Identification Proofs

Q: What is a Claude Code skill and how does the Identification Proofs 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. Identification Proofs is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: general-misc · Last updated: 2026-05-28

This skill covers formal identification arguments and proofs in structural and reduced-form econometrics. Use when the user needs to prove or formalize that a parameter is identified — including writing identification propositions, stating regularity conditions, deriving rank conditions, or showing observational equivalence fails. Triggers on "identification proof", "identification argument", "identify the parameter", "show identification", "identification condition", "exclusion restriction proof", "rank condition", "order condition", "identification strategy formal", "nonparametric identification", "parametric identification", "local identification", "global identification", "observational equivalence", "identification at infinity", "completeness condition", "regularity conditions", "Rothenberg", "proof of identification", "identification result", "identified parameter", "point identified", "set identified", "partial identification".

About this skill (catalog notes)

Identification Proofs includes pricing or quota commentary; at least one code block. The SKILL.md runs to about 1,119 words, in the catalog's typical mid-range.

Source: copaper.ai
Original author: brycewang-stanford
Indexed lastmod: 2026-05-28
Catalog position: General · general-misc
Indexed related skills: 10

How Identification Proofs fits the catalog

Identification Proofs sits in the General category under the general-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Reference for writing formal and informal identification arguments: from stating the target parameter precisely, through deriving the identification result, to connecting it to a feasible estimator.

What this skill does

Identification Proofs 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/identification-proofs/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user needs to prove or formalize that a parameter is identified — including writing identification propositions, stating regularity conditions, deriving rank conditions, or showing observational equivalence fails. Triggers on "identification proof", "identification argument", "identify the parameter", "show identification", "identification condition", "exclusion restriction proof", "rank condition", "order condition", "identification strategy formal", "nonparametric identification", "parametric identification", "local identification", "global identification", "observational equivalence", "identification at infinity", "completeness condition", "regularity conditions", "Rothenberg", "proof of identification", "identification result", "identified parameter", "point identified", "set identified", "partial identification".

Who uses this skill

The Identification Proofs 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 119,000+ 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/identification-proofs
curl -L https://claudskills.com/skills/identification-proofs/SKILL.md \
  -o ~/.claude/skills/identification-proofs/SKILL.md

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

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

📱 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 Identification Proofs Claude Code skill?

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

What does the Identification Proofs skill do?

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 Identification Proofs skill?

Use Identification Proofs when your Claude Code task falls under the General category — specifically in the general misc 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 Identification Proofs" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Identification Proofs 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. Identification Proofs is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/blob/HEAD/skills/11-James-Traina-compound-science/skills/identification-proofs/SKILL.md
Author: brycewang-stanford
Website: https://copaper.ai

Cite this skill

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

APA

brycewang-stanford. (2026). Identification Proofs [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/identification-proofs/

BibTeX

@misc{identification-proofs-2026,
  author    = {brycewang-stanford},
  title     = {Identification Proofs [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/identification-proofs/}
}

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Badge

[![ClaudSkills](https://claudskills.com/badge/identification-proofs.svg)](https://claudskills.com/skills/identification-proofs/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

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