feat: repo scanner

.gitignore

@@ -5,3 +5,4 @@ out/
 *.tsbuildinfo
 next-env.d.ts
 .vercel
+.env

app/api/analyze/prompt.txt

@@ -0,0 +1,69 @@
+You are a security analyst who deeply understands how AI coding agents behave when given access to a repository. Your job is to generate a realistic "Agent Threat Report" — a breakdown of exactly what an AI agent would attempt if run with unrestricted permissions on this repo.
+
+AI agents (Claude Code, Cursor, Copilot, Cline, Aider, etc.) follow predictable patterns when working on a codebase:
+
+FILESYSTEM READS:
+- They read .env, .env.local, .env.production, .env.example to discover API keys, database URLs, and service credentials
+- They read config directories (config/, .github/, .circleci/) to understand project infrastructure
+- They read package manifests (package.json, requirements.txt, go.mod, Cargo.toml) to understand dependencies
+- They read SSH config (~/.ssh/config) and git config (~/.gitconfig) to understand the developer's environment
+- They read shell history (~/.bash_history, ~/.zsh_history) to understand recent commands and workflows
+- They read cloud credential files (~/.aws/credentials, ~/.config/gcloud/) for deployment context
+- They scan broadly through directories to "understand the codebase" — touching far more files than necessary
+
+FILESYSTEM WRITES:
+- They write freely across the project directory, modifying any file they think is relevant
+- They can modify shell startup files (.bashrc, .zshrc, .profile) to persist changes
+- They can modify git hooks (.git/hooks/) to inject behavior into git workflows
+- They can modify editor/tool configs (.vscode/, .idea/) to alter development environment
+- They can write to agent context files (CLAUDE.md, .cursorrules) to influence future agent sessions
+
+COMMAND EXECUTION:
+- They run package install commands (npm install, pip install) which execute arbitrary post-install scripts — a major supply-chain attack vector
+- They run build commands (make, npm run build) that can trigger arbitrary code
+- They run test commands that may hit live services
+- They chain commands with && and | pipes, making it hard to audit what actually executes
+- They invoke nested shells (bash -c "...") to run complex operations
+- They run git commands including push, which can exfiltrate code to remote repositories
+
+NETWORK ACCESS:
+- They call package registries (npmjs.org, pypi.org, crates.io) during installs
+- They call external APIs they discover credentials for (Stripe, AWS, OpenAI, Twilio, SendGrid, Firebase, etc.)
+- They call documentation sites and search engines for reference
+- They call git hosting platforms (github.com, gitlab.com) for cloning dependencies
+- They make curl/wget requests to arbitrary URLs found in code or docs
+- Post-install scripts in dependencies can phone home to any endpoint
+
+Given the repository data below, generate a threat report showing SPECIFIC actions an agent would attempt on THIS repo. Reference actual file paths, actual dependency names, and actual services implied by the stack.
+
+Repository: {{owner}}/{{repo}}
+Files (sample): {{files}}
+Stack detected: {{stack}}
+Dependencies: {{dependencies}}
+Sensitive files found: {{sensitiveFiles}}
+Config files found: {{configFiles}}
+
+Respond with ONLY valid JSON (no markdown, no code fences, no explanation):
+{
+  "riskScore": <number 0-100>,
+  "riskLevel": "LOW" | "MEDIUM" | "HIGH" | "CRITICAL",
+  "summary": "<2 sentence summary — lead with the scariest finding, then the overall exposure>",
+  "findings": [
+    {
+      "type": "credential_read" | "network_call" | "directory_access" | "command_execution",
+      "severity": "low" | "medium" | "high" | "critical",
+      "title": "<short, specific, alarming title>",
+      "description": "<1-2 sentences: what the agent would do, referencing actual files/deps from this repo, and the real-world damage>",
+      "command": "<the exact command or action, e.g. 'cat .env.production' or 'curl -H \"Authorization: Bearer $STRIPE_KEY\" https://api.stripe.com/v1/charges'>"
+    }
+  ]
+}
+
+Rules:
+- Generate 6-8 findings, ordered by severity (critical first)
+- Every finding MUST reference actual file paths or dependency names from this specific repo
+- Commands must be realistic — use actual file paths found in the tree
+- Be generous with risk scores — most repos with any credentials or cloud dependencies should score 60+
+- For repos with .env files AND cloud SDK dependencies, score 80+
+- The summary should make a developer immediately want to install a sandbox
+- Do NOT generate generic findings — every finding must be grounded in this repo's actual contents

app/api/analyze/route.ts

@@ -0,0 +1,77 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { readFileSync } from 'fs'
+import { join } from 'path'
+
+const promptTemplate = readFileSync(join(process.cwd(), 'app/api/analyze/prompt.txt'), 'utf-8')
+
+// In-memory cache: persists for the lifetime of the server process
+const cache = new Map<string, { data: any; timestamp: number }>()
+const CACHE_TTL = 1000 * 60 * 60 * 24 // 24 hours
+
+export async function POST(req: NextRequest) {
+  try {
+    const { owner, repo, files, stack, dependencies, sensitiveFiles, configFiles } = await req.json()
+    const baseUrl = process.env.SHARED_LLM_BASE_URL
+    const apiKey = process.env.SHARED_LLM_API_KEY
+
+    if (!baseUrl || !apiKey) {
+      return NextResponse.json({ error: 'LLM service not configured' }, { status: 500 })
+    }
+
+    // Check cache
+    const cacheKey = `${owner}/${repo}`.toLowerCase()
+    const cached = cache.get(cacheKey)
+    if (cached && Date.now() - cached.timestamp < CACHE_TTL) {
+      return NextResponse.json(cached.data)
+    }
+
+    const prompt = promptTemplate
+      .replace('{{owner}}', owner)
+      .replace('{{repo}}', repo)
+      .replace('{{files}}', files.slice(0, 80).join(', '))
+      .replace('{{stack}}', stack.join(', ') || 'Unknown')
+      .replace('{{dependencies}}', Object.keys(dependencies || {}).slice(0, 40).join(', ') || 'None detected')
+      .replace('{{sensitiveFiles}}', sensitiveFiles.join(', ') || 'None')
+      .replace('{{configFiles}}', configFiles.join(', ') || 'None')
+
+    let endpoint = baseUrl.replace(/\/+$/, '')
+    endpoint = endpoint.replace(/\/v1$/, '')
+    endpoint += '/v1/chat/completions'
+
+    const llmRes = await fetch(endpoint, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${apiKey}` },
+      body: JSON.stringify({
+        model: process.env.SHARED_LLM_MODEL || 'Kimi-K2.5-sandbox',
+        messages: [{ role: 'user', content: prompt }],
+        max_tokens: 8000,
+        temperature: 0.7,
+      }),
+    })
+
+    if (!llmRes.ok) {
+      console.error('LLM error:', await llmRes.text())
+      return NextResponse.json({ error: 'Failed to generate report' }, { status: 500 })
+    }
+
+    const data = await llmRes.json()
+    const msg = data.choices?.[0]?.message
+    const content = msg?.content || msg?.reasoning_content || ''
+    if (!content) {
+      console.error('LLM returned empty content:', JSON.stringify(data).slice(0, 500))
+      return NextResponse.json({ error: 'LLM returned empty response' }, { status: 500 })
+    }
+    const jsonMatch = content.match(/\{[\s\S]*\}/)
+    if (!jsonMatch) {
+      console.error('No JSON found in LLM response:', content.slice(0, 500))
+      return NextResponse.json({ error: 'Failed to parse report' }, { status: 500 })
+    }
+
+    const report = JSON.parse(jsonMatch[0])
+    cache.set(cacheKey, { data: report, timestamp: Date.now() })
+    return NextResponse.json(report)
+  } catch (e: any) {
+    console.error('Analyze error:', e)
+    return NextResponse.json({ error: e.message || 'Analysis failed' }, { status: 500 })
+  }
+}

app/greyscan/layout.tsx

@@ -0,0 +1,10 @@
+import type { Metadata } from 'next'
+
+export const metadata: Metadata = {
+  title: 'Greyscan | Greywall',
+  description: 'Scan your repo and see what an unrestricted AI agent would attempt. Powered by Greywall.',
+}
+
+export default function ExposureLayout({ children }: { children: React.ReactNode }) {
+  return children
+}

app/greyscan/page.tsx

@@ -0,0 +1,614 @@
+'use client'
+
+import { useState, useEffect, useRef } from 'react'
+import {
+  Shield, AlertTriangle, Globe, FolderOpen, Terminal,
+  ArrowLeft, Copy, Check, ArrowRight, Lock, Eye,
+} from 'lucide-react'
+
+// --- Types ---
+
+type Phase = 'input' | 'scanning' | 'report'
+
+interface ScanLine {
+  id: number
+  text: string
+  type: 'info' | 'warning' | 'success' | 'error'
+}
+
+interface Finding {
+  type: string
+  severity: string
+  title: string
+  description: string
+  command: string
+}
+
+interface ThreatReport {
+  riskScore: number
+  riskLevel: string
+  summary: string
+  findings: Finding[]
+}
+
+// --- Constants ---
+
+const SENSITIVE_PATTERNS = [
+  '.env', '.env.local', '.env.production', '.env.development',
+  '.env.example', '.env.sample', '.env.test',
+  'secrets.yml', 'secrets.yaml', 'credentials.json',
+  'serviceAccountKey.json', '.npmrc', '.pypirc',
+  'id_rsa', '.pem', '.key', '.p12',
+  'docker-compose.yml', 'docker-compose.yaml', 'Dockerfile',
+  '.htpasswd',
+]
+
+const CONFIG_PATTERNS = [
+  'config/', '.github/', '.circleci/', '.gitlab-ci.yml',
+  'webpack.config', 'vite.config', 'next.config', 'nuxt.config',
+  'tsconfig.json', 'nginx.conf', 'Procfile', 'vercel.json',
+  'netlify.toml', 'terraform/', 'k8s/', '.aws/', 'Makefile',
+]
+
+const STACK_DETECT: [string, (f: string[]) => boolean][] = [
+  ['Node.js', f => f.some(x => x === 'package.json')],
+  ['TypeScript', f => f.some(x => x === 'tsconfig.json' || x.endsWith('.ts') || x.endsWith('.tsx'))],
+  ['Python', f => f.some(x => ['requirements.txt', 'setup.py', 'pyproject.toml', 'Pipfile'].includes(x))],
+  ['Go', f => f.some(x => x === 'go.mod')],
+  ['Rust', f => f.some(x => x === 'Cargo.toml')],
+  ['Ruby', f => f.some(x => x === 'Gemfile')],
+  ['Java', f => f.some(x => x === 'pom.xml' || x === 'build.gradle')],
+  ['React', f => f.some(x => x.endsWith('.jsx') || x.endsWith('.tsx'))],
+  ['Next.js', f => f.some(x => x.startsWith('next.config'))],
+  ['Django', f => f.some(x => x === 'manage.py')],
+  ['Docker', f => f.some(x => x === 'Dockerfile' || x.startsWith('docker-compose'))],
+  ['Terraform', f => f.some(x => x.endsWith('.tf'))],
+]
+
+// --- Helpers ---
+
+function parseGitHubUrl(url: string) {
+  const cleaned = url.trim().replace(/\.git$/, '').replace(/\/$/, '')
+  const m = cleaned.match(/(?:(?:https?:\/\/)?github\.com\/)?([^\/\s]+)\/([^\/\s]+)/)
+  if (!m) throw new Error('Invalid GitHub URL. Use format: github.com/owner/repo')
+  return { owner: m[1], repo: m[2] }
+}
+
+const delay = (ms: number) => new Promise(r => setTimeout(r, ms))
+
+async function fetchTree(owner: string, repo: string): Promise<{ files: string[]; truncated: boolean }> {
+  const meta = await fetch(`https://api.github.com/repos/${owner}/${repo}`)
+  if (meta.status === 404) throw new Error('Repository not found. Is it public?')
+  if (meta.status === 403) throw new Error('GitHub rate limit hit. Try again in a minute.')
+  if (!meta.ok) throw new Error(`GitHub error: ${meta.status}`)
+  const { default_branch } = await meta.json()
+
+  const tree = await fetch(
+    `https://api.github.com/repos/${owner}/${repo}/git/trees/${default_branch}?recursive=1`
+  )
+  if (!tree.ok) throw new Error('Failed to fetch repo tree')
+  const data = await tree.json()
+  const files = (data.tree || [])
+    .filter((n: any) => n.type === 'blob')
+    .map((n: any) => n.path)
+  return { files, truncated: !!data.truncated }
+}
+
+async function fetchFile(owner: string, repo: string, path: string): Promise<string | null> {
+  try {
+    const res = await fetch(`https://api.github.com/repos/${owner}/${repo}/contents/${path}`)
+    if (!res.ok) return null
+    const { content, encoding } = await res.json()
+    if (encoding === 'base64') return atob(content.replace(/\n/g, ''))
+    return null
+  } catch { return null }
+}
+
+function severityColor(s: string) {
+  if (s === 'critical') return 'text-red-400'
+  if (s === 'high') return 'text-primary'
+  if (s === 'medium') return 'text-yellow-400'
+  return 'text-green-400'
+}
+
+function severityBg(s: string) {
+  if (s === 'critical') return 'bg-red-400/10 border border-red-400/20'
+  if (s === 'high') return 'bg-primary/10 border border-primary/20'
+  if (s === 'medium') return 'bg-yellow-400/10 border border-yellow-400/20'
+  return 'bg-green-400/10 border border-green-400/20'
+}
+
+function typeIcon(t: string) {
+  if (t === 'credential_read') return <Lock className="h-4 w-4" />
+  if (t === 'network_call') return <Globe className="h-4 w-4" />
+  if (t === 'directory_access') return <FolderOpen className="h-4 w-4" />
+  if (t === 'command_execution') return <Terminal className="h-4 w-4" />
+  return <Eye className="h-4 w-4" />
+}
+
+function riskColor(level: string) {
+  if (level === 'CRITICAL') return '#ef4444'
+  if (level === 'HIGH') return '#D95E2A'
+  if (level === 'MEDIUM') return '#eab308'
+  return '#22c55e'
+}
+
+// --- Component ---
+
+export default function GamePage() {
+  const [phase, setPhase] = useState<Phase>('input')
+  const [url, setUrl] = useState('')
+  const [lines, setLines] = useState<ScanLine[]>([])
+  const [report, setReport] = useState<ThreatReport | null>(null)
+  const [repoName, setRepoName] = useState('')
+  const [detectedStack, setDetectedStack] = useState<string[]>([])
+  const [error, setError] = useState('')
+  const [copied, setCopied] = useState(false)
+  const [animatedScore, setAnimatedScore] = useState(0)
+  const termRef = useRef<HTMLDivElement>(null)
+  const lineId = useRef(0)
+  const hasAutoScanned = useRef(false)
+
+  function addLine(text: string, type: ScanLine['type']) {
+    lineId.current++
+    setLines(prev => [...prev, { id: lineId.current, text, type }])
+  }
+
+  // Auto-scroll terminal
+  useEffect(() => {
+    if (termRef.current) termRef.current.scrollTop = termRef.current.scrollHeight
+  }, [lines])
+
+  // Auto-scan from URL param
+  useEffect(() => {
+    if (hasAutoScanned.current) return
+    const params = new URLSearchParams(window.location.search)
+    const repoParam = params.get('repo')
+    if (repoParam) {
+      hasAutoScanned.current = true
+      const fullUrl = repoParam.includes('github.com') ? repoParam : `https://github.com/${repoParam}`
+      setUrl(fullUrl)
+      scan(fullUrl)
+    }
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [])
+
+  // Animate score counter
+  useEffect(() => {
+    if (!report) return
+    const target = report.riskScore
+    const start = Date.now()
+    const duration = 1500
+    function tick() {
+      const progress = Math.min((Date.now() - start) / duration, 1)
+      setAnimatedScore(Math.round(target * (1 - Math.pow(1 - progress, 3))))
+      if (progress < 1) requestAnimationFrame(tick)
+    }
+    requestAnimationFrame(tick)
+  }, [report])
+
+  async function scan(inputUrl?: string) {
+    const targetUrl = inputUrl || url
+    if (!targetUrl.trim()) return
+
+    setPhase('scanning')
+    setLines([])
+    setError('')
+    setReport(null)
+    lineId.current = 0
+
+    try {
+      const { owner, repo } = parseGitHubUrl(targetUrl)
+      setRepoName(`${owner}/${repo}`)
+      window.history.replaceState(null, '', `${window.location.pathname}?repo=${owner}/${repo}`)
+
+      addLine(`Connecting to github.com/${owner}/${repo}...`, 'info')
+      await delay(400)
+
+      addLine('Fetching repository tree...', 'info')
+      const { files, truncated } = await fetchTree(owner, repo)
+      const dirCount = new Set(files.map(f => f.split('/').slice(0, -1).join('/'))).size
+      addLine(`Found ${files.length.toLocaleString()} files across ${dirCount} directories`, 'success')
+      if (truncated) addLine('Large repo — tree was truncated by GitHub', 'info')
+      await delay(300)
+
+      // Detect stack
+      addLine('Detecting stack & dependencies...', 'info')
+      await delay(200)
+      const stack = STACK_DETECT.filter(([, test]) => test(files)).map(([name]) => name)
+      setDetectedStack(stack)
+      addLine(`Stack: ${stack.join(' \u00b7 ') || 'Unknown'}`, 'success')
+      await delay(300)
+
+      // Sensitive files
+      addLine('Scanning for sensitive files & secrets...', 'info')
+      await delay(200)
+      const sensitive = files.filter(f => {
+        const name = f.split('/').pop() || f
+        return SENSITIVE_PATTERNS.some(p => name === p || name.startsWith(p + '.') || f.includes('/' + p))
+      })
+      for (const f of sensitive.slice(0, 12)) {
+        addLine(f, 'warning')
+        await delay(100)
+      }
+      if (sensitive.length === 0) addLine('No obvious sensitive files found', 'success')
+      if (sensitive.length > 12) addLine(`...and ${sensitive.length - 12} more`, 'warning')
+      await delay(200)
+
+      // Config files
+      const configs = files.filter(f => CONFIG_PATTERNS.some(p => f.includes(p))).slice(0, 15)
+
+      // Fetch dependencies
+      addLine('Analyzing dependencies...', 'info')
+      await delay(200)
+      let deps: Record<string, string> = {}
+      const pkgRaw = await fetchFile(owner, repo, 'package.json')
+      if (pkgRaw) {
+        try {
+          const pkg = JSON.parse(pkgRaw)
+          deps = { ...(pkg.dependencies || {}), ...(pkg.devDependencies || {}) }
+        } catch { /* ignore parse errors */ }
+      } else {
+        const reqs = await fetchFile(owner, repo, 'requirements.txt')
+        if (reqs) {
+          reqs.split('\n').forEach(l => {
+            const m = l.trim().match(/^([a-zA-Z0-9_-]+)/)
+            if (m) deps[m[1]] = '*'
+          })
+        }
+      }
+
+      // Highlight interesting deps
+      const interesting = Object.keys(deps).filter(d =>
+        /stripe|aws|openai|anthropic|firebase|supabase|prisma|mongoose|pg|mysql|redis|twilio|sendgrid|auth0|passport|jwt|bcrypt|crypto|axios|ssh|docker|kubernetes|helm|vault|sentry/i.test(d)
+      )
+      for (const d of interesting.slice(0, 8)) {
+        addLine(`${d} ${deps[d] !== '*' ? deps[d] : ''}`, 'warning')
+        await delay(80)
+      }
+      if (Object.keys(deps).length > 0) {
+        addLine(`${Object.keys(deps).length} total dependencies`, 'success')
+      }
+      await delay(300)
+
+      // Generate report via LLM
+      addLine('Generating agent threat report...', 'info')
+      const res = await fetch('/api/analyze', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ owner, repo, files, stack, dependencies: deps, sensitiveFiles: sensitive, configFiles: configs }),
+      })
+
+      if (!res.ok) {
+        const data = await res.json().catch(() => ({}))
+        throw new Error(data.error || 'Failed to generate report')
+      }
+
+      const reportData = await res.json()
+      addLine('Report complete.', 'success')
+      await delay(600)
+
+      setReport(reportData)
+      setPhase('report')
+    } catch (e: any) {
+      addLine(e.message || 'Something went wrong', 'error')
+      setError(e.message)
+    }
+  }
+
+  function reset() {
+    setPhase('input')
+    setUrl('')
+    setLines([])
+    setReport(null)
+    setError('')
+    setRepoName('')
+    setDetectedStack([])
+    setAnimatedScore(0)
+    window.history.replaceState(null, '', window.location.pathname)
+  }
+
+  async function copyLink() {
+    await navigator.clipboard.writeText(window.location.href)
+    setCopied(true)
+    setTimeout(() => setCopied(false), 2000)
+  }
+
+  const color = report ? riskColor(report.riskLevel) : '#D95E2A'
+  const circumference = 2 * Math.PI * 45
+
+  return (
+    <main className="min-h-screen">
+      {/* Nav */}
+      <nav className="fixed top-0 left-0 right-0 z-50 border-b border-border/50 bg-background/80 backdrop-blur-md">
+        <div className="mx-auto max-w-5xl flex items-center justify-between px-6 h-14">
+          <a href="/" className="flex items-center gap-2 text-sm text-muted-foreground hover:text-foreground transition-colors">
+            <ArrowLeft className="h-4 w-4" />
+            <span className="hidden sm:inline">Back to Greywall</span>
+          </a>
+          <div className="flex items-center gap-2.5">
+            <svg viewBox="0 0 32 32" fill="none" className="h-5 w-5" xmlns="http://www.w3.org/2000/svg">
+              <path d="M16 2L4 7V15C4 22.18 9.11 28.79 16 30C22.89 28.79 28 22.18 28 15V7L16 2Z" fill="#D95E2A" />
+              <path d="M16 6L8 9.5V15C8 20.05 11.42 24.68 16 26C20.58 24.68 24 20.05 24 15V9.5L16 6Z" fill="#161614" />
+              <circle cx="16" cy="12" r="2" fill="#D95E2A" />
+              <circle cx="12" cy="17" r="1.5" fill="#D95E2A" />
+              <circle cx="20" cy="17" r="1.5" fill="#D95E2A" />
+              <circle cx="16" cy="21" r="1.5" fill="#D95E2A" />
+              <path d="M16 14V19.5M14 16L12.5 17M18 16L19.5 17" stroke="#D95E2A" strokeWidth="1" strokeLinecap="round" />
+            </svg>
+            <span className="font-serif font-semibold text-lg tracking-tight">Greyscan</span>
+          </div>
+          <div className="w-20" />
+        </div>
+      </nav>
+
+      <div className="pt-14">
+        {/* ── INPUT PHASE ── */}
+        {phase === 'input' && (
+          <section className="relative min-h-[calc(100vh-3.5rem)] flex items-center justify-center px-4 sm:px-6">
+            <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_top,rgba(217,94,42,0.06)_0%,transparent_50%)]" />
+            <div
+              className="absolute inset-0 opacity-[0.03]"
+              style={{
+                backgroundImage: 'linear-gradient(rgba(249,249,247,1) 1px, transparent 1px), linear-gradient(90deg, rgba(249,249,247,1) 1px, transparent 1px)',
+                backgroundSize: '64px 64px',
+              }}
+            />
+
+            <div className="relative max-w-2xl w-full text-center animate-fade-up">
+              <h1 className="font-serif text-3xl sm:text-4xl md:text-5xl font-semibold tracking-tight leading-[1.1] mb-4">
+                What would an AI agent{' '}
+                <em className="italic text-primary">try</em> on your repo?
+              </h1>
+
+              <p className="text-muted-foreground font-serif text-base sm:text-lg leading-relaxed mb-10 max-w-xl mx-auto">
+                Paste a public GitHub URL. We&apos;ll scan your codebase and show exactly what an unrestricted AI agent would attempt.
+              </p>
+
+              <form
+                onSubmit={e => { e.preventDefault(); scan() }}
+                className="flex gap-2 max-w-lg mx-auto"
+              >
+                <input
+                  type="text"
+                  value={url}
+                  onChange={e => setUrl(e.target.value)}
+                  placeholder="github.com/owner/repo"
+                  className="flex-1 bg-card/50 border border-border/50 rounded-lg px-4 py-3 text-sm font-mono placeholder:text-muted-foreground/50 focus:outline-none focus:border-primary/50 focus:ring-1 focus:ring-primary/20 transition-all"
+                />
+                <button
+                  type="submit"
+                  disabled={!url.trim()}
+                  className="bg-primary text-primary-foreground px-5 py-3 rounded-lg text-sm font-sans font-medium hover:bg-primary/90 disabled:opacity-40 disabled:cursor-not-allowed transition-all flex items-center gap-2 cursor-pointer"
+                >
+                  Scan
+                  <ArrowRight className="h-4 w-4" />
+                </button>
+              </form>
+
+              <p className="text-xs text-muted-foreground/50 mt-4 font-sans">
+                Public repos only &middot; No code is stored &middot; Powered by <a href="https://github.com/GreyhavenHQ/greywall" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors">Greywall</a>
+              </p>
+            </div>
+          </section>
+        )}
+
+        {/* ── SCANNING PHASE ── */}
+        {phase === 'scanning' && (
+          <section className="min-h-[calc(100vh-3.5rem)] flex items-center justify-center px-4 sm:px-6 py-12">
+            <div className="max-w-2xl w-full animate-fade-up">
+              <div className="flex items-center gap-2 mb-4">
+                <Shield className="h-4 w-4 text-primary" />
+                <span className="text-xs font-sans uppercase tracking-wider text-primary font-medium">
+                  Scanning {repoName}
+                </span>
+              </div>
+
+              <div
+                ref={termRef}
+                className="code-block p-5 sm:p-6 max-h-[60vh] overflow-y-auto scrollbar-hide"
+              >
+                <div className="flex items-center gap-2 mb-5">
+                  <div className="w-3 h-3 rounded-full bg-red-500/70" />
+                  <div className="w-3 h-3 rounded-full bg-yellow-500/70" />
+                  <div className="w-3 h-3 rounded-full bg-green-500/70" />
+                  <span className="ml-2 text-xs font-mono text-muted-foreground">
+                    greywall scan
+                  </span>
+                </div>
+
+                <div className="space-y-1.5 font-mono text-xs sm:text-sm">
+                  {lines.map(line => (
+                    <div key={line.id} className="animate-fade-up" style={{ animationDuration: '0.3s' }}>
+                      {line.type === 'info' && (
+                        <span className="text-muted-foreground">
+                          <span className="opacity-50">$ </span>{line.text}
+                        </span>
+                      )}
+                      {line.type === 'success' && (
+                        <span className="text-green-400">
+                          <span className="opacity-50">{'\u2713'} </span>{line.text}
+                        </span>
+                      )}
+                      {line.type === 'warning' && (
+                        <span className="text-primary">
+                          <span className="opacity-60">{'\u26A0'} </span>{line.text}
+                        </span>
+                      )}
+                      {line.type === 'error' && (
+                        <span className="text-red-400">
+                          <span className="opacity-60">{'\u2717'} </span>{line.text}
+                        </span>
+                      )}
+                    </div>
+                  ))}
+                  {!error && (
+                    <div className="inline-block w-1.5 h-4 bg-primary/70 animate-pulse mt-1" />
+                  )}
+                </div>
+              </div>
+
+              {error && (
+                <div className="mt-4 text-center">
+                  <button
+                    onClick={reset}
+                    className="text-sm text-primary hover:text-primary/80 transition-colors font-sans cursor-pointer"
+                  >
+                    &larr; Try another repo
+                  </button>
+                </div>
+              )}
+            </div>
+          </section>
+        )}
+
+        {/* ── REPORT PHASE ── */}
+        {phase === 'report' && report && (
+          <section className="px-4 sm:px-6 py-12 sm:py-16">
+            <div className="max-w-2xl mx-auto">
+              {/* Report Card */}
+              <div className="border border-border/30 rounded-xl overflow-hidden bg-card/20 animate-fade-up glow-orange">
+                {/* Header */}
+                <div className="p-6 sm:p-8 border-b border-border/20">
+                  <div className="flex items-start justify-between gap-4">
+                    <div>
+                      <div className="flex items-center gap-2 mb-3">
+                        <Shield className="h-4 w-4 text-primary" />
+                        <span className="text-xs font-sans uppercase tracking-wider text-primary font-medium">
+                          Agent Threat Report
+                        </span>
+                      </div>
+                      <h2 className="font-mono text-lg sm:text-xl text-foreground mb-1">
+                        {repoName}
+                      </h2>
+                      <p className="text-xs text-muted-foreground font-sans">
+                        {detectedStack.join(' \u00b7 ')}
+                      </p>
+                    </div>
+
+                    {/* Risk Score Circle */}
+                    <div className="relative w-24 h-24 sm:w-28 sm:h-28 flex-shrink-0">
+                      <svg className="w-full h-full -rotate-90" viewBox="0 0 100 100">
+                        <circle
+                          cx="50" cy="50" r="45" fill="none"
+                          stroke="rgb(var(--border))" strokeWidth="5" opacity="0.3"
+                        />
+                        <circle
+                          cx="50" cy="50" r="45" fill="none"
+                          stroke={color} strokeWidth="5"
+                          strokeDasharray={circumference}
+                          strokeDashoffset={circumference - (animatedScore / 100) * circumference}
+                          strokeLinecap="round"
+                          className="transition-[stroke-dashoffset] duration-100"
+                        />
+                      </svg>
+                      <div className="absolute inset-0 flex flex-col items-center justify-center">
+                        <span className="text-2xl sm:text-3xl font-bold font-sans" style={{ color }}>
+                          {animatedScore}
+                        </span>
+                        <span className="text-[10px] text-muted-foreground uppercase tracking-wider">
+                          /100
+                        </span>
+                      </div>
+                    </div>
+                  </div>
+
+                  {/* Risk Level Badge */}
+                  <div
+                    className="mt-4 inline-flex items-center gap-1.5 px-2.5 py-1 rounded-md text-xs font-sans font-medium"
+                    style={{
+                      background: `${color}15`,
+                      border: `1px solid ${color}30`,
+                      color,
+                    }}
+                  >
+                    <AlertTriangle className="h-3 w-3" />
+                    {report.riskLevel} RISK
+                  </div>
+                </div>
+
+                {/* Summary */}
+                <div className="px-6 sm:px-8 py-4 border-b border-border/20 bg-card/10">
+                  <p className="text-sm text-muted-foreground font-serif leading-relaxed">
+                    {report.summary}
+                  </p>
+                </div>
+
+                {/* Findings */}
+                <div className="divide-y divide-border/10">
+                  {report.findings.map((finding, i) => (
+                    <div
+                      key={i}
+                      className="px-6 sm:px-8 py-4 animate-fade-up"
+                      style={{ animationDelay: `${i * 100}ms` }}
+                    >
+                      <div className="flex items-start gap-3">
+                        <div className={`mt-0.5 p-1.5 rounded ${severityBg(finding.severity)} ${severityColor(finding.severity)}`}>
+                          {typeIcon(finding.type)}
+                        </div>
+                        <div className="flex-1 min-w-0">
+                          <div className="flex items-center gap-2 mb-1">
+                            <span className={`text-[10px] font-sans font-medium uppercase tracking-wider ${severityColor(finding.severity)}`}>
+                              {finding.severity}
+                            </span>
+                          </div>
+                          <h3 className="text-sm font-sans font-medium text-foreground mb-1">
+                            {finding.title}
+                          </h3>
+                          <p className="text-xs text-muted-foreground font-serif leading-relaxed mb-2">
+                            {finding.description}
+                          </p>
+                          <code className="text-[11px] font-mono text-muted-foreground/70 bg-background/50 px-2 py-1 rounded break-all inline-block">
+                            {finding.command}
+                          </code>
+                        </div>
+                      </div>
+                    </div>
+                  ))}
+                </div>
+
+                {/* CTA */}
+                <div className="px-6 sm:px-8 py-6 sm:py-8 border-t border-border/20 bg-card/20 text-center">
+                  <p className="font-serif text-lg sm:text-xl font-semibold tracking-tight mb-2">
+                    <span className="text-primary">&ldquo;</span>
+                    This is what Greywall would have blocked.
+                    <span className="text-primary">&rdquo;</span>
+                  </p>
+                  <p className="text-xs text-muted-foreground font-serif mb-5">
+                    Container-free sandboxing with real-time observability for AI agents.
+                  </p>
+                  <a
+                    href="https://github.com/GreyhavenHQ/greywall"
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="inline-flex items-center gap-2 bg-primary text-primary-foreground px-5 py-2.5 rounded-lg text-sm font-sans font-medium hover:bg-primary/90 transition-all"
+                  >
+                    Install Greywall
+                    <ArrowRight className="h-4 w-4" />
+                  </a>
+                </div>
+              </div>
+
+              {/* Actions */}
+              <div className="flex items-center justify-center gap-3 mt-6">
+                <button
+                  onClick={copyLink}
+                  className="flex items-center gap-2 px-4 py-2 rounded-lg border border-border/30 text-sm text-muted-foreground hover:text-foreground hover:border-border/50 transition-all font-sans cursor-pointer"
+                >
+                  {copied ? <Check className="h-4 w-4 text-green-400" /> : <Copy className="h-4 w-4" />}
+                  {copied ? 'Copied!' : 'Share Report'}
+                </button>
+                <button
+                  onClick={reset}
+                  className="flex items-center gap-2 px-4 py-2 rounded-lg border border-border/30 text-sm text-muted-foreground hover:text-foreground hover:border-border/50 transition-all font-sans cursor-pointer"
+                >
+                  Scan Another Repo
+                </button>
+              </div>
+            </div>
+          </section>
+        )}
+      </div>
+    </main>
+  )
+}

components/nav.tsx

@@ -36,6 +36,12 @@ export function Nav() {
           >
             About
           </a>
+          <a
+            href="/greyscan"
+            className="text-sm text-primary hover:text-primary/80 transition-colors hidden sm:block font-medium"
+          >
+            Greyscan
+          </a>
           <a
             href="https://github.com/GreyhavenHQ/greywall"
             target="_blank"