Browsing Substack
Use when the user wants to extract data from a Substack publication or post — publication metadata (name, author, description, subscriber count, recent posts) or full individual post content (title, subtitle, author, date, body text, like count, comment count). Substack is server-rendered and publicly accessible without login for most content.
Install
$ agentstack add skill-browsing-skills-browsing-skills-substack-com ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-browsing-skills-browsing-skills-substack-com) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Substack — Browsing Skill
Use this index to choose the Substack action that matches the user request, then open only the linked reference file for the complete navigation, requirements, code, and return shape.
Action Index
- publication-data — Extract publication metadata from a Substack homepage: name, author, description, subscriber count (if shown), post count, and a list of recent posts with titles, dates, likes, and URLs. Full spec: [references/publication-data.md](references/publication-data.md).
- post-data — Extract a single Substack post: title, subtitle, author, publication date, full body text, like count, and comment count. Supports an optional markdown output mode. Full spec: [references/post-data.md](references/post-data.md).
Notes
- Most Substack content is publicly accessible without login. Paid/subscriber-only posts show a paywall preview; the body text will be partial.
- Substack is server-rendered so selectors are stable across publications.
- These actions are read-only. They do not subscribe, comment, like, or change account settings.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: browsing-skills
- Source: browsing-skills/browsing-skills
- License: MIT
Install and usage instructions live in the source repository linked above.
Reviews
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Versions
- v0.1.0 Imported from the upstream source.