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Generate headless Claude Code cron jobs with safety.
Passed 17 of 20 test cases with the skill, and 5 of 20 without it.
and 16 more in the full report
13 fixed6 passed either way3 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 13 test cases the skill fixed. Same model, same prompt, with and without the skill.
I am creating a headless task named 'feed-sync' to process incoming webhooks. I haven't specified a maximum budget. What spend limit parameter value should be configured by default in the generator command?
| Checked | Without skill | With skill |
|---|---|---|
| Sets --budget to 2.00 in the wrapper generator parameters | Missed | Passed |
The instructions your model reads when the skill loads.
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.
Extract job parameters from the user's request.
Required parameters:
reddit-automod, feed-health-check)Optional parameters (with defaults):
cd before running (default: current repo root)2.00; user may override)Bash Read; user may override){workdir}/cron-logs/{name})Human-readable schedule conversion -- use off-minutes (7, 23, 47) instead of :00/:30 because every cron job on the system fires at round minutes, creating load spikes:
| Human Input | Cron Expression |
|---|---|
| every 12 hours | 7 */12 * * * |
| twice daily | 7 8,20 * * * |
| hourly | 23 * * * * |
| daily at 6am | 7 6 * * * |
| weekly on sunday | 7 9 * * 0 |
| every 30 minutes | */30 * * * * |
Gate: All required parameters extracted. Proceed to Phase 2.
Create the wrapper script using crontab-manager.py generate-wrapper. Embed the prompt via bash heredoc to avoid escaping issues.
python3 ~/.claude/scripts/crontab-manager.py generate-wrapper \
test cases passed, vs 5 / 20 without
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