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Causal Identification

Category: Engineering  ·  Sub-category: languages  ·  Last updated:
Use whenever an analysis makes or implies a CAUSAL claim — "the effect of", "X caused Y", "the policy raised", "the treatment increased", "because we did X, Y changed" — or whenever you're running difference-in-differences, event studies, instrumental variables, regression discontinuity, matching, synthetic control, or panel fixed-effects models. Forces the identification strategy and its assumptions to be stated and tested BEFORE estimating, and treats the design-specific robustness suite (parallel trends, first-stage strength, manipulation tests, balance, placebo, sensitivity) as mandatory, not optional. Use in R, Julia, or Python even when the user just says "regress Y on X", "did it work", or "estimate the impact" — a regression coefficient is not a causal effect until the design earns it.

What this skill does

Causal Identification is a community-contributed Claude Code skill in the languages sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/causal-identification/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use whenever an analysis makes or implies a CAUSAL claim — "the effect of", "X caused Y", "the policy raised", "the treatment increased", "because we did X, Y changed" — or whenever you're running difference-in-differences, event studies, instrumental variables, regression discontinuity, matching, synthetic control, or panel fixed-effects models. Forces the identification strategy and its assumptions to be stated and tested BEFORE estimating, and treats the design-specific robustness suite (parallel trends, first-stage strength, manipulation tests, balance, placebo, sensitivity) as mandatory, not optional.

Who uses this skill

The Causal Identification Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 94,000+ 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/causal-identification
curl -L https://claudskills.com/skills/causal-identification/SKILL.md \
  -o ~/.claude/skills/causal-identification/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/causal-identification/. Claude Code auto-discovers it on next session.

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

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

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

Frequently asked questions

How do I install the Causal Identification Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/causal-identification/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Causal Identification skill do?
Use whenever an analysis makes or implies a CAUSAL claim — "the effect of", "X caused Y", "the policy raised", "the treatment increased", "because we did X, Y changed" — or whenever you're running difference-in-differences, event studies, instrumental variables, regression discontinuity, matching, synthetic control, or panel fixed-effects models. Forces the identification strategy and its assumptions to be stated and tested BEFORE estimating, and treats the design-specific robustness suite (parallel trends, first-stage strength, manipulation tests, balance, placebo, sensitivity) as mandatory, not optional. Use in R, Julia, or Python even when the user just says "regress Y on X", "did it work", or "estimate the impact" — a regression coefficient is not a causal effect until the design earns it.
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.
When should I use the Causal Identification skill?
Use Causal Identification when your Claude Code task falls under the Engineering category — specifically in the languages area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Causal Identification" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Causal Identification skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Causal Identification is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
lancegui. (2026). Causal Identification [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/causal-identification/
BibTeX
@misc{causal-identification-2026,
  author    = {lancegui},
  title     = {Causal Identification [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/causal-identification/}
}

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