Agent Skills En is a small, MIT-licensed pack that teaches your coding agent repeatable working habits — install once, use in any project.
View on GitHub Browse on skills.shnpx skills add alapha888/agent-skills-en
Works with Claude Code, Codex and other agents that support the SKILL.md format. Free and open source (MIT). Also listed on skills.sh and AI Agents Listing.
This page is the product home for Agent Skills En: what it does, who it is for, and how to install it. The code and issue tracker live on GitHub.
Two of the five skills — code review and git commit — are also available as condensed, print-ready cheat sheets (PDF + PNG) in a $19 one-time bundle on Gumroad. The full skill text stays free on GitHub (MIT).
Read the cheat sheets free as Gists: Code Review Cheat Sheet · Git Commit Cheat Sheet. The Gist text is free; the Gumroad bundle is the condensed, print-ready version.
Notes (Oct 9): Zero sales, four pending reviews — what I am actually checking.
Previews (top section of each sheet; the bundle contains the full sheets):
MDClip Pro (web-to-Markdown conversion, ¥15/month) and SyncMatrix (multi-account publishing tracker, ¥39/month) are in pre-validation; no payment is collected, and development will proceed only if enough people join the waitlist by October 31.
MDClip Pro waitlist · SyncMatrix waitlist
Three more tools are in the same pre-validation, each with a one-time price and a registration threshold: TabVault (local-first browser tab session manager, $19, by November 8), ChangeBrief (web page change monitoring with plain-language summaries, $29, by November 9), and PocketRescue (offline rescue of exported Pocket archives, $29, by November 10). None is built yet and no payment is collected; each will only be developed if 20 people register in time.
TabVault waitlist · ChangeBrief waitlist · PocketRescue waitlist
A mobile concept is also in validation: PhotoVeil (planned iOS app, not yet built) — an on-device tool to bulk strip EXIF/GPS metadata, add purpose watermarks to sensitive photos, and convert HEIC files. Intended price $9.99 lifetime; it will only be developed if 30 people register by October 31.
A desktop concept is also in validation: BatchRename (planned macOS-first app, not yet built) — batch-rename files with rules and EXIF/photo metadata, with a live preview of every new name and one-click undo. Intended price $24.99 one-time; it will only be developed if 30 people register by October 31.
A second desktop concept is in validation: LocalDevKit (planned native macOS app, not yet built) — an offline developer toolbox for AI-coding data tasks: streaming viewer for very large JSON and log files, cURL conversion, local redaction of secrets before sharing, and an LLM token counter. Intended price $19 one-time; it will only be developed if 30 people register by October 31, and registrants pick the first tools via a top-3 ballot.
A browser extension concept is also in validation: PageScrape Export (not yet built) — one click exports the list or table on the page you are viewing to a clean CSV or Excel file, fully local, with templates for e-commerce products, job postings, and property listings. Intended price $39 one-time; it will only be developed if 20 people register by November 10, and registrants vote on the first template.
A screenshot tool concept is also in validation: SnapRedact (not yet built) — capture a page locally, then one click detects and masks emails, phone numbers, names, amounts and order numbers before you share it, with searchable PDF export. Intended price $19 one-time; it will only be developed if 20 people register by November 10, 2026 — and not even then if most registrants say their browser's built-in capture is already enough.