Unstack
Analyze any website's tech stack from a single URL. Detects frameworks, CMS platforms, CDNs, hosting, third-party services, and security posture by inspecting HTTP headers, HTML source, cookies, asset URL patterns, and common framework paths. Produces a styled HTML report or a quick chat summary. Use this skill whenever the user asks to analyze, audit, reverse-engineer, or identify the technology behind a website. Also trigger when users say things like "what is this site built with", "what stack does X use", "tech stack of", "what framework", "what CMS", or paste a URL and ask about its technology. Even if the user just pastes a URL and says "check this" or "what's this running", this skill applies.
Works with: Claude Code (native) · Cursor, Codex CLI (manual)
native: this artifact type is that client's own format
Install (Claude Code):
cp -r unstack ~/.claude/skills/- Adoption: 1 repos
- Upkeep: 48.0
- Freshness: 65.0
- Evidence coverage: 84% of the inputs this score can use — the rest are unknown, and the score is discounted for it
- Health: active
- GitHub stars: 0
- Contributors: 1
- License: MIT
Security audit
Not scanned yet. We audit npm-published capabilities for known advisories, install-time scripts and permission surface; this one has no npm package we can resolve, or has not reached the queue.
source ↗ · skill:simplyarun/unstack
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Measured 2026-08-09 · scorer s5 · how · something wrong here?