Industry Value-Investing Funnel
xbtlin/ai-berkshire
Runs a layered value-investing screen on an industry or theme, narrowing from a 30-to-60 company market scan down to 3 final candidates with documented elimination reasons at each layer.
A skill your agent uses when the identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID or an event study.
No licenceAuto-check passed
Install Cie Did Identification
$ npx skills add franklee16/academic-research-skills --skill cie-did-identification -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install franklee16/academic-research-skills cie-did-identification --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/franklee16/academic-research-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification .claude/skills/cie-did-identification && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "cie-did-identification" agent skill from https://github.com/franklee16/academic-research-skills/tree/master/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification into .claude/skills/cie-did-identification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cie-did-identification", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/franklee16/academic-research-skills/tree/master/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identificationType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add franklee16/academic-research-skills --skill cie-did-identification -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install franklee16/academic-research-skills cie-did-identification --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/franklee16/academic-research-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification .agents/skills/cie-did-identification && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cie-did-identification" agent skill from https://github.com/franklee16/academic-research-skills/tree/master/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification into .agents/skills/cie-did-identification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cie-did-identification", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add franklee16/academic-research-skills --skill cie-did-identification -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install franklee16/academic-research-skills cie-did-identification --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/franklee16/academic-research-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification .cursor/skills/cie-did-identification && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "cie-did-identification" agent skill from https://github.com/franklee16/academic-research-skills/tree/master/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification into .cursor/skills/cie-did-identification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cie-did-identification", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/franklee16/academic-research-skills.git --path Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add franklee16/academic-research-skills --skill cie-did-identification -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install franklee16/academic-research-skills cie-did-identification --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/franklee16/academic-research-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification .gemini/skills/cie-did-identification && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "cie-did-identification" agent skill from https://github.com/franklee16/academic-research-skills/tree/master/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification into .gemini/skills/cie-did-identification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cie-did-identification", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install franklee16/academic-research-skills cie-did-identificationInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add franklee16/academic-research-skills --skill cie-did-identification -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/franklee16/academic-research-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification .github/skills/cie-did-identification && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "cie-did-identification" agent skill from https://github.com/franklee16/academic-research-skills/tree/master/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification into .github/skills/cie-did-identification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cie-did-identification", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add franklee16/academic-research-skills --skill cie-did-identification -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install franklee16/academic-research-skills cie-did-identification --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/franklee16/academic-research-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification .opencode/skills/cie-did-identification && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "cie-did-identification" agent skill from https://github.com/franklee16/academic-research-skills/tree/master/Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification into .opencode/skills/cie-did-identification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cie-did-identification", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
cie-did-identification- GitHub stars
- 223
- Used in
- 1 other repo
- Token cost
- ~498 tokens
- SKILL.md length
- 106 words
- Files
- 1
- Skills in repo
- 1,617
- Repo updated
- First seen
- Licence
- None found
At a glance
A skill your agent uses when the identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID or an event study.
- Works in 3 steps: 平行趋势必须画事件研究图（动态效应 + 95% CI，处理前各期系数应不显著） → 安慰剂检验必做（随机化处理时点/处理对象 500—1000… → 交错处理必须用异质性稳健估计——TWFE 在交错+异质性处理效应下有偏（负权重问题）
- The identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID
- SKILL.md covers 触发时机, 本刊红线（缺一即高危退修）, 分支路径 and 必查清单, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Cie Did Identification is an agent skill from franklee16/academic-research-skills. Use when the identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID or an event study. Mandates parallel-trends event-study plots, placebo tests, and modern heterogeneity-robust estimators (Callaway-Sant'Anna, Sun-Abraham, de Chaisemartin-D'Haultfœuille, Goodman-Bacon decomposition) whenever treatment timing varies.
Its SKILL.md is about 500 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: Comprehensive collection of Claude Code skills for academic research in economics, finance, and social sciences.
When your agent uses it
- The identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID
Example prompts
- “Anna, Sun-Abraham, de Chaisemartin-D”
- “/cie-did-identification”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- 平行趋势必须画事件研究图（动态效应 + 95% CI，处理前各期系数应不显著）
- 安慰剂检验必做（随机化处理时点/处理对象 500—1000 次，看真实估计是否落在分布尾部）
- 交错处理必须用异质性稳健估计——TWFE 在交错+异质性处理效应下有偏（负权重问题）
What it can do on your machine
Read from SKILL.md and the folder at commit 9a4b2db. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Cie Did Identification loads about 498 tokens when it runs. Until then it costs about 99 tokens; SKILL.md has 106 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 106 words (~498 tokens).
- name
- cie-did-identification
Files
Just SKILL.md in Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification of franklee16/academic-research-skills.
Open the folder on GitHubat commit 9a4b2db
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in franklee16/academic-research-skills, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Cie Did Identification next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Cie Did Identification this skillfranklee16/academic-research-skills | 223 | 1 repos | ~498 | Automated safety check: Pass | None | |
| Industry Value-Investing Funnelxbtlin/ai-berkshire | 17k | — | ~1.6k | Automated safety check: Pass | MIT | |
| Industry Investment Research Frameworkxbtlin/ai-berkshire | 17k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Identification Theorybrycewang-stanford/Auto-Empirical-Research-Skills | 4.6k | — | ~3.9k | Automated safety check: Pass | Custom licence | |
| Identification Proofsbrycewang-stanford/Auto-Empirical-Research-Skills | 4.6k | — | ~2.5k | Automated safety check: Pass | Custom licence | |
| Industry Chain Investment Analysisdigoal/blog | 8.6k | — | ~1.1k | Automated safety check: Pass | GPL-2.0 |
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Industry Chain Investment Analysis
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Questions about Cie Did Identification
What does Cie Did Identification do?
A skill your agent uses when the identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID or an event study. Cie Did Identification is an agent skill from franklee16/academic-research-skills. Use when the identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID or an event study.
When should I use Cie Did Identification?
Cie Did Identification fits situations like: the identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID.
How do I install Cie Did Identification in Claude Code?
Run `npx skills add franklee16/academic-research-skills --skill cie-did-identification -a claude-code`. Or copy the skill folder (Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification in franklee16/academic-research-skills) into .claude/skills/cie-did-identification in your project. Claude Code loads it when a task matches its description.
How do I install Cie Did Identification in Codex?
Run `npx skills add franklee16/academic-research-skills --skill cie-did-identification -a codex`. Or copy the skill folder (Awesome-Journal-Skills-main/China-Industrial-Economics-Skills/skills/cie-did-identification in franklee16/academic-research-skills) into .agents/skills/cie-did-identification in your project. Codex loads it when a task matches its description.
Can I use Cie Did Identification in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add franklee16/academic-research-skills --skill cie-did-identification -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cie-did-identification, .gemini/skills/cie-did-identification, .github/skills/cie-did-identification and .opencode/skills/cie-did-identification in your project.
What does Cie Did Identification need to run?
SKILL.md names no scripts, command-line tools or credentials: Cie Did Identification is instructions for the agent only.
Does Cie Did Identification access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Cie Did Identification safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Cie Did Identification use?
No licence was found for Cie Did Identification or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Cie Did Identification use?
About 498 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Cie Did Identification?
Skills that share tags, products or a category with Cie Did Identification: Industry Value-Investing Funnel (xbtlin/ai-berkshire, 17k stars), Industry Investment Research Framework (xbtlin/ai-berkshire, 17k stars), Identification Theory (brycewang-stanford/Auto-Empirical-Research-Skills, 4.6k stars) and Identification Proofs (brycewang-stanford/Auto-Empirical-Research-Skills, 4.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cie Did Identification?
franklee16 (a GitHub user) maintains it in franklee16/academic-research-skills, which has 223 GitHub stars. The repository holds 1,617 skills in this directory. The repository was last updated on September 18, 2026.
Source: franklee16/academic-research-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.