aeja-robustness

aeja-robustness is a skill for Claude Code from brycewang-stanford/Awesome-Journal-Skills. It costs 0 tokens per session (1,551 once invoked), scanned A, original, MIT.

A guide for checking whether a research result remains similar when reasonable choices about the model, sample, or statistical inference are changed. In empirical economics, these checks are called robustness checks.

In plain words
What is it for?
Use it to plan checks involving controls, samples, functional form, bandwidths, clustering, inference, and specification search before submission or during revision. It does not establish the main causal design.
Why use it?
It helps show that a headline estimate is not caused only by one arbitrary specification or researcher choice. It links each check to a particular threat rather than adding unrelated tables.

Skill for Claude Code

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

Part of the aej-applied-economics-skills plugin — 12 skills shipped together

Good fit Use it to plan checks involving controls, samples, functional form, bandwidths, clustering, inference, and specification search before submission or during revision. It does not establish the main causal design.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/brycewang-stanford/awesome-journal-skills/aeja-robustness
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 · 1,259 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 aeja-robustness
Clone the repo
git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills

Made for: Claude Code.

Or install aej-applied-economics-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 aeja-robustness

README.md
[![agentmods](https://agentmods.dev/badge/skills/brycewang-stanford/awesome-journal-skills/aeja-robustness/github.svg)](https://agentmods.dev/skills/brycewang-stanford/awesome-journal-skills/aeja-robustness)
Your own site
<a href="https://agentmods.dev/skills/brycewang-stanford/awesome-journal-skills/aeja-robustness"><img src="https://agentmods.dev/badge/skills/brycewang-stanford/awesome-journal-skills/aeja-robustness/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 aeja-robustness

Your own site · 80×15
<a href="https://agentmods.dev/skills/brycewang-stanford/awesome-journal-skills/aeja-robustness"><img src="https://agentmods.dev/badge/skills/brycewang-stanford/awesome-journal-skills/aeja-robustness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,551 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 $0.00000 $0.01551
Opus 5.5 $0.00000 $0.00620
Sonnet 5.5 $0.00000 $0.00310
Haiku 4.5 $0.00000 $0.00155

Measured 1mo ago against content hash 08102b6447a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

aeja-robustness 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 1mo 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-Applied-Economics-Skills/skills/aeja-robustness/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.

Robustness Suite (aeja-robustness)

When to trigger

  • The main estimate is in hand and you need to show it is not an artifact of one specification
  • A referee asks "is this robust to [alternative controls / sample / functional form / inference]?"
  • The result depends on a bandwidth, a clustering choice, or a sample-selection rule that could be questioned
  • You suspect specification-search concerns and want to pre-empt them

The AEJ: Applied robustness bar

AEJ: Applied referees probe whether the headline number is stable, honestly inferred, and not the product of researcher degrees of freedom. Robustness here is not a wall of regressions — it is a targeted set of checks each tied to a specific threat to the design. Map every plausible objection to the one check that answers it, and report the checks so the reader sees the estimate barely moves.

Threat to the result The check that answers it
Omitted confounders Oster δ / coefficient-stability bounds; added controls in steps
Specification search a specification curve / multiverse; pre-registered primary spec
Functional form levels vs logs, alternative outcome definitions, nonparametric version
Sample selection drop influential units, alternative inclusion rules, balanced vs unbalanced panel
Inference too narrow clustered SEs at the right level, wild-cluster bootstrap (few clusters), randomization inference
Design-specific fragility DID: honest-DID bounds; RD: bandwidth/donut; IV: weak-IV-robust set
Multiple outcomes/subgroups Romano–Wolf / List–Shaikh–Wooldridge MHT adjustment

Robustness craft

  1. Lock the primary specification first. Everything else is a perturbation around it; do not present five co-equal specs and let the reader guess which is preferred.
  2. One threat → one check. A robustness table should read as "here is the worry, here is the evidence it is not a problem."
  3. Show stability, not just significance. The persuasive object is that the point estimate barely moves, not that it stays starred.
  4. Be honest about where it weakens. A check that shifts the estimate is information; report it and bound the implication rather than hiding it.
  5. Match inference to the data structure (clustering, spatial dependence, few clusters) — wrong SEs are the most common AEJ: Applied robustness failure.

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. 1mo ago First seen · 95 lines · 0 tokens per session scan A 08102b6447a2

Subscribe to this mod's changes

aeja-robustness is a skill published in the GitHub repository brycewang-stanford/Awesome-Journal-Skills (1,259 stars, last pushed 19d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,551 tokens. 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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