Chrome Extension · Manifest V3

Let AI Live in Your Browser
Operate Web Pages Like a Human

AI Helper is more than a Chat tool. Built on the ReAct reasoning loop, it can truly control browsers — click, fill forms, drag, extract data — letting AI handle complex web tasks for you.

50+ Built-in Tools
MCP Dynamic Protocol Extension
3-Level Reflection Quality Assurance
Multi-Agent Collaborative Dispatch
ai-helper.sidepanel
Extract all product info from this page and export to Excel
🔧 page_content
Reading page content...
🔧 extract_data
Extracted 48 product records with name, price, rating
🔧 download_file
Excel file generated, downloading...
Why AI Helper

More Than Chat — A Real Browser Agent

Compared to regular Chat tools, AI Helper has these key differentiators

🖱️

Real Browser Control

Not just reading web content — can click, fill forms, drag, scroll, wait for elements, upload files — LLM can operate web pages like a human without your manual intervention.

🛡️

Three-Level Quality System

Pre-filtering → tool-level reflection → subtask reflection → post-reflection, 7-dimension quality scoring ensures accurate and reliable output, not just raw LLM responses.

🤖

Multi-Agent Collaboration

Supports decomposing complex tasks into subtasks, dispatching to different specialized Agents for parallel processing — code review, data analysis, documentation writing each handled expertly.

Smart Cost Control

50+ tool definitions reduced to 5-10 relevant items via lightweight API pre-filtering, dynamic Token budget management, auto context compression — dramatically reduces API call costs.

50+
Built-in Tools
7
Quality Dimensions
5
Built-in Agent Roles
4
Multimodal Input Methods
100+
Configurable Parameters
Technical Architecture

Five-Layer Architecture · Message-Driven

Efficient communication between layers via Chrome Extension API message channels

Side Panel
Chat UI · Markdown Rendering
↓ chrome.runtime.sendMessage
Background Worker
ReAct Reasoning Loop · Tool Dispatch
↓ chrome.tabs.sendMessage · HTTP/WS
Content Script
Page Tool Execution
Local Agent (Node.js)
Files/Commands/MCP/Skill
IndexedDB
Sessions/Prototypes/Token
chrome.storage
Config/Agent Definitions
OpenAI API
LLM + Vision
MCP Protocol
Third-Party Tool Extension
Capability Matrix

50+ Built-in Tools · 11 Categories

Covering all aspects of browser control, with MCP protocol support for dynamic third-party tool extension

📄
Content Extraction 7 tools
  • page_content
  • extract_data
  • query_elements
  • search_in_page
  • scroll_collect
  • Cross-tab Extraction
🖱️
Page Interaction 6 tools
  • click_element
  • hover_element
  • drag_drop
  • scroll_to
  • wait_element
📝
Form Input 4 tools
  • fill_form
  • keyboard_input
  • file_upload
  • select_dropdown
🗂️
Tab Management 8 tools
  • open_tab
  • switch_tab
  • list_tabs
  • reload_tab
  • search_bookmarks
  • Cross-tab Content Extraction
🤖
AI Collaboration 6 tools
  • plan_task
  • dispatch_sub_agent
  • preview_ui
  • clarify_question
  • search_memory
🖥️
Local Agent 12 tools
  • agent_read_file
  • agent_write_file
  • agent_exec
  • agent_search_files
  • agent_search_content
  • agent_memory_store
  • agent_memory_recall
📸
Media Output 5 tools
  • capture_page
  • clipboard
  • qrcode
  • download_file
  • notify
🔌
MCP Dynamic Extension
  • JSON-RPC 2.0
  • Stdio Transport
  • Multi-Server Management
  • Auto Tool Discovery
  • Env Variable Config
Key Highlights

Beyond Tool Calling

From input to output, polished every step of the way

01

Multimodal Input — Images + Files, Ask Anything

Supports image recognition (Vision API), PDF/Word/Excel file extraction and Q&A. Built-in image annotation editor with 6 annotation tools and Undo support. With Agent, files are prioritized to workspace for AI to directly operate on originals.

02

ReAct Reasoning Loop — Think & Act Closed Loop

LLM Think → Decide to Call Tools → Parallel Execution → Result Feedback → Continue Reasoning. Supports tool pre-filtering, Token budget management, smart context compression, streaming responses, multi-level timeout control and session-isolated cancellation.

03

Skill System + MCP Protocol — Infinite Extensibility

Workflow Skills enable deterministic automation flows, Agent Skills provide AI-autonomous knowledge extension. MCP protocol supports dynamic registration of third-party tools, multi-server simultaneous connection, and automatic tool merging.

04

Floating Selection Toolbar — AI Everywhere

Select any web text to pop up a frosted-glass style toolbar, supporting AI search, explanation, translation, summarization, and custom prompt tools. Draggable, resizable result panel seamlessly integrates AI capabilities into your browsing experience.

05

Long-Term Memory — AI That Knows You Better

Automatically stores user preferences, knowledge, decision records, and conversation summaries. AI proactively calls memory tools during conversations for storage and retrieval, supporting tag classification, importance scoring, and smart compression/eviction — making each conversation more tailored to your needs.

Value & Impact

Efficiency Boost × Capability Equality

📈

Business Value

For operations, product, and research professionals — compress minutes of manual web operations into a single sentence command. Smart tool pre-filtering + Token budget management drastically reduces AI call costs, making enterprise-grade AI automation achievable.

Efficiency Boost

Batch form filling, data collection, multi-page information aggregation — tasks that previously required manual page-by-page operations are now automatically completed by AI. Just describe your needs in natural language, and AI will plan steps, call tools, reflect on results, and deliver the finished product.

🌍

Social Value

Non-technical users can control browsers and complete complex tasks via natural language without learning to code, lowering the technical barrier. The selection toolbar enables one-click AI assistance for any web content, promoting accessible information access and achieving technical capability equality.

🔓

Open & Extensible

Based on the MCP open protocol, any developer can write tool extensions for AI Helper. The Skill system supports auto-distilling skills from conversations, forming a positive "use more, get stronger" cycle. Open-source architecture, community co-creation.

Let AI Live in Your Browser

No more switching between chat windows and web pages
AI Helper makes LLMs a true browser agent

Chrome 114+ Manifest V3 OpenAI 兼容 API Side Panel Node.js Agent MCP Protocol