Claude Scheduler

claude-scheduler

Claude runs this skill by calling the scheduler CLI via the Bash tool. You have been pre-authorized: creating a task activates it immediately; removing a task unregisters and deletes it without confirmation.

Locate the CLI relative to this skill file (it lives next to SKILL.md). Prefer invoking it by absolute path, e.g. /path/to/claude-scheduler/scheduler.

When to invoke

Invoke this skill when the user asks for something that should happen on a recurring schedule and needs Claude reasoning each time:

• "每天九点写日报"
• "每周五下午 5 点汇总 git 活动"
• "Every weekday morning, check my inbox and summarize"
• "Run this prompt daily at 08:00"

Do NOT invoke for:

• Plain shell commands on a schedule (use cron/at directly).
• One-off runs (just call claude -p inline).
• Windows targets (unsupported).

CLI cheatsheet

scheduler add <name> \
    --schedule "<expr>"       \  # REQUIRED
    --prompt-file <path>      \  # REQUIRED
    [--output-file <path>]       \
    [--output-dir <path>]        \
    [--allowed-tools "<list>"]   \
    [--add-dirs "<comma,list>"]  \
    [--skip-if-exists true|false]

scheduler list [--json]
scheduler rm <name>
scheduler run <name> [YYYY-MM-DD]
scheduler status [<name>]

<expr> accepts three forms:

• "daily HH:MM" → fires every day at HH:MM
• "weekdays HH:MM" → Monday–Friday at HH:MM
• "M H * * D" → cron form; D must be * or 1-5

Output paths support $DATE, $HOME, and ~.

Typical recipes

1. Daily report at 09:00, weekdays only

Step 1 — write the prompt to disk (e.g. ~/prompts/daily.md):

cat > ~/prompts/daily.md <<'PROMPT'
Read ~/lifelog/$(date +%Y-%m-%d).md and git activity in ~/workspace,
produce a concise daily report in Markdown.
PROMPT

Step 2 — register:

scheduler add daily-report \
    --schedule "weekdays 09:00" \
    --prompt-file ~/prompts/daily.md \
    --output-dir  ~/workspace/daily-reports \
    --allowed-tools "Bash(git:*) Read Glob" \
    --add-dirs "~/workspace,~/lifelog"

2. Weekly code review every Friday 17:00

scheduler add weekly-review \
    --schedule "0 17 * * 5" \
    --prompt-file ~/prompts/weekly-review.md \
    --output-file ~/reports/weekly-$DATE.md \
    --allowed-tools "Bash(git:*) Read Glob Grep"

3. Hourly inbox triage (cron form)

scheduler add inbox-triage \
    --schedule "0 * * * *" \
    --prompt-file ~/prompts/inbox.md

Wait — * in the day-of-week slot is supported; 0 * * * * runs every hour.

4. Inspect and remove

scheduler list --json
scheduler status daily-report
scheduler rm inbox-triage

Contract guarantees (runtime guardrails)

• Stderr from claude -p is captured to a per-task log (~/Library/Logs/claude-scheduler-<name>.log on macOS, ~/.local/state/claude-scheduler/<name>.log on Linux).
• Output files are written atomically via mktemp+mv; a failed run never pollutes the previous output.
• --skip-if-exists true (default) lets a task be re-triggered safely without overwriting an already-produced file.

Authorization model

You may create, modify, and remove tasks without asking. Mention the created task name and schedule in your reply so the user can correct you afterward. If the user asks "what did you schedule?", run scheduler list and show the output.

Backend selection

The CLI probes in order:

1. macOS → launchd (writes ~/Library/LaunchAgents/com.claude.scheduler.<name>.plist)
2. Linux → systemd --user if available (writes ~/.config/systemd/user/claude-scheduler-<name>.{service,timer})
3. Fallback → crontab (adds a marker-commented line: # claude-scheduler:<name>)

You do not need to pick the backend explicitly — the CLI handles it.

Getting help

Every subcommand supports --help. Run scheduler --help for the top-level menu.