aejpol-identification

aejpol-identification is a skill for Claude Code from brycewang-stanford/Awesome-Journal-Skills. It costs 82 tokens per session (1,579 once invoked), scanned A, original, MIT.

A guide for checking whether a policy study supports a credible cause-and-effect claim for the American Economic Journal: Economic Policy. It covers common designs such as difference-in-differences, event studies, instrumental variables, regression discontinuity, and randomized trials.

In plain words
What is it for?
Use it to stress-test a policy evaluation before finalising its tables and figures. It helps examine reforms, eligibility cutoffs, formula changes, and randomized programme rollouts.
Why use it?
Policy data can show that two things changed together without proving that the policy caused the change. This guide helps expose competing explanations and clarify the assumption that makes the estimate causal.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the aej-economic-policy-skills plugin — 12 skills shipped together

Good fit Use it to stress-test a policy evaluation before finalising its tables and figures. It helps examine reforms, eligibility cutoffs, formula changes, and randomized programme rollouts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/brycewang-stanford/awesome-journal-skills/aejpol-identification
About the project

Awesome Journal Skills is a collection of agent skill packs tailored to hundreds of academic journals across fields including economics, social science, medicine, science, and engineering. Researchers use the packs for tasks such as choosing topics, designing empirical strategies, preparing tables and figures, submitting papers, and responding to reviewers. The catalogue entries are the project's journal-specific skills and related plugins.

brycewang-stanford/Awesome-Journal-Skills · 1,142 stars · on GitHub · copaper.ai

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add brycewang-stanford/Awesome-Journal-Skills --skill aejpol-identification
Clone the repo
git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills

Made for: Claude Code.

Or install aej-economic-policy-skills, the plugin that ships this one along with the rest of its 12 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for aejpol-identification

README.md
[![agentmods](https://agentmods.dev/badge/skills/brycewang-stanford/awesome-journal-skills/aejpol-identification/github.svg)](https://agentmods.dev/skills/brycewang-stanford/awesome-journal-skills/aejpol-identification)
Your own site
<a href="https://agentmods.dev/skills/brycewang-stanford/awesome-journal-skills/aejpol-identification"><img src="https://agentmods.dev/badge/skills/brycewang-stanford/awesome-journal-skills/aejpol-identification/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for aejpol-identification

Your own site · 80×15
<a href="https://agentmods.dev/skills/brycewang-stanford/awesome-journal-skills/aejpol-identification"><img src="https://agentmods.dev/badge/skills/brycewang-stanford/awesome-journal-skills/aejpol-identification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,579 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00082 $0.01579
Opus 5 $0.00041 $0.00790
Sonnet 5 $0.00016 $0.00316
Haiku 4.5 $0.00008 $0.00158

Measured 7d ago against content hash 17a9bf26712c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-22, from the pricing page.

Security

Grade A, and why

aejpol-identification scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AEJ-Economic-Policy-Skills/skills/aejpol-identification/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Identification — Credible Policy Evaluation (aejpol-identification)

When to trigger

  • The causal effect of a policy rests on OLS + controls, or TWFE on staggered policy adoption
  • A reform / threshold / experiment exists but the design's assumptions are not pinned down
  • A referee questions whether the estimated effect is really caused by the policy
  • You are unsure the design clears AEJ: Policy's credible-causal-evidence bar

The AEJ: Policy identification bar

AEJ: Policy is an empirical policy journal: the effect attributed to the policy must be credibly causal, the estimand must be the policy-relevant one, and the design must survive the obvious confound that the policy was not random. The policy variation is the research design — name it explicitly (a reform date, an eligibility cutoff, a formula kink, a randomized rollout) and defend the assumption that makes it causal. Report standard errors (no significance asterisks; see aejpol-tables-figures) and make the design reproducible for the AEA Data Editor.

Design paths

Path A: DID / event study (reforms, staggered policy adoption)

  • With staggered adoption move beyond TWFE (Callaway–Sant'Anna, Sun–Abraham, Borusyak–Jaravel–Spiess, de Chaisemartin–D'Haultfœuille); report a Goodman-Bacon decomposition to show the bias TWFE would induce.
  • Show a clean event study with pre-period leads flat around zero; do not assert parallel trends, demonstrate it (and probe with Rambachan–Roth honest-DID where pre-trends are imperfect).
  • Define the policy-relevant estimand (ATT on treated jurisdictions; weight by population/exposure if the policy lesson requires it).
  • Cluster at the policy-assignment level (often state/jurisdiction); address few-cluster issues (wild-cluster bootstrap).

Path B: IV / instrumented policy exposure

  • Strong first stage; with weak instruments use Anderson–Rubin / weak-IV-robust sets and report the effective F.
  • Defend the exclusion restriction in institutions and theory, not just statistically; argue the instrument affects outcomes only through the policy channel.
  • State the LATE complier population and whether it is the policy-relevant margin.

Read the full file on GitHub · 95 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 95 lines · 0 tokens per session scan A 17a9bf26712c

Subscribe to this mod's changes

aejpol-identification is a skill published in the GitHub repository brycewang-stanford/Awesome-Journal-Skills (1,142 stars, last pushed 7d ago), licensed MIT. It adds 82 tokens to every session and 1,579 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-15.

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