aejmic-theory-model

aejmic-theory-model is a skill for Claude Code from brycewang-stanford/Awesome-Journal-Skills. It costs 0 tokens per session (1,441 once invoked), scanned A, original, MIT.

A theory-building guide for manuscripts submitted to the American Economic Journal: Microeconomics, a journal covering microeconomic theory and its applications. It helps define the economic model, choose an equilibrium concept, and plan the proof.

In plain words
What is it for?
Use it to specify players, actions, information, timing, and payoffs; choose the right solution concept; and design a proof strategy for a theorem, characterization, or impossibility result.
Why use it?
It addresses unclear assumptions, mismatched solution concepts, and fragile proof plans before they undermine the paper. It also helps balance a model's generality with the need for a result that can be understood and proved.

Skill for Claude Code

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

Part of the aej-microeconomics-skills plugin — 12 skills shipped together

Good fit Use it to specify players, actions, information, timing, and payoffs; choose the right solution concept; and design a proof strategy for a theorem, characterization, or impossibility result.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/brycewang-stanford/awesome-journal-skills/aejmic-theory-model
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 · 1,289 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 aejmic-theory-model
Clone the repo
git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills

Made for: Claude Code.

Or install aej-microeconomics-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 aejmic-theory-model

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/brycewang-stanford/awesome-journal-skills/aejmic-theory-model"><img src="https://agentmods.dev/badge/skills/brycewang-stanford/awesome-journal-skills/aejmic-theory-model.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 1,441 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 $0.01441
Opus 5.5 $0.00000 $0.00576
Sonnet 5.5 $0.00000 $0.00288
Haiku 4.5 $0.00000 $0.00144

Measured 1mo ago against content hash 1fc24749d5f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

aejmic-theory-model 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-Microeconomics-Skills/skills/aejmic-theory-model/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Theory Model & Proof Architecture (aejmic-theory-model)

This is the central skill for AEJ: Micro. The journal is theory-first: the deliverable is a clean, general, well-motivated result — a theorem, characterization, or impossibility — that a broad microeconomics audience finds illuminating. Get the model and the proof right before anything else.

When to trigger

  • The primitives (players, actions, information, timing, payoffs) are not yet pinned down
  • The equilibrium / solution concept is unstated or mismatched to the question
  • A result is conjectured but the proof strategy is unclear or fragile
  • You are trading generality against tractability and cannot decide where to cut
  • A referee questions which assumption the result actually depends on (then pair with aejmic-identification)

The AEJ: Micro modeling bar

AEJ: Micro wants the economics to be the point: the model should be the simplest environment in which the mechanism is visible, and the result should travel beyond the example. It sits between JET/GEB (specialist, often maximal generality) and AEJ: Applied (empirical). Aim for a result that a non-specialist micro theorist can state in one sentence and that a specialist finds non-obvious.

1. Model setup — make primitives minimal and motivated

  • State players, action sets, information structure, timing, and payoffs explicitly; flag every assumption that is substantive vs. WLOG.
  • Prefer the minimal environment that exhibits the mechanism; add structure only when it earns its keep in the result.
  • Motivate each non-standard assumption economically (an institution, a friction), not just for tractability.

2. Equilibrium / solution concept — name it and justify it

  • Pick the concept that matches the question: Nash / subgame-perfect / sequential / PBE; dominant-strategy or Bayesian incentive compatibility (mechanism design); stability / core (matching, market design); rationalizability or level-k (behavioral).
  • State existence and, where it matters, uniqueness (or characterize the equilibrium set). Refinements should be justified, not invoked to rescue a result.

Read the full file on GitHub · 79 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 · 79 lines · 0 tokens per session scan A 1fc24749d5f4

Subscribe to this mod's changes

aejmic-theory-model is a skill published in the GitHub repository brycewang-stanford/Awesome-Journal-Skills (1,289 stars, last pushed 26d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,441 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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