Cron Helper
v1.0.0Explain, generate, and validate cron expressions. Convert plain English schedules to cron syntax and back. Show next run times. Works with standard 5-field a...
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byJoseph Fluckiger@josephflu
MIT-0
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LicenseMIT-0 · Free to use, modify, and redistribute. No attribution required.
Security Scan
OpenClaw
Benign
medium confidencePurpose & Capability
Name/description match the included script: the code parses, explains, generates, validates cron expressions and shows next run times using croniter. The skill does not request unrelated credentials or system access. Minor inconsistency: registry metadata lists no required binaries, while SKILL.md declares a requirement for python3 — this is small but worth noting.
Instruction Scope
Runtime instructions are narrow and explicit: parse user intent, run the included Python script via 'uv run scripts/cron.py <command> ...', and present the output. The SKILL.md does not instruct reading arbitrary files, accessing environment variables, or sending data to external endpoints.
Install Mechanism
No install spec in registry (instruction-only style). The script includes an in-file dependency header (dependencies = ["rich", "croniter"]) and SKILL.md recommends running via 'uv run', which will install Python packages. This is a common and reasonable approach but means pip will be used at runtime — users should verify 'uv' behavior and trust of packages before installing.
Credentials
The skill declares no environment variables or credentials and the code does not reference environment variables or secrets. The dependencies are typical for local CLI output/cron parsing. Again, the mismatch between registry metadata (no required binaries) and SKILL.md (python3 required) is noted but does not indicate secret access.
Persistence & Privilege
always is false and the skill does not request persistent privileges or modify other skills or system-wide configuration. It is user-invocable and can run autonomously by default (normal for skills), but there is no indication it abuses that ability.
Assessment
This skill looks coherent for its stated purpose, but take these precautionary steps before installing or running it: 1) Review the full scripts/cron.py file (ensure there is no hidden network I/O, subprocess.exec, or file writes in portions cut from the provided excerpt). 2) Confirm the runtime: SKILL.md expects 'uv run' and python3; the registry metadata omitted python3 — make sure your environment has a trustworthy Python runtime. 3) 'uv run' will install dependencies (rich, croniter) via pip — review those packages and your organization's policy on installing third-party packages. 4) Run the script in a sandbox or isolated environment the first time to observe behavior. If you need, provide the complete untruncated scripts/cron.py and I can re-check the tail for any unexpected behavior (network calls, file system access, or credential usage).Like a lobster shell, security has layers — review code before you run it.
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License
MIT-0
Free to use, modify, and redistribute. No attribution required.
Runtime requirements
⏰ Clawdis