How do I install the Add Derivation Cross Sheet Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/add-derivation-cross-sheet/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

ClaudSkills / General / general-misc

Add Derivation Cross Sheet

Category: General · Sub-category: general-misc · Last updated: 2026-05-21

Wire up a Folio `kind: cross_sheet` derivation — pull a field from a sibling Folio sheet that shares the same primary key (the 1:1 sidecar pattern). Invoke when the user wants to "join two sheets", "pull revenue from the finance sheet into customers", or otherwise copy values keyed by PK from one sheet to another.

From the source SKILL.md

Author a derivations/<target>.yaml of kind: cross_sheet that joins this sheet 1:1 with a sibling sheet on the calling sheet's primary key, and verify with one materialize.

What this skill does

Add Derivation Cross Sheet is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/add-derivation-cross-sheet/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Add Derivation Cross Sheet Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/add-derivation-cross-sheet
curl -L https://claudskills.com/skills/add-derivation-cross-sheet/SKILL.md \
  -o ~/.claude/skills/add-derivation-cross-sheet/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/add-derivation-cross-sheet/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/add-derivation-cross-sheet/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\add-derivation-cross-sheet\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

Source: https://github.com/nyuta01/folio/blob/HEAD/skills/add-derivation-cross-sheet/SKILL.md
License: MIT
Author: nyuta01
Website: https://pypi.org/project/folio-kit/

More General skills

Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all General skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel

Add Derivation Cross Sheet

From the source SKILL.md

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

More General skills

Categories

Use cases

Popular tags

Learn

Site