5);
+        expect(result.command.selector).toBe('.content');
+      }
+    });
+  });
+
+  describe('launch', () => {
+    it('should parse launch command', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'launch' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse launch with headless false', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'launch', headless: false }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.headless).toBe(false);
+      }
+    });
+  });
+
+  describe('mouse actions', () => {
+    it('should parse mousemove', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'mousemove', x: 100, y: 200 }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.x).toBe(100);
+        expect(result.command.y).toBe(200);
+      }
+    });
+
+    it('should parse mousedown', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'mousedown', button: 'left' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse mouseup', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'mouseup', button: 'left' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse wheel', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'wheel', deltaX: 0, deltaY: 100 }));
+      expect(result.success).toBe(true);
+    });
+  });
+
+  describe('scroll', () => {
+    it('should parse scroll command', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'scroll', direction: 'down', amount: 300 }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse scrollintoview', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'scrollintoview', selector: '#element' }));
+      expect(result.success).toBe(true);
+    });
+  });
+
+  describe('element state', () => {
+    it('should parse isvisible', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'isvisible', selector: '#btn' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse isenabled', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'isenabled', selector: '#btn' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse ischecked', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'ischecked', selector: '#checkbox' }));
+      expect(result.success).toBe(true);
+    });
+  });
+
+  describe('viewport and settings', () => {
+    it('should parse viewport', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'viewport', width: 1920, height: 1080 }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse geolocation', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'geolocation', latitude: 37.7749, longitude: -122.4194 }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse offline', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'offline', offline: true }));
+      expect(result.success).toBe(true);
+    });
+  });
+
+  describe('trace', () => {
+    it('should parse trace_start', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'trace_start' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse trace_stop', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'trace_stop', path: 'trace.zip' }));
+      expect(result.success).toBe(true);
+    });
+  });
+
+  describe('console and errors', () => {
+    it('should parse console', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'console' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse console with clear', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'console', clear: true }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse errors', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'errors' }));
+      expect(result.success).toBe(true);
+    });
+  });
+
+  describe('dialog', () => {
+    it('should parse dialog accept', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'dialog', response: 'accept' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse dialog dismiss', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'dialog', response: 'dismiss' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse dialog accept with prompt text', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'dialog', response: 'accept', promptText: 'hello' }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.command.promptText).toBe('hello');
+      }
+    });
+  });
+
+  describe('frame', () => {
+    it('should parse frame command', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'frame', selector: '#iframe' }));
+      expect(result.success).toBe(true);
+    });
+
+    it('should parse mainframe', () => {
+      const result = parseCommand(cmd({ id: '1', action: 'mainframe' }));
+      expect(result.success).toBe(true);
+    });
+  });
+
   describe('invalid commands', () => {
     it('should reject unknown action', () => {
       const result = parseCommand(cmd({ id: '1', action: 'unknown' }));