Fetch Public Page Stats

SkillFiles & storage

Uses WebFetch to pull publicly visible subscriber count and per-post public view count from substacker's Substack archive page and individual post URLs. Supplements the CSV when subscriber-count field is stale (>24h old) or when a post has public shares not yet reflected. Rate-limited to ≤10 fetches per invocation. Use when CSV subscribers-end field may have drifted or when external-share attribution needs a public signal. Trigger keywords — public stats, Substack public page, subscriber count check, post views supplement, WebFetch.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Fetch Public Page Stats skill

What this skill tells your AI

The instructions your AI receives, as published by lyndonkl/claude in skills/fetch-public-page-stats/SKILL.md and read by ahel’s review.

Workflow

Supplement CSV with public-page data:
- [ ] Step 1: WebFetch https://thethinkersnotebook.substack.com/ → extract subscriber count
- [ ] Step 2: Compare to csv.subscribers_end; if delta > 5% OR CSV export >24h old, flag as `public > csv`
- [ ] Step 3: For each post with |z| ≥ 1.0 (outliers), WebFetch the post URL
- [ ] Step 4: Extract public "N views" counter; compare to CSV views
- [ ] Step 5: Return {subscribers_public, post_deltas: [...]}
- [ ] Step 6: Cap: ≤10 WebFetch calls per invocation

Use cases

  • CSV export was Monday morning; a post went viral Monday afternoon. Public page shows 1380 views; CSV shows 1240. Delta +140 in 6 hours supports external-share attribution.
  • Writer forgot to export but wants an unofficial check. Public subscriber count is the best available signal.
  • Attribute-performance wants a verification signal for external-share hypothesis.

Guardrails

  1. Cap at 10 WebFetch calls. Substack soft-throttles.
  2. Never fetch more than the public homepage + outlier-post URLs. No scraping.
  3. If WebFetch fails or returns stale, note in data-caveats and proceed with CSV-only.
  4. Don't use this skill to replace the CSV. It supplements. CSV is primary.
  5. Public view counts can differ from CSV views (CSV counts "opens" + Apple-pixel pre-fetch; public counts visits). Report both, don't pretend they're the same metric.

Signals

GitHub stars
159
Forks
23
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
fetch-public-page-stats
Source
github.com/lyndonkl/claude