SaaS Stack Scanner with AI

# SaaS Stack Scanner — SoloStack Skill File
> Drop this file into your SoloStack repo and Claude Code will use it as
> context to run this workflow automatically.
---
## Overview
Scan any company website to detect their SaaS tools — CRM, email, scheduling, analytics, chat — using just fetch() and regex. Batch-enrich your entire CRM for free.
## Capabilities
1. **Discovery-Based Detection** — Doesn't rely on a hardcoded list. Extracts ALL third-party domains from HTML, maps known ones to friendly names, and surfaces unknown services for discovery. You'll find tools you didn't know existed.
2. **WordPress Plugin Detection** — Scans wp-content/plugins/ paths to identify installed plugins — WPForms, WooCommerce, Gravity Forms, ActiveCampaign, Yoast SEO. WordPress powers 40% of the web, so this catches a lot.
3. **Batch Processing** — Processes leads in configurable batches (default 10) with parallel HTTP requests. 389 leads enriched in under 5 minutes. No rate limits because it's just HTTP GET.
4. **CRM Integration** — Writes directly to your Neon Postgres database. Tech stacks stored as JSONB arrays — queryable with SQL. Filter leads by tool: SELECT * FROM contacts WHERE enrichment_data->'tech_stack' ? 'HubSpot'
5. **Zero External APIs** — No BuiltWith ($295/mo), no Wappalyzer API ($100/mo), no SimilarTech. Just fetch() and regex. The signals are in the public HTML — script tags, CDN URLs, tracking pixels, meta generators.
6. **Stack Teardown Lead Magnets** — Generate personalized 'stack teardown' reports for outreach — show each lead exactly what they're paying for, what's replaceable, and estimated savings. Turns cold outreach into warm consulting.
## Pipeline
1. **Pull Leads** — Query CRM for contacts with company domains — filter by ICP score, segment, or lead list
2. **Fetch HTML** — Parallel fetch() of each company's homepage + key pages (about, pricing, contact) — 10 sites at a time
3. **Detect Stack** — Extract third-party domains from script/link/iframe tags, match WordPress plugins, identify platforms from meta tags
4. **Store & Segment** — Write tech_stack array to CRM enrichment_data — now queryable for segmented outreach campaigns
## Use Cases
- **Personalized Cold Outreach:** Instead of 'Hey, I noticed you run an agency', say 'I see you're using HubSpot + Calendly + Lemlist — that's ~$160/mo for tools that could run on one stack for $13.'
- **Lead Segmentation by Tool:** Create campaigns targeting specific tool users: 'All GoHighLevel agencies', 'HubSpot users with ICP > 80', 'WordPress sites using WooCommerce'.
- **Competitive Intelligence:** See what tools your ICP actually uses — not what you assume. If 40% of your leads use GoHighLevel instead of HubSpot, your positioning needs to address GoHighLevel.
- **Stack Teardown Lead Magnets:** Generate a personalized PDF showing each prospect their current tools, estimated monthly cost, and exactly how much they'd save by consolidating. Higher-converting than generic ebooks.
## Warnings
- Sites behind Cloudflare/bot protection will return empty results (~13% failure rate in our tests)
- JavaScript-only rendered tools (React lazy-loaded widgets) won't be detected — the scanner uses raw HTML, not a headless browser
- Cost estimates are based on typical small business tier pricing — actual costs vary by plan
## Sample Output
```json
{}
```
Download the complete skill file with full implementation details,
agent prompts, and ready-to-run scripts.