How do I install the History skill?

Run npx skillmds@latest add seokhoonj/history in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is History safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with History?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is History free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published History?

seokhoonj (@seokhoonj) published this skill. Their other Agent Skills are listed on their SkillMD profile.

History by seokhoonj — Agent Skill

Name: History
Author: seokhoonj

History

Fetch a symbol's OHLCV price history (and its split/dividend events) from Yahoo Finance. Holds no logic of its own -- it calls the finyahoo package's CLI (`finyahoo history`) and shows the result to the user. Works for US stocks (AAPL), Korean tickers (005930.KS), and indices (^GSPC). Trigger phrases: price history, OHLCV, stock chart data, get prices for, 시세 가져와, 주가 이력, 차트 데이터.

seokhoonj ffbacf0 2.9 KB Updated Sep 17, 2026

File contents

finyahoo — price history

Take a ticker and print its OHLCV bars (with the split and dividend events over the same span). The fetching and parsing live in the finyahoo package (on PyPI); this skill is a thin wrapper that calls its CLI and relays the result. A delisted ticker, a rate block, and the like come back from the CLI as a one-line error -- relay that message as-is rather than throwing a stack trace at the user.

Prerequisite

This plugin calls the finyahoo CLI, so the package must be installed first:

pipx install finyahoo        # or: pip install finyahoo

That puts the finyahoo command on PATH. No API key or login is needed -- Yahoo's endpoints are public and the client handles the session token itself.

Running

finyahoo history "<SYMBOL>" [options]

Options (finyahoo history --help is the source of truth):

--start YYYY-MM-DD — inclusive start date (default: Yahoo's earliest bar).
--end YYYY-MM-DD — inclusive end date (default: the latest bar).
--timeframe day|week|month — bar size (default: day).
--json — full series as JSON instead of the text summary.

The text output is a one-line summary (symbol, bar count, split/dividend counts) plus the most recent few bars. Use --json when the user wants the whole series or machine- readable data.

Procedure

Get the symbol. Find a Yahoo ticker in the user's message (US: AAPL; Korean: 005930.KS / .KQ; index: ^GSPC). If there is none, ask. Handle several one at a time.
Run. Call the CLI. Add --start/--end/--timeframe only when the user asked for a specific window or bar size; add --json when they want the full series.
```
finyahoo history "AAPL" --start 2024-01-01
```
Relay the result. Show the CLI's stdout to the user. You may trim a long series, but keep the summary line.
Error handling. When the CLI exits non-zero, relay the one-line finyahoo: <message> from stderr as-is. Common ones:
- command not found: finyahoo -> the package is not installed; point the user at pipx install finyahoo.
- Not Found -> a delisted or unknown ticker (Yahoo has no data for it).
- a 429 / refusing-this-client message -> Yahoo is rate-limiting; wait and retry, or space requests out.

What this skill does not do

It does not re-implement fetching or parsing (the package does); it always calls the CLI.
It is history only -- for the current fundamentals snapshot, use the profile skill.

---name: historydescription: Fetch a symbol's OHLCV price history (and its split/dividend events) from Yahoo Finance. Holds no logic of its own -- it calls the finyahoo package's CLI (`finyahoo history`) and shows the result to the user. Works for US stocks (AAPL), Korean tickers (005930.KS), and indices (^GSPC). Trigger phrases: price history, OHLCV, stock chart data, get prices for, 시세 가져와, 주가 이력, 차트 데이터.---# finyahoo — price historyTake a ticker and print its OHLCV bars (with the split and dividend events over thesame span). The fetching and parsing live in the finyahoo package (on PyPI); this skillis a thin wrapper that calls its CLI and relays the result. A delisted ticker, a rateblock, and the like come back from the CLI as a one-line error -- relay that messageas-is rather than throwing a stack trace at the user.## PrerequisiteThis plugin calls the `finyahoo` CLI, so the package must be installed first:```pipx install finyahoo # or: pip install finyahoo```That puts the `finyahoo` command on PATH. No API key or login is needed -- Yahoo'sendpoints are public and the client handles the session token itself.## Running```finyahoo history "<SYMBOL>" [options]```Options (`finyahoo history --help` is the source of truth):- `--start YYYY-MM-DD` — inclusive start date (default: Yahoo's earliest bar).- `--end YYYY-MM-DD` — inclusive end date (default: the latest bar).- `--timeframe day|week|month` — bar size (default: day).- `--json` — full series as JSON instead of the text summary.The text output is a one-line summary (symbol, bar count, split/dividend counts) plusthe most recent few bars. Use `--json` when the user wants the whole series or machine-readable data.## Procedure1. **Get the symbol.** Find a Yahoo ticker in the user's message (US: `AAPL`; Korean: `005930.KS` / `.KQ`; index: `^GSPC`). If there is none, ask. Handle several one at a time.2. **Run.** Call the CLI. Add `--start`/`--end`/`--timeframe` only when the user asked for a specific window or bar size; add `--json` when they want the full series. ```bash finyahoo history "AAPL" --start 2024-01-01 ```3. **Relay the result.** Show the CLI's stdout to the user. You may trim a long series, but keep the summary line.4. **Error handling.** When the CLI exits non-zero, relay the one-line `finyahoo: <message>` from stderr as-is. Common ones: - `command not found: finyahoo` -> the package is not installed; point the user at `pipx install finyahoo`. - `Not Found` -> a delisted or unknown ticker (Yahoo has no data for it). - a 429 / refusing-this-client message -> Yahoo is rate-limiting; wait and retry, or space requests out.## What this skill does not do- It does not re-implement fetching or parsing (the package does); it always calls the CLI.- It is history only -- for the current fundamentals snapshot, use the `profile` skill.

Frequently asked questions