Headless Cron Creator Skill

Generate headless Claude Code cron jobs from a task description and schedule. Creates a wrapper script with safety mechanisms (lockfile, budget cap, dry-run default, logging) and installs crontab entries. All crontab mutations go through scripts/crontab-manager.py, which writes to temp files and creates timestamped backups in ~/.claude/crontab-backups/ before every change -- never pipe directly to crontab - because a mid-stream pipe failure wipes the entire crontab.

Instructions

Phase 1: PARSE

Extract job parameters from the user's request.

Required parameters:

• name -- short kebab-case identifier (e.g., reddit-automod, feed-health-check)
• prompt -- what Claude should do each run (natural language)
• schedule -- cron expression or human-readable interval

Optional parameters (with defaults):

• workdir -- where to cd before running (default: current repo root)
• budget -- max USD per run (default: 2.00; user may override)
• allowed-tools -- which tools the headless session can use (default: Bash Read; user may override)