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weatherreporter/docs/cli.md

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# Weatherreporter CLI
`weatherreporter generate daily` currently writes a Daily briefing JSON artifact.
Other report generation and scheduled runs still resolve configuration, report
definitions, and valid periods, then return a not-implemented error.
## Shortest Useful Command
```sh
weatherreporter generate daily --date 2026-05-29 --out ./daily.md
```
The command parses flags, loads configuration, fetches weather data, builds a
Daily briefing, and writes the JSON artifact to `--out`.
## Command Overview
```text
weatherreporter generate daily
weatherreporter generate tomorrow
weatherreporter generate three-day
weatherreporter generate weekend
weatherreporter generate storm --start 2026-05-29T18:00 --end 2026-05-30T06:00
weatherreporter run morning
weatherreporter run evening
```
`generate daily` writes a briefing JSON artifact. Other `generate` commands
resolve one report request and stop before report generation. `run` commands
resolve a scheduled batch request and stop before execution.
## Flags
- `-h`, `--help`: show help.
- `--config PATH`: load configuration from `PATH` instead of `/usr/local/etc/weatherreporter/config.yml`.
- `--units VALUE`: override configured Weather API units.
- `--tz NAME`: override configured Weather API timezone.
- `--out PATH`: output path for `generate daily`; reserved for later generated report output on other `generate` commands.
- `--date YYYY-MM-DD`: optional date for `generate daily`; defaults to the current local date in the configured timezone.
- `--start TIME`: required start time for `generate storm`.
- `--end TIME`: required end time for `generate storm`.
Storm times accept `YYYY-MM-DDTHH:MM` in the configured timezone or RFC3339
timestamps with explicit offsets.