companieslisted

# fisis -- companies (financial companies in a sector) Discover the company code a FISIS statistic is keyed by. FISIS identifies a time series by a company (`finance_cd`), a statistic (`list_no`), and optionally an account item (`account_cd`); `fisis companies` lists one sector's companies so you can pick the `finance_cd`. The listing and parsing live in the fisis package (on PyPI); this skill is a thin wrapper that calls its CLI and relays the result. A rejected key or a vendor error comes back as a one-line `fisis: <message>` -- relay it as-is rather than throwing a stack trace at the user. (A missing or malformed argument is caught earlier by argparse, which prints usage and exits 2.) ## Prerequisite This plugin calls the `fisis` CLI, so the package must be installed and an API key set: ``` pipx install fisis # or: pip install fisis export FISIS_API_KEY=... # a free key from https://fisis.fss.or.kr/openapi/ ``` That puts the `fisis` command on PATH. The key can also be stored in `~/.config/fisis/credentials.json` as `{"FISIS_API_KEY": "..."}`. Without a key the CLI exits with `fisis: no FISIS API key ...`; relay that and point the user at the FISIS site. **Never print, log, quote, or echo the `FISIS_API_KEY` value itself** -- confirm only that a key is set. ## Running ``` fisis companies --sector <SECTOR> [--finance-cd CODE] [--lang kr|en] [--json] ``` - `--sector` (required) -- the financial sector, by name (`life`, `bank`, `nonlife`, `securiti