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I built a self-writing book on agentic coding

A pattern language for building software with AI agents — from product judgment to agentic construction.

Developer Tools

Added April 6, 2026 · Last analysed April 10, 2026 · via Hacker News

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Screenshot of I built a self-writing book on agentic coding

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 10 April 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

I built a self-writing book on agentic coding is largely in shape, with a thorough launch checklist and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and no email security records.

Launched on Hacker News on April 6, 2026. The site is hosted on AWS S3 and served through AWS CloudFront, with a domain registered the day of launch. The crawl picked up 7 technologies on this site, covering CDN, cloud, DNS providers, and hosting. The stack includes Amazon Web Services, AWS CloudFront, and AWS Route 53.

For context, it's running the same core stack as 512 other launches.

If you own this site, refresh the snapshot and see the full fix list any time →

6.2
StackScope Score
Good
100/100 Launch Readiness
Launch ready
0/6 Security Headers
Poor
2/3 Legal
Partial
2/2 Crawl files
Complete
Vibe Score 5 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (7) · Scale-up stack

Infrastructure
CDN AWS CloudFront (3)
Cloud Amazon Web Services (2)
DNS AWS Route 53
Hosting AWS S3 (3)
Protocol HTTP/3 (2)
Build & Framework
Icon font Font Awesome
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AMAZON-02 - Amazon.com, Inc., US
AS16509 · US
DNS
AWS Route 53
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
Domain Age
5 months
Registered Apr 2026 · Amazon Registrar, Inc.

Email Security

✗
SPF Not published. Your domain can be spoofed in phishing emails.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✗
DMARC Not published. Receivers fall back to permissive defaults.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Readiness Breakdown How?

✓ Custom title and meta description
✓ Open Graph tags (title, image, description)
✓ Twitter card meta tags
✓ Canonical URL declared
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
⚠
Meta description is 188 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Vibe Score Breakdown How?

SignalPoints
AI code-structure signals +5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

No AI stance declared
✗ llms.txt published
✓ No AI bots blocked in robots.txt
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✓ robots.txt
✓ sitemap.xml (196 URLs)
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/agent_governance_and_feedback/approval_policy.html
? Terms of Service not detected
98% unique

Security Headers (0/6)

✗
Referrer-Policy
✗
X-Frame-Options
✗
Permissions-Policy experimental (check browser support)
✗
X-Content-Type-Options
✗
Content-Security-Policy
✗
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

398ms response time
Faster than 43% of sites
1 third-party domains loaded

Build

✓ Code splitting
16 JS files
14 CSS files
1 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.