trader-copycat

90 / 100 · Low risk

Fine to try.

By Jakeschincariol/trader-skill (GitHub) · other · 1,624 stars · scanned at commit 5189e79

The Reverse Engineer. Reads a famous investor's public SEC filings (the quarterly 13F-HR, plus Form 4 if you want the insider trades) and rebuilds their portfolio as weights you can copy: every position, its share of the fund, what they bought, added, trimmed and sold since the last quarter, with tickers matched to every CUSIP. Then it writes trader/targets.json so the budget skill can size it to your money. Use when the user says "copy Buffett", "copy Berkshire", "what does Ackman own", "rever…

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

The author does not mention this.

Found in 5 places.

trader-copycat/SKILL.md, line 27python3 "${CLAUDE_SKILL_DIR}/edgar13f.py" --help
trader-copycat/SKILL.md, line 70python3 "${CLAUDE_SKILL_DIR}/edgar13f.py" find buffett
trader-copycat/SKILL.md, line 82python3 "${CLAUDE_SKILL_DIR}/edgar13f.py" filings 1067983

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trader-copycat/SKILL.md, line 99python3 "${CLAUDE_SKILL_DIR}/edgar13f.py" diff 1067983
trader-copycat/SKILL.md, line 109python3 "${CLAUDE_SKILL_DIR}/edgar13f.py" copy 1067983 --top 5 --out trader/targets.json

Connects to the internet

The author does not mention this.

Found in 4 places.

trader-copycat/edgar13f.py, line 55import urllib.request
trader-copycat/edgar13f.py, line 138return self._open(urllib.request.Request(url, headers=headers), url)
trader-copycat/edgar13f.py, line 149req = urllib.request.Request(url, data=json.dumps(payload).encode("utf-8"),

Show 1 more

trader-copycat/edgar13f.py, line 156with urllib.request.urlopen(req, timeout=60) as resp:

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'trader-copycat' ] || [ -L ~/.agents/skills/'trader-copycat' ]; then echo 'A skill folder named trader-copycat already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/Jakeschincariol/trader-skill' "$d" && git -C "$d" checkout --quiet '5189e79b9a480755a3733ac9713f5353981dbe18' -- 'trader-copycat' && mkdir -p ~/.agents/skills && cp -R "$d"/'trader-copycat' ~/.agents/skills/'trader-copycat' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'trader-copycat' ~/.claude/skills/'trader-copycat' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-08	`5189e79`	90
2026-11-07	`5189e79`	70