Claude Code skills
Dated checks you add to Claude Code. Each skill is a SKILL.md, an offline scanner and its rule table: ask Claude in plain words and it reads every matching file and names the line, the date and the fix. Updated 2026-10-03.
GitHub Actions lint skill for Claude Code — retired runners, EOL Node
Finds the workflow lines that break CI, with the date and the fix
$12 once
Terraform cost review skill for Claude Code — standing AWS and Azure charges
Standing cloud charges in your Terraform, with the list price and the fix
$15 once
License check skill for Claude Code — BUSL, SSPL, AGPL changes in your deps
Which of your dependencies changed licence, and on which date
$12 once
Three dated DevOps checks for Claude Code — Actions, Terraform, licences
GitHub Actions, Terraform cost and dependency licence skills in one pack
$29 once
Tax & payroll rule skills
For accounting and payroll teams. The same file runs in Claude (claude.ai, Claude Code), ChatGPT Business, Codex and Gemini CLI; a script computes the 2026 rule with its official source and check date.
Minijob & Midijob 2026 Rechner-Skill (Claude, ChatGPT Business)
AN- und AG-Anteil für Minijob und Midijob 2026 – exakt nach § 20 Abs. 2a SGB IV
$15 once
Tax & payroll rule skills for AI – Japan invoice + Germany Midijob 2026
Two skills that compute 2026 rules exactly instead of letting AI guess
$25 once
Sold through Whop and Gumroad. Each one is a one-time purchase.
Trader tax skills
For investors who file their own tax: Brazil monthly DARF from the B3 extract, and Spain gains from a foreign broker (IBKR, DEGIRO, Trading 212) with FIFO and Modelo 720. Calculation only - no investment advice.
Skill DARF de ações 2026 — swing, day trade, FII e isenção de R$ 20 mil
Extrato da B3 → DARF de cada mês com vencimento, no seu computador
$15 once
Skill ganancias con bróker extranjero 2026 — IBKR, DEGIRO, Trading 212
Tus operaciones en euros con FIFO, regla de los dos meses y Modelo 720
$15 once
More Claude Code skills
Each one wraps a rule engine we already run, with its example output; same install, one-time purchase.
Security headers skill for Claude Code — dead headers and broken CSP
18 header findings in one _headers file, each with file:line and the reason
$12 once