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Install in OpenClaw
/install smart-cron
Description
Schedule and manage OpenClaw tasks using natural language with timezone support, failure alerts, logs, and full cron lifecycle commands.
Usage Guidance
This skill is plausible but inconsistent in key ways. Before installing or enabling it: (1) verify the referenced GitHub repo and confirm a trustworthy release/binary or install steps (no code is bundled here); (2) ask the author how WhatsApp/Telegram alerts are implemented and what credentials will be needed — don't provide API keys unless you trust the implementation; (3) be aware the agent will run shell commands (exec) and will edit your crontab and write to ~/.openclaw/workspace/smart-cron-data/ — back up your crontab and review any files created; (4) prefer a version that includes source or a vetted install method, or request explicit instructions for credential configuration and a privacy/telemetry statement. If you need high assurance, treat this as untrusted until you can review the upstream code and alert-channel integration.
Capability Analysis
Type: OpenClaw Skill
Name: smart-cron
Version: 1.0.0
The skill is classified as suspicious due to its reliance on the `exec` tool (declared in `skill.json`) and the ability to schedule arbitrary commands via the `smart-cron add --task` functionality described in `SKILL.md`. While these capabilities are central to a cron scheduler's purpose, they introduce a significant risk of Remote Code Execution (RCE) if the OpenClaw agent is susceptible to prompt injection or if the underlying skill implementation fails to sanitize user-provided task commands before passing them to the system's cron daemon. This represents a critical vulnerability rather than explicit malicious intent within the provided files.
Capability Assessment
Purpose & Capability
Skill describes a CLI that manipulates system cron, stores logs locally, and sends WhatsApp/Telegram alerts. The skill.json declares exec and message tools which fit cron manipulation, but SKILL.md also claims 'zero external dependencies' while listing Python 3.8+ and external alert channels — and yet no install artifacts or credentials are provided. The public GitHub URL is referenced but no code is bundled, which is unexpected for a full-featured CLI.
Instruction Scope
Runtime instructions direct the agent to manage crontab entries and write/read data in ~/.openclaw/workspace/smart-cron-data/, which is consistent with scheduling. However, failure-alert behavior (WhatsApp/Telegram) is described but no mechanism, endpoints, or credential setup is given — the agent may need to access external services or secrets not declared. The SKILL.md examples also imply running arbitrary tasks (e.g., 'summarize my emails') that could require unrelated credentials if invoked.
Install Mechanism
No install spec and no code files are included; this reduces disk-write risk (instruction-only). That said, the skill advertises a CLI and links to a GitHub repo but provides no bundled binary or install steps — an inconsistency that requires clarification from the author.
Credentials
The skill requires no environment variables in metadata, yet promises external alerting channels that typically require API keys/tokens (WhatsApp, Telegram). There is no declared primary credential or guidance for configuring credentials — this is disproportionate and ambiguous. The skill will also write to ~/..., and will need permission to edit crontab, which is expected but privilege-sensitive.
Persistence & Privilege
always:false and user-invocable:true (defaults) — no excessive platform persistence is requested. The skill will create local data under ~/.openclaw/workspace/smart-cron-data/ and may modify system crontab; those are expected for a scheduler but are persistent, so users should consent.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install smart-cron - After installation, invoke the skill by name or use
/smart-cron - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial release of Smart Cron — schedule OpenClaw tasks in plain English, no cron syntax needed.
- Natural language scheduling (e.g., "every weekday at 9am", "first Monday of month")
- Full lifecycle management: add, list, remove, pause, resume jobs
- Timezone-aware scheduling and dual-time display
- Failure alerts via WhatsApp/Telegram
- Next run preview and persistent run logs
- No external dependencies beyond system cron and OpenClaw
Metadata
Frequently Asked Questions
What is Smart Cron?
Schedule and manage OpenClaw tasks using natural language with timezone support, failure alerts, logs, and full cron lifecycle commands. It is an AI Agent Skill for Claude Code / OpenClaw, with 1111 downloads so far.
How do I install Smart Cron?
Run "/install smart-cron" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Smart Cron free?
Yes, Smart Cron is completely free (open-source). You can download, install and use it at no cost.
Which platforms does Smart Cron support?
Smart Cron is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Smart Cron?
It is built and maintained by mariusfit (@mariusfit); the current version is v1.0.0.
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