BarrHawk
Enables automated end-to-end testing and verification of web applications through natural language, with self-healing selectors and dual-mode execution.
README
BARRHAWK: VERIFY YOUR VIBECODE
The Operating System for Agentic Verification & Orchestration
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v0.5.0 | TRIPARTITE RELEASE
"If your Agent can't test itself, it's just a hallucination."
What's New in v0.5.0
- Unified Stack - Single command
bun run barrhawkstarts everything - Integrated Dashboard - Live monitoring at
http://localhost:7000/dashboard - Experience System - Self-healing selectors that learn across sessions
- Tool Injection - New tools broadcast to running Igors in real-time
- Lightning Strike - Igor auto-escalates to Claude when stuck
- Hub Mode - Multi-Igor test orchestration with
--hubflag
Quick Start
# 1. Clone and install
git clone git@github.com:barrhawk/barrhawk_premium_e2e_mcp.git
cd barrhawk_premium_e2e_mcp
bun install
# 2. Start the stack
bun run barrhawk
# 3. Submit a test
curl -X POST http://localhost:7001/plan \
-H "Content-Type: application/json" \
-d '{"intent":"take a screenshot of the homepage","url":"https://example.com"}'
Stack Modes
bun run barrhawk # Full tripartite stack (Bridge, Doctor, Igor, Frank)
bun run barrhawk --minimal # Just Bridge + Igor (lightweight)
bun run barrhawk --hub # Full stack + Test Orchestration Hub
The Tripartite Architecture
Four specialized servers communicating via WebSocket:
| Component | Port | Role |
|---|---|---|
| Bridge | 7000 | Message bus, circuit breakers, dashboard |
| Doctor | 7001 | Planner, intent parser, experience engine |
| Igor | 7002 | Executor, Lightning Strike dual-mode |
| Frankenstein | 7003 | Browser control, dynamic tool forge |
How It Works
- You send an intent to Doctor:
"test the login flow" - Doctor consults experience, generates a plan, selects tools
- Igor executes the plan step-by-step
- Frankenstein controls the browser, takes screenshots
- Experience records what worked for next time
Lightning Strike (Dual-Mode Igor)
Igor starts in "dumb mode" - fast, regex-based execution. When a step fails 3 times, Igor "strikes" - elevating to full Claude reasoning to solve the problem, then powers back down.
Endpoints
Doctor (Port 7001)
# Submit a plan
POST /plan
{"intent": "click the login button", "url": "https://example.com"}
# Check plan status
GET /plans
GET /plans/:id
Bridge (Port 7000)
# Health check
GET /health
# Live dashboard
GET /dashboard
Igor (Port 7002)
# Status
GET /status
GET /health
# Current tool bag
GET /toolbag
Frankenstein (Port 7003)
# Health and tools
GET /health
GET /tools
Project Structure
/
├── bin/barrhawk.ts # CLI entry point
├── tripartite/ # The Core Stack
│ ├── bridge/ # Message Bus + Dashboard (7000)
│ ├── doctor/ # Planner + Swarm Logic (7001)
│ ├── igor/ # Executor + Lightning (7002)
│ ├── frankenstein/ # Browser + Tool Forge (7003)
│ └── shared/ # Common utilities
│ ├── experience.ts # Learning system
│ ├── tool-registry.ts # 120+ tool definitions
│ └── types.ts # Shared types
├── hub/ # Test Orchestration (--hub mode)
│ ├── index.ts # Hub API (7010)
│ ├── coordinator.ts # Multi-Igor sync (7011)
│ └── igor-db.ts # Database watcher (7012)
├── packages/ # Feature modules
│ ├── golden/ # Visual regression
│ ├── self-heal/ # Selector strategies
│ └── ... # 30+ packages
└── docs/ # Documentation
└── specs/ # Component specifications
MCP Integration
BarrHawk exposes MCP tools for Claude Code, Cursor, and other AI assistants.
Configure Claude Code
./scripts/generate-mcp-configs.sh
Key Tools
// Natural language automation
frank_execute({ task: "Log into github.com", url: "https://github.com" })
// Parallel testing
frank_swarm_execute({ intent: "Test checkout flow", maxIgors: 4 })
// OS-level control (extensions, dialogs)
frank_os_mouse({ action: "click", x: 100, y: 200 })
frank_os_keyboard({ combo: "ctrl+shift+i" })
// Screenshots
frank_screenshot({ fullPage: true })
Experience System
BarrHawk learns from every test run:
- Selectors: Which CSS selectors work for which elements
- Timings: How long actions typically take per site
- Errors: Common error patterns and their fixes
- Sites: Known site patterns with pre-mapped selectors
Data stored in experiencegained/experience.json (configurable via EXPERIENCE_DIR).
Development
# Run tests
bun test
# Type check
bun run typecheck
# View logs
tail -f /tmp/tripartite-*.log
License
MIT
"Trust, but Verify." — BarrHawk
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