💬 Commit message: Update 2026-02-08 03:05:28, 17 files, 662 lines

📁 Files changed: 17
📝 Lines changed: 662

  • plugin.json
  • .mcp.json
  • README.md
  • analyze.md
  • compare.md
  • end.md
  • extract.md
  • fill.md
  • goto.md
  • restore.md
  • save.md
  • scrape.md
  • screenshot.md
  • start.md
  • package.json
  • browser.ts
  • mcp.ts

.claude-plugin/plugin.json

@@ -0,0 +1,22 @@
+{
+  "name": "browse",
+  "description": "Browser automation and image processing tools for Claude Code using Playwright WebKit",
+  "version": "0.2.0",
+  "author": {
+    "name": "aladac",
+    "url": "https://github.com/aladac"
+  },
+  "repository": "https://github.com/aladac/claude-browse",
+  "license": "MIT",
+  "keywords": [
+    "browser",
+    "automation",
+    "playwright",
+    "webkit",
+    "screenshot",
+    "scraping",
+    "image-processing"
+  ],
+  "mcpServers": "./.mcp.json",
+  "commands": "./commands"
+}

.mcp.json

@@ -1,8 +1,9 @@
 {
   "mcpServers": {
     "claude-browse": {
-      "command": "npx",
-      "args": ["claude-browse-mcp"]
+      "command": "node",
+      "args": ["${CLAUDE_PLUGIN_ROOT}/dist/mcp.js"],
+      "env": {}
     }
   }
 }

README.md

@@ -85,9 +85,45 @@ curl -X POST localhost:3000 -d '{"cmd":"wait","ms":2000}'
 curl -X POST localhost:3000 -d '{"cmd":"close"}'
 ```
 
-## MCP Server (Model Context Protocol)
+## Claude Code Plugin (Recommended)
 
-Use with Claude Code or any MCP-compatible client:
+Install as a Claude Code plugin for the best integration:
+
+```bash
+# Install the plugin
+claude plugin install https://github.com/aladac/claude-browse
+
+# Or load temporarily during development
+claude --plugin-dir /path/to/claude-browse
+```
+
+### Plugin Features
+
+**Slash Commands:**
+
+| Command | Description |
+|---------|-------------|
+| `/browse:start` | Start an interactive browsing session |
+| `/browse:goto <url>` | Navigate to URL and describe findings |
+| `/browse:screenshot` | Take a screenshot of the current page |
+| `/browse:scrape <url>` | Scrape content from a webpage |
+| `/browse:analyze` | Analyze current page content and structure |
+| `/browse:extract [selector]` | Extract structured data from page |
+| `/browse:fill [data]` | Help fill out forms |
+| `/browse:compare [action]` | Compare page states before/after action |
+
+**MCP Resources (@ mentions):**
+
+| Resource | Description |
+|----------|-------------|
+| `@claude-browse:browser://state` | Browser state (URL, title, launched) |
+| `@claude-browse:browser://html` | Page HTML (truncated to 10KB) |
+| `@claude-browse:browser://html/full` | Complete page HTML |
+| `@claude-browse:browser://screenshot` | Page screenshot as base64 PNG |
+
+## MCP Server (Standalone)
+
+Use with any MCP-compatible client:
 
 ```bash
 # Run the MCP server
@@ -106,7 +142,9 @@ Add to Claude Code's MCP config (`~/.claude/settings.json`):
 }
 ```
 
-Available tools: `goto`, `click`, `type`, `query`, `screenshot`, `url`, `html`, `back`, `forward`, `reload`, `wait`, `eval`
+**Available Tools:** `goto`, `click`, `type`, `query`, `screenshot`, `url`, `html`, `back`, `forward`, `reload`, `wait`, `eval`
+
+**Image Processing Tools:** `favicon`, `convert`, `resize`, `crop`, `compress`, `thumbnail`
 
 ## Programmatic Usage
 

commands/analyze.md

@@ -0,0 +1,13 @@
+---
+description: Analyze the current page content and structure
+---
+
+Use the analyze_page MCP prompt to analyze the current browser page.
+
+If the browser is not launched, first navigate to a URL using the goto tool, then analyze the page structure, content, and interactive elements.
+
+Provide:
+1. A summary of the page purpose
+2. Key interactive elements (forms, buttons, links)
+3. Notable structure or patterns
+4. Suggestions for useful actions

commands/compare.md

@@ -0,0 +1,13 @@
+---
+description: Compare page states with screenshots before and after an action
+---
+
+Compare page states:
+
+1. Take an initial screenshot of the current page
+2. Ask what action to perform (click, navigate, submit, etc.)
+3. Perform the requested action
+4. Take another screenshot
+5. Describe the visual and structural differences
+
+What action would you like to perform between screenshots? $ARGUMENTS

commands/end.md

@@ -0,0 +1,12 @@
+---
+description: End the current browsing session and close the browser
+---
+
+End the current browsing session.
+
+Use the `close` tool to close the browser. This will:
+1. Close all browser pages
+2. Clear the browser state
+3. Free up system resources
+
+The browser can be relaunched with any navigation command (goto, start, etc.)

commands/extract.md

@@ -0,0 +1,13 @@
+---
+description: Extract structured data from the current page
+---
+
+Extract structured data from the current browser page.
+
+Selector (optional): $ARGUMENTS
+
+Steps:
+1. If a selector is provided, use the query tool to find matching elements
+2. Analyze the page structure to identify data patterns
+3. Extract and structure the data in a useful format (JSON, table, etc.)
+4. Identify patterns that could help with similar pages

commands/fill.md

@@ -0,0 +1,13 @@
+---
+description: Help fill out a form on the current page
+---
+
+Fill form with data: $ARGUMENTS
+
+Steps:
+1. Use the query tool to find form inputs (input, textarea, select)
+2. Identify required fields and their types
+3. If data is provided, parse it and fill the matching fields using the type tool
+4. Report what was filled and any issues encountered
+
+If no data provided, describe the form fields found and ask what to fill in.

commands/goto.md

@@ -0,0 +1,12 @@
+---
+description: Navigate to a URL and describe what you find
+---
+
+Navigate to: $ARGUMENTS
+
+Steps:
+1. Use the goto tool to navigate to the URL
+2. Take a screenshot to see the page
+3. Describe what you see
+4. Identify the main interactive elements
+5. Suggest what actions might be useful

commands/restore.md

@@ -0,0 +1,13 @@
+---
+description: Restore a previously saved browsing session
+---
+
+Restore session from: $ARGUMENTS
+
+Use the `session_restore` tool to restore a previously saved session:
+- Navigate to the saved URL
+- Restore all cookies
+- Restore localStorage data
+- Restore sessionStorage data
+
+If no path is specified, restore from `session.json` in the current directory.

commands/save.md

@@ -0,0 +1,15 @@
+---
+description: Save the current browsing session state to a file
+---
+
+Save the current session state to: $ARGUMENTS
+
+Use the `session_save` tool to save:
+- Current URL and page title
+- All cookies
+- localStorage data
+- sessionStorage data
+
+If no path is specified, save to `session.json` in the current directory.
+
+This allows you to restore the session later with `/claude-browse:restore`.

commands/scrape.md

@@ -0,0 +1,14 @@
+---
+description: Scrape content from a webpage
+---
+
+Scrape and extract content from: $ARGUMENTS
+
+Steps:
+1. Navigate to the URL using `goto`
+2. Wait for the page to load
+3. Query the page structure to understand the layout
+4. Extract the relevant content using `query` and `eval` tools
+5. Return the structured data
+
+Focus on extracting meaningful content (text, links, data) rather than raw HTML.

commands/screenshot.md

@@ -0,0 +1,9 @@
+---
+description: Take a screenshot of the current page
+---
+
+Take a screenshot of the current browser page and analyze its contents.
+
+If the browser hasn't been started yet, ask for a URL first, navigate there, then take the screenshot.
+
+Use the `screenshot` tool with fullPage=$ARGUMENTS if specified (true/false), otherwise use default viewport.

commands/start.md

@@ -0,0 +1,11 @@
+---
+description: Start an interactive browsing session
+---
+
+Start an interactive browser session. Use the browser tools to:
+1. Navigate to URLs with `goto`
+2. Take screenshots to see page content
+3. Query elements with CSS selectors
+4. Click and type to interact with pages
+
+The browser is headless WebKit (Safari engine). Start by asking what URL to visit.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@aladac/claude-browse",
-  "version": "0.1.2",
+  "version": "0.2.0",
   "description": "Headless browser automation for Claude Code using Playwright WebKit",
   "type": "module",
   "main": "dist/index.js",

src/browser.ts

@@ -44,6 +44,16 @@ export class ClaudeBrowser {
     return this.page;
   }
 
+  /** Get the current page instance (for advanced usage) */
+  getPage(): Page | null {
+    return this.page;
+  }
+
+  /** Get the browser context (for advanced usage like cookies) */
+  getContext(): BrowserContext | null {
+    return this.context;
+  }
+
   async goto(url: string): Promise<{ url: string; title: string }> {
     const page = this.ensurePage();
     await page.goto(url, { waitUntil: 'networkidle' });

src/mcp.ts

@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
+import { McpServer, ResourceTemplate } from '@modelcontextprotocol/sdk/server/mcp.js';
 import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
 import { z } from 'zod';
 import { ClaudeBrowser } from './browser.js';
@@ -8,6 +8,7 @@ import { type CommandLike, type ResultLike, stderrLogger as log } from './logger
 
 const browser = new ClaudeBrowser({ headless: true, width: 1280, height: 800 });
 let launched = false;
+let currentScreenshotBuffer: Buffer | null = null;
 
 async function ensureLaunched(): Promise<void> {
   if (!launched) {
@@ -188,6 +189,124 @@ server.tool(
   })
 );
 
+// Session management
+server.tool(
+  'close',
+  'Close the browser and end the current session',
+  {},
+  withLogging('close', async () => {
+    if (launched) {
+      await browser.close();
+      launched = false;
+    }
+    return textResult(JSON.stringify({ ok: true, message: 'Browser closed' }));
+  })
+);
+
+server.tool(
+  'session_save',
+  'Save the current session state (URL, cookies, localStorage, sessionStorage) to a JSON file',
+  {
+    path: z.string().optional().default('session.json').describe('Path to save session file'),
+  },
+  withLogging('session_save', async ({ path }) => {
+    await ensureLaunched();
+    const { writeFile } = await import('node:fs/promises');
+    const { resolve } = await import('node:path');
+
+    const page = browser.getPage();
+    const context = browser.getContext();
+    if (!page || !context) {
+      return textResult(JSON.stringify({ ok: false, error: 'No active page' }));
+    }
+
+    const url = page.url();
+    const title = await page.title();
+    const cookies = await context.cookies();
+
+    // Get localStorage and sessionStorage (runs in browser context)
+    const storage = await page.evaluate(`({
+      localStorage: Object.fromEntries(
+        Array.from({ length: localStorage.length }, (_, i) => localStorage.key(i))
+          .filter(k => k !== null)
+          .map(k => [k, localStorage.getItem(k) || ''])
+      ),
+      sessionStorage: Object.fromEntries(
+        Array.from({ length: sessionStorage.length }, (_, i) => sessionStorage.key(i))
+          .filter(k => k !== null)
+          .map(k => [k, sessionStorage.getItem(k) || ''])
+      ),
+    })`) as { localStorage: Record<string, string>; sessionStorage: Record<string, string> };
+
+    const sessionData = {
+      url,
+      title,
+      cookies,
+      localStorage: storage.localStorage,
+      sessionStorage: storage.sessionStorage,
+      savedAt: new Date().toISOString(),
+    };
+
+    const resolvedPath = resolve(path);
+    await writeFile(resolvedPath, JSON.stringify(sessionData, null, 2));
+    return textResult(
+      JSON.stringify({ ok: true, path: resolvedPath, url, cookieCount: cookies.length })
+    );
+  })
+);
+
+server.tool(
+  'session_restore',
+  'Restore a previously saved session state from a JSON file',
+  {
+    path: z.string().optional().default('session.json').describe('Path to session file'),
+  },
+  withLogging('session_restore', async ({ path }) => {
+    await ensureLaunched();
+    const { readFile } = await import('node:fs/promises');
+    const { resolve } = await import('node:path');
+
+    const resolvedPath = resolve(path);
+    const data = JSON.parse(await readFile(resolvedPath, 'utf-8'));
+
+    const page = browser.getPage();
+    const context = browser.getContext();
+    if (!page || !context) {
+      return textResult(JSON.stringify({ ok: false, error: 'No active page' }));
+    }
+
+    // Restore cookies first
+    if (data.cookies?.length > 0) {
+      await context.addCookies(data.cookies);
+    }
+
+    // Navigate to saved URL
+    if (data.url) {
+      await page.goto(data.url, { waitUntil: 'networkidle' });
+    }
+
+    // Restore storage (runs in browser context)
+    const local = data.localStorage || {};
+    const session = data.sessionStorage || {};
+    await page.evaluate(
+      `((data) => {
+        for (const [k, v] of Object.entries(data.local)) localStorage.setItem(k, v);
+        for (const [k, v] of Object.entries(data.session)) sessionStorage.setItem(k, v);
+      })(${JSON.stringify({ local, session })})`
+    );
+
+    return textResult(
+      JSON.stringify({
+        ok: true,
+        url: data.url,
+        title: data.title,
+        cookiesRestored: data.cookies?.length || 0,
+        savedAt: data.savedAt,
+      })
+    );
+  })
+);
+
 // Image processing
 server.tool(
   'favicon',
@@ -290,7 +409,327 @@ server.tool(
   })
 );
 
+// ============================================================================
+// MCP Resources - Browser state accessible via @ mentions
+// ============================================================================
+
+// Resource: browser://state - Current browser state (URL, title, launched status)
+server.resource(
+  'Browser State',
+  'browser://state',
+  {
+    description: 'Current browser state including URL, title, and status',
+    mimeType: 'application/json',
+  },
+  async () => {
+    if (!launched) {
+      return {
+        contents: [
+          {
+            uri: 'browser://state',
+            mimeType: 'application/json',
+            text: JSON.stringify({ launched: false, url: null, title: null }),
+          },
+        ],
+      };
+    }
+    const state = await browser.getUrl();
+    return {
+      contents: [
+        {
+          uri: 'browser://state',
+          mimeType: 'application/json',
+          text: JSON.stringify({ launched: true, ...state }),
+        },
+      ],
+    };
+  }
+);
+
+// Resource: browser://html - Current page HTML content
+server.resource(
+  'Page HTML',
+  'browser://html',
+  { description: 'HTML content of the current page (truncated to 10KB)', mimeType: 'text/html' },
+  async () => {
+    if (!launched) {
+      return {
+        contents: [
+          {
+            uri: 'browser://html',
+            mimeType: 'text/plain',
+            text: 'Browser not launched. Use goto tool first.',
+          },
+        ],
+      };
+    }
+    const html = await browser.getHtml(false);
+    return {
+      contents: [
+        {
+          uri: 'browser://html',
+          mimeType: 'text/html',
+          text: html,
+        },
+      ],
+    };
+  }
+);
+
+// Resource: browser://html/full - Full page HTML content
+server.resource(
+  'Full Page HTML',
+  'browser://html/full',
+  { description: 'Complete HTML content of the current page', mimeType: 'text/html' },
+  async () => {
+    if (!launched) {
+      return {
+        contents: [
+          {
+            uri: 'browser://html/full',
+            mimeType: 'text/plain',
+            text: 'Browser not launched. Use goto tool first.',
+          },
+        ],
+      };
+    }
+    const html = await browser.getHtml(true);
+    return {
+      contents: [
+        {
+          uri: 'browser://html/full',
+          mimeType: 'text/html',
+          text: html,
+        },
+      ],
+    };
+  }
+);
+
+// Resource: browser://screenshot - Current page screenshot (base64)
+server.resource(
+  'Page Screenshot',
+  'browser://screenshot',
+  { description: 'Screenshot of the current page as base64 PNG', mimeType: 'image/png' },
+  async () => {
+    if (!launched) {
+      return {
+        contents: [
+          {
+            uri: 'browser://screenshot',
+            mimeType: 'text/plain',
+            text: 'Browser not launched. Use goto tool first.',
+          },
+        ],
+      };
+    }
+    const result = await browser.screenshot(undefined, false);
+    currentScreenshotBuffer = result.buffer || null;
+    return {
+      contents: [
+        {
+          uri: 'browser://screenshot',
+          mimeType: 'image/png',
+          blob: result.buffer?.toString('base64') || '',
+        },
+      ],
+    };
+  }
+);
+
+// ============================================================================
+// MCP Prompts - Common workflows accessible via / commands
+// ============================================================================
+
+// Prompt: Analyze current page
+server.prompt('analyze_page', 'Analyze the current page content and structure', async () => {
+  if (!launched) {
+    return {
+      messages: [
+        {
+          role: 'user',
+          content: {
+            type: 'text',
+            text: 'The browser is not launched yet. Please use the goto tool to navigate to a URL first, then I can analyze the page.',
+          },
+        },
+      ],
+    };
+  }
+  const state = await browser.getUrl();
+  const html = await browser.getHtml(false);
+  return {
+    messages: [
+      {
+        role: 'user',
+        content: {
+          type: 'text',
+          text: `Analyze the following webpage:
+
+URL: ${state.url}
+Title: ${state.title}
+
+HTML Content (truncated):
+\`\`\`html
+${html}
+\`\`\`
+
+Please provide:
+1. A summary of the page purpose and content
+2. Key interactive elements (forms, buttons, links)
+3. Any notable structure or patterns
+4. Suggestions for what actions might be useful`,
+        },
+      },
+    ],
+  };
+});
+
+// Prompt: Extract data from page
+server.prompt(
+  'extract_data',
+  'Extract structured data from the current page',
+  { selector: z.string().optional().describe('CSS selector to focus extraction (optional)') },
+  async ({ selector }) => {
+    if (!launched) {
+      return {
+        messages: [
+          {
+            role: 'user',
+            content: {
+              type: 'text',
+              text: 'The browser is not launched yet. Please use the goto tool to navigate to a URL first.',
+            },
+          },
+        ],
+      };
+    }
+    const state = await browser.getUrl();
+    let elements: { tag: string; text: string; attributes: Record<string, string> }[] = [];
+    if (selector) {
+      elements = await browser.query(selector);
+    }
+    return {
+      messages: [
+        {
+          role: 'user',
+          content: {
+            type: 'text',
+            text: `Extract structured data from this webpage:
+
+URL: ${state.url}
+Title: ${state.title}
+${selector ? `\nSelector: ${selector}\nMatched Elements: ${elements.length}\n\nElements:\n${JSON.stringify(elements, null, 2)}` : ''}
+
+Please:
+1. Use the query tool to find relevant data elements
+2. Extract and structure the data in a useful format (JSON, table, etc.)
+3. Identify patterns that could help with similar pages`,
+          },
+        },
+      ],
+    };
+  }
+);
+
+// Prompt: Navigate and interact
+server.prompt(
+  'navigate_to',
+  'Navigate to a URL and describe what you find',
+  { url: z.string().url().describe('URL to navigate to') },
+  async ({ url }) => {
+    return {
+      messages: [
+        {
+          role: 'user',
+          content: {
+            type: 'text',
+            text: `Please navigate to ${url} and:
+
+1. Use the goto tool to navigate there
+2. Take a screenshot to see the page
+3. Describe what you see
+4. Identify the main interactive elements
+5. Suggest what actions might be useful
+
+Start by navigating to the URL.`,
+          },
+        },
+      ],
+    };
+  }
+);
+
+// Prompt: Fill form
+server.prompt(
+  'fill_form',
+  'Help fill out a form on the current page',
+  { formData: z.string().optional().describe('JSON object with field names and values to fill') },
+  async ({ formData }) => {
+    if (!launched) {
+      return {
+        messages: [
+          {
+            role: 'user',
+            content: {
+              type: 'text',
+              text: 'The browser is not launched yet. Please use the goto tool to navigate to a page with a form first.',
+            },
+          },
+        ],
+      };
+    }
+    const state = await browser.getUrl();
+    return {
+      messages: [
+        {
+          role: 'user',
+          content: {
+            type: 'text',
+            text: `Help fill out a form on this page:
+
+URL: ${state.url}
+Title: ${state.title}
+${formData ? `\nData to fill: ${formData}` : ''}
+
+Please:
+1. Use the query tool to find form inputs (input, textarea, select)
+2. Identify required fields and their types
+3. Use the type tool to fill in each field
+4. Report what was filled and any issues encountered`,
+          },
+        },
+      ],
+    };
+  }
+);
+
+// Prompt: Screenshot comparison
+server.prompt('compare_screenshots', 'Take screenshots and compare changes', async () => {
+  return {
+    messages: [
+      {
+        role: 'user',
+        content: {
+          type: 'text',
+          text: `I'll help you compare page states:
+
+1. Take an initial screenshot
+2. Perform some action (click, navigate, etc.)
+3. Take another screenshot
+4. Describe the differences
+
+What action would you like me to perform between screenshots?`,
+        },
+      },
+    ],
+  };
+});
+
+// ============================================================================
 // Start server
+// ============================================================================
+
 async function main(): Promise<void> {
   const transport = new StdioServerTransport();
   await server.connect(transport);